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Maxim > Products > [Power and Battery Management]  [Military/Aerospace] 
MAX750A, MAX758A
Adjustable, PWM, Step-Down Regulator

We Recommend Improved Performance Devices, MAX887 for MAX750A, MAX1684/MAX1685 for MAX758A, for New Designs


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 216kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX750A/MAX758A are adjustable-output, CMOS, step-down, DC-DC switching regulators. The MAX758A accepts inputs from 4V to 16V and delivers 750mA, while the MAX750A accepts inputs from 4V to 11V and delivers 450mA. Typical efficiencies are 85% to 90%. Typical quiescent current is 1.7mA, or only 6µA in shutdown mode. The output does not exhibit any ripple at subharmonics of the switching frequency over its specified range.

Pulse-width-modulation (PWM) current-mode control provides precise output regulation and excellent transient responses. Output voltage accuracy is guaranteed to be ±4.5% plus feedback-resistor tolerance over line, load, and temperature variations. Fixed-frequency switching and absence of subharmonic ripple allows easy filtering of output ripple and noise, as well as the use of small external components. These regulators require only a single inductor value to work in most applications, so no inductor design is necessary.

Key Features   Applications/Uses
  • Up to 750mA Load Currents
  • 160kHz High-Frequency, Current-Mode PWM
  • 85% to 96% Efficiencies
  • 33µH or 100µH Pre-Selected Inductor Value, No Component Design Required
  • 1.7mA Quiescent Supply Current
  • 6µA Shutdown Supply Current
  • Adjustable Output Voltage
  • Overcurrent, Soft-Start, and Undervoltage Lockout Protection
  • Cycle-by-Cycle Current Limiting
  • 8-Pin DIP/SO Packages (MAX750A)

 
  		• Cell Phones
  		• Computer Peripherals
  		• Portable Communications Equipment
  		• Portable Instrumentation

Key Specifications:  Step-Down Switching Regulators
Part Number VIN
(V)		 VIN
(V)		 VOUT
(V)		 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
MAX750A  4 11 1.25 11 0.45 0.45 Resistor 1 190
CDIP(N)/8
PDIP(N)/8
SOIC(N)/8
 30.9 $2.26 @1k
MAX758A  16 16 0.75 0.75
CDIP(N)/8
PDIP(N)/8
SOIC(W)/16
 81.9 $2.60 @1k
See All Step-Down Switching Regulators (264)

Diagram
MAX750A, MAX758A: Typical Operating Circuit
Typical Operating Circuit

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

    Reliability Reports
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    Software/Models
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    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: 1-27 of 27

    MAX750A Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX750AMJA    
    		Active CDIP(N);8 pin;82.6 mm²
    Outline Drawing: 21-0045 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: J8-2*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX750AC/D    
    		Active DICE SALES;NA pin;0 mm²

    Land Pattern: Not Applicable
    Use pkgcode/variation: DICE*
    		See data sheet
    MAX750ACPA    
    		Active PDIP(N);8 pin;79.7 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8-2*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX750AEPA    
    		Active PDIP(N);8 pin;79.7 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX750AESA+  
    		Active SOIC(N);8 pin;30.9 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+4*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX750AESA+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX750ACSA+T    
    		Active SOIC(N);8 pin;30.9 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+4*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX750ACSA+  
    		Active SOIC(N);8 pin;30.9 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8+4*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX750ACSA    
    		Active SOIC(N);8 pin;30.9 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-4*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX750ACSA-T    
    		Active SOIC(N);8 pin;30.9 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-4*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX750AESA    
    		Active SOIC(N);8 pin;30.9 mm²
    Outline Drawing: 21-0041 (PDF)
    Land Pattern: 90-0096 (PDF)
    Use pkgcode/variation: S8-4*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX750AESA-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX758A Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX758AMJA    
    		Active CDIP(N);8 pin;82.6 mm²
    Outline Drawing: 21-0045 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: J8-2*
    		-55°C to +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX758AC/D    
    		Active DICE SALES;NA pin;0 mm²

    Land Pattern: Not Applicable
    Use pkgcode/variation: DICE*
    		See data sheet
    MAX758AEVKIT-SO    
    		Active

    Land Pattern: Not Available

    		See data sheet
    MAX758AEPA+  
    		Active PDIP(N);8 pin;81.9 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8+3*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX758ACPA+  
    		Active PDIP(N);8 pin;81.9 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8+3*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX758ACPA    
    		Active PDIP(N);8 pin;81.9 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8-3*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX758AEPA    
    		Active PDIP(N);8 pin;81.9 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8-3*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX758ACWE    
    		Active SOIC(W);16 pin;110.6 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0107 (PDF)
    Use pkgcode/variation: W16-2*
    		0°C to +70°C RoHS/Lead-Free: No
    Materials Analysis
    MAX758ACWE-T    
    		Active

    Land Pattern: Not Available

    		0°C to +70°C See data sheet
    MAX758ACWE+  
    		Active SOIC(W);16 pin;110.6 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0107 (PDF)
    Use pkgcode/variation: W16+2*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX758ACWE+T    
    		Active SOIC(W);16 pin;110.6 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0107 (PDF)
    Use pkgcode/variation: W16+2*
    		0°C to +70°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX758AEWE    
    		Active SOIC(W);16 pin;110.6 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0107 (PDF)
    Use pkgcode/variation: W16-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX758AEWE-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet
    MAX758AEWE+  
    		Active SOIC(W);16 pin;110.6 mm²
    Outline Drawing: 21-0042 (PDF)
    Land Pattern: 90-0107 (PDF)
    Use pkgcode/variation: W16+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX758AEWE+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +85°C See data sheet

    Related Products
    MAX887, MAX887H 100% Duty Cycle, Low-Noise, Step-Down, PWM DC-DC Converter
    MAX1684, MAX1685 Low-Noise, 14V Input, 1A, PWM Step-Down Converters

    More Like This: View Product Families for Similar Products

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    Document Ref.: 19-0195; Rev 0; 1993-10-01
    This page last modified: 2007-05-30


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