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Maxim > Products > [Power and Battery Management]  [Automotive] 
MAX5091
28V, 100mA, Low-Quiescent-Current LDO with Reset and Power-Fail Input/Output

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


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 292kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

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.

Key Features   Applications/Uses
  • +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 TA = +70°C) and 8-Pin SO (1.5W at TA = +70°C)
  • Operates Over -40°C to +125°C Automotive Temperature Range

  
  		• Automotive
  		• Home Security/Safety
  		• Industrial
  		• Telecom/Networking

    Key Specifications:  Linear Regulators
    Part Number Regulators VIN
    (V)    		 VIN
    (V)    		 Preset VOUT
    (V)    		 VDROPOUT @Rated ILOAD
    (V)    		 Rated ILOAD
    (mA)    		 ICC
    (µA)    		 Low Batt./ Pwr. Fail Out POK/Reset Thresh.
    (V)    		 Watchdog Reverse Batt. Protect. Package/Pins Smallest Available Pckg.
    (mm2)    		 Oper. Temp.
    (°C)    		 Price
    min max typ max nom max w/pins See Notes
    MAX5091  1 5 28
    3.3
    5
    		 0.3 100 100 Yes Vout-10% No No
    SOIC(N)-EP/8
    TDFN-EP/8
    		 10 -40 to +125 $0.58 @1k
    See All Linear Regulators (153)

    Diagram
    MAX5091: Typical Application Circuit
    Typical Application Circuit

    Design Guides
  		• Automotive (PDF)

    Reliability Reports
  		• Show FIT data for:
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    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * 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.


    Devices: 1-7 of 7

    MAX5091 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX5091AASA+  
    		Active SOIC(N)-EP;8 pin;31 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

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX5091BASA+  
    		Active SOIC(N)-EP;8 pin;31 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

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX5091AATA+  
    		Active TDFN-EP;8 pin;10 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;10 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
    MAX5091BATA+T    
    		Active TDFN-EP;8 pin;10 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

    More Information
  		• Topmark Coding: MAX5091
  		• New Product Press Release 2006-12-12 

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


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