AAT3242 300mA/150mA Dual CMOS LDO Linear Regulator

The AAT3242 is a dual low dropout linear regulator with Power OK (POK) outputs. Two integrated regulators provide a high power 300mA output and a lower power 150mA output, making this device ideal for use with microprocessors and DSP cores in portable products. Two POK pins provide open drain output signals when their respective regulator output is within regulation. The AAT3242 has independent input voltage and enable pins for increased design flexibility. This device features a very low quiescent current (140μA typical) and low dropout voltages (typically 200mV and 400mV at the full output current level), making it ideal for portable applications where extended battery life is critical. The AAT3242 has complete over-current/short-circuit and over-temperature protection circuits to guard against extreme operating conditions. The AAT3242 is available in the space-saving, Pb-free, 12-pin TSOPJW and TDFN33 packages. This device is capable of operation over the -40°C to +85°C temperature range.

技术特性

High/Low Current Outputs, 300mA/150mA
Low Dropout:
LDO A: 400mV at 300mA
LDO B: 200mV at 150mA
High Output Voltage Accuracy: ±1.5%
High PSRR: 65dB at 1kHz
70μA Quiescent Current for Each LDO
Over-Current/Short-Circuit Protection
Over-Temperature Protection
Two POK Outputs
Independent Power and Enable Inputs
Uses Low Equivalent Series Resistance (ESR) Ceramic Capacitors
12-Pin TSOPJW and TDFN33 Packages
-40°C to +85°C Temperature Range

订购信息 Ordering Information

AAT3242

应用领域 APPLICATION

Cellular Phones
Digital Cameras
Handheld Instruments
Microprocessor / DSP Core / I/O Power
Notebook Computers
PDAs and Handheld Computers
Portable Communication Devices

AAT3242 典型应用

应用技术支持与电子电路设计开发资源下载	版本信息	大小
AAT3242 数据资料DataSheet下载:pdf	Rev.V2	2 页