TPS709
SBVS186H – MARCH 2012 – REVISED JULY 2021
TPS709 150-mA, 30-V, 1-µA IQ Voltage Regulators With Enable
1 Features
3 Description
•
•
•
•
•
•
•
The TPS709 series of linear regulators are ultralow,
quiescent current devices designed for powersensitive applications. A precision band-gap and error
amplifier provides 2% accuracy over temperature.
Quiescent current of only 1 µA makes these
devices ideal solutions for battery-powered, alwayson systems that require very little idle-state power
dissipation. These devices have thermal-shutdown,
current-limit, and reverse-current protections for
added safety.
2 Applications
•
•
•
•
•
•
•
Smoke and heat detectors
Thermostats
Motion detectors (PIR, uWave, and so forth)
Cordless power tools
Appliance battery packs
Electricity meters
Water meters
Shutdown mode is enabled by pulling the EN pin low.
The shutdown current in this mode goes down to
150 nA, typical.
The TPS709 series is available in WSON-6 and
SOT-23-5 packages.
Device Information(1)
PART NUMBER
TPS709
(1)
PACKAGE
BODY SIZE (NOM)
SOT-23 (5)
2.90 mm × 1.60 mm
WSON (6)
2.00 mm × 2.00 mm
For all available packages, see the package option
addendum at the end of the datasheet.
2
Typical Application Circuit
Ground Pin Current (µA)
•
•
Ultra-low IQ: 1 μA
Reverse current protection
Low ISHUTDOWN: 150 nA
Input voltage range: 2.7 V to 30 V
Supports 200-mA peak output
2% accuracy over temperature
Available in fixed-output voltages:
1.2 V to 6.5 V
Thermal shutdown and overcurrent protection
Packages: SOT-23-5, WSON-6
1.8
1.5
1.2
1
TA = −40°C
TA = +25°C
TA = +85°C
0.8
TPS70912
0.5
0
5
10
15
20
Input Voltage (V)
25
30
35
G014
GND Current vs VIN and Temperature
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
TPS709
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SBVS186H – MARCH 2012 – REVISED JULY 2021
Table of Contents
1 Features............................................................................1
2 Applications..................................................................... 1
3 Description.......................................................................1
4 Revision History.............................................................. 2
5 Pin Configuration and Functions...................................3
6 Specifications.................................................................. 4
6.1 Absolute Maximum Ratings........................................ 4
6.2 ESD Ratings............................................................... 4
6.3 Recommended Operating Conditions.........................4
6.4 Thermal Information....................................................4
6.5 Electrical Characteristics.............................................5
6.6 Typical Characteristics................................................ 6
7 Detailed Description......................................................12
7.1 Overview................................................................... 12
7.2 Functional Block Diagram......................................... 12
7.3 Feature Description...................................................12
7.4 Device Functional Modes..........................................13
8 Application and Implementation.................................. 14
8.1 Application Information............................................. 14
8.2 Typical Application.................................................... 14
9 Power Supply Recommendations................................15
9.1 Power Dissipation..................................................... 15
10 Layout...........................................................................16
10.1 Layout Guidelines................................................... 16
10.2 Layout Example...................................................... 16
11 Device and Documentation Support..........................17
11.1 Device Support........................................................17
11.2 Documentation Support.......................................... 17
11.3 Support Resources................................................. 17
11.4 Trademarks............................................................. 17
11.5 Electrostatic Discharge Caution.............................. 17
11.6 Glossary.................................................................. 17
12 Mechanical, Packaging, and Orderable
Information.................................................................... 18
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision G (November 2015) to Revision H (July 2021)
Page
• Updated the numbering format for tables, figures, and cross-references throughout the document..................1
• Changed Applications section............................................................................................................................ 1
• Changed VEN(HI) row (changed parameter description and added test condition) in Electrical Characteristics
table.................................................................................................................................................................... 5
• Added VEN(LOW) row to Electrical Characteristics table...................................................................................... 5
• Added M3 suffix information to Device Nomenclature table............................................................................. 17
Changes from Revision F (December 2014) to Revision G (November 2015)
Page
• Added DBV package for TPS709A to Pin Configurations and Functions section.............................................. 3
• Added DBV package for TPS709B to Pin Configurations and Functions section.............................................. 3
• Added TPS709A and TPS709B to Pin Functions table...................................................................................... 3
• Moved operating junction temperature from Electrical Characteristics to Recommended Operating Conditions
............................................................................................................................................................................4
2
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5 Pin Configuration and Functions
1
GND
2
EN
3
5
OUT
4
NC
Figure 5-1. TPS709: DBV Package, 5-Pin SOT-23,
Top View
GND
1
IN
2
OUT
3
5
4
1
GND
2
IN
3
5
EN
4
NC
Figure 5-2. TPS709A: DBV Package, 5-Pin SOT-23,
Top View
EN
NC
Figure 5-3. TPS709B: DBV Package, 5-Pin SOT-23,
Top View
OUT
OUT
1
NC
2
GND
3
GND
IN
6
IN
5
NC
4
EN
Figure 5-4. DRV Package, 6-Pin WSON, Top View
Table 5-1. Pin Functions
PIN
DRV
NAME
TPS709
DBV
TPS709
I/O
DESCRIPTION
Enable pin. Drive this pin high to enable the device. Drive this pin
low to put the device into low current shutdown. This pin can be
left floating to enable the device. The maximum voltage must remain
below 6.5 V.
