RT9069
36V, 2A IQ, Peak 200mA Low Dropout Voltage Linear
Regulator
General Description
Features
The RT9069 is a low-dropout (LDO) voltage regulators
with enable function offering the benefits of high input
2A Ground Current at no Load
±2% Output Accuracy
100mA Continuous Output Current
Zero Disable Current
Maximum Operating Input Voltage 36V
Dropout Voltage: 0.2V at 10mA/ VIN 5V
Support Fixed Output Voltage 2.5V, 3V, 3.3V, 5V,
9V, 12V
voltage, low-dropout voltage, low-power consumption,
and miniaturized packaging.
The features of low quiescent current as low as 2A
and zero disable current is ideal for powering the
battery equipment to a longer service life. The RT9069
Stable with Ceramic or Tantalum Capacitor
Current Limit Protection
is stable with the ceramic output capacitor over its wide
input range from 3.5V to 36V and the entire range of
Over-Temperature Protection
RoHS Compliant and Halogen Free
output load current.
Applications
Ordering Information
Portable, Battery Powered Equipments
Extra Low Voltage Microcontrollers
Notebook Computers
RT9069Package Type
SP : SOP-8 (Exposed Pad-Option 1)
B : SOT-23-5
X5 : SOT-89-5
QU : UDFN-6L 1.6x1.6 (U-type)
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
Lead Plating System
G : Green (Halogen Free and Pb Free)
Output Voltage
25 : 2.5V
30 : 3V
33 : 3.3V
50 : 5V
Note :
90: 9V
C0: 12V
Special Request: Any Voltage
Richtek products are :
RoHS compliant and compatible with the current
requirements of IPC/JEDEC J-STD-020.
Suitable
between 2.5V and 12V under
specific business agreement
for use in SnPb or Pb-free soldering processes.
Simplified Application Circuit
RT9069
EN
EN
VCC
Copyright © 2018 Richtek Technology Corporation. All rights reserved.
DS9069-09
November 2018
VOUT
VOUT
VCC
CIN
GND
COUT
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1
RT9069
Pin Configuration
(TOP VIEW)
NC
2
VOUT
3
NC
4
GND
8
EN
7
GND
6
NC
5
NC
9
EN
5
4
2
VCC
NC
5
4
3
1
2
3
VOUT
GND
EN
VCC
NC
VOUT
1
6
GND
VCC
VOUT
2
7
3
5
4
GND
NC
EN
VCC GND NC
SOP-8 (Exposed Pad)
SOT-23-5
SOT-89-5
UDFN-6L 1.6x1.6
Functional Pin Description
Pin No.
SOP-8
SOT-23-5 SOT-89-5
(Exposed Pad)
UDFN-6L
1.6x1.6
1
1
5
1
2, 4, 5, 6
3
4
2, 5
3
5
1
7,
9 (Exposed Pad)
2
8
4
Pin Function
VCC
Supply voltage input.
NC
No internal connection.
3
VOUT
Output of the regulator.
2
6,
7 (Exposed Pad)
GND
Ground. The exposed pad must be
soldered to a large PCB and connected
to GND for maximum thermal dissipation.
3
4
EN
Enable control input.
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Pin Name
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DS9069-09
November 2018
RT9069
Functional Block Diagram
VCC
VOUT
Current/Thermal
Sense
GND
R1
+
R2
Band gap
Reference
EN
Operation
Basic Operation
Enable
The RT9069 is a high input voltage linear regulator
The RT9069 delivers the output power when it is set to
designed especially for low external component
enable state. When it works in disable state, there is no
systems. The input voltage range is from 3.5V to 36V.
output power and the operation quiescent current is
The minimum required output capacitance for stable
zero.
operation is 1F effective capacitance after consideration
Current Limit Protection
of the temperature and voltage coefficient of the capacitor.
The RT9069 provides current limit function to prevent
Output Transistor
The RT9069 builds in a P-MOSFET output transistor
which provides a low switch-on resistance for low
dropout voltage applications.
Error Amplifier
The Error Amplifier compares the internal reference
voltage with the output feedback voltage from the
internal divider, and controls the Gate voltage of
P-MOSFET to support good line regulation and load
regulation at output voltage.
Copyright © 2018 Richtek Technology Corporation. All rights reserved.
