Obsolete Devices: TPS76501, TPS76525, TPS76528
TPS76515, TPS76518, TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236 – AUGUST 1999
D
D
D
D
D
D
D
D
D PACKAGE
(TOP VIEW)
150-mA Low-Dropout Voltage Regulator
Available in 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V,
3.0-V, 3.3-V, 5.0-V Fixed Output and
Adjustable Versions
Dropout Voltage to 85 mV (Typ) at 150 mA
(TPS76550)
Ultra-Low 35-µA Typical Quiescent Current
3% Tolerance Over Specified Conditions for
Fixed-Output Versions
Open Drain Power Good
8-Pin SOIC Package
Thermal Shutdown Protection
NC/FB
PG
GND
EN
1
8
2
7
3
6
4
5
OUT
OUT
IN
IN
description
This device is designed to have an ultra-low quiescent current and be stable with a 4.7-µF capacitor. This
combination provides high performance at a reasonable cost.
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 85 mV
at an output current of 150 mA for the TPS76550) and is directly proportional to the output current. Additionally,
since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent
of output loading (typically 35 µA over the full range of output current, 0 mA to 150 mA). These two key
specifications yield a significant improvement in operating life for battery-powered systems. This LDO family
also features a sleep mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the
quiescent current to less than 1 µA (typ).
TPS76533
TPS76533
DROPOUT VOLTAGE
vs
FREE-AIR TEMPERATURE
GROUND CURRENT
vs
LOAD CURRENT
0
1010
35.0
VO = 3.3 V
TA = 25°C
34.9
I GND – Ground Current – µ A
V DO – Output Voltage – V
VI = 3.2 V
IO = 150 mA
10–1
IO = 50 mA
IO = 10 mA
10–2
34.8
34.7
34.6
34.5
34.4
34.3
34.2
34.1
10–31
–50
34.0
–25
0
25
50
75
100
125
150
0
TA – Free-Air Temperature – °C
25
50
75
100
125
150
IL – Load Current – mA
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright 1999, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
Obsolete Devices: TPS76501, TPS76525, TPS76528
TPS76515, TPS76518, TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236 – AUGUST 1999
description (continued)
Power good (PG) is an active high output, which can be used to implement a power-on reset or a low-battery
indicator.
The TPS765xx is offered in 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V, 3.0-V, 3.3-V and 5.0-V fixed-voltage versions and
in an adjustable version (programmable over the range of 1.25 V to 5.5 V). Output voltage tolerance is specified
as a maximum of 3% over line, load, and temperature ranges. The TPS765xx family is available in 8 pin SOIC
package.
AVAILABLE OPTIONS
TJ
OUTPUT VOLTAGE
(V)
PACKAGED DEVICES
TYP
SOIC
(D)
5.0
TPS76550D
3.3
TPS76533D
3.0
TPS76530D
2.8
TPS76528D
2.7
TPS76527D
2.5
TPS76525D
1.8
TPS76518D
1.5
TPS76515D
Adjustable
1.25 V to 5.5 V
TPS76501D
– 40°C
40 C to 125°C
125 C
The TPS76501 is programmable using an external resistor divider (see application
information). The D package is available taped and reeled. Add an R suffix to the
device type (e.g., TPS76501DR).
TPS765xx
VI
5
IN
PG
6
NC/FB
IN
OUT
0.1 µF
4
EN
OUT
2
PG
1
7
VO
8
+
GND
3
CO†
4.7 µF
300 mΩ
† See application information section for capacitor selection details.
Figure 1. Typical Application Configuration for Fixed Output Options
2
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
Obsolete Devices: TPS76501, TPS76525, TPS76528
TPS76515, TPS76518, TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236 – AUGUST 1999
functional block diagram—adjustable version
IN
EN
PG
_
+
OUT
+
_
R1
Vref = 1.224 V
FB/NC
R2
GND
External to the device
functional block diagram—fixed-voltage version
IN
EN
PG
_
+
OUT
+
_
R1
Vref = 1.224 V
R2
GND
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
3
Obsolete Devices: TPS76501, TPS76525, TPS76528
TPS76515, TPS76518, TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236 – AUGUST 1999
Terminal Functions – SOIC Package
TERMINAL
NAME
NO.