TPS709A TPS709B
EN
4
3
5
5
I
GND
3
2
2
1
—
IN
6
1
3
2
I
NC
2, 5
4
4
4
—
No internal connection
1
5
1
3
O
Regulated output voltage. Connect a small 2.2-µF or greater ceramic
capacitor from this pin to ground to assure stability.
—
—
—
—
The thermal pad is electrically connected to the GND node. Connect
this pad to the GND plane for improved thermal performance.
OUT
Thermal pad
Ground
Unregulated input to the device
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6 Specifications
6.1 Absolute Maximum Ratings
specified at TJ = –40°C to 125°C (unless otherwise noted); all voltages are with respect to GND(1)
MIN
Voltage
Maximum output current
MAX
UNIT
VIN
–0.3
32
VEN
–0.3
7
VOUT
–0.3
7
IOUT
V
Internally limited
Output short-circuit duration
Indefinite
Continuous total power dissipation
PDISS
See Thermal Information
Operating junction temperature, TJ
–55
150
°C
Storage temperature, Tstg
–55
150
°C
(1)
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress
ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under
Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device
reliability.
6.2 ESD Ratings
VALUE
V(ESD)
(1)
(2)
Electrostatic discharge
Human body model (HBM), per ANSI/ESDA/JEDEC
JS-001(1)
UNIT
±2000
Charged device model (CDM), per JEDEC specification JESD22-C101(2)
V
±500
JEDEC document JEP155 states that 2-kV HBM allows safe manufacturing with a standard ESD control process.
JEDEC document JEP157 states that 500-V CDM allows safe manufacturing with a standard ESD control process.
6.3 Recommended Operating Conditions
over operating junction temperature range (unless otherwise noted)
MIN
NOM
MAX
UNIT
VIN
Input voltage
2.7
30
V
VOUT
Output voltage
1.2
6.5
V
VEN
Enable voltage
0
6.5
V
TJ
Operating junction temperature
–40
125
°C
6.4 Thermal Information
TPS709
THERMAL
DBV
DRV
5 PINS
6 PINS
UNIT
RθJA
Junction-to-ambient thermal resistance
212.1
73.1
°C/W
RθJC(top)
Junction-to-case (top) thermal resistance
78.5
97.0
°C/W
RθJB
Junction-to-board thermal resistance
39.5
42.6
°C/W
ψJT
Junction-to-top characterization parameter
2.86
2.9
°C/W
ψJB
Junction-to-board characterization parameter
38.7
42.9
°C/W
RθJC(bot)
Junction-to-case (bottom) thermal resistance
N/A
12.8
°C/W
(1)
4
METRIC(1)
For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report.
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6.5 Electrical Characteristics
at ambient temperature (TA) = –40°C to +85°C, VIN = VOUT(typ) + 1 V or 2.7 V (whichever is greater), IOUT = 1 mA, VEN = 2 V,
and CIN = COUT = 2.2-μF ceramic (unless otherwise noted); typical values are at TA = 25°C
PARAMETER
VIN
Input voltage range
VOUT
Output voltage range
VOUT
DC output accuracy
ΔVOUT
ISHUTDOWN
PSRR
Shutdown current
Power-supply rejection
ratio
VOUT ≥ 3.3 V
–1%
1%
3
10
20
50
TPS70933, IOUT = 50 mA
295
650
TPS70933, IOUT = 150 mA
960
1400
TPS70950, IOUT = 50 mA
245
500
TPS70950, IOUT = 150 mA
690
1200
TPS70965, IOUT = 50 mA
180
500
TPS70965, IOUT = 150 mA
460
1000
VOUT = 0.9 × VOUT(nom)
200
320
500
1.3
2.05
IOUT = 0 mA, VOUT > 3.3 V
1.4
2.25
IOUT = 150 mA
350
VEN ≤ 0.4 V, VIN = 2.7 V
150
f = 10 Hz
80
f = 100 Hz
62
f = 1 kHz
52
VOUT(nom) ≤ 3.3 V
200
600
VOUT(nom) > 3.3 V
500
1500
Start-up time(2)
VEN(HI)
Enable pin high-level
input voltage
Device enabled
0.9
VEN(LOW)
Enable pin low-level input
Device disabled
voltage
0
IEN
EN pin current
EN = 1.0 V, VIN = 5.5 V
Reverse current
(flowing out of IN pin)
VOUT = 3 V, VIN = VEN = 0 V
10
Reverse current
(flowing into OUT pin)
VOUT = 3 V, VIN = VEN = 0 V
100
Shutdown, temperature increasing
158
Reset, temperature decreasing
140
(1)
(2)
(3)
(4)
Thermal shutdown
temperature
mV
mA
µA
dB
190
tSTR
mV
nA
BW = 10 Hz to 100 kHz, IOUT = 10 mA,
VIN = 2.7 V, VOUT = 1.2 V
Output noise voltage
tSD
V
6.5
Vn
I(REV)
V
2%
VIN = VOUT(typ) + 1.5 V or 3 V (whichever is
greater), 100 µA ≤ IOUT ≤ 150 mA
UNIT
30
1.2
Load regulation
Ground pin current
MAX
–2%
IOUT = 0 mA, VOUT ≤ 3.3 V
IGND
TYP
VOUT < 3.3 V
(VOUT(nom) + 1 V, 2.7 V) ≤ VIN ≤ 30 V
Output current limit(4)
I(CL)
MIN
2.7
Line regulation
Dropout voltage(1) (3)
VDO
TEST CONDITIONS
μVRMS
µs
V
0.4
300
V
nA
nA
°C
VDO is measured with VIN = 0.98 × VOUT(nom).
