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Leadtrend - High PSRR CMOS LDO Regulator

Numéro de référence LD6922
Description High PSRR CMOS LDO Regulator
Fabricant Leadtrend 
Logo Leadtrend 





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LD6922 fiche technique
LD6922
9/1/2011
500mA, Ultra-Low Noise, High PSRR CMOS LDO Regulator
with Soft Start Function
REV: 01
General Description
The LD6922 is a micro power linear regulator with
minimum output voltage drop during load transient,
featuring ultra-low noise, low-dropout and high ripple
rejection ratio for optimal performance of battery-powered
systems. This SS pin can suppress the noise and is built in
with soft start function. As well, the LD6922 is stable with
an output capacitor of 1μF which reduces the board space
and cost.
The LD6922 is available in a space saving SC82-4,
SOT23-5, SC70-5, SC70-6, and WDFN-6L 1.6mm x
1.6mm package.
+Patented
Features
z Wide Operating Input Voltage Range2.5V to 5.5V
z Minimum Output Voltage Drop during Load Transient
z Ultra-Low Noise for RF Application
z Shutdown Current <1μA
z High PSRR 70dB@1kHz
z Stable with 1μF Output Capacitor
z Thermal Shutdown and Current Limiting Protection
z VOUT Discharge Function
z Soft Start Operation
z Fixed Output Voltage: 1.2V to 3.3V (step0.1V), and
3.45V.
Applications
z Battery-Powered Equipment
z Hand-Held Instruments
z Palmtops, Notebook Computers
Typical Application
Fig. 1 Typical Application Circuit for General Purpose
Leadtrend Technology Corporation
LD6922-DS-01 September 2011
1
www.leadtrend.com.tw

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