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Part Number: AAT3237
Description: The AAT3237 MicroPower™ Low Dropout Linear Regulator is ideally suited for portable applications...
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AAT3237
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General Description
AAT3237 General Description
The AAT3237 MicroPower™ Low Dropout Linear Regulator is ideally suited for portable applications where low noise, extended battery life and small size are critical. The AAT3237 has been specifically designed for low output noise performance, fast transient response and high power supply rejection ratio (PSRR).
Other features include low quiescent current, typically 70A, and low dropout voltage which is typically less than 400mV at full output current. The device is output short circuit protected and has a thermal shutdown circuit for additional protection under extreme conditions.
The AAT3237 also features a low-power shutdown mode for extended battery life. A Power-OK opendrain output signals when VOUT is in regulation.
The AAT3237 is available in a space saving 6-pin SOT23 or 8-pin SC70JW package in 13 factory programmed voltages of 1.2V, 1.5V, 1.8V, 2.0V, 2.3V, 2.5V, 2.7V, 2.8V, 2.85V, 2.9V, 30.V, 3.3V, or 3.5V.
AAT3237 Maximum Ratings
| Symbol | Description | Value | Units |
| VIN, POK | Input Voltage, POK | 6 | V |
| VENIN(MAX) | Maximum EN to Input Voltage | 0.3 | V |
| IOUT | DC Output Current | PD/(VIN-VO) | mA |
| TJ | Operating Junction Temperature Range | -40 to 150 | °C |
| TLEAD | Maximum Soldering Temperature (at leads, 10 sec) | 300 | °C |
AAT3237 Features
• Low Dropout - 400mV at 300mA
• Guaranteed 300mA Output
• High accuracy ±1.5%
• 70A Quiescent Current
• High Power Supply Ripple Rejection
• PowerOK (POK) Output
• Fast line and load transient response
• Short circuit protection
• Over-Temperature protection
• Uses Low ESR ceramic capacitors
• Shutdown mode for longer battery life
• Low temperature coefficient
• 13 Factory programmed output voltages
• SOT23 6-pin or SC70JW 8-pin package
AAT3237 Typical Application
• Cellular Phones
• Notebook Computers
• Desktop Computers
• Portable Communication Devices
• Personal Portable Electronics
• Digital Cameras
AAT3237 Connection Diagram
AAT3237
PDF/DataSheet Download
- Datasheet: AAT3237
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