ACE520C Datasheet, PDF (1/8 Pages) ACE Technology Co., LTD. – Dual 300mA High PSRR Linear Regulator

ACE520C
Dual 300mA High PSRR Linear Regulator
Description
ACE520C dual, low-noise, low-dropout regulator delivers at least 300mA of continuous output current.
The output voltage for each regulator is set independently by trimming. Output voltages are selectable in
100mV steps within a range of 1.0V to 4.5V. Typical output noise is 47uVrms,and PSRR is 73dB at 100Hz.
The ACE520C includes two independent logic-controlled shutdown inputs and allows the output of each
regulator to be turned of independently.
The ACE520C includes high accuracy voltage reference, error amplifier, current limit circuit and output
driver module.
The ACE520C has excellent load and line transient response and good temperature characteristics,
which can assure the stability of chip and power system. And it uses trimming technique to guarantee
output voltage accuracy within± 2%.
Features
 Two low dropout voltage regulators
 300mA output current for each LDO
 35uA operating supply current per LDO
 Low 47uV_RMS output noise
 Standby Mode: 0.1uA
 Low 300mV dropout at 300mA load
 73dB PSRR at 100Hz
 Excellent Line regulation: 0.05%/V
 Independent Shutdown controls
 1.0V to 4.5V Factory-Preset Output
 Output Current Limit
 Highly Accurate: ±2% (±1% customized)
Application
 Cellular phones
 Cordless phones and radio communication equipment
 Battery Powered equipment
 Notebook and hand-ole equipment
 Wireless LAN
 GPS receivers
Absolute Maximum Ratings
Parameter
Symbol
Max
Unit
Input voltage
Power Dissipation
SOT-23-6
Junction temperature
Storage temperature
Ambient Temperature
VIN
8
V
250
mW
TJ
125
O_C
TS
- 45 to 150
O_C
TA
-40 to 85
O_C
Note: Exceed these limits to damage to the device. Exposure to absolute maximum rating conditions may affect device reliability.
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