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Maxim > Products > [Power and Battery Management] 
MAX1982, MAX1982EUT, MAX1983
Low-Voltage, Low-Dropout Linear Regulators with External Bias Supply


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 236kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX1982/MAX1983 are low-voltage, low-dropout linear regulators with an external bias supply input. The 5V bias supply drives the gate of the internal N-channel pass transistor, making these devices ideal for applications that require low-voltage outputs from low-voltage inputs. The MAX1982 delivers 1.2V (±3%) at 300mA from an input voltage of 1.25V to 5.5V. The MAX1983 delivers an adjustable output voltage from 0.8V to 2V.

The MAX1982/MAX1983 include a current-limit and thermal shutdown that protects the regulator in the event of a fault condition. Both devices are offered in a 6-pin SOT23 package and are specified over the extended (-40°C to +85°C) temperature range.

An evaluation kit is available:  MAX1982EVKIT  

Key Features   Applications/Uses
  • Low-Cost 1.2V, 300mA VID Supply
  • ±3% Output Voltage Accuracy
  • No Minimum Load Current Required
  • 1.25V to 5.5V Input Supply Voltage
  • 5V Input Bias Supply Voltage
  • Power-Good (PGOOD) Open-Drain Output with 1ms Rising Edge Propagation Delay (MAX1982)
  • Adjustable Output Voltage (MAX1983)
  • Low Supply Current (IBIAS + IIN = 165µA typ)
  • 5µA (max) Shutdown Supply Current
  • Tiny 6-Pin SOT23 Package

 
  		• Cell Phones
  		• Low-Dropout Regulators with External Bias Supply
  		• Notebook Computers
  		• PDAs
  		• VID Power Supplies

    Key Specifications:  Linear Regulators
    Part Number Regulators VIN
    (V)    		 VIN
    (V)    		 Preset VOUT
    (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
    MAX1982  1 1.25 5.5 1.2 - - 0.35 300 250 No Vout-9% No No
    SOT/6
    		 9 -40 to +85 $0.74 @1k
    MAX1983  - 0.8 2 -
    SOT/6
    		 $0.74 @1k
    See All Linear Regulators (153)

    Diagram
    MAX1982, MAX1983: Typical Operating Circuit
    Typical Operating Circuit

    Evaluation Kits
  		• MAX1982EVKIT

    Reliability Reports
  		• Reliability Report: MAX1983.pdf MAX1982.pdf
  		• 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: 1-8 of 8

    MAX1982EUT Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX1982EUT    
    		Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1982EUT+  
    		Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1982EUT-T    
    		Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1982EUT+T    
    		Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1983 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX1983EUT+  
    		Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1983EUT    
    		Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1983EUT-T    
    		Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1983EUT+T    
    		Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
  		• Topmark Coding: MAX1982 MAX1983
  		• New Product Press Release 2002-08-22 

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    Document Ref.: 19-2560; Rev 1; 2009-06-03
    This page last modified: 2009-06-03


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