Start-up time = time from EN assertion to 0.95 × VOUT(nom) and load = 47 Ω.
Dropout is only valid when VOUT ≥ 2.8 V because of the minimum input voltage limits.
Measured with VIN = VOUT + 3 V for VOUT ≤ 2.5 V. Measured with VIN = VOUT + 2.5 V for VOUT > 2.5 V.
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6.6 Typical Characteristics
over operating temperature range (TJ = –40°C to 125°C), IOUT = 10 mA, VEN = 2 V, COUT = 2.2 μF, and VIN = VOUT(typ) + 1 V
or 2.7 V (whichever is greater), unless otherwise noted; typical values are at TJ = 25°C
3.31
TJ = −40°C
TJ = +25°C
TJ = +85°C
TJ = +125°C
Output Voltage (V)
Output Voltage (V)
1.205
1.2
TJ = −40°C
TJ = +25°C
TJ = +85°C
TJ = +125°C
3.305
3.3
3.295
TPS70912
1.195
0
TPS70933
5
10
15
20
Input Voltage (V)
25
3.29
30
15
20
Input Voltage (V)
25
30
G002
1.205
TJ = −40°C
TJ = +25°C
TJ = +85°C
TJ = +125°C
1.2
Output Voltage (V)
6.505
TJ = −40°C
TJ = +25°C
TJ = +85°C
TJ = +125°C
6.5
6.495
1.195
1.19
1.185
TPS70965
5
TPS70912
10
15
20
Input Voltage (V)
25
1.18
30
0
20
40
G003
Figure 6-3. 6.5-V Line Regulation vs VIN and Temperature
60
80
100
Output Current (mA)
120
140
160
G004
Figure 6-4. 1.2-V Load Regulation vs IOUT and Temperature
6.505
3.305
TJ = −40°C
TJ = +25°C
TJ = +85°C
TJ = +125°C
TJ = −40°C
TJ = +25°C
TJ = +85°C
TJ = +125°C
6.5
6.495
Output Voltage (V)
3.3
Output Voltage (V)
10
Figure 6-2. 3.3-V Line Regulation vs VIN and Temperature
6.51
6.49
5
G001
Figure 6-1. 1.2-V Line Regulation vs VIN and Temperature
Output Voltage (V)
0
3.295
3.29
3.285
6.49
6.485
6.48
6.475
6.47
3.28
6.465
TPS70933
3.275
0
20
40
60
80
100
Output Current (mA)
120
140
160
TPS70965
0
G005
Figure 6-5. 3.3-V Load Regulation vs IOUT and Temperature
6
6.46
20
40
60
80
100
Output Current (mA)
120
140
160
G006
Figure 6-6. 6.5-V Load Regulation vs IOUT and Temperature
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6.6 Typical Characteristics (continued)
over operating temperature range (TJ = –40°C to 125°C), IOUT = 10 mA, VEN = 2 V, COUT = 2.2 μF, and VIN = VOUT(typ) + 1 V
or 2.7 V (whichever is greater), unless otherwise noted; typical values are at TJ = 25°C
1.205
6.505
IOUT = 10 mA
IOUT = 150 mA
Output Voltage (V)
1.2
Output Voltage (V)
IOUT = 10 mA
IOUT = 150 mA
6.5
1.195
1.19
1.185
6.495
6.49
6.485
6.48
6.475
6.47
TPS70912
1.18
−50 −35 −20 −5
TPS70965
6.465
−50 −35 −20 −5
10 25 40 55 70 85 100 115 130
Junction Temperature (°C)
G007
Figure 6-7. VOUT vs Temperature
Figure 6-8. VOUT vs Temperature
1600
1600
TJ = −40°C
TJ = +25°C
TJ = +85°C
TJ = +125°C
1200
1000
800
600
400
TPS70965
IOUT = 150 mA
200
0
2.5
3.5
4.5
Input Voltage (V)
5.5
TJ = −40°C
TJ = +25°C
TJ = +85°C
TJ = +125°C
1400
Dropout Voltage (mV)
Dropout Voltage (mV)
1400
1200
1000
800
600
400
200
TPS70965
0
6.5
0
20
40
60
80
100
Output Current (mA)
G009
Figure 6-9. Dropout Voltage vs VIN and Temperature
120
140
160
G010
Figure 6-10. Dropout Voltage vs IOUT and Temperature
500
500
Current Limit (mA)
TJ = −40°C
TJ = +25°C
TJ = +85°C
TJ = +125°C
450
Current Limit (mA)
10 25 40 55 70 85 100 115 130
Junction Temperature (°C)
G008
400
350
300
TJ = −40°C
TJ = +25°C
TJ = +85°C
TJ = +125°C
450
400
350
250
TPS70933
TPS70912
200
3
3.5
4
4.5
5
5.5
Input Voltage (V)
6
6.5
7
300
5
G011
Figure 6-11. 1.2-V Current Limit vs VIN and Temperature
5.5
6
6.5
7
Input Voltage (V)
7.5
8
8.5
G012
Figure 6-12. 3.3-V Current Limit vs VIN and Temperature
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6.6 Typical Characteristics (continued)
over operating temperature range (TJ = –40°C to 125°C), IOUT = 10 mA, VEN = 2 V, COUT = 2.2 μF, and VIN = VOUT(typ) + 1 V
or 2.7 V (whichever is greater), unless otherwise noted; typical values are at TJ = 25°C
2
TJ = −40°C
TJ = +25°C
TJ = +85°C
TJ = +125°C
450
TPS70965
