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MAX1806
500mA, Low-Voltage Linear Regulator in µMAX

Low Input and Output Voltage Linear Regulator Delivers Up to 500mA in a Tiny Power µMAX Package


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Data Sheet
FULL DATA SHEET (PDF, 260kB)
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Description
The MAX1806 low-dropout linear regulator operates from a +2.25V to +5.5V supply and delivers a guaranteed 500mA load current with low 175mV dropout. The high-accuracy (±1%) output voltage is preset at an internally trimmed voltage (see Selector Guide) or can be adjusted from +0.8V to +4.5V with an external resistive-divider.

An internal PMOS pass transistor allows low 210µA supply current, making this device ideal for portable equipment such as personal digital assistants (PDAs), cellular phones, cordless phones, and other equipment, including base stations and docking stations.

Other features include an active-low, power-OK output that indicates when the output is out of regulation, a 0.02µA shutdown mode, short-circuit protection, and thermal shutdown protection. The MAX1806 comes 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
  • Output Down to 0.8V
  • Low 175mV Dropout at 500mA
  • ±1% Output Voltage Accuracy
    • Preset at 0.8V, 1.5V, 1.8V, 2.5V, or 3.3V
    • Adjustable from 0.8V to 4.5V
  • Power-OK Output
  • Low 210µA Ground Current
  • 0.02µA Shutdown Current
  • Thermal Overload Protection
  • Output Current Limit
  • Tiny 1.3W, 8-Pin Power-µMAX Package

 
  • Cell Phones/Cordless Phones
  • Docking Stations
  • Notebook Computers
  • Palmtop Computers
  • PDAs
  • USB Hubs
  • Wireless Base Stations

    Key Specifications:   Linear Regulators
    Part Number Regulators per Pkg. Min. VIN (V) Max. VIN (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 Nominal POK/Reset Threshold (V) Watchdog Reverse Battery Protection Package Operating Temp. Range (°C) Price**
    MAX1806  1 2.25 5.5 0.8 4.5 0.17 500 400 No Vout-7% No No uMAX/8 -40 to +85 $1.40 @ 1k
    See All Linear Regulators (141)
    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
    MAX1806: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  • Application Note 1845: Choosing the Right DC-DC Converter for Automotive Applications - MAX1806

    Evaluation Kits
    none

    Reliability Reports
  • Show FIT data for:
  • Reliability Report: MAX1806EUA.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

    MAX1806 Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX1806EUA08  
    uMAX;8 pin;
    Dwg: 21-0107 (PDF)
    Use pkgcode/variation: U8E-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1806EUA25+T  
    uMAX;8 pin;
    Dwg: 21-0107 (PDF)
    Use pkgcode/variation: U8E+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1806EUA18+  
    uMAX;8 pin;
    Dwg: 21-0107 (PDF)
    Use pkgcode/variation: U8E+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1806EUA18+T  
    uMAX;8 pin;
    Dwg: 21-0107 (PDF)
    Use pkgcode/variation: U8E+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1806EUA33+  
    uMAX;8 pin;
    Dwg: 21-0107 (PDF)
    Use pkgcode/variation: U8E+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1806EUA33+T  
    uMAX;8 pin;
    Dwg: 21-0107 (PDF)
    Use pkgcode/variation: U8E+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1806EUA08+  
    uMAX;8 pin;
    Dwg: 21-0107 (PDF)
    Use pkgcode/variation: U8E+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1806EUA08+T  
    uMAX;8 pin;
    Dwg: 21-0107 (PDF)
    Use pkgcode/variation: U8E+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1806EUA15+  
    uMAX;8 pin;
    Dwg: 21-0107 (PDF)
    Use pkgcode/variation: U8E+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1806EUA25+  
    uMAX;8 pin;
    Dwg: 21-0107 (PDF)
    Use pkgcode/variation: U8E+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1806EUA33-T  
    uMAX;8 pin;
    Dwg: 21-0107 (PDF)
    Use pkgcode/variation: U8E-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1806EUA08-T  
    uMAX;8 pin;
    Dwg: 21-0107 (PDF)
    Use pkgcode/variation: U8E-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1806EUA15  
    uMAX;8 pin;
    Dwg: 21-0107 (PDF)
    Use pkgcode/variation: U8E-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1806EUA15-T  
    uMAX;8 pin;
    Dwg: 21-0107 (PDF)
    Use pkgcode/variation: U8E-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1806EUA18  
    uMAX;8 pin;
    Dwg: 21-0107 (PDF)
    Use pkgcode/variation: U8E-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1806EUA18-T  
    uMAX;8 pin;
    Dwg: 21-0107 (PDF)
    Use pkgcode/variation: U8E-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1806EUA25  
    uMAX;8 pin;
    Dwg: 21-0107 (PDF)
    Use pkgcode/variation: U8E-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1806EUA25-T  
    uMAX;8 pin;
    Dwg: 21-0107 (PDF)
    Use pkgcode/variation: U8E-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1806EUA33  
    uMAX;8 pin;
    Dwg: 21-0107 (PDF)
    Use pkgcode/variation: U8E-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1806EUA15+T  
    uMAX;8 pin;
    Dwg: 21-0107 (PDF)
    Use pkgcode/variation: U8E+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  • Topmark Coding: MAX1806
  • New Product Press Release 2001-06-30 

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     Description 
     Key Features 
     Applications/Uses 
     Key Specifications 
     Diagram 

     Data Sheet 
     Application Notes 
     Design Guides 
     Engineering Journals 
     Reliability Reports 
     Software/Models 
     Evaluation Kits 

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    Document Ref.: 19-2018; Rev 0; 2001-06-18
    This page last modified: 2007-07-26



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