General Description
The AS1352 is a high-performance quad CMOS low dropout voltage regulator in a single QFN package. The efficient set of programmable power supplies is optimized to deliver the best compromise between quiescent current and regulator performance for mobile phones, PDAs, MP3 players, and other battery powered devices.

KEY FEATUREs
4 Independent Voltage Regulators with Shutdown
Output Current: 200mA each LDO
One Time Programmable Output Voltage (User- or Factory-Trimmed)
Programmable Output Voltage Range: 1.8 to 3.3V in 0.1V Steps
Accuracy: ±2%
PSRR: 70dB at 1kHz, 40dB at 100kHz
Line Regulation: ±2mV
Load Regulation: ±0.6mV
Supply Range: 3 to 5.5V
0.2V Dropout Voltage @ I = 200mA
Shutdown Current: ≤1µA
Supply Current Without Load: 225µA
Softstart for Low Inrush Current
Stable with Low ESR Ceramic Capacitors from 1 to 4.7µF
Low Noise: 40µV rms @10Hz to 100kHz Bandwidth
Thermal Protection
Over-Current Protection
Temperature Range: -40 to +85°C
Package Types
- 12-pin QFN 4x4
- 16-pin QFN 3x3

APPLICATIONs
The AS1352 is ideal for cordless and mobile phones, MP3 players, CD and DVD players, PDAs, handheld computers, digital cameras, and any other hand-held battery-powered device.