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Maxim > Products > [Power and Battery Management] 
MAX1763
1.5A, Low-Noise, 1MHz, Step-Up DC-DC Converter

High-Power Low-Noise 1MHz Step-Up DC-DC Converter


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 384kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX1763 is a high-efficiency, low-noise, step-up DC-DC converter intended for use in battery-powered wireless applications. This device maintains exceptionally low quiescent supply current (110µA) despite its high 1MHz operating frequency. Small external components and a tiny package make this device an excellent choice for small hand-held applications that require the longest possible battery life.

The MAX1763 uses a synchronous-rectified pulse-width-modulation (PWM) boost topology to generate 2.5V to 5.5V outputs from a wide range of input sources, such as one to three alkaline or NiCd/NiMH cells or a single Lithium-ion (Li+) cell. Maxim's proprietary Idle Mode™ circuitry significantly improves efficiency at light load currents while smoothly transitioning to fixed-frequency PWM operation at higher load currents to maintain excellent full-load efficiency. Low-noise, forced-PWM mode is available for applications that require constant-frequency operation at all load currents. The MAX1763 may also be synchronized to an external clock to protect sensitive frequency bands in communications equipment.

The MAX1763 includes an on-chip linear gain block that can be used to build a high-power external linear regulator or as a low-battery comparator. Soft-start and current limit functions permit optimization of efficiency, external component size, and output voltage ripple.

The MAX1763 is available in a space-saving 16-pin QSOP package or a high-power (1.5W) 16-pin TSSOP-EP package.

An evaluation kit is available:  MAX1763EVKIT  

Key Features   Applications/Uses
  • Up to 94% Efficiency
  • +0.7V to +5.5V Input Voltage Range
  • 1.1V Guaranteed Startup Input Voltage
  • Up to 1.5A Output
  • Fixed 3.3V Output or Adjustable (2.5V to 5.5V)
  • 1MHz PWM Synchronous-Rectified Topology
  • 1µA Logic-Controlled Shutdown
  • Analog Gain Block for Linear-Regulator or Low-Battery Comparator
  • Adjustable Current Limit and Soft-Start
  • 1.5W TSSOP Package Available

 
  		• Digital Cordless Phones
  		• Handheld Instruments (PDAs, Palmtops)
  		• Palmtop Computers
  		• PCS Phones
  		• Personal Communicators
  		• Wireless Handsets

    Key Specifications:  Step-Up Switching Regulators
    Part Number VIN
    (V)    		 VIN
    (V)    		 VOUT
    (V)    		 VOUT
    (V)    		 Preset VOUT
    (V)    		 Max. IOUT
    (A)    		 Max. IOUT
    (A)    		 Output Adjust. Method DC-DC Outputs Oper. Freq.
    (kHz)    		 Package/Pins Smallest Available Pckg.
    (mm2)    		 Price
    min max min max ≥ ≤ max w/pins See Notes
    MAX1763  0.7 5.5 2.5 5.5 3.3 1.5 1.5
    Preset
    Resistor
    		 1 1000
    QSOP/16
    TSSOP-EP/16
    		 31 $2.95 @1k
    See All Step-Up Switching Regulators (91)

    Diagram
    MAX1763: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  		• Application Note 1845: Choosing the Right DC-DC Converter for Automotive Applications - MAX1763
  		• Application Note 3755: High-Power White-LED Driver Operates on 1 or 2 Alkaline Cells - MAX1763

    Evaluation Kits
  		• MAX1763EVKIT

    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: 1-8 of 8

    MAX1763 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX1763EEE    
    		Active QSOP;16 pin;31 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0167 (PDF)
    Use pkgcode/variation: E16-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1763EEE-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX1763EEE+  
    		Active QSOP;16 pin;31 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0167 (PDF)
    Use pkgcode/variation: E16+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1763EEE+T    
    		Active QSOP;16 pin;31 mm²
    Outline Drawing: 21-0055 (PDF)
    Land Pattern: 90-0167 (PDF)
    Use pkgcode/variation: E16+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1763EUE    
    		Active TSSOP-EP;16 pin;33 mm²
    Outline Drawing: 21-0108 (PDF)
    Land Pattern: 90-0120 (PDF)
    Use pkgcode/variation: U16E-3*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1763EUE-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX1763EUE+  
    		Active TSSOP-EP;16 pin;33 mm²
    Outline Drawing: 21-0108 (PDF)
    Land Pattern: 90-0120 (PDF)
    Use pkgcode/variation: U16E+3*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1763EUE+T    
    		Active TSSOP-EP;16 pin;33 mm²
    Outline Drawing: 21-0108 (PDF)
    Land Pattern: 90-0120 (PDF)
    Use pkgcode/variation: U16E+3*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    Related Products
    MAX1703 1-Cell to 3-Cell, High Power (1.5A), Low-Noise, Step-Up DC-DC Converter
    MAX1700, MAX1701 1 Cell to 3 Cell, High-Power 1A, Low-Noise, Step-Up DC-DC Converters

    More Like This: View Product Families for Similar Products

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    Document Ref.: 19-1698; Rev 1; 2002-05-31
    This page last modified: 2007-06-13


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