Ground Pin Current (µA)
Current Limit (mA)
500
400
350
1.8
1.5
1.2
1
TA = −40°C
TA = +25°C
TA = +85°C
0.8
TPS70912
300
8
8.5
9
9.5
10
10.5
Input Voltage (V)
11
11.5
0.5
12
2.5
Ground Pin Current (µA)
Ground Pin Current (µA)
2
1.75
1.5
1.25
1
TA = −40°C
TA = +25°C
TA = +85°C
TPS70933
EN = open
25
30
35
G014
0
5
10
15
20
Input Voltage (V)
25
30
TA = −40°C
TA = +25°C
TA = +85°C
500
400
300
200
100
TPS70912
0
35
0
20
40
G035
Figure 6-15. GND Current vs VIN and Temperature
60
80
100
Output Current (mA)
120
140
160
G015
Figure 6-16. GND Current vs IOUT and Temperature
100
0.4
TA = −40°C
TA = +25°C
TA = +85°C
0.3
80
PSRR (dB)
Ground Pin Current (µA)
15
20
Input Voltage (V)
600
0.75
0.2
0.1
60
40
VOUT = 2.8 V
VIN = 3.8 V
COUT = 2.2 µF
20
Shutdown Current
TPS70912
0
5
10
15
20
Input Voltage (V)
25
30
35
0
10
G016
Figure 6-17. Shutdown Current vs VIN and Temperature
8
10
Figure 6-14. GND Current vs VIN and Temperature
2.25
0
5
G013
Figure 6-13. 6.5-V Current Limit vs VIN and Temperature
0.5
0
100
1k
10k
100k
Frequency (Hz)
1M
10M
G017
Figure 6-18. Power-Supply Rejection Ratio vs Frequency
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6.6 Typical Characteristics (continued)
over operating temperature range (TJ = –40°C to 125°C), IOUT = 10 mA, VEN = 2 V, COUT = 2.2 μF, and VIN = VOUT(typ) + 1 V
or 2.7 V (whichever is greater), unless otherwise noted; typical values are at TJ = 25°C
7
140
VOUT = 2.8 V
130
5
Time (µs)
Voltage ( µV / Hz )
6
4
3
2
120
110
1
0
10
100
1k
Frequency (Hz)
10k
100k
TPS70912
100
−50 −35 −20 −5
G018
Figure 6-19. Noise
10 25 40 55 70
Temperature (°C)
85 100 115 130
G019
Figure 6-20. Start-Up Time vs Temperature
Channel 2
(200 mV / div)
Channel 2
(200 mV / div)
Channel 2 = VOUT
Channel 4 = IOUT
VIN = 2.7 V
Channel 2 = VOUT
Channel 4 = IOUT
VIN = 2.7 V
Channel 4
(50 mA / div)
Channel 4
(100 mA / div)
Time (100 ms / div)
Time (500 ms / div)
G020
G021
Figure 6-21. TPS70912 Load Transient
(0 mA to 50 mA)
Figure 6-22. TPS70912 Load Transient
(1 mA to 150 mA)
Channel 2
(200 mV / div)
Channel 2
(200 mV / div)
Channel 2 = VOUT
Channel 4 = IOUT
VIN = 2.7 V
Channel 2 = VOUT
Channel 4 = IOUT
VIN = 2.7 V
Channel 4
(100 mA / div)
Channel 4
(50 mA / div)
Time (100 ms / div)
Time (10 ms / div)
G023
G022
Figure 6-23. TPS70912 Load Transient
(50 mA to 0 mA)
Figure 6-24. TPS70912 Load Transient
(50 mA to 150 mA)
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6.6 Typical Characteristics (continued)
over operating temperature range (TJ = –40°C to 125°C), IOUT = 10 mA, VEN = 2 V, COUT = 2.2 μF, and VIN = VOUT(typ) + 1 V
or 2.7 V (whichever is greater), unless otherwise noted; typical values are at TJ = 25°C
Channel 2
(200 mV / div)
Channel 2
(200 mV / div)
Channel 2 = VOUT
Channel 4 = IOUT
VIN = 4.3 V
Channel 2 = VOUT
Channel 4 = IOUT
VIN = 4.3 V
Channel 4
(100 mA / div)
Channel 4
(50 mA / div)
Time (500 ms / div)
Time (100 ms / div)
G025
G024
Figure 6-26. TPS70933 Load Transient
(1 mA to 150 mA)
Figure 6-25. TPS70933 Load Transient
(0 mA to 50 mA)
Channel 2
(200 mV / div)
Channel 2
(200 mV / div)
Channel 2 = VOUT
Channel 4 = IOUT
VIN = 4.3 V
Channel 2 = VOUT
Channel 4 = IOUT
VIN = 4.3 V
Channel 4
(50 mA / div)
Channel 4
(50 mA / div)
Time (10 ms / div)
Time (500 ms / div)
G026
G027
Figure 6-27. TPS70933 Load Transient
(50 mA to 0 mA)
Figure 6-28. TPS70933 Load Transient
(50 mA to 150 mA)
Channel 2 = VOUT
Channel 4 = VIN
IOUT = 10 mA
Channel 2 = VOUT
Channel 4 = VIN
IOUT = 50 mA
Channel 2
(50 mV / div)
Channel 2
(50 mV / div)
Channel 4
(2 V / div)
Channel 4
(2 V / div)
Time (50 ms / div)
Time (50 ms / div)
G028
Figure 6-29. TPS70912 Line Transient
(2.7 V to 3.7 V)
10
G029
Figure 6-30. TPS70912 Line Transient
(2.7 V to 3.7 V)
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6.6 Typical Characteristics (continued)
