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RT9077-33GJ5

P1-P3P4-P6P7-P9
RT9077
®
DS9077-02 February 2016 www.richtek.com
1
©
Copyright 2016 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Low Power, 14V, 200mA LDO Regulator
General Description
The RT9077 is a low-dropout (LDO) voltage regulator with
enable function offering benefits of up to 14V input voltage,
low-dropout, low-power operation, and miniaturized
packaging.
The features of low quiescent current and almost zero
disable current is ideal for powering the battery equipment
to a longer service life. The RT9077 is stable with ceramic
output capacitors over its wide input range from 3.5V to
14V and entire range of output load current (0mA to 200mA).
Features
Maximum Operating Input Voltage 14V
±±
±±
±2% Output Accuracy
200mA Output Current with EN
Less than 0.1
μμ
μμ
μA Zero Disable Current
Dropout Voltage : 0.4V at 100mA
Support Fixed Output Voltage 2.5V, 3.3V, 4.2V, 5V,
8V, 9V
Stable with Ceramic or Tantalum Capacitor
Current Limit Protection
Over-Temperature Protection
RoHS Compliant and Halogen Free
Applications
Portable, Battery Powered Equipments
Ultra Low Voltage Microcontrollers
Notebook Computers
Simplified Application Circuit
Note :
Richtek products are :
RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
Suitable for use in SnPb or Pb-free soldering processes.
Ordering Information
Marking Information
For marking information, contact our sales representative
directly or through a Richtek distributor located in your
area.
Pin Configurations
(TOP VIEW)
VCC
GND
EN
VOUT
NC
4
23
5
TSOT-23-5
Package Type
J5 : TSOT-23-5
RT9077-
Lead Plating System
G : Green (Halogen Free and Pb Free)
Output Voltage
25 : 2.5V
33 : 3.3V
42 : 4.2V
50 : 5V
80 : 8V
90 : 9V
VCC
EN
VOUT
GND
VOUT
RT9077
VCC
EN
C
IN
C
OUT
RT9077
2
DS9077-02 February 2016www.richtek.com
©
Copyright 2016 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Operation
Basic Operation
The RT9077 is a low quiescent current linear regulator
designed especially for low external component systems.
The input voltage range is from 3.5V to 14V.
The minimum required output capacitance for stable
operation is 1μF effective capacitance after consideration
of the temperature and voltage coefficient of the capacitor.
Output Transistor
The RT9077 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.
Pin Description
Function Block Diagram
Pin No. Pin Name Pin Function
1 VCC
Supply Voltage Input.
2 GND Ground.
3 EN Enable Control Input.
4 NC No Internal Connection.
5 VOUT Output of the Regulator.
Enable
The RT9077 delivers the output power when it is set to
enable state. When it works in disable state, there is
almost no output power and the operation quiescent
current is less than 0.1μA (typ.).
Current Limit Protection
The RT9077 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 150°C
(typ.) and the output current exceeds 30mA. Once the
junction temperature cools down by approximately 150°C,
the regulator automatically resumes operation.
VCC
GND
EN
VOUT
+
-
Current/Thermal
Sense
Bandgap
Reference
R1
R2
RT9077
3
DS9077-02 February 2016 www.richtek.com
©
Copyright 2016 Richtek Technology Corporation. All rights reserved. is a registered trademark of Richtek Technology Corporation.
Electrical Characteristics
Parameter Symbol Test Conditions Min Typ Max Unit
Supply Voltage
V
CC
3.5 -- 14 V
Output Voltage Range V
OUT
2.5 -- 12 V
DC Output Accuracy V
OUT
I
LOAD
= 1mA
2 -- 2 %
Dropout Voltage V
DROP
I
LOAD
= 100mA, V
CC
> 4.5V -- 0.4 1.2 V
I
LOAD
= 100mA,
V
CC
> 3.5V and < 4.5V
-- -- 1.5 V
VCC Consumption Current I
Q
I
LOAD
= 20mA -- 70 100 A
Shutdown GND Current V
EN
= 0V -- 0.1 1 A
Shutdown Leakage Current V
EN
= 0V, V
OUT
= 0V -- 0.1 1 A
EN Input Current I
EN
V
EN
= 14V -- 0.1 -- A
Line Regulation V
LINE
I
LOAD
= 1mA, 5.5V < V
CC
< 14V -- -- 0.4 %
I
LOAD
= 1mA, 3.5V < V
CC
< 5.5V -- 0.1 0.3 %
Load Regulation V
LOAD
1mA < I
LOAD
< 200mA -- 0.5 1 %
Output Current Limit I
LIM
V
OUT
= 0.5 x V
OUT(normal)
210 350 490 mA
Enable Input
Voltage
Logic-High V
IH
-- -- 2
V
Logic-Low V
IL
0.6 -- --
Thermal Shutdown Temperature T
SD
I
LOAD
= 30mA -- 150 -- °C
Thermal Shutdown Hysteresis T
SD
-- 20 -- °C
Absolute Maximum Ratings (Note 1)
VCC, EN to GND------------------------------------------------------------------------------------------------------------ −0.3V to 15V
VOUT to GND
RT9077-90 -------------------------------------------------------------------------------------------------------------------- −0.3V to 15V
RT9077-25/ RT9077-33/ RT9077-50 ------------------------------------------------------------------------------------ −0.3V to 6V
VOUT to VCC --------------------------------------------------------------------------------------------------------------- −15V to 0.3V
Power Dissipation, P
D
@ T
A
= 25°C
TSOT-23-5 -------------------------------------------------------------------------------------------------------------------- 0.43W
Package Thermal Resistance (Note 2)
TSOT-23-5, θ
JA
-------------------------------------------------------------------------------------------------------------- 230.6°C/W
Junction Temperature ------------------------------------------------------------------------------------------------------ 150°C
Lead Temperature (Soldering, 10 sec.) -------------------------------------------------------------------------------- 260°C
Storage Temperature Range --------------------------------------------------------------------------------------------- −60°C to 150°C
ESD Susceptibility (Note 3)
HBM (Human Body Model) ----------------------------------------------------------------------------------------------- 2kV
Recommended Operating Conditions (Note 4)
Supply Input Voltage ------------------------------------------------------------------------------------------------------- 3.5V to 14V
Junction Temperature Range --------------------------------------------------------------------------------------------- −40°C to 125°C
Ambient Temperature Range --------------------------------------------------------------------------------------------- −40°C to 85°C
(V
OUT
+ 1 < V
CC
< 14V, T
A
= 25°C, unless otherwise specified)
P1-P3P4-P6P7-P9

RT9077-33GJ5

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Description:
IC REG LIN 3.3V 200MA TSOT23-5
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