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Maxim > Products > [Power and Battery Management]  [Automotive] 
MAX5035
1A, 76V, High-Efficiency MAXPower Step-Down DC-DC Converter


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 304kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
  Create a design and simulate with EE-Sim: [MAX5035]

The MAX5035 easy-to-use, high-efficiency, high-voltage, step-down DC-DC converter operates from an input voltage up to 76V and consumes only 270µA quiescent current at no load. This pulse-width modulated (PWM) converter operates at a fixed 125kHz switching frequency at heavy loads, and automatically switches to pulse-skipping mode to provide low quiescent current and high efficiency at light loads. The MAX5035 includes internal frequency compensation simplifying circuit implementation. The device uses an internal low-on-resistance, high-voltage, DMOS transistor to obtain high efficiency and reduce overall system cost. This device includes undervoltage lockout, cycle-by-cycle current limit, hiccup mode output short-circuit protection, and thermal shutdown.

The MAX5035 delivers up to 1A output current. The output current may be limited by the maximum power dissipation capability of the package. External shutdown is included, featuring 10µA (typ) shutdown current. The MAX5035A/B/C versions have fixed output voltages of 3.3V, 5V, and 12V, respectively, while the MAX5035D features an adjustable output voltage from 1.25V to 13.2V.

The MAX5035 is available in space-saving 8-pin SO and 8-pin plastic DIP packages and operates over the automotive (-40°C to +125°C) temperature range.

An evaluation kit is available:  MAX5035EVKIT  

Key Features   Applications/Uses
  • Wide 7.5V to 76V Input Voltage Range
  • Fixed (3.3V, 5V, 12V) and Adjustable (1.25V to 13.2V) Versions
  • 1A Output Current
  • Efficiency Up to 94%
  • Internal 0.4Ω High-Side DMOS FET
  • 350µA Quiescent Current at No Load, 10µA Shutdown Current
  • Internal Frequency Compensation
  • Fixed 125kHz Switching Frequency
  • Thermal Shutdown and Short-Circuit Current Limit
  • 8-Pin SO and PDIP Packages

 
  		• Automotive
  		• Consumer Electronics
  		• Distributed Power
  		• Industrial

    Key Specifications:  Step-Down 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)    		 Design Tools Package/Pins Smallest Available Pckg.
    (mm2)    		 Price
    min max min max ≥ ≤ max w/pins See Notes
    MAX5035  7.5 76 1.25 13.2
    3.3
    5
    12
    		 1 1
    Preset
    Resistor
    		 1 125 EE-Sim
    PDIP(N)/8
    SOIC(N)/8
    		 31 $2.00 @1k
    See All Step-Down Switching Regulators (264)

    Diagram
    MAX5035: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  		• Application Note 3668: High-Efficiency Current Drive for High-Brightness LEDs - MAX5035
  		• Application Note 3740: How to Generate Auxiliary Supplies from a Positive Buck DC-DC Converter - MAX5035
  		• Application Note 4413: Sequencing Circuit Provides Pseudo Voltage Tracker - MAX5035

    Evaluation Kits
  		• MAX5035EVKIT

    Reliability Reports
  		• Reliability Report: MAX5035.pdf AEC-MAX5035AASA_A.pdf MAX5035AASA.pdf
  		• Show FIT data for:

    Software/Models
  		• MAX5035_FR Test Circuit File
  		• MAX5035_TR1 Test Circuit File
  		• MAX5035_TR2 Test Circuit File
  		• MAX5035_TR Test Circuit File
  		• MAX5035_FR1 Test Circuit File
  		• MAX5035_FR2 Test Circuit File
  		• MAX5035 Orcad Library
  		• MAX5035 Macromodel

    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: 1-42 of 42

    MAX5035 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX5035DASA/V+T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX5035DUPA+  
    		Active PDIP(N);8 pin;82 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