over operating temperature range (TJ = –40°C to 125°C), IOUT = 10 mA, VEN = 2 V, COUT = 2.2 μF, and VIN = VOUT(typ) + 1 V
or 2.7 V (whichever is greater), unless otherwise noted; typical values are at TJ = 25°C
Channel 2 = VOUT
Channel 4 = VIN
IOUT = 10 mA
Channel 2 = VOUT
Channel 4 = VIN
IOUT = 50 mA
Channel 2
(50 mV / div)
Channel 2
(50 mV / div)
Channel 4
(2 V / div)
Channel 4
(2 V / div)
Time (50 ms / div)
Time (50 ms / div)
G030
G031
Figure 6-31. TPS70933 Line Transient
(4.3 V to 5.3 V)
Figure 6-32. TPS70933 Line Transient
(4.3 V to 5.3 V)
Channel 1 = EN
Channel 2 = VOUT
VIN = 4.3 V
COUT = 2.2 mF
TPS70933
Channel 2
(1 V / div)
Channel 2
(1 V / div)
Channel 1
(500 mV / div)
Channel 1
(1 V / div)
Time (50 ms / div)
Channel 1 = VIN
Channel 2 = VOUT
IOUT = 3 mA
TPS70933
Time (500 ms / div)
G032
G033
Figure 6-33. Power-Up With Enable
Figure 6-34. Power-Up and Power-Down Response
Channel 2
(1 V / div)
Channel 1
(1 V / div)
Channel 1 = VIN
Channel 2 = VOUT
IOUT = 150 mA
TPS70933
Time (500 ms / div)
G034
Figure 6-35. Power-Up and Power-Down Response
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7 Detailed Description
7.1 Overview
The TPS709 series of devices are ultra-low quiescent current, low-dropout (LDO) linear regulators. The TPS709
offers reverse current protection to block any discharge current from the output into the input. The TPS709 also
features current limit and thermal shutdown for reliable operation.
7.2 Functional Block Diagram
OUT
IN
Current
Limit
Thermal
Shutdown
EN
Bandgap
Logic
Device
GND
7.3 Feature Description
7.3.1 Internal Current Limit
The TPS709 internal current limit helps protect the regulator during fault conditions. During current limit, the
output sources a fixed amount of current that is largely independent of output voltage. In such a case, the output
voltage is not regulated, and can be measured as (VOUT = ILIMIT × RLOAD). The PMOS pass transistor dissipates
[(VIN – VOUT) × ILIMIT] until a thermal shutdown is triggered and the device turns off. When cool, the device is
turned on by the internal thermal shutdown circuit. If the fault condition continues, the device cycles between
current limit and thermal shutdown; see the Thermal Protection section for more details.
The TPS709 is characterized over the recommended operating output current range up to 150 mA. The internal
current limit begins to limit the output current at a minimum of 200 mA of output current. The TPS709 continues
to operate for output currents between 150 mA and 200 mA but some data sheet parameters may not be met.
7.3.2 Dropout Voltage
The TPS709 use a PMOS pass transistor to achieve low dropout voltage. When (VIN – VOUT) is less than
the dropout voltage (VDO), the PMOS pass device is in the linear region of operation and the input-to-output
resistance is the RDS(ON) of the PMOS pass element. VDO approximately scales with the output current because
the PMOS device functions like a resistor in dropout.
The ground pin current of many linear voltage regulators increases substantially when the device is operated in
dropout. This increase in ground pin current while operating in dropout can be several orders of magnitude larger
than when the device is not in dropout. The TPS709 employs a special control loop that limits the increase in
ground pin current while operating in dropout. This functionality allows for the most efficient operation while in
dropout conditions that can greatly increase battery run times.
12
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7.3.3 Undervoltage Lockout (UVLO)
The TPS709 uses an undervoltage lockout (UVLO) circuit to keep the output shut off until the internal circuitry
operates properly.
