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MAX5091

28V, 100mA, Low-Quiescent-Current LDO with Reset and Power-Fail Input/Output

100mA, 45µA I_Q, LDO Regulator in High-Power Thermally Enhanced 8-Pin SO or TDFN Package

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX5091 high-voltage linear regulator is designed to operate from a +5V to +28V input voltage, and withstands up to 40V transients. The device consumes only 45µA of quiescent current at 100µA output current. The MAX5091 delivers up to 100mA of output current with low 50mV maximum dropout voltage. The MAX5091 provides an active-low open-drain microprocessor RESET output. The reset timeout period is programmable and can be set with an external capacitor. The MAX5091 includes an uncommitted comparator for input voltage monitoring/power-fail indication. The device is available with a fixed +5V (MAX5091A) or +3.3V (MAX5091B) output. The MAX5091 is short-circuit protected and includes thermal shutdown.

The MAX5091 operates over the -40°C to +125°C automotive temperature range and is available in 8-pin, thermally enhanced TDFN and SO-EP packages.

Data Sheet

Download	Rev 0	(PDF, 292kB)
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Key Features

+5V to +28V Wide Operating Input Voltage Range
Withstands 40V Input Voltage Transients
Guaranteed 100mA Output Current
45µA Typical Quiescent Current at 100µA Output Current
Preset +5V (MAX5091A) or +3.3V (MAX5091B) Output Voltage
Stable with Only 10µF Output Capacitance
RESET Output with Adjustable Timeout Period
Uncommitted Comparator for Voltage Monitoring/Power-Fail Indication
Output Overload and Short-Circuit Protection
Thermal Shutdown
Available in 8-Pin TDFN (1.95W at T_A = +70°C) and 8-Pin SO (1.5W at T_A = +70°C)
Operates Over -40°C to +125°C Automotive Temperature Range

Applications/Uses

Automotive
Home Security/Safety
Industrial
Telecom/Networking

Key Specifications:

Linear Regulators

Part Number

Regulators

V_IN
(V)

Preset V_OUT
(V)

V_DROPOUT @Rated I_LOAD
(V)

Rated I_LOAD
(mA)

I_CC
(µA)

Low Batt./ Pwr. Fail Out

POK/Reset Thresh.
(V)

Watchdog

Reverse Batt. Protect.

Oper. Temp.
(°C)

Package/Pins

Smallest Available Pckg.
(mm²)

Budgetary Price

min

max

typ

max

nom

max w/pins

See Notes

MAX5091

3.3

0.3

100

Yes

Vout-10%

-40 to +125

SOIC(N)-EP/8

TDFN-EP/8

9.6

$0.93 @1k

See All Linear Regulators (146)

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

Automotive (PDF)

Reliability Reports

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Software/Models

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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
MAX5091AASA+			Active	SOIC(N)-EP;8 pin;30.9 mm² Outline Drawing:21-0111 (PDF) Land Pattern: 90-0151 (PDF) Use pkgcode/variation: S8E+14*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5091AASA+T			Active	SOIC(N)-EP;8 pin;30.9 mm² Outline Drawing:21-0111 (PDF) Land Pattern: 90-0151 (PDF) Use pkgcode/variation: S8E+14*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5091AATA+			Active	TDFN-EP;8 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0059 (PDF) Use pkgcode/variation: T833+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5091AATA+T			Active	TDFN-EP;8 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0059 (PDF) Use pkgcode/variation: T833+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5091BASA+			Active	SOIC(N)-EP;8 pin;30.9 mm² Outline Drawing:21-0111 (PDF) Land Pattern: 90-0151 (PDF) Use pkgcode/variation: S8E+14*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX5091BASA+T			Active	N.SO; Land Pattern: Not Available	-40°C to +125°C	See data sheet
MAX5091BATA+T			Active	TDFN-EP;8 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0059 (PDF) Use pkgcode/variation: T833+2*	-40°C to +125°C	RoHS/Lead-Free: Lead Free Materials Analysis

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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More Information

Topmark Coding	MAX5091
New Product Press Release	[ 2006-12-12 ]

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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.: 19-0654 Rev 0; 2006-12-01
This page last modified: 2006-12-01