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Maxim > Products > Power and Battery Management  Protection and Isolation  Military/Aerospace 
ICL7660, MAX1044
Switched-Capacitor Voltage Converters

20mA Charge Pump with Industry Standard Pinout


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Data Sheet
FULL DATA SHEET (PDF, 128kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX1044 and ICL7660 are monolithic, CMOS switched-capacitor voltage converters that invert, double, divide, or multiply a positive input voltage. They are pin compatible with the industry-standard ICL7660 and LTC1044. Operation is guaranteed from 1.5V to 10V with no external diode over the full temperature range. They deliver 10mA with a 0.5V output drop. The MAX1044 has a BOOST pin that raises the oscillator frequency above the audio band and reduces external capacitor size requirements.

The MAX1044/ICL7660 combine low quiescent current and high efficiency. Oscillator control circuitry and four power MOSFET switches are included on-chip. Applications include generating a -5V supply from a +5V logic supply to power analog circuitry. For applications requiring more power, the MAX660 delivers up to 100mA with a voltage drop of less than 0.65V.

Key Features   Applications/Uses
  • Miniature µMAX Package
  • 1.5V to 10.0V Operating Supply Voltage Range
  • 98% Typical Power-Conversion Efficiency
  • Invert, Double, Divide, or Multiply Input Voltages
  • BOOST Pin Increases Switching Frequencies (MAX1044)
  • No-Load Supply Current: 200µA Max at 5V
  • No External Diode Required for Higher-Voltage Operation

 
  		• -5V Supply from +5V Logic Supply
  		• Data Acquisition
  		• EIA/TIA-232E and EIA/TIA-562 Power Supplies
  		• Handheld Instruments (PDAs, Palmtops)
  		• Op-Amp Power Supplies
  		• Panel Meters
  		• Personal Communications Equipment
  		• Portable Telephones

    Key Specifications:   Charge Pumps
    Part Number Topology VIN (min) (V) VIN (max) (V) Operating Current, ICC (max) (mA) Unadjusted VOUT (V) IOUT (typ) (A) Operating Frequency (kHz) Features RoHS Available Industry Qualified Package Smallest Available Package (max w/pins) (mm2) Operating Temp. Range (°C) Price**
    ICL7660  Doubler
    Inverter
    Unregulated     		1.5 10 0.175 +2xVIN
    -VIN     		0.02 10
    •Adjustable Frequency
    		 Yes MIL-STD-883B Ceramic DIP/8
    PDIP/8
    SOIC/8
    uMAX/8     		16 -40 to +85
    0 to +70     		$1.13 @ 1k
    See All Charge Pumps (50)
    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
    ICL7660, MAX1044: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  		• Application Note 10: Lower Operating Frequency Improves ICL7660 Voltage-Conversion Efficiency - ICL7660
  		• Application Note 577: High-Frequency Switching IC Powers Portable Telephone - MAX1044
  		• Application Note 725: DC/DC Conversion without Inductors - ICL7660, MAX1044

    Evaluation Kits
    none

    Design Guides
  		• A/D CONVERTERS (PDF)

    Reliability Reports
  		• Show FIT data for:
  		• Reliability Report: ICL7660xxA.pdf
  		• 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: 1-44 of 44