7.3.4 Reverse-Current Protection
The TPS709 has integrated reverse-current protection. Reverse-current protection prevents the flow of current
from the OUT pin to the IN pin when output voltage is higher than input voltage. The reverse-current protection
circuitry places the power path in high impedance when the output voltage is higher than the input voltage. This
setting reduces leakage current from the output to the input to 10 nA, typical. The reverse current protection is
always active regardless of the enable pin logic state or if the OUT pin voltage is greater than 1.8 V. Reverse
current can flow if the output voltage is less than 1.8 V and if input voltage is less than the output voltage.
If voltage is applied to the input pin, then the maximum voltage that can be applied to the OUT pin is the lower of
three times the nominal output voltage or 6.5 V. For example, if the 1.2-V output voltage version is used, then the
maximum reverse bias voltage that can be applied to the OUT pin is 3.6 V. If the 5.0-V output voltage version is
used, then the maximum reverse bias voltage that can be applied to the OUT pin is 6.5 V.
7.4 Device Functional Modes
The TPS709 has the following functional modes:
1. Enabled: When the enable pin (EN) goes above 0.9 V, the device is enabled. EN is pulled high by a 300-nA
current source; therefore, EN can be left floating to enable the device. Do not connect EN to VIN. The EN
pin is clamped by a 6.5-V Zener diode. Do not exceed the 7-V absolute maximum rating on the enable pin or
excessive current flowing into the Zener clamp will destroy the device.
2. Disabled: When EN goes below 0.4 V, the device is disabled. During this time, OUT is high impedance and
the current into IN (I(SHUTDOWN)) is typically 150 nA.
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8 Application and Implementation
Note
Information in the following applications sections is not part of the TI component specification,
and TI does not warrant its accuracy or completeness. TI’s customers are responsible for
determining suitability of components for their purposes, as well as validating and testing their design
implementation to confirm system functionality.
8.1 Application Information
The TPS709 is a series of devices that consume low quiescent current and deliver excellent line and load
transient performance. This performance, combined with low noise and very good PSRR with little (VIN – VOUT)
headroom, makes this device ideal for RF portable applications, current limit, and thermal protection. The
TPS709 is specified from –40°C to +125°C.
8.1.1 Input and Output Capacitor
The TPS709 devices are stable with output capacitors with an effective capacitance of 2.0 μF or greater for
output voltages below 1.5 V. For output voltages equal or greater than 1.5 V, the minimum effective capacitance
for stability is 1.5 µF. The maximum capacitance for stability is 47 µF. The equivalent series resistance (ESR) of
the output capacitor must be between 0 Ω and 0.2 Ω for stability.
The effective capacitance is the minimum capacitance value of a capacitor after taking into account variations
resulting from tolerances, temperature, and dc bias effects. X5R- and X7R-type ceramic capacitors are
recommended because these capacitors have minimal variation in value and ESR over temperature.
Although an input capacitor is not required for stability, good analog design practice is to connect a 0.1-µF to
2.2-µF capacitor from IN to GND. This capacitor counteracts reactive input sources and improves transient
response, input ripple, and PSRR. An input capacitor is necessary if line transients greater than 10 V in
magnitude are anticipated.
8.1.2 Transient Response
As with any regulator, increasing the output capacitor size reduces over- and undershoot magnitude, but
increases transient response duration.
8.2 Typical Application
VIN
IN
VOUT
OUT
1 mF
2.2 mF
GND
TPS70933
EN
NC
Figure 8-1. Wide Input, 3.3-V, Low-IQ Rail
8.2.1 Design Requirements
Table 8-1 summarizes the design requirements for Figure 8-1.
Table 8-1. Design Requirements for a Wide Input, 3.3-V, Low-IQ Rail Application
14
PARAMETER
DESIGN SPECIFICATION
VIN
5 V to 20 V
VOUT
3.3 V
I(IN) (no load)
< 5 μA
IOUT (max)
150 mA
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8.2.2 Detailed Design Procedure
Select a 2.2-µF, 10-V X7R output capacitor to satisfy the minimum output capacitance requirement with a 3.3-V
dc bias.
Select a 1.0-µF, 25-V X7R input capacitor to provide input noise filtering and eliminate high-frequency voltage
transients.
8.2.3 Application Curves
Channel 2
(200 mV / div)
Channel 1 = EN
Channel 2 = VOUT
VIN = 4.3 V
COUT = 2.2 mF
TPS70933
Channel 2
(1 V / div)
Channel 2 = VOUT
Channel 4 = IOUT
VIN = 4.3 V
Channel 1
(500 mV / div)
Channel 4
(50 mA / div)
Time (500 ms / div)
Time (50 ms / div)
G027
Figure 8-2. TPS70933 Load Transient
(50 mA to 150 mA)
G032
Figure 8-3. Power-Up With Enable
9 Power Supply Recommendations
This device is designed to operate with an input supply range of 2.7 V to 30 V. If the input supply is noisy,
additional input capacitors with low ESR can help improve output noise performance.