DS9069-09
November 2018
the
device from
damages during
over-load
or
shorted-circuit conditions. This current is detected by
an internal sensing transistor.
Over-Temperature Protection
The over-temperature protection function turns off the
P-MOSFET when the junction temperature exceeds
150C (typ.) and the output current exceeds 4mA.
Once the junction temperature cools down by
approximately
20C,
the
regulator
automatically
resumes operation.
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RT9069
Absolute Maximum Ratings
(Note 1)
VCC, EN to GND ---------------------------------------------------------------------------------------------------- 0.3V to 40V
VOUT to VCC -------------------------------------------------------------------------------------------------------- 40V to 0.3V
VOUT to GND
RT9069-90/RT9069-C0 ------------------------------------------------------------------------------------------- 0.3V to 15V
RT9069-25/RT9069-30/RT9069-33/RT9069-50 ------------------------------------------------------------ 0.3V to 6V
Power Dissipation, PD @ TA = 25°C
SOP-8 (Exposed Pad) ---------------------------------------------------------------------------------------------- 3.26W
SOT-23-5 ------------------------------------------------------------------------------------------------------------- 0.45W
SOT-89-5 ------------------------------------------------------------------------------------------------------------- 0.87W
UDFN-6L 1.6x1.6 --------------------------------------------------------------------------------------------------- 2.15W
Package Thermal Resistance (Note 2)
SOP-8 (Exposed Pad), JA --------------------------------------------------------------------------------------- 30.6°C/W
SOP-8 (Exposed Pad), JC --------------------------------------------------------------------------------------- 3.4°C/W
SOT-23-5, JA -------------------------------------------------------------------------------------------------------- 218.1°C/W
SOT-23-5, JC -------------------------------------------------------------------------------------------------------- 28.5°C/W
SOT-89-5, JA -------------------------------------------------------------------------------------------------------- 113.9°C/W
SOT-89-5, JC ------------------------------------------------------------------------------------------------------- 6.9°C/W
UDFN-6L 1.6x1.6, JA --------------------------------------------------------------------------------------------- 46.5°C/W
UDFN-6L 1.6x1.6, JC --------------------------------------------------------------------------------------------- 18.6°C/W
Lead Temperature (Soldering, 10 sec.) -------------------------------------------------------------------------260C
Junction Temperature -----------------------------------------------------------------------------------------------150C
Storage Temperature Range ---------------------------------------------------------------------------------------65C to 150C
ESD Susceptibility (Note 3)
HBM (Human Body Model) ---------------------------------------------------------------------------------------- 2kV
Recommended Operating Conditions
(Note 4)
Supply Input Voltage --------------------------------------------------------------------------------------------------3.5V to 36V
Junction Temperature Range ---------------------------------------------------------------------------------------40C to 125C
Ambient Temperature Range----------------------------------------------------------------------------------------40C to 85C
Electrical Characteristics
(CIN = 1F, TA = 25C, for each LDO unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Supply Voltage
VCC
3.5
--
36
V
Output Voltage Range
VOUT
2.5
--
12
V
DC Output Accuracy
VOUT
ILOAD = 10mA
2
--
+2
%
Dropout Voltage
VDROP
ILOAD = 10mA, VCC > 5V
--
0.2
0.36
V
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DS9069-09
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RT9069
Parameter
Symbol
Test Conditions
ILOAD = 0mA, VOUT 5.5V
VCC Consumption Current
IQ
ILOAD = 0mA, VOUT > 5.5V,
Min
Typ
Max
Unit
--
2
3.5
A
--
3.5
5
A
VCC =15V
Shutdown Current
VEN = 0V
--
0.1
--
A
Shutdown Leakage Current
VEN = 0V, VOUT = 0V
--
0.1
--
A
VEN = 36V
--
0.1
--
A
ILOAD = 1mA,
VOUT +1 < VCC < 36V, VOUT 3.3V
--
0.04
0.5
ILOAD = 1mA,
VOUT +1 < VCC < 36V, VOUT 3.3V
--
0.04
0.6
EN Input Current
IEN
VLINE
Line Regulation
%
Load Regulation
VLOAD
0mA < ILOAD < 100mA
1
--
1
%
Output Current Limit
ILIM
VOUT = 0.5 x VOUT(normal)
200
350
--
mA
Enable Input
Voltage
Logic-High
VIH
--
--
1.6
Logic-Low
VIL
0.6
--
--
--
150
--
°C
--
20
--
°C
Thermal Shutdown Temperature
TSD
Thermal Shutdown Hysteresis
TSD
ILOAD = 30mA
V
Note 1. 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 in
the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions may affect
device reliability.
