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Maxim > Products > [Power and Battery Management] 
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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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 260kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

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 VIN
    (V)    		 VIN
    (V)    		 Adj. VOUT
    (V)    		 Adj. 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 min max typ max nom max w/pins See Notes
    MAX1806  1 2.25 5.5 0.8 4.5 0.17 500 400 No Vout-7% No No
    µMAX-EP/8
    		 15 -40 to +85 $1.40 @1k
    See All Linear Regulators (153)

    Diagram
    MAX1806: Typical Operating Circuit
    Typical Operating Circuit

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

    Reliability Reports
  		• Show FIT data for:
  		• Request Reliability Report for:

    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: 1-24 of 24

    MAX1806 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX1806EUA33/V+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX1806EUA18/V+    
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1806EUA33/V+    
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1806EUA18/V+T    
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1806EUA08    
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1806EUA08-T    
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1806EUA15    
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1806EUA15-T    
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1806EUA18    
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1806EUA18-T    
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1806EUA25    
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1806EUA25-T    
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1806EUA33    
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1806EUA33-T    
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1806EUA25+  
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1806EUA25+T    
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1806EUA18+  
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1806EUA18+T    
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1806EUA33+  
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1806EUA33+T    
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1806EUA08+  
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1806EUA08+T    
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1806EUA15+  
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (PDF)
    Use pkgcode/variation: U8E+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1806EUA15+T    
    		Active µMAX-EP;8 pin;15 mm²
    Outline Drawing: 21-0107 (PDF)
    Land Pattern: 90-0145 (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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    Document Ref.: 19-2018; Rev 0; 2001-06-18
    This page last modified: 2007-07-26


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