I/O
DESCRIPTION
EN
4
I
Enable input
FB/NC
1
I
Feedback input voltage for adjustable device (no connect for fixed options)
GND
3
IN
5
IN
OUT
Regulator ground
I
Input voltage
6
I
Input voltage
7
O
Regulated output voltage
OUT
8
O
Regulated output voltage
PG
2
O
PG output
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)Ĕ
Input voltage range‡, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.3 V to 13.5 V
Voltage range at EN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 16.5 V
Maximum PG voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.5 V
Peak output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally limited
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See dissipation rating tables
Output voltage, VO (OUT, FB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
Operating virtual junction temperature range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 40°C to 125°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C
ESD rating, HBM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 kV
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
‡ All voltage values are with respect to network terminal ground.
DISSIPATION RATING TABLE 1 – FREE-AIR TEMPERATURES
PACKAGE
D
AIR FLOW
(CFM)
TA < 25°C
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
TA = 85°C
POWER RATING
0
568 mW
5.68 mW/°C
312 mW
227 mW
250
904 mW
9.04 mW/°C
497 mW
361 mW
recommended operating conditions
MIN
MAX
Input voltage, VIk
2.7
10
Output voltage range, VO
1.2
5.5
V
0
150
mA
– 40
125
°C
Output current, IO (Note 1)
Operating virtual junction temperature, TJ (Note 1)
UNIT
V
k To calculate the minimum input voltage for your maximum output current, use the following equation: VI(min) = VO(max) + VDO(max load).
NOTE 1: Continuous current and operating junction temperature are limited by internal protection circuitry, but it is not recommended that the
device operate under conditions beyond those specified in this table for extended periods of time.
4
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
Obsolete Devices: TPS76501, TPS76525, TPS76528
TPS76515, TPS76518, TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236 – AUGUST 1999
electrical characteristics over recommended operating free-air temperature
Vi = VO(typ) + 1 V, IO = 10 µA, EN = 0 V, CO = 4.7 µF (unless otherwise noted)
PARAMETER
TEST CONDITIONS
TPS76501
Output voltage
(10 µA to 150 mA load)
(see Note 2)
5.5 V ≥ VO ≥ 1.25 V,
5.5 V ≥ VO ≥ 1.25 V,
TJ = 25°C
TJ = –40°C to 125°C
TPS76515
TJ = 25°C,
TJ = –40°C to 125°C,
2.7 V < VIN < 10 V
TPS76518
TJ = 25°C,
TJ = –40°C to 125°C,
2.8 V < VIN < 10 V
TPS76525
TJ = 25°C,
TJ = –40°C to 125°C,
3.5 V < VIN < 10 V
TPS76527
TJ = 25°C,
TJ = –40°C to 125°C,
TPS76528
TJ = 25°C,
TJ = –40°C to 125°C,
3.8 V < VIN < 10 V
TPS76530
TJ = 25°C,
TJ = –40°C to 125°C,
4.0 V < VIN < 10 V
TPS76533
TJ = 25°C,
