ACE537P Datasheet, PDF (1/7 Pages) ACE Technology Co., LTD. – Low Noise High PSRR High Speed CMOS LDO

ACE537P
Low Noise High PSRR High Speed CMOS LDO
Description
The ACE537P is a high accuracy, low noise, high speed, low dropout CMOS Linear regulator with high
ripple rejection and fast discharge function. The devices offer a new level of cost effective performance in
cellular phones, laptop and notebook computers, and other portable devices.
The current limiter's fold-back circuit also operates as a short circuit protection and an output current
limiter at the output pin.
The ACE537P regulators are available in standard SOT-23-5 packages. Standard products are Pb-free
and Halogen-free.
Features
 Input voltage : 2.5V~5.5V
 Output range : 1.2V~3.3V
 Output current: 300mA Typ
 PSRR: 70dB @ 1KHz
 Dropout voltage: 170mV @ I_OUT=200mA
 Quiescent current: 30μA Typ.
 Shut-down current: < 1μA
 Recommend capacitor: 1uF
 Ultra Low Output Noise: 100uV_RMS
 Fast Discharge Function
Application
 MP3/MP4 Players
 Cellphones, radiophone, digital cameras
 Bluetooth, wireless handsets
 Others portable electronic device
Absolute Maximum Ratings ^(Note)
Symbol
Items
Value
Unit
V_IN
Input Voltage
-0.3～6
V
V_EN
Enable Pin
-0.3～6
V
V_pin
All Other Pins
GND-0.3 to VDD+0.3
V
P_DMAX
Power Dissipation
SOT23-5
0.3
W
T_J
Junction Temperature
-40~125
℃
T_stg
Storage Temperature
-55 to 150
℃
T_solder
Package Lead Soldering Temperature
260℃, 10s
Note: Exceed these limits to damage to the device. Exposure to absolute maximum rating conditions may affect device reliability.
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