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| LR9273 Datasheet, PDF (8/9 Pages) Unisonic Technologies – SUPER LOW ON RESISTANCE/LOW VOLTAGE 1A LDO REGULATOR | |||
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LR9273
Preliminary
ï® TYPICAL APPLICATION CIRCUIT
CMOS IC
Example of the Typical Application of UTC LR9273 (Fixed Output Type)
Phase Compensation
In these ICs, phase compensation is made with the output capacitor for securing stable operation even if the load
current is varied. For this purpose, use as much as a capacitor as C2. Recommendation value is as follows:
Mounting on PCB
Make VDD and GND lines sufficient. If their impedance is high, a current flows, the noise picked up or unstable
operation may result. Further use a 4.7μF or more value capacitor between VDD pin and GND pin as close as
possible.
Set an Output capacitor between VOUT pin and GND pin for phase compensation as close as possible.
Technical Notes on Output Voltage Setting of Adjustable Output type
VOUT
ADJ
RIC
GND
R2 I2
IIC
R3 I3
VOUT
1.0V
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
8 of 9
QW-R502-A30.a
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