TJ = –40°C to 125°C,
4.3 V < VIN < 10 V
TPS76550
TJ = 25°C,
TJ = –40°C to 125°C,
2.7 V < VIN < 10 V
2.8 V < VIN < 10 V
MIN
0.97VO
1.03VO
1.455
1.545
1.8
1.746
1.854
2.5
3.7 V < VIN < 10 V
2.619
2.575
2.7
2.781
2.884
3.0
2.910
3.090
3.3
4.3 V < VIN < 10 V
6.0 V < VIN < 10 V
3.201
6.0 V < VIN < 10 V
4.850
3.399
5.0
5.150
10 µA < IO < 150 mA, TJ = 25°C
IO = 150 mA,
TJ = –40°C to 125°C
Output voltage line regulation (∆VO/VO)
(see Notes 2 and 3)
VO + 1 V < VI ≤ 10 V, TJ = 25°C
0.01
Load regulation
IO = 10 µA to 150 mA
BW = 300 Hz to 50 kHz,
CO = 4.7 µF,
TJ = 25°C
0.3%
Output current Limit
35
50
VO = 0 V
0.8
Standby current
FB input current
TPS76501
TJ = 25°C,
2.7 V < VI < 10 V
EN = VI,
TJ = –40°C to 125°C
2.7 V < VI < 10 V
PG
1
µA
2
Minimum input voltage for valid PG
Trip threshold voltage
VO decreasing
Hysteresis voltage
Measured at VO
Output low voltage
VI = 2.7 V,
Leakage current
V(PG) = 5 V
V
63
V
98
0.5
0.15
EN = 0 V
–1
EN = VI
–1
0
V
dB
1.1
92
IO(PG) = 1mA
µA
nA
0.8
CO = 4.7 µF,
TJ = 25°C
A
°C
2.0
f = 1 kHz,
IO = 10 µA,
IO(PG) = 300µA
Input current (EN)
1.2
150
Low level enable input voltage
Power supply ripple rejection (see Note 2)
µVrms
10
FB = 1.5 V
High level enable input voltage
µA
%/V
200
Thermal shutdown junction temperature
EN = VI,
V
2.8
2.716
Quiescent current ((GND current))
EN = 0V, (see Note 2)
Output noise voltage
UNIT
1.5
2.425
4.0 V < VIN < 10 V
MAX
VO
3.5 V < VIN < 10 V
3.7 V < VIN < 10 V
3.8 V < VIN < 10 V
TYP
range,
%VO
%VO
0.4
V
1
µA
1
1
µA
NOTE: 2. Minimum IN operating voltage is 2.7 V or VO(typ) + 1 V, whichever is greater. Maximum IN voltage 10 V.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
5
Obsolete Devices: TPS76501, TPS76525, TPS76528
TPS76515, TPS76518, TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236 – AUGUST 1999
electrical characteristics over recommended operating free-air temperature
Vi = VO(typ) + 1 V, IO = 10 µA, EN = 0 V, CO = 4.7 µF (unless otherwise noted) (continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
TPS76528
IO = 150 mA,
IO = 150 mA,
TJ = 25°C
TJ = –40°C to 125°C
190
TPS76530
IO = 150 mA,
IO = 150 mA,
TJ = 25°C
TJ = –40°C to 125°C
160
TPS76533
IO = 150 mA,
IO = 150 mA,
TJ = 25°C
TJ = –40°C to 125°C
140
TPS76550
IO = 150 mA,
IO = 150 mA,
TJ = 25°C
TJ = –40°C to 125°C
85
Dropout voltage
g
(See Note 4)
NOTES: 3. If VO ≤ 1.8 V then Vimin = 2.7 V, Vimax = 10 V:
Line Reg. (mV)
+ ǒ%ńVǓ
V
O
If VO ≥ 2.5 V then Vimin = VO + 1 V, Vimax = 10 V:
Line Reg. (mV)
+ ǒ%ńVǓ
V
O
ǒ
V
ǒ
* 2.7 V
imax
100
V
imax
*
ǒ
V
O
Ǔ
MAX
UNIT
330
280
mV
240
150
1000
)1 V
100
range,
ǓǓ
1000
4. IN voltage equals VO(Typ) – 100 mV; TPS76501 output voltage set to 3.3 V nominal with external resistor divider. TPS76515,
TPS76518, TPS76525, and TPS76527 dropout voltage limited by input voltage range limitations (i.e., TPS76530 input voltage
needs to drop to 2.9 V for purpose of this test).
