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

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

Key Features
  • Guaranteed Minimum 500mA 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 (MAX4837)
  • Low 90µA Supply Current
  • Ultra-Low 0.1µA Shutdown Current
  • Active-Low FLAG and Latch Off (MAX4836) or Active-Low RESET (MAX4837)
  • Tiny SOT23 and TDFN (3mm x 3mm) Packages
MAX4836, MAX4837: Typical Application Circuit
MAX4836, MAX4837: 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
titleDownload file
MAX4836-MAX4837 Data SheetMAX4836-MAX4837.pdf
Parametrics
Part NumberUSBPower SwitchesCurrent Limit
(mA)
Current Limit
(mA)
Fault IndicatorCurrent Limit Accuracy
(%)
Current Limit Set ByRON
(Ω)
VSUPPLY
(V)
VSUPPLY
(V)
Oper. Temp.
(°C)
Package/PinsBudgetary
Price
minmaxtypminmaxSee Notes
MAX4836Yes1500500Yes10Preset0.42.55.5-40 to +85TDFN-EP/6$1.29 @1k
MAX4837NoTDFN-EP/6-
Related Products
  • MAX6469:300mA LDO Linear Regulators with Internal Microprocessor Reset Circuit
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX4836ETT18C-TNo Longer AvailableTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CNo
MAX4836ETT25C-TNo Longer AvailableTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CNo
MAX4836ETT28C-TNo Longer AvailableTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CNo
MAX4836ETT30C+ActiveTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CLead Free
MAX4836ETT30C+TActiveTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CLead Free
MAX4836ETT30C-TNo Longer AvailableMAX4836ETT30C+TTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CNo
MAX4836ETT33C+ActiveTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CLead Free
MAX4836ETT33C+TActiveTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CLead Free
MAX4836ETT33C-TNo Longer AvailableMAX4836ETT33C+TTDFN-EP,;6 pin;9.6 mm²-40°C to +85°CNo
MAX4836-MAX4837.pdf MAX4837
MAX4836-MAX4837_cn.pdf MAX4837
MAX4836-MAX4837_cn.pdf MAX4837