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MAX4834, MAX4835

250mA LDO Linear Regulators with Current-Limiting Switch

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Active: In Production.


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.

Data Sheet

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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


  • Cell Phones
  • Global Positioning Systems (GPS)
  • Notebook Computers
  • PDAs and Palmtop Devices
  • SDIO Ports and Devices
  • USB Ports and Devices

Key Specifications:

Current Limit and USB Power Switches
Part Number Power Switches Current Limit
Current Limit
Fault Indicator Current Limit Accuracy
Current Limit Set By RON
Oper. Temp.
Min. Max. typ min max
MAX4834  1 250 250 Yes 10 Preset 0.4 2.5 5.5 -40 to +85
MAX4835  No
See All Current Limit and USB Power Switches (83)

Pricing Notes:

This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


MAX4834, MAX4835: Typical Application Circuit
Typical Application Circuit

More Information

Topmark Coding MAX4834
Topmark Coding MAX4835

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Document Ref.: 19-3373 Rev 1; 2011-09-27
This page last modified: 2011-09-27