Table of Graphs
FIGURE
vs Load current
2, 3
vs Free-air temperature
4, 5
vs Load current
6, 7
vs Free-air temperature
8, 9
Power supply ripple rejection
vs Frequency
10
Output spectral noise density
vs Frequency
11
Output impedance
vs Frequency
12
Dropout voltage
vs Free-air temperature
Output voltage
Ground current
6
13, 14
Line transient response
15, 17
Load transient response
16, 18
Output voltage
vs Time
Dropout voltage
vs Input voltage
Equivalent series resistance (ESR)
vs Output current
21 – 24
Equivalent series resistance (ESR)
vs Added ceramic capacitance
25, 26
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
19
20
Obsolete Devices: TPS76501, TPS76525, TPS76528
TPS76515, TPS76518, TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236 – AUGUST 1999
TYPICAL CHARACTERISTICS
TPS76533
TPS76515
OUTPUT VOLTAGE
vs
LOAD CURRENT
OUTPUT VOLTAGE
vs
LOAD CURRENT
3.304
1.494
VI = 4.3 V
TA = 25°C
1.493
VO – Output Voltage – V
3.302
VO – Output Voltage – V
VI = 2.7 V
TA = 25°C
3.300
3.298
3.296
3.294
1.492
1.491
1.490
1.489
1.488
3.292
1.487
0
25
50
75
100
125
150
0
25
50
IL – Load Current – mA
75
100
125
150
IL – Load Current – mA
Figure 2
Figure 3
TPS76533
TPS76515
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
3.310
1.505
VI = 4.3 V
3.305
VI = 2.7 V
IO = 10 µA
IO = 10 µA
1.500
VO – Output Voltage – V
VO – Output Voltage – V
3.300
3.295
IO = 150 mA
3.290
3.285
3.280
IO = 150 mA
1.495
1.490
1.485
3.275
1.480
3.270
3.265
–50
–25
0
25
50
75 100 125
TA – Free-Air Temperature – °C
150
1.475
–50
–25
Figure 4
0
25
50
75
100 125
TA – Free-Air Temperature – °C
150
Figure 5
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
7
Obsolete Devices: TPS76501, TPS76525, TPS76528
TPS76515, TPS76518, TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236 – AUGUST 1999
TYPICAL CHARACTERISTICS
TPS76533
TPS76515
GROUND CURRENT
vs
LOAD CURRENT
GROUND CURRENT
vs
LOAD CURRENT
35.0
34.0
VO = 3.3 V
TA = 25°C
VO = 1.5 V
TA = 25°C
33.9
34.8
I GND – Ground Current – µ A
I GND – Ground Current – µ A
34.9
34.7
34.6
34.5
34.4
34.3
34.2
34.1
33.8
33.7
33.6
33.5
33.4
33.3
33.2
33.1
34.0
33.0
0
25
50
75
100
125
150
0
25
50
IL – Load Current – mA
TPS76533
TPS76515
GROUND CURRENT
vs
FREE-AIR TEMPERATURE
55
50
50
45
40
35
30
25
20
VO = 3.3 V
IO = 150 mA
0
40
35
30
25
20
50
150
45
100
150
VO = 1.5 V
IO = 150 mA
15
–50
TA – Free-Air Temperature – °C
0
50
Figure 9
POST OFFICE BOX 655303
100
TA – Free-Air Temperature – °C
Figure 8
8
125
GROUND CURRENT
vs
FREE-AIR TEMPERATURE
55
10
–50
100
Figure 7
I GND – Ground Current – µ A
I GND – Ground Current – µ A
Figure 6
15
75
IL – Load Current – mA
• DALLAS, TEXAS 75265
150
Obsolete Devices: TPS76501, TPS76525, TPS76528
TPS76515, TPS76518, TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236 – AUGUST 1999
TYPICAL CHARACTERISTICS
TPS76533
TPS76533
POWER SUPPLY RIPPLE REJECTION
vs
FREQUENCY
OUTPUT SPECTRAL NOISE DENSITY
vs
FREQUENCY
101
Output Spectral Noise Density – µV Hz
VI = 4.3 V
CO = 10 µF
IO = 150 mA
TA = 25°C
60
50
40
30
20
10
10.00
10
IO = 150 mA
IO = 1 mA
100
10–1
VI = 4.3 V
CO = 10 µF
TA = 25°C
10–2
100.00
100 1000.0010000.00
1k
10k 100000.00
100k 1000000.00
1M 10000000.0
10M
1k
100
f – Frequency – Hz
10k
100k
f – Frequency – Hz
Figure 10
Figure 11
TPS76533
OUTPUT IMPEDANCE
vs
FREQUENCY
101
VI = 4.3 V
CO = 10 µF
TA = 25°C
Zo – Output Impedance – Ω
PSRR – Power Supply Ripple Rejection – dB
70
100
IO = 1 mA
10–1
IO = 150 mA
10–2
10
100
1k
10k
100k
1M
f – Frequency – Hz
Figure 12
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
9
Obsolete Devices: TPS76501, TPS76525, TPS76528
TPS76515, TPS76518, TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236 – AUGUST 1999