Note 2. JA is measured at TA = 25C on a high effective thermal conductivity four-layer test board per JEDEC 51-7.JC is
measured at the exposed pad of the package.
Note 3. Devices are ESD sensitive. Handling precaution is recommended.
Note 4. The device is not guaranteed to function outside its operating conditions.
Copyright © 2018 Richtek Technology Corporation. All rights reserved.
DS9069-09
November 2018
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RT9069
Typical Application Circuit
RT9069
EN
VCC
3.5V to 36V
EN
CIN
1μF
VOUT
VOUT
VCC
COUT
GND
(Effective Capacitance
1μF)
Note (1) : All the input and output capacitors are the suggested values, referring to the effective capacitances,
subject to any de-rating effect, like a DC bias.
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is a registered trademark of Richtek Technology Corporation.
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RT9069
Typical Operating Characteristics
Output Voltage vs. Temperature
Output Voltage vs. Output Current
2.60
2.52
Output Voltage (V)
2.56
2.54
Load = 0.1mA
Load = 20mA
Load = 0.1mA
Load = 20mA
2.5
Output Voltage (V)
VCC = 12V,
VCC = 12V,
VCC = 36V,
VCC = 36V,
2.58
2.52
2.50
2.48
2.46
2.44
2.48
VCC = 36V
2.46
2.44
2.42
VOUT = 2.5V
VOUT = 2.5V
2.40
2.42
-50
-25
0
25
50
75
100
125
0
50
Temperature (℃)
Output Voltage vs. Supply Voltage
150
Quiescent Current vs. Supply Voltage
2
Load
Load
Load
Load
2.55
= 0mA
= 0.1mA
= 10mA
= 20mA
Quiescent Current (μA)
Output Voltage (V)
100
Output Current (mA)
2.6
2.5
2.45
3
6
9
12
15
18
21
24
27
30
33
1.9
1.8
1.7
1.6
VOUT = 2.5V
VCC = 3.5V to 36V, VOUT = 2.5V
2.4
1.5
3
36
6
9
12
15
18
21
24
27
30
33
36
Supply Voltage (V)
Supply Voltage (V)
Quiescent Current vs. Temperature
SHDN Input Leakage Current vs. VCC
6
SHDN Leakage Current (nA)
100
VCC = 36V
5
Quiescent Current(μA)
VCC = 12V
VCC = 24V
4
VCC = 12V
3
2
1
VOUT = 2.5V
80
60
40
20
EN = 0V
0
0
-50
-25
0
25
50
75
100
Temperature(℃)
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DS9069-09
November 2018
125
3
6
9
12
15
18
21
24
27
30
33
36
Supply Voltage (V)
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RT9069
SHDN Leakage Input Current vs. Temp.
