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MAX4835：250mA LDO Linear Regulators with Current-Limiting Switch

The MAX4834/MAX4835 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 250mA of load current at a preset output voltage. Preset output voltage levels are 1.8V/2.5V/2.8V/3.0V/3.3V. The MAX4834/MAX4835 offer a programmable soft-start control function to eliminate false reset during startup. The MAX4834 provides an active-low FLAG function to notify the system when the load current exceeds the limit. The MAX4835 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 MAX4834/MAX4835 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 100mA versions of this device, refer to the MAX4832/MAX4833. For pin-compatible 500mA versions of this device, refer to the MAX4836/MAX4837.

Key Features Guaranteed Minimum 250mA 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 (MAX4835) Low 90µA Supply Current Ultra-Low 0.1µA Shutdown Current Active-Low FLAG and Latch Off (MAX4834) or Active-Low RESET (MAX4835) Tiny SOT23 and TDFN (3mm x 3mm) Packages

MAX4834, MAX4835: Typical Application Circuit Applications/Uses Cell Phones Global Positioning Systems (GPS) Notebook Computers PDAs and Palmtop Devices SDIO Ports and Devices USB Ports and Devices

DataSheet

Parametrics

Quality and Environmental Data

• MAX4835.pdf

Related Products

• MAX4836：500mA LDO Linear Regulators with Current-Limiting Switch

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