MAX4833

100mA LDO Linear Regulators with Current-Limiting Switch

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Overview

Guaranteed Minimum 100mA Load Current
Accurate Current Limit
Preset Output Voltages: 1.8V/2.5V/2.8V/3.0V/3.3V
2.5V to 5.5V Supply Voltage Range
Adjustable Soft-Start
Low Dropout Voltage
Thermal Shutdown
Reverse-Current Protection
Shutdown Output Discharge (MAX4833)
Low 90µA Supply Current
Ultra-Low 0.1µA Shutdown Current
Active-Low FLAG and Latch Off (MAX4832) or Active-Low RESET (MAX4833)
Tiny SOT23 and TDFN Packages

The MAX4832/MAX4833 family of low-dropout linear regulators (LDOs) feature an accurate current-limiting switch with an integrated active-low FLAG or active-low RESET function. These devices operate from 2.5V to 5.5V and deliver up to 100mA of load current at a preset output voltage. Preset output voltage levels are 1.8V/2.5V/2.8V/3.0V/3.3V.

The MAX4832/MAX4833 offer a programmable soft-start control function to eliminate false reset during startup. The MAX4832 provides an active-low FLAG function to notify the system when the load current exceeds the limit. The MAX4833 provides an active-low RESET function to notify the system when the output drops below the threshold. Additionally, reverse-current protection prevents current flowing from the output to the input. Other features include a low 90µA quiescent current, a 0.1µA shutdown current.

The MAX4832/MAX4833 are available in space-saving 6-pin SOT23 and TDFN packages. Each device is specified over the -40°C to +85°C extended temperature range. Contact factory for other programmed output voltage versions from 1.5V to 3.3V in 100mV increments.

For pin-compatible 250mA versions of this device, refer to the MAX4834/MAX4835. For pin-compatible 500mA versions of this device, refer to the MAX4836/MAX4837.

Applications