Enable Threshold vs. Supply Voltage
SHDN Leakage Current (A)
1.6
2
1.4
1.2
EN Voltage (V)
1.5
1
0.8
VCC = 36V
0.6
High Threshold
1
Low Threshold
0.5
0.4
VCC = 3.5V
0.2
0
0
-50
-25
0
25
50
75
100
3
125
6
9
12
18
21
24
27
30
33
36
Dropout Voltage vs. Temperature
Enable Threshold vs. Temperature
2
0.5
High Threshold
1
Low Threshold
0.4
Dropout Voltage (V)
1.5
EN Voltage (V)
15
Supply Voltage (V)
Temperature (℃)
0.5
0.3
0.2
0.1
Vcc = 36V
Load = 10mA
0
-50
-25
0
25
50
75
100
0
125
-50
Temperature (℃)
-25
0
25
50
75
100
125
Temperature (℃)
PSRR vs. Frequency
Current Limit vs. Temperature
0
350
VOUT = 2.5V, ILOAD = 50mA
VCC = 12V
-20
250
PSRR (dB)
Current Limit (mA)
300
VCC = 36V
200
150
VCC = 5V
-40
-60
VCC = 12V
100
-80
50
VOUT = 2.5V
-100
0
-50
-25
0
25
50
75
100
Temperature (°C )
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8
125
10
100
1000
10000
100000
1000000
Frequency (Hz )
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DS9069-09
November 2018
RT9069
Ground Current vs. Load Current
Dropout Voltage vs. Output Current
350
5.0
4.5
Dropout Voltage (V)
GND Current (uA)
300
250
200
Rising, TA = 125°C
150
Rising, TA = 25°C
Rising, TA =40°C
100
4.0
3.5
3.0
125°C
25°C
40°C
2.5
2.0
1.5
1.0
50
0.5
0
0.001
VOUT = 5V
0.0
0.01
0.1
1
10
100
1000
0
Load Curremt (mA)
VOUT_ac
(50mV/Div)
ILoad
(50mA/Div)
ILoad
(50mA/Div)
Load Transient Response
Load Transient Response
VOUT_ac
(100mV/Div)
VOUT_ac
(100mV/Div)
ILoad
(100mA/Div)
ILoad
(50mA/Div)
November 2018
100
Time (250μs/Div)
Time (250μs/Div)
DS9069-09
80
VCC = 24V, VOUT = 2.5V, Iload = 10mA to 100mA
VCC = 12V, VOUT = 2.5V, Iload = 10mA to 100mA
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Load Transient Response
VOUT_ac
(50mV/Div)
Time (250μs/Div)
40
Output Current (mA)
Load Transient Response
VCC = 12V, VOUT = 2.5V, ILoad = 10mA to 200mA
20
VCC = 12V, VOUT = 2.5V, ILoad = 10mA to 100mA
Time (10μs/Div)
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RT9069
Line Transient Response
Line Transient Response
VOUT_ac
(20mV/Div)
VOUT_ac
(20mV/Div)
VCC
(5V/Div)
VCC = 4.4V to 15V, VOUT = 2.5V, Load = 100mA
VCC
(10V/Div)
Time (100μs/Div)
Time (100μs/Div)
Power On from EN
Power Off from EN
VCC
(10V/Div)
VCC
(10V/Div)
EN
(2V/Div)
EN
(2V/Div)
VOUT
(1V/Div)
VOUT
(1V/Div)
ILoad
(50mA/Div)
ILoad
(50mA/Div)
VCC = 24V, VOUT = 2.5V, Load = 100mA
Time (25μs/Div)
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VCC = 3.5V to 36V, VOUT = 2.5V, Load = 100mA
VCC = 24V, VOUT = 2.5V, Load = 100mA
Time (25μs/Div)
is a registered trademark of Richtek Technology Corporation.
DS9069-09
November 2018
RT9069
Application Information
Thermal Considerations
The maximum power dissipation depends on the
For continuous operation, do not exceed absolute
maximum junction temperature. The maximum power
dissipation depends on the thermal resistance of the IC
package, PCB layout, rate of surrounding airflow, and
difference between junction and ambient temperature.
The maximum power dissipation can be calculated by
the following formula :
operating ambient temperature for fixed TJ(MAX) and
where TJ(MAX) is the maximum junction temperature, TA
is the ambient temperature, and JA is the junction to
ambient thermal resistance.
