描述 Description

The MAX38913/MAX38914 is a low-noise linear regulator that delivers up to 1A of load current with as low as 4μVRMS of output noise. The MAX38913/MAX38914 can dynamically change its output voltage between two separate levels. The MAX38913/MAX38914 has the pass-through mode which, when enabled, completely bypasses the linear regulator.

This regulator maintains ±1% output accuracy over a wide input voltage range, temperature, and load conditions. The no-load quiescent current in the regulation mode is 1.37mA. During the pass-through mode, unlike the conventional dropout mode of an LDO, the MAX38913/MAX38914 consumes very little quiescent current. The MAX38913/MAX38914 has a 6Ω active discharge feature to quickly discharge output capacitors of up to 300μF.

The MAX38913 has 33 programmable output-voltage settings for both voltage selections. The MAX38914 has pre-programmed output voltage levels of 2.3V and 2V.The MAX38913/MAX38914 is packaged in either a space-saving 12-bump WLP or a full-featured 3mm x 3mm, 14-pin TDFN package. Optional power-OK and power-on-reset pins are available in the 14-pin TDFN version.

Applications

Image SensorsPortable Sensor ApplicationsSD Memory Cards

特性 Features

? Delivers Flexible Output Range
? 1.8V to 5.5V Input Voltage Range
? 0.6V to 5.0V Output Voltage Range
? 1A Maximum Output Current
? 28mV Dropout at 1A Load Current and 5.0V Supply
? 33mV Dropout at 1A Load Current and 3.6V Supply


? Excellent DC and AC Performance
? 1% Regulation over Line, Load, and Temperature
? 4μVRMS of Output Noise, 10Hz to 100kHz
? 75dB PSRR at 10kHz


? High-Level System Integration
? Integrated Pass-Through Function
? Fast Active Discharge of 6Ω at OUT
? Dynamic Two-Level Voltage Scaling with 33 Levels for Each Option for Flexible Configuration (MAX38913)
? 2V, 2.3V Pre-Programmed Voltage Levels (MAX38914)
? Stable with 4μF (Minimum Capacitance)
? Overcurrent and Overtemperature Protection
? Power-OK/Power-on-Reset Output


? Operation Temperature Range from -40°C to +125°C
? Package
? 12-Bump, 0.4mm-Pitch WLP
? 14-Pin, 3mm x 3mm TDFN

應(yīng)用 Application

? 圖像傳感器
? 便攜式傳感器應(yīng)用
? SD存儲(chǔ)卡