TYPICAL CHARACTERISTICS
TPS76550
TPS76533
DROPOUT VOLTAGE
vs
FREE-AIR TEMPERATURE
DROPOUT VOLTAGE
vs
FREE-AIR TEMPERATURE
100
100
VI = 3.2 V
V DO – Output Voltage – V
V DO – Output Voltage – V
VI = 4.9 V
CO = 4.7 µF
IO = 150 mA
10–1
IO = 50 mA
10–2
IO = 150 mA
10–1
IO = 50 mA
IO = 10 mA
10–2
IO = 10 mA
10–3
10–3
–50
–25
0
25
50
75
100
125
150
–50
–25
TA – Free-Air Temperature – °C
0
25
50
75
100
125
150
TA – Free-Air Temperature – °C
Figure 13
Figure 14
TPS76515
TPS76515
LINE TRANSIENT RESPONSE
LOAD TRANSIENT RESPONSE
∆ VO – Change in
Output Voltage – mV
∆ VO – Change in
Output Voltage – mV
400
CL = 4.7 µF
TA = 25°C
100
50
0
I O – Output Current – mA
VI – Input Voltage – V
–50
3.7
2.7
0
100 200 300 400 500 600 700 800 900 1000
t – Time – µs
CL = 4.7 µF
TA = 25°C
200
0
–200
–400
150
0
0
100 200 300 400 500 600 700 800 900 1000
t – Time – µs
Figure 16
Figure 15
10
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
Obsolete Devices: TPS76501, TPS76525, TPS76528
TPS76515, TPS76518, TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236 – AUGUST 1999
TYPICAL CHARACTERISTICS
TPS76533
TPS76533
LINE TRANSIENT RESPONSE
LOAD TRANSIENT RESPONSE
∆ VO – Change in
Output Voltage – mV
∆ VO – Change in
Output Voltage – mV
400
CL = 4.7 µF
TA = 25°C
100
50
0
I O – Output Current – mA
VI – Input Voltage – V
–50
–100
5.3
4.3
0
CL = 4.7 µF
TA = 25°C
200
0
–200
150
0
0
100 200 300 400 500 600 700 800 900 1000
t – Time – µs
100 200 300 400 500 600 700 800 900 1000
t – Time – µs
Figure 18
Figure 17
TPS76533
TPS76501
OUTPUT VOLTAGE
vs
TIME (AT STARTUP)
DROPOUT VOLTAGE
vs
INPUT VOLTAGE
0.30
IO = 150 mA
3
0.25
2
V DO – Output Voltage – V
VO– Output Voltage – V
4
1
Enable Pulse – V
0
4.3
0.20
TA = 125°C
0.15
TA = 25°C
0.10
TA = –40°C
0.05
0
0
100 200 300 400 500 600 700 800 900 1000
t – Time – µs
0.00
2.5
3.0
3.5
4.0
4.5
5.0
VI – Input Voltage – V
Figure 19
Figure 20
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
11
Obsolete Devices: TPS76501, TPS76525, TPS76528
TPS76515, TPS76518, TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236 – AUGUST 1999
TYPICAL CHARACTERISTICS
TYPICAL REGION OF STABILITY
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCE†
vs
OUTPUT CURRENT
EQUIVALENT SERIES RESISTANCE†
vs
OUTPUT CURRENT
100.00
102
Region of Instability
Maximum ESR
ESR – Equivalent Series Resistance – Ω
ESR – Equivalent Series Resistance – Ω
100.00
102
10.00
101
Region of Stability
VI = 4.3 V
CO = 4.7 µF
VO = 3.3 V
TA = 25°C
1.00
100
Minimum ESR
–1
0.10
10
Region of Instability
Maximum ESR
Region of Instability
10.00
101
Region of Stability
0
1.00
10
VI = 4.3 V
CO = 4.7 µF
VO = 3.3 V
TA = 125°C
–1
0.10
10
Minimum ESR
Region of Instability
–2
10
0.01
–2
0.01
10
0
25
50
75
100
125
150
0
25
50
IO – Output Current – mA
Figure 21
125
TYPICAL REGION OF STABILITY
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCE†
vs
OUTPUT CURRENT
EQUIVALENT SERIES RESISTANCE†
vs
OUTPUT CURRENT
150
2
100
10
ESR – Equivalent Series Resistance – Ω
Maximum ESR
ESR – Equivalent Series Resistance – Ω
100
Figure 22
100.00
102
Region of Instability
10.00
101
0
1.00
10
VI = 4.3 V
CO = 10 µF
VO = 3.3 V
TA = 25°C
–1
0.10
10
Region of Stability
Minimum ESR
Region of Instability
–2
0.01
10
75
IO – Output Current – mA
Maximum ESR
Region of Instability
101
Region of Stability
100
VI = 4.3 V
CO = 10 µF
VO = 3.3 V
TA = 125°C
10–1
Minimum ESR
Region of Instability
–2
10–2
10
0
25
50
75
100
125
150
0
IO – Output Current – mA
25
50
75
100
125
150
IO – Output Current – mA
Figure 23
Figure 24
† Equivalent series resistance (ESR) refers to the total series resistance, including the ESR of the capacitor, any series resistance added
externally, and PWB trace resistance to CO.