9.1 Power Dissipation
The ability to remove heat from the die is different for each package type, presenting different considerations in
the printed circuit board (PCB) layout. The PCB area around the device that is free of other components moves
the heat from the device to ambient air. Performance data for JEDEC low and high-K boards are given in the
Thermal Information table. Using heavier copper increases the effectiveness in removing heat from the device.
The addition of plated through-holes to heat-dissipating layers also improves the heat sink effectiveness.
Power dissipation depends on input voltage and load conditions. Power dissipation (PDISS) is equal to the
product of the output current and the voltage drop across the output pass element, as shown in Equation 1:
PDISS = (VIN – VOUT) × IOUT
(1)
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10 Layout
10.1 Layout Guidelines
Place input and output capacitors as close to the device pins as possible. To improve ac performance (such as
PSRR, output noise, and transient response), TI recommends that the board be designed with separate ground
planes for VIN and VOUT, with the ground plane connected only at the GND pin of the device. In addition, the
ground connection for the output capacitor must be connected directly to the device GND pin.
10.1.1 Thermal Protection
Thermal protection disables the output when the junction temperature rises to approximately 165°C, allowing
the device to cool. When the junction temperature cools to approximately 145°C, the output circuitry is again
enabled. Depending on power dissipation, thermal resistance, and ambient temperature, the thermal protection
circuit can cycle on and off. This cycling limits the dissipation of the regulator, protecting it from damage as a
result of overheating.
Any tendency to activate the thermal protection circuit indicates excessive power dissipation or an inadequate
heat sink. For reliable operation, limit junction temperature to 125°C, maximum. To estimate the margin of safety
in a complete design (including heat sink), increase the ambient temperature until the thermal protection is
triggered; use worst-case loads and signal conditions. For good reliability, thermal protection must trigger at least
35°C above the maximum expected ambient condition of the particular application. This configuration produces
a worst-case junction temperature of 125°C at the highest expected ambient temperature and worst-case load.
The TPS709 internal protection circuitry is designed to protect against overload conditions. This circuitry is not
intended to replace proper heat sinking. Continuously running the TPS709 into thermal shutdown degrades
device reliability.
10.2 Layout Example
VOUT
VIN
1
CIN
5
COUT
2
3
4
GND PLANE
Represents via used for
application specific connections
Figure 10-1. Layout Example for DBV Package
16
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11 Device and Documentation Support
11.1 Device Support
11.1.1 Development Support
11.1.1.1 Evaluation Modules
An evaluation module (EVM) is available to assist in the initial circuit performance evaluation using the
TPS709xx. The TPS70933EVM-110 evaluation module (and related user guide) can be requested at the Texas
Instruments website through the product folders or purchased directly from the TI eStore.
11.1.1.2 Spice Models
Computer simulation of circuit performance using SPICE is often useful when analyzing the performance of
analog circuits and systems. A SPICE model for the TPS709 is available through the product folders under
Simulation Models.
11.1.2 Device Nomenclature
Table 11-1. Device Nomenclature(1)
(1)
PRODUCT
VOUT
TPS709xx(x) yyy z
or
TPS709xx(x) yyy zM3
XX(X) is the nominal output voltage. For output voltages with a resolution of 100 mV, two
digits are used in the ordering number; otherwise, three digits are used (for example, 28 = 2.8
V; 125 = 1.25 V).
YYY is the package designator.
Z is the tape and reel quantity (R = 3000, T = 250).
M3 suffix device has same electrical specs as other devices and shares same design.
For the most current package and ordering information see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
11.2 Documentation Support
11.2.1 Related Documentation
For related documentation see the following:
Texas Instruments, TPS70933EVM-110 Evaluation Module user guide
11.3 Support Resources
TI E2E™ support forums are an engineer's go-to source for fast, verified answers and design help — straight
from the experts. Search existing answers or ask your own question to get the quick design help you need.
Linked content is provided "AS IS" by the respective contributors. They do not constitute TI specifications and do
not necessarily reflect TI's views; see TI's Terms of Use.
11.4 Trademarks
TI E2E™ is a trademark of Texas Instruments.
All trademarks are the property of their respective owners.
11.5 Electrostatic Discharge Caution
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled
with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may
be more susceptible to damage because very small parametric changes could cause the device not to meet its published
specifications.
11.6 Glossary
TI Glossary
This glossary lists and explains terms, acronyms, and definitions.
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12 Mechanical, Packaging, and Orderable Information
The following pages include mechanical, packaging, and orderable information. This information is the most
current data available for the designated devices. This data is subject to change without notice and revision of
this document. For browser-based versions of this data sheet, refer to the left-hand navigation.
