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MAX1792
500mA, Low-Dropout Linear Regulator in µMAX

0.5A LDO Has Only 130mV Dropout Voltage, Fits in 1.3W Power µMAX Package


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Data Sheet
FULL DATA SHEET (PDF, 248kB)
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Description
The MAX1792 low-dropout linear regulator operates from a +2.5V to +5.5V supply and delivers a guaranteed 500mA load current with low 130mV dropout. The high-accuracy (±1%) output voltage is preset at an internally trimmed voltage (see Selector Guide) or can be adjusted from 1.25V to 5.0V with an external resistive divider.

An internal PMOS pass transistor allows the low 80µA supply current to remain independent of load, making this device ideal for portable battery-operated equipment such as personal digital assistants (PDAs), cellular phones, cordless phones, base stations, and notebook computers.

Other features include an active-low open-drain reset output with a 4ms timeout period that indicates when the output is out of regulation, a 0.1µA shutdown mode, short-circuit protection, and thermal shutdown protection. The device is available in a miniature 1.3W, 8-pin power-µMAX® package with a metal pad on the underside of the package.

Key Features   Applications/Uses
  • Guaranteed 500mA Output Current
  • Low 130mV Dropout at 500mA
  • Up to ±1% Output Voltage Accuracy
    • Preset at 1.5V, 1.8V, 2.5V, 3.3V, or 5.0V
    • Adjustable from 1.25V to 5.0V
  • Reset Output with 4ms Timeout Period
  • Low 80µA Ground Current
  • 0.1µA Shutdown Current
  • Thermal Overload Protection
  • Output Current Limit
  • Tiny 1.3W Power-µMAX Package

 
  • Cell Phones/Cordless Phones
  • Docking Stations
  • Notebook Computers
  • Palmtop Computers
  • PDAs and Other Handheld Devices
  • USB Hubs
  • Wireless Base Stations

    Key Specifications:   Linear Regulators
    Part Number Regulators per Pkg. Min. VIN (V) Max. VIN (V) Preset VOUT (V) Min. Adjustable VOUT (V) Max. Adjustable VOUT (V) Typ. VDROPOUT@ Rated ILOAD (V) Rated ILOAD (mA) Max. ICC (µA) Low Battery/ Power Fail Output POK/ Reset Output Watchdog Reverse Battery Protection Industry Qualified Package Smallest Available Package (max w/pins) (mm2) Operating Temp. Range (°C) Price**
    MAX1792  1 2.5 5.5 1.5
    1.8
    2.5
    3.3
    5.0
    1.25 5 0.13 500 250 No No No No Automotive - AECQ100
    Automotive - General
    uMAX/8 15 -40 to +85 $1.15 @ 1k
    See All Linear Regulators (139)
    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
    MAX1792: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  • Application Note 883: Improved Power Supply Rejection For IC Linear Regulators - MAX1792

    Evaluation Kits
    none

    Reliability Reports
  • Show FIT data for:
  • Reliability Report: MAX1792EUAxx.pdf
  • AEC-Q100 Reliability Report MAX1792EUA33.pdf

    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: 1-20 of 20

    MAX1792 Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX1792EUA15  
    uMAX;8 pin;15 mm²
    Dwg: 21-0107C (PDF)
    Use pkgcode/variation: U8E-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1792EUA33+T  
    uMAX;8 pin;15 mm²
    Dwg: 21-0107C (PDF)
    Use pkgcode/variation: U8E+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1792EUA15+  
    uMAX;8 pin;15 mm²
    Dwg: 21-0107C (PDF)
    Use pkgcode/variation: U8E+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1792EUA15+T  
    uMAX;8 pin;15 mm²
    Dwg: 21-0107C (PDF)
    Use pkgcode/variation: U8E+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1792EUA50+  
    uMAX;8 pin;15 mm²
    Dwg: 21-0107C (PDF)
    Use pkgcode/variation: U8E+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1792EUA50+T  
    uMAX;8 pin;15 mm²
    Dwg: 21-0107C (PDF)
    Use pkgcode/variation: U8E+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1792EUA18+  
    uMAX;8 pin;15 mm²
    Dwg: 21-0107C (PDF)
    Use pkgcode/variation: U8E+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1792EUA18+T  
    uMAX;8 pin;15 mm²
    Dwg: 21-0107C (PDF)
    Use pkgcode/variation: U8E+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1792EUA25+  
    uMAX;8 pin;15 mm²
    Dwg: 21-0107C (PDF)
    Use pkgcode/variation: U8E+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1792EUA33+  
    uMAX;8 pin;15 mm²
    Dwg: 21-0107C (PDF)
    Use pkgcode/variation: U8E+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1792EUA50-T  
    uMAX;8 pin;15 mm²
    Dwg: 21-0107C (PDF)
    Use pkgcode/variation: U8E-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1792EUA15-T  
    uMAX;8 pin;15 mm²
    Dwg: 21-0107C (PDF)
    Use pkgcode/variation: U8E-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1792EUA18  
    uMAX;8 pin;15 mm²
    Dwg: 21-0107C (PDF)
    Use pkgcode/variation: U8E-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1792EUA18-T  
    uMAX;8 pin;15 mm²
    Dwg: 21-0107C (PDF)
    Use pkgcode/variation: U8E-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1792EUA25  
    uMAX;8 pin;15 mm²
    Dwg: 21-0107C (PDF)
    Use pkgcode/variation: U8E-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1792EUA25-T  
    uMAX;8 pin;15 mm²
    Dwg: 21-0107C (PDF)
    Use pkgcode/variation: U8E-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1792EUA33  
    uMAX;8 pin;15 mm²
    Dwg: 21-0107C (PDF)
    Use pkgcode/variation: U8E-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1792EUA33-T  
    uMAX;8 pin;15 mm²
    Dwg: 21-0107C (PDF)
    Use pkgcode/variation: U8E-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1792EUA50  
    uMAX;8 pin;15 mm²
    Dwg: 21-0107C (PDF)
    Use pkgcode/variation: U8E-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1792EUA25+T  
    uMAX;8 pin;15 mm²
    Dwg: 21-0107C (PDF)
    Use pkgcode/variation: U8E+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    Related Products
    MAX1793 Low-Dropout, Low-IQ, 1A Linear Regulator
    MAX603, MAX604 5V/3.3V or Adjustable, Low-Dropout, Low-IQ, 500mA Linear Regulators

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    Document Ref.: 19-1699; Rev 1; 2008-08-18
    This page last modified: 2008-08-18



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