12
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
Obsolete Devices: TPS76501, TPS76525, TPS76528
TPS76515, TPS76518, TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236 – AUGUST 1999
TYPICAL CHARACTERISTICS
TYPICAL REGION OF STABILITY
TYPICAL REGION OF STABILITY
EQUIVALENT SERIES RESISTANCE†
vs
ADDED CERAMIC CAPACITANCE
EQUIVALENT SERIES RESISTANCE†
vs
ADDED CERAMIC CAPACITANCE
10.00
101
VI = 4.3 V
CO = 4.7 µF
VO = 3.3 V
TA = 25°C
ESR – Equivalent Series Resistance – Ω
ESR – Equivalent Series Resistance – Ω
101
10.00
IO = 150 mA
0
10
1.00
–1
100.10
Minimum ESR
Region of Instability
–2
100.01
VI = 4.3 V
VO = 3.3 V
CO = 10 µF
TA = 25°C
IO = 150 mA
0
1.00
10
–1
100.10
Minimum ESR
Region of Instability
–2
100.01
0
0.2
0.4
0.6
0.8
1.0
0
Added Ceramic Capacitance – µF
0.4
0.6
0.8
1.0
Added Ceramic Capacitance – µF
Figure 25
VI
0.2
Figure 26
To Load
IN
OUT
+
EN
CO
GND
RL
ESR
Figure 27. Test Circuit for Typical Regions of Stability (Figures 20 through 23) (Fixed Output Options)
† Equivalent series resistance (ESR) refers to the total series resistance, including the ESR of the capacitor, any series resistance added
externally, and PWB trace resistance to CO.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
13
Obsolete Devices: TPS76501, TPS76525, TPS76528
TPS76515, TPS76518, TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236 – AUGUST 1999
APPLICATION INFORMATION
The TPS765xx family includes eight fixed-output voltage regulators (1.5 V, 1.8 V, 2.5 V, 2.7 V, 2.8 V, 3.0 V,
3.3 V, and 5.0 V), and an adjustable regulator, the TPS76501 (adjustable from 1.25 V to 5.5 V).
device operation
The TPS765xx features very low quiescent current, which remains virtually constant even with varying loads.
Conventional LDO regulators use a pnp pass element, the base current of which is directly proportional to the
load current through the regulator (IB = IC/β). The TPS765xx uses a PMOS transistor to pass current; because
the gate of the PMOS is voltage driven, operating current is low and invariable over the full load range.
Another pitfall associated with the pnp-pass element is its tendency to saturate when the device goes into
dropout. The resulting drop in β forces an increase in IB to maintain the load. During power up, this translates
to large start-up currents. Systems with limited supply current may fail to start up. In battery-powered systems,
it means rapid battery discharge when the voltage decays below the minimum required for regulation. The
TPS765xx quiescent current remains low even when the regulator drops out, eliminating both problems.