For recommended operating condition specifications,
the maximum junction temperature is 125C. The
junction to ambient thermal resistance, JA, is layout
dependent. For SOP-8 (Exposed Pad) packages, the
thermal resistance, JA, is 30.6C/W on a standard
JEDEC 51-7 four-layer thermal test board. For
SOT-23-5 package, the thermal resistance, JA, is
218.1C/W on a standard JEDEC 51-7 four-layer
thermal test board. For SOT-89-5 package, the thermal
resistance, JA, is 113.9C/W on a standard JEDEC
51-7 four-layer thermal test board. For UDFN-6L
1.6x1.6 package, the thermal resistance, JA, is
46.5C/W on a standard JEDEC 51-7 four-layer
thermal test board. The maximum power dissipation at
allows the designer to see the effect of rising ambient
temperature on the maximum power dissipation
4.0
Maximum Power Dissipation (W)1
PD(MAX) = (TJ(MAX) TA) / JA
thermal resistance, JA. The derating curve in Figure 1
Four-Layer PCB
3.5
3.0
SOP-8 (Exposed Pad)
2.5
UDFN-6L 1.6x1.6
2.0
1.5
SOT-89-5
1.0
0.5
SOT-23-5
0.0
0
25
50
75
100
125
Ambient Temperature (°C)
Figure 1. Derating Curve of Maximum Power
Dissipation
TA = 25C can be calculated by the following formula :
PD(MAX) = (125C 25C) / (30.6C/W) = 3.2679W for
SOT-8 (Exposed Pad) package
PD(MAX) = (125C 25C) / (218.1C/W) = 0.4585W for
SOT-23-5 package
PD(MAX) = (125C 25C) / (113.9C/W) = 0.8779W for
SOT-89-5 package
PD(MAX) = (125C 25C) / (46.5C/W) = 2.15W for
UDFN-6L 1.6x1.6 package
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RT9069
Outline Dimension
H
A
M
EXPOSED THERMAL PAD
(Bottom of Package)
Y
J
X
B
F
C
I
D
Dimensions In Millimeters
Symbol
Dimensions In Inches
Min
Max
Min
Max
A
4.801
5.004
0.189
0.197
B
3.810
4.000
0.150
0.157
C
1.346
1.753
0.053
0.069
D
0.330
0.510
0.013
0.020
F
1.194
1.346
0.047
0.053
H
0.170
0.254
0.007
0.010
I
0.000
0.152
0.000
0.006
J
5.791
6.200
0.228
0.244
M
0.406
1.270
0.016
0.050
X
2.000
2.300
0.079
0.091
Y
2.000
2.300
0.079
0.091
X
2.100
2.500
0.083
0.098
Y
3.000
3.500
0.118
0.138
Option 1
Option 2
8-Lead SOP (Exposed Pad) Plastic Package
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RT9069
Symbol
Dimensions In Millimeters
Dimensions In Inches
Min
Max
Min
Max
A
0.889
1.295
0.035
0.051
A1
0.000
0.152
0.000
0.006
B
1.397
1.803
0.055
0.071
b
0.356
0.559
0.014
0.022
C
2.591
2.997
0.102
0.118
D
2.692
3.099
0.106
0.122
e
0.838
1.041
0.033
0.041
H
0.080
0.254
0.003
0.010
L
0.300
0.610
0.012
0.024
SOT-23-5 Surface Mount Package
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RT9069
Symbol
Dimensions In Millimeters
Dimensions In Inches
Min
Max
Min
Max
A
1.400
1.600
0.055
0.063
b
0.360
0.508
0.014
0.020
B
2.400
2.600
0.094
0.102
b1
0.406
0.533
0.016
0.021
C
3.937
4.250
0.155
0.167
C1
0.800
1.194
0.031
0.047
D
4.400
4.600
0.173
0.181
D1
1.397
1.700
0.055
0.067
e
1.400
1.600
0.055
0.063
H
0.356
0.430
0.014
0.017
5-Lead SOT-89 Surface Mount Package
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RT9069
Dimensions In Millimeters
Dimensions In Inches
Symbol
Min.
Max.
Min.
Max.
A
0.500
0.600
0.020
0.024
A1
0.000
0.050
0.000
0.002
A3
0.100
0.175
0.004
0.007
b
0.200
0.300
0.008
0.012
D
1.500
1.700
0.059
0.067
D2
0.950
1.050
0.037
0.041
E
1.500
1.700
0.059
0.067
E2
0.550
0.650
0.022
0.026
e
L
0.500
0.200
0.020
0.300
0.008
0.012
U-Type 6L DFN 1.6x1.6 Package
Richtek Technology Corporation
14F, No. 8, Tai Yuen 1st Street, Chupei City
Hsinchu, Taiwan, R.O.C.
Tel: (8863)5526789
Richtek products are sold by description only. Customers should obtain the latest relevant information and data sheets before placing orders and should verify that
such information is current and complete. Richtek cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Richtek product.
Information furnished by Richtek is believed to be accurate and reliable. However, no responsibility is assumed by Richtek or its subsidiaries for its use; nor for any
infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights
of Richtek or its subsidiaries.
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