Maxim > Products > Analog Switches and Multiplexers > MAX4836, MAX4837

MAX4836, MAX4837

500mA LDO Linear Regulators with Current-Limiting Switch

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

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.

Data Sheet

Download	Rev 0	(PDF, 360kB)
E-Mail

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

Applications/Uses

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

USB

Power Switches

Current Limit
(mA)

Fault Indicator

Current Limit Accuracy
(%)

Current Limit Set By

R_ON
(Ω)

V_SUPPLY
(V)

Oper. Temp.
(°C)

Package/Pins

Budgetary Price

≥

≤

typ

min

max

See Notes

MAX4836

Yes

500

Yes

Preset

0.4

2.5

5.5

-40 to +85

TDFN-EP/6

$1.15 @1k

MAX4837

See Data Sheet

See All Current Limit and USB Power Switches (77)

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 prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Typical Application Circuit

Product Guides

Signal Routing & Protection (PDF)

Reliability Reports

Reliability Report:	MAX4837.pdf
Show FIT data for:
Request Reliability Report for:

Software/Models

none

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX4836ETT18C-T			Active	TDFN-EP;6 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0058 (PDF) Use pkgcode/variation: T633-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4836ETT25C-T			Active	TDFN-EP;6 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0058 (PDF) Use pkgcode/variation: T633-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4836ETT28C-T			Active	TDFN-EP;6 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0058 (PDF) Use pkgcode/variation: T633-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4836ETT30C+			Active	TDFN-EP;6 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0058 (PDF) Use pkgcode/variation: T633+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4836ETT30C+T			Active	TDFN-EP;6 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0058 (PDF) Use pkgcode/variation: T633+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4836ETT30C-T			Active	TDFN-EP;6 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0058 (PDF) Use pkgcode/variation: T633-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4836ETT33C+			Active	TDFN-EP;6 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0058 (PDF) Use pkgcode/variation: T633+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4836ETT33C+T			Active	TDFN-EP;6 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0058 (PDF) Use pkgcode/variation: T633+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX4836ETT33C-T			Active	TDFN-EP;6 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0058 (PDF) Use pkgcode/variation: T633-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX4837ETT18D1-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX4837ETT18D2-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4837ETT18D3-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4837ETT18D4-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4837ETT25D1-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4837ETT25D2-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4837ETT25D3-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4837ETT25D4-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4837ETT28D1-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4837ETT28D2-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4837ETT28D3-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX4837ETT28D4-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4837ETT30D1-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4837ETT30D2-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4837ETT30D3-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4837ETT30D4-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4837ETT33D1-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4837ETT33D2-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4837ETT33D3-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX4837ETT33D4-T			Active	Land Pattern: Not Available	-40°C to +85°C	See data sheet

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-3374 Rev 0; 2004-08-04
This page last modified: 2009-12-07