The TPS765xx family also features a shutdown mode that places the output in the high-impedance state
(essentially equal to the feedback-divider resistance) and reduces quiescent current to 1 µA (typ). If the
shutdown feature is not used, EN should be tied to ground. Response to an enable transition is quick; regulated
output voltage is reestablished in typically 160 µs.
minimum load requirements
The TPS765xx family is stable even at zero load; no minimum load is required for operation.
FB - pin connection (adjustable version only)
The FB pin is an input pin to sense the output voltage and close the loop for the adjustable option . The output
voltage is sensed through a resistor divider network to close the loop as it is shown in Figure 29. Normally, this
connection should be as short as possible; however, the connection can be made near a critical circuit to
improve performance at that point. Internally, FB connects to a high-impedance wide-bandwidth amplifier and
noise pickup feeds through to the regulator output. Routing the FB connection to minimize/avoid noise pickup
is essential.
external capacitor requirements
An input capacitor is not usually required; however, a ceramic bypass capacitor (0.047 µF or larger) improves
load transient response and noise rejection if the TPS765xx is located more than a few inches from the power
supply. A higher-capacitance electrolytic capacitor may be necessary if large (hundreds of milliamps) load
transients with fast rise times are anticipated.
Like all low dropout regulators, the TPS765xx requires an output capacitor connected between OUT and GND
to stabilize the internal control loop. The minimum recommended capacitance value is 4.7 µF and the ESR
(equivalent series resistance) must be between 300-mΩ and 20-Ω. Capacitor values 4.7 µF or larger are
acceptable, provided the ESR is less than 20 Ω. Solid tantalum electrolytic, aluminum electrolytic, and multilayer
ceramic capacitors are all suitable, provided they meet the requirements described previously.
14
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
Obsolete Devices: TPS76501, TPS76525, TPS76528
TPS76515, TPS76518, TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236 – AUGUST 1999
APPLICATION INFORMATION
external capacitor requirements (continued)
TPS765xx
5
VI
IN
PG
6
NC/FB
IN
OUT
0.1 µF
4
EN
OUT
2
PG
1
250 kΩ
7
VO
8
+
GND
3
CO
4.7 µF
300 mΩ
Figure 28. Typical Application Circuit (Fixed Versions)
programming the TPS76501 adjustable LDO regulator
The output voltage of the TPS76501 adjustable regulator is programmed using an external resistor divider as
shown in Figure 29. The output voltage is calculated using:
V
O
ǒ) Ǔ
+ Vref
R1
R2
1
(1)
Where
Vref = 1.224 V typ (the internal reference voltage)
Resistors R1 and R2 should be chosen for approximately 7-µA divider current. Lower value resistors can be
used but offer no inherent advantage and waste more power. Higher values should be avoided as leakage
currents at FB increase the output voltage error. The recommended design procedure is to choose
R2 = 169 kΩ to set the divider current at 7 µA and then calculate R1 using:
R1
+
ǒ Ǔ
V
V
O
ref
*1
(2)
R2
OUTPUT VOLTAGE
PROGRAMMING GUIDE
TPS76501
VI
0.1 µF
IN
PG
250 kΩ
≥ 2.0 V
≤ 0.8 V
OUTPUT
VOLTAGE
PG
EN
VO
OUT
R1
FB / NC
GND
R2
CO
R1
R2
UNIT
2.5 V
174
169
kΩ
3.3 V
287
169
kΩ
3.6 V
324
169
kΩ
4.0 V
383
169
kΩ
5.0 V
523
169
kΩ
300 mΩ
Figure 29. TPS76501 Adjustable LDO Regulator Programming
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
15
Obsolete Devices: TPS76501, TPS76525, TPS76528
TPS76515, TPS76518, TPS76525, TPS76527
TPS76528, TPS76530, TPS76533, TPS76550, TPS76501
ULTRA-LOW QUIESCIENT CURRENT 150-mA LOW-DROPOUT VOLTAGE REGULATORS
SLVS236 – AUGUST 1999
APPLICATION INFORMATION
power-good indicator
The TPS765xx features a power-good (PG) output that can be used to monitor the status of the regulator. The
internal comparator monitors the output voltage: when the output drops to between 92% and 98% of its nominal
regulated value, the PG output transistor turns on, taking the signal low. The open-drain output requires a pullup
resistor. If not used, it can be left floating. PG can be used to drive power-on reset circuitry or used as a
low-battery indicator.
regulator protection
The TPS765xx PMOS-pass transistor has a built-in back diode that conducts reverse currents when the input
voltage drops below the output voltage (e.g., during power down). Current is conducted from the output to the
input and is not internally limited. When extended reverse voltage is anticipated, external limiting may be
appropriate.