18
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PACKAGE OPTION ADDENDUM
www.ti.com
6-Dec-2022
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
Samples
(4/5)
(6)
TPS70912DBVR
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SCX
Samples
TPS70912DBVT
ACTIVE
SOT-23
DBV
5
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SCX
Samples
TPS70912DRVR
ACTIVE
WSON
DRV
6
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SCX
Samples
TPS70912DRVT
ACTIVE
WSON
DRV
6
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SCX
Samples
TPS709135DBVR
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SCY
Samples
TPS709135DBVT
ACTIVE
SOT-23
DBV
5
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SCY
Samples
TPS70915DBVR
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SIM
Samples
TPS70915DBVT
ACTIVE
SOT-23
DBV
5
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SIM
Samples
TPS70915DRVR
ACTIVE
WSON
DRV
6
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SIM
Samples
TPS70915DRVT
ACTIVE
WSON
DRV
6
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SIM
Samples
TPS70916DBVR
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SCZ
Samples
TPS70916DBVT
ACTIVE
SOT-23
DBV
5
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SCZ
Samples
TPS70918DBVR
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SDA
Samples
TPS70918DBVT
ACTIVE
SOT-23
DBV
5
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SDA
Samples
TPS70918DRVR
ACTIVE
WSON
DRV
6
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SDA
Samples
TPS70918DRVRM3
ACTIVE
WSON
DRV
6
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SDA
Samples
TPS70918DRVT
ACTIVE
WSON
DRV
6
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SDA
Samples
TPS70919DBVR
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU | SN
Level-1-260C-UNLIM
-40 to 125
SDB
Samples
TPS70919DBVT
ACTIVE
SOT-23
DBV
5
250
RoHS & Green
NIPDAU | SN
Level-1-260C-UNLIM
-40 to 125
SDB
Samples
TPS70925DBVR
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SDC
Samples
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
Orderable Device
6-Dec-2022
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
Samples
(4/5)
(6)
TPS70925DBVT
ACTIVE
SOT-23
DBV
5
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SDC
Samples
TPS70925DRVR
ACTIVE
WSON
DRV
6
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SDC
Samples
TPS70925DRVT
ACTIVE
WSON
DRV
6
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SDC
Samples
TPS70927DBVR
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SDD
Samples
TPS70927DBVT
ACTIVE
SOT-23
DBV
5
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SDD
Samples
TPS70928DBVR
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SDE
Samples
TPS70928DBVT
ACTIVE
SOT-23
DBV
5
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SDE
Samples
TPS70930DBVR
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU | SN
Level-1-260C-UNLIM
-40 to 125
SDF
Samples
TPS70930DBVT
ACTIVE
SOT-23
DBV
5
250
RoHS & Green
NIPDAU | SN
Level-1-260C-UNLIM
-40 to 125
SDF
Samples
TPS70930DRVR
ACTIVE
WSON
DRV
6
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SDF
Samples
TPS70930DRVT
ACTIVE
WSON
DRV
6
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SDF
Samples
TPS70933DBVR
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU | SN
Level-1-260C-UNLIM
-40 to 125
SDG
Samples
TPS70933DBVT
ACTIVE
SOT-23
DBV
5
250
RoHS & Green
NIPDAU | SN
Level-1-260C-UNLIM
-40 to 125
SDG
Samples
TPS70933DRVR
ACTIVE
WSON
DRV
6
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SDG
Samples
TPS70933DRVRM3
ACTIVE
WSON
DRV
6
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SDG
Samples
TPS70933DRVT
ACTIVE
WSON
DRV
6
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SDG
Samples
TPS70936DBVR
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU | SN
Level-1-260C-UNLIM
-40 to 125
SEJ
Samples
TPS70936DBVT
ACTIVE
SOT-23
DBV
5
250
RoHS & Green
NIPDAU | SN
Level-1-260C-UNLIM
-40 to 125
SEJ
Samples
TPS70936DRVR
ACTIVE
WSON
DRV
6
3000
RoHS & Green
NIPDAU
Level-2-260C-1 YEAR
-40 to 125
1FV
Samples
TPS70938DBVR
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SIC
Samples
TPS70938DBVT
ACTIVE
SOT-23
DBV
5
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SIC
Samples
Addendum-Page 2
PACKAGE OPTION ADDENDUM
www.ti.com
Orderable Device
6-Dec-2022
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
Samples
(4/5)
(6)
TPS70939DBVR
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SID
Samples
TPS70939DBVT
ACTIVE
SOT-23
DBV
5
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SID
Samples
TPS70950DBVR
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SDH
Samples
TPS70950DBVT
ACTIVE
SOT-23
DBV
5
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SDH
Samples
TPS70950DRVR
ACTIVE
WSON
DRV
6
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SDH
Samples
TPS70950DRVRM3
ACTIVE
WSON
DRV
6
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SDH
Samples
TPS70950DRVT
ACTIVE
WSON
DRV
6
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SDH
Samples
TPS70960DBVR
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SIT
Samples
TPS70960DBVT
ACTIVE
SOT-23
DBV
5
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
SIT
Samples
TPS709A30DBVR
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
11RF
Samples
TPS709A30DBVT
ACTIVE
SOT-23
DBV
5
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
11RF
Samples
TPS709A33DBVR
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
11SF
Samples
TPS709A33DBVT
ACTIVE
SOT-23
DBV
5
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
11SF
Samples
TPS709B33DBVR
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
13C7
Samples
TPS709B33DBVT
ACTIVE
SOT-23
DBV
5
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
13C7
Samples
TPS709B345DBVR
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
1XSW
Samples
TPS709B50DBVR
ACTIVE
SOT-23
DBV
5
3000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
13D7
Samples
TPS709B50DBVT
ACTIVE
SOT-23
DBV
5
250
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
13D7
Samples
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
Addendum-Page 3
PACKAGE OPTION ADDENDUM
www.ti.com
6-Dec-2022
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of
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