RT9069
36V, 2A I
Q
, Peak 200mA Low Dropout Voltage Linear
Regulator
General Description
The RT9069 is a low-dropout (LDO) voltage regulators
with enable function offering the benefits of high input
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
is stable with the ceramic output capacitor over its wide
input range from 3.5V to 36V and the entire range of
output load current.
Features
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
Stable with Ceramic or Tantalum Capacitor
Current Limit Protection
Over-Temperature Protection
RoHS Compliant and Halogen Free
Applications
Ordering Information
RT9069-
Package Type
SP : SOP-8 (Exposed Pad-Option 1)
B : SOT-23-5
X5 : SOT-89-5
QU : UDFN-6L 1.6x1.6 (U-type)
Lead Plating System
G : Green (Halogen Free and Pb Free)
Output Voltage
25 : 2.5V
30 : 3V
33 : 3.3V
50 : 5V
90: 9V
C0: 12V
Special Request: Any Voltage
between 2.5V and 12V under
specific business agreement
Portable, Battery Powered Equipments
Extra Low Voltage Microcontrollers
Notebook Computers
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
Note :
Richtek products are :
RoHS compliant and compatible with the current
requirements of IPC/JEDEC J-STD-020.
for use in SnPb or Pb-free soldering processes.
Suitable
Simplified Application Circuit
RT9069
EN
V
CC
C
IN
EN
VCC
GND
VOUT
C
OUT
V
OUT
Copyright © 2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS9069-09
November 2018
www.richtek.com
1
RT9069
Pin Configuration
(TOP VIEW)
VOUT
EN
4
VCC
NC
VCC
NC
VOUT
NC
2
3
4
8
7
EN
GND
NC
NC
5
5
4
GND
9
6
5
2
3
VCC
NC
VOUT
1
2
3
6
5
4
7
GND
NC
EN
1
2
3
VCC GND NC
VOUT
GND
EN
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)
1
2, 4, 5, 6
3
7,
9 (Exposed Pad)
8
1
3
5
2
4
5
4
1
2
3
UDFN-6L
1.6x1.6
1
2, 5
3
6,
7 (Exposed Pad)
4
Pin Name
VCC
NC
VOUT
GND
EN
Pin Function
Supply voltage input.
No internal connection.
Output of the regulator.
Ground. The exposed pad must be
soldered to a large PCB and connected
to GND for maximum thermal dissipation.
Enable control input.
Copyright © 2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
2
DS9069-09
November 2018
GND
RT9069
Functional Block Diagram
VCC
Current/Thermal
Sense
VOUT
-
GND
+
R1
R2
EN
Band gap
Reference
Operation
Basic Operation
The RT9069 is a high input voltage linear regulator
designed especially for low external component
systems. The input voltage range is from 3.5V to 36V.
The minimum required output capacitance for stable
operation is 1F effective capacitance after consideration
of the temperature and voltage coefficient of the capacitor.
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.
Enable
The RT9069 delivers the output power when it is set to
enable state. When it works in disable state, there is no
output power and the operation quiescent current is
zero.
Current Limit Protection
The RT9069 provides current limit function to prevent
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.
Copyright © 2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS9069-09
November 2018
www.richtek.com
3
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, P
D
@ T
A
= 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
(C
IN
= 1F, T
A
= 25C, for each LDO unless otherwise specified)
Parameter
Supply Voltage
Output Voltage Range
DC Output Accuracy
Dropout Voltage
Symbol
V
CC
V
OUT
V
OUT
V
DROP
I
LOAD
= 10mA
I
LOAD
= 10mA, V
CC
> 5V
Test Conditions
Min
3.5
2.5
2
--
Typ
--
--
--
0.2
Max
36
12
+2
0.36
Unit
V
V
%
V
Copyright © 2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
4
DS9069-09
November 2018
RT9069
Parameter
Symbol
Test Conditions
I
LOAD
= 0mA, V
OUT
5.5V
V
CC
Consumption Current
Shutdown Current
Shutdown Leakage Current
EN Input Current
I
EN
I
Q
I
LOAD
= 0mA, V
OUT
> 5.5V,
V
CC
=15V
V
EN
= 0V
V
EN
= 0V,
V
OUT
= 0V
V
EN
= 36V
I
LOAD
=
1mA,
V
OUT
+1
<
V
CC
< 36V, V
OUT
3.3V
I
LOAD
=
1mA,
V
OUT
+1
<
V
CC
< 36V, V
OUT
3.3V
0mA < I
LOAD
< 100mA
V
OUT
= 0.5 x V
OUT(normal)
--
--
--
--
--
1
200
--
0.6
I
LOAD
= 30mA
--
--
0.1
0.1
0.1
0.04
0.04
--
350
--
--
150
20
--
--
--
0.5
%
0.6
1
--
1.6
--
--
--
°C
°C
%
mA
V
A
A
A
Min
--
--
Typ
2
3.5
Max
3.5
5
Unit
A
A
Line Regulation
V
LINE
Load Regulation
Output Current Limit
Enable Input
Voltage
Logic-High
Logic-Low
V
LOAD
I
LIM
V
IH
V
IL
T
SD
T
SD
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
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 T
A
= 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.
is a registered trademark of Richtek Technology Corporation.
DS9069-09
November 2018
www.richtek.com
5
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