The TPS765xx also features internal current limiting and thermal protection. During normal operation, the
TPS765xx limits output current to approximately 0.8 A. When current limiting engages, the output voltage scales
back linearly until the overcurrent condition ends. While current limiting is designed to prevent gross device
failure, care should be taken not to exceed the power dissipation ratings of the package. If the temperature of
the device exceeds 150°C(typ), thermal-protection circuitry shuts it down. Once the device has cooled below
130°C(typ), regulator operation resumes.
power dissipation and junction temperature
Specified regulator operation is assured to a junction temperature of 125°C; the maximum junction temperature
should be restricted to 125°C under normal operating conditions. This restriction limits the power dissipation
the regulator can handle in any given application. To ensure the junction temperature is within acceptable limits,
calculate the maximum allowable dissipation, PD(max), and the actual dissipation, PD, which must be less than
or equal to PD(max).
The maximum-power-dissipation limit is determined using the following equation:
P
T max * T
J
A
+
D(max)
R
qJA
Where
TJmax is the maximum allowable junction temperature
RθJA is the thermal resistance junction-to-ambient for the package, i.e., 176°C/W for the 8-terminal
SOIC.
TA is the ambient temperature.
ǒ
Ǔ
The regulator dissipation is calculated using:
P
D
+ VI * VO
I
O
Power dissipation resulting from quiescent current is negligible. Excessive power dissipation will trigger the
thermal protection circuit.
16
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
PACKAGE OPTION ADDENDUM
www.ti.com
14-Oct-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)
TPS62095RGTR
ACTIVE
VQFN
RGT
16
3000
RoHS & Green
NIPDAU
Level-2-260C-1 YEAR
-40 to 85
SMC
Samples
TPS62095RGTT
ACTIVE
VQFN
RGT
16
250
RoHS & Green
NIPDAU
Level-2-260C-1 YEAR
-40 to 85
SMC
Samples
TPS62406QDRCRQ1
ACTIVE
VSON
DRC
10
3000
RoHS & Green
NIPDAU
Level-3-260C-168 HR
-40 to 125
2406Q
Samples
TPS62407QDRCRQ1
ACTIVE
VSON
DRC
10
3000
RoHS & Green
NIPDAU
Level-3-260C-168 HR
-40 to 125
SHU
Samples
TPS62422QDRCRQ1
ACTIVE
VSON
DRC
10
3000
RoHS & Green
NIPDAUAG
Level-3-260C-168 HR
-40 to 125
2422Q
Samples
TPS62423QDRCRQ1
ACTIVE
VSON
DRC
10
3000
RoHS & Green
NIPDAUAG
Level-3-260C-168 HR
-40 to 125
2423Q
Samples
TPS62424QDRCRQ1
ACTIVE
VSON
DRC
10
3000
RoHS & Green
NIPDAUAG
Level-3-260C-168 HR
-40 to 125
2424Q
Samples
TPS76501D
ACTIVE
SOIC
D
8
75
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
76501
Samples
TPS76501DR
ACTIVE
SOIC
D
8
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
76501
Samples
TPS76515D
ACTIVE
SOIC
D
8
75
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
76515
Samples
TPS76518D
ACTIVE
SOIC
D
8
75
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
76518
Samples
TPS76518DR
ACTIVE
SOIC
D
8
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
76518
Samples
TPS76525D
ACTIVE
SOIC
D
8
75
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
76525
Samples
TPS76528D
ACTIVE
SOIC
D
8
75
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
76528
Samples
TPS76533D
ACTIVE
SOIC
D
8
75
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
76533
Samples
TPS76533DR
ACTIVE
SOIC
D
8
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
76533
Samples
TPS76550D
ACTIVE
SOIC
D
8
75
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
76550
Samples
TPS76550DR
ACTIVE
SOIC
D
8
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
76550
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.
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
14-Oct-2022
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.
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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