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

Applications/Uses

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

DataSheet

title	Download file
MAX4836-MAX4837 Data Sheet	MAX4836-MAX4837.pdf

Parametrics

Part Number	USB	Power Switches	Current Limit (mA)	Current Limit (mA)	Fault Indicator	Current Limit Accuracy (%)	Current Limit Set By	R_ON (Ω)	V_SUPPLY (V)	V_SUPPLY (V)	Oper. Temp. (°C)	Package/Pins	Budgetary Price
Part Number	USB	Power Switches	min	max	Fault Indicator	Current Limit Accuracy (%)	Current Limit Set By	typ	min	max	Oper. Temp. (°C)	Package/Pins	See Notes
MAX4836	Yes	1	500	500	Yes	10	Preset	0.4	2.5	5.5	-40 to +85	TDFN-EP/6	$1.29 @1k
MAX4837	Yes	1	500	500	No	10	Preset	0.4	2.5	5.5	-40 to +85	TDFN-EP/6	-

Ordering Information

Part Number	Status	Recommended Replacement	Package	Temp	RoHS
MAX4836ETT18C-T	No Longer Available		TDFN-EP,;6 pin;9.6 mm²	-40°C to +85°C	No
MAX4836ETT25C-T	No Longer Available		TDFN-EP,;6 pin;9.6 mm²	-40°C to +85°C	No
MAX4836ETT28C-T	No Longer Available		TDFN-EP,;6 pin;9.6 mm²	-40°C to +85°C	No
MAX4836ETT30C+	Active		TDFN-EP,;6 pin;9.6 mm²	-40°C to +85°C	Lead Free
MAX4836ETT30C+T	Active		TDFN-EP,;6 pin;9.6 mm²	-40°C to +85°C	Lead Free
MAX4836ETT30C-T	No Longer Available	MAX4836ETT30C+T	TDFN-EP,;6 pin;9.6 mm²	-40°C to +85°C	No
MAX4836ETT33C+	Active		TDFN-EP,;6 pin;9.6 mm²	-40°C to +85°C	Lead Free
MAX4836ETT33C+T	Active		TDFN-EP,;6 pin;9.6 mm²	-40°C to +85°C	Lead Free
MAX4836ETT33C-T	No Longer Available	MAX4836ETT33C+T	TDFN-EP,;6 pin;9.6 mm²	-40°C to +85°C	No

MAX4836-MAX4837.pdf MAX4837

MAX4836-MAX4837_cn.pdf MAX4837