    ICL7660 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    ICL7660EJA  
    		Ceramic DIP;8 pin;81 mm²
    Dwg: 21-0045
    Use pkgcode/variation: J8-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7660IJA  
    		Ceramic DIP;8 pin;81 mm²
    Dwg: 21-0045
    Use pkgcode/variation: J8-2*
    		-20°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7660AMJA  
    		Ceramic DIP;8 pin;81 mm²
    Dwg: 21-0045
    Use pkgcode/variation: J8-2*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7660AMJA/883B  
    		Ceramic DIP;8 pin;81 mm²
    Dwg: 21-0045
    Use pkgcode/variation: J8-2*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7660CTV  
    		Gold Can -TO;8 pin;88 mm²
    Dwg: 21-0022A (PDF)
    Use pkgcode/variation: G99-8*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7660AMTV  
    		Gold Can -TO;8 pin;88 mm²
    Dwg: 21-0022A (PDF)
    Use pkgcode/variation: G99-8*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7660AMTV/883B  
    		Gold Can -TO;8 pin;88 mm²
    Dwg: 21-0022A (PDF)
    Use pkgcode/variation: G99-8*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7660AMTV/HR  
    		Metal Can-TO;8 pin;88 mm²
    Dwg: 21-0022A (PDF)
    Use pkgcode/variation: T99-8*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7660EPA+  
    		PDIP;8 pin;82 mm²
    Dwg: 21-0043
    Use pkgcode/variation: P8+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    ICL7660IPA+  
    		PDIP;8 pin;82 mm²
    Dwg: 21-0043
    Use pkgcode/variation: P8+1*
    		-20°C to +85°C See data sheet
    Materials Analysis
    ICL7660CPA+  
    		PDIP;8 pin;82 mm²
    Dwg: 21-0043
    Use pkgcode/variation: P8+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    ICL7660CPA  
    		PDIP;8 pin;82 mm²
    Dwg: 21-0043
    Use pkgcode/variation: P8-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7660EPA  
    		PDIP;8 pin;82 mm²
    Dwg: 21-0043
    Use pkgcode/variation: P8-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7660IPA  
    		PDIP;8 pin;82 mm²
    Dwg: 21-0043
    Use pkgcode/variation: P8-1*
    		-20°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7660CSA  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-4*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7660CSA+T  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8+4*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    ICL7660CSA-T  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-4*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7660CSA+  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8+4*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    ICL7660ESA+T  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8+4*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    ICL7660ESA+  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8+4*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    ICL7660ESA-T  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-4*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7660ESA  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-4*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7660ISA-T  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-4*
    		-20°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7660ISA+T  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8+4*
    		-20°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    ICL7660ISA+  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8+4*
    		-20°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    ICL7660ISA  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-4*
    		-20°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7660CUA+T  
    		uMAX;8 pin;16 mm²
    Dwg: 21-0036J (PDF)
    Use pkgcode/variation: U8+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    ICL7660CUA+  
    		uMAX;8 pin;16 mm²
    Dwg: 21-0036J (PDF)
    Use pkgcode/variation: U8+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    ICL7660CUA  
    		uMAX;8 pin;16 mm²
    Dwg: 21-0036J (PDF)
    Use pkgcode/variation: U8-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    ICL7660CUA-T  
    		uMAX;8 pin;16 mm²
    Dwg: 21-0036J (PDF)
    Use pkgcode/variation: U8-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1044 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX1044MJA  
    		Ceramic DIP;8 pin;81 mm²
    Dwg: 21-0045
    Use pkgcode/variation: J8-2*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1044MJA/883B  
    		Ceramic DIP;8 pin;81 mm²
    Dwg: 21-0045
    Use pkgcode/variation: J8-2*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1044EPA+  
    		PDIP;8 pin;82 mm²
    Dwg: 21-0043
    Use pkgcode/variation: P8+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1044CPA+  
    		PDIP;8 pin;82 mm²
    Dwg: 21-0043
    Use pkgcode/variation: P8+1*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1044CPA  
    		PDIP;8 pin;82 mm²
    Dwg: 21-0043
    Use pkgcode/variation: P8-1*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1044EPA  
    		PDIP;8 pin;82 mm²
    Dwg: 21-0043
    Use pkgcode/variation: P8-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1044CSA  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-2*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1044CSA-T  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-2*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1044CSA+T  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8+2*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1044CSA+  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8+2*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1044ESA+T  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1044ESA  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1044ESA-T  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1044ESA+  
    		SOIC;8 pin;31 mm²
    Dwg: 21-0041B (PDF)
    Use pkgcode/variation: S8+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    Related Products
    MAX828, MAX829 Switched-Capacitor Voltage Inverters

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     Description 
     Key Features 
     Applications/Uses 
     Key Specifications 
     Diagram 

    		 Data Sheet 
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     Engineering Journals 
     Reliability Reports 
     Software/Models 
     Evaluation Kits 

    		 Price and Availability 
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     Buy Online 
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    Document Ref.: 19-4667; Rev 1; 1994-07-28
    This page last modified: 2007-05-29




             


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