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Maxim > Products > [Power and Battery Management] 
MAX850, MAX851, MAX852, MAX853
Low-Noise, Regulated, Negative Charge Pump Power Supplies for GaAsFET Bias

1mVP-P Output Voltage Ripple (MAX853)


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Status
Part Number Status
MAX850 Active: In Production.
MAX851 Active: In Production.
MAX852 This product is being discontinued and is subject to Last Time Buy, after which new orders can not be placed. See Ordering Information for recommended replacements.
MAX853 Active: In Production.

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

Description
The MAX850-MAX853 low-noise, inverting, charge-pump power supplies are ideal for biasing GaAsFETs in cellular telephone transmitter amplifiers.

The MAX850-MAX852 offer both preset (-4.1V) and adjustable (-0.5V to -9.0V) output voltages. The MAX853 uses an external positive control voltage to set the negative output voltage. Input voltage range for all four devices is 4.5V to 10V. Output current is 5mA.

An internal linear regulator reduces the output voltage ripple to 2mVP-P. With a well-filtered control voltage (VCTRL), the MAX853 achieves typical output ripple of less than 1mVP-P. Supply current is 3mA max, and shutdown current is less than 1µA max over temperature (5µA max for MAX851).

An evaluation kit is available:  MAX850EVKIT  

Key Features   Applications/Uses
  • Fixed -4.1V or Adjustable -0.5V to -9V Output at 5mA
  • 4.5V to 10V Input Voltage Range
  • 2mVP-P Output Voltage Ripple (MAX850-MAX852)
  • 1mVP-P Output Voltage Ripple (MAX853)
  • 100kHz Charge-Pump Switching Frequency (MAX850/MAX851/MAX853)
  • External Synchronizing Clock Input (MAX852)
  • Logic-Level Shutdown Mode: 1µA Max Over Temperature (MAX850/MAX852/MAX853)
  • Low Cost, 8-Pin SO Package

 
  		• Cell Phones
  		• Continuously Adjustable GaAsFET Bias
  		• LCD-Bias Contrast Control
  		• Negative Regulated Power Supplies
  		• Personal Communicators, PDAs
  		• Wireless Data Loggers

    Key Specifications:  Charge Pumps
    Part Number Topology VIN
    (V)    		 VIN
    (V)    		 ICC
    (mA)    		 Unadj. VOUT
    (V)    		 Adj. VOUT
    (V)    		 Adj. VOUT
    (V)    		 IOUT
    (A)    		 Oper. Freq.
    (kHz)    		 Features Package/Pins Smallest Available Pckg.
    (mm2)    		 Oper. Temp.
    (°C)    		 Price
    min max max min max typ max w/pins See Notes
    MAX850 
    Inverter
    Regulated
    		 4.5 10 3 -4.1 -VIN-0.6 -0.5 0.005 100 Shutdown
    SOIC(N)/8
    		 31
    -40 to +85
    -20 to +85
    		 $1.65 @1k
    MAX851  -4.1
    SOIC(N)/8
    		 $1.65 @1k
    MAX853  -9
    SOIC(N)/8
    		 $1.65 @1k
    See All Charge Pumps (48)

    Diagram
    MAX850, MAX851, MAX852, MAX853: Typical Operating Circuit
    Typical Operating Circuit

    Evaluation Kits
  		• MAX850EVKIT

    Design Guides
  		• Low-Power Notebook ICs (PDF)
  		• Wireless (PDF)

    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: 1-37 of 37

    MAX850 Free
    Sample    		 Buy Status Recommended Replacement
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX850CSA-T    
    		Active


    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX850ISA+  
    		Active
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+5*
    		-20°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX850ISA+T    
    		Active
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+5*
    		-20°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX850CSA    
    		Active
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-5*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX850ESA    
    		Active
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-5*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX850ESA-T    
    		Active
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-5*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX850ESA+  
    		Active
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+5*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX850ESA+T    
    		Active
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+5*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX850ISA    
    		Active
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-5*
    		-20°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX850ISA-T    
    		Active


    Land Pattern: Not Available

    		-20°C to +85°C See data sheet
    MAX851 Free
    Sample    		 Buy Status Recommended Replacement
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX851CSA    
    		Active
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-5*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX851ESA    
    		Active
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-5*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX851ESA-T    
    		Active


    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX851ISA    
    		Active
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-5*
    		-20°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX851ISA-T    
    		Active


    Land Pattern: Not Available

    		-20°C to +85°C See data sheet
    MAX851ISA+  
    		Active
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+5*
    		-20°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX851ISA+T    
    		Active


    Land Pattern: Not Available

    		-20°C to +85°C See data sheet
    MAX852 Free
    Sample    		 Buy Status Recommended Replacement
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX852CSA-T    
    		Last Time Buy MAX850

    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX852CSA    
    		Last Time Buy MAX850
    		 SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-5*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX852ESA    
    		Last Time Buy MAX850
    		 SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-5*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX852ESA-T    
    		Last Time Buy MAX850

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX852ESA+  
    		Last Time Buy MAX850
    		 SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+5*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX852ESA+T    
    		Last Time Buy MAX850

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX852ISA    
    		Last Time Buy MAX850
    		 SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-5*
    		-20°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX852ISA-T    
    		Last Time Buy MAX850

    Land Pattern: Not Available

    		-20°C to +85°C See data sheet
    MAX853 Free
    Sample    		 Buy Status Recommended Replacement
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX853CSA+  
    		Active
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+5*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX853CSA-T    
    		Active


    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX853CSA+T    
    		Active


    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX853ESA+  
    		Active
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+5*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX853ESA+T    
    		Active
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+5*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX853ISA+  
    		Active
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+5*
    		-20°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX853ISA+T    
    		Active


    Land Pattern: Not Available

    		-20°C to +85°C See data sheet
    MAX853CSA    
    		Active
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-5*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX853ESA    
    		Active
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-5*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX853ESA-T    
    		Active


    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX853ISA    
    		Active
    		SOIC(N);8 pin;31 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-5*
    		-20°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX853ISA-T    
    		Active


    Land Pattern: Not Available

    		-20°C to +85°C See data sheet

    Related Products
    MAX881R Low-Noise Bias Supply in µMAX with Power OK for GaAsFET PA

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     Key Features 
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    Document Ref.: 19-0238; Rev 2; 1996-04-01
    This page last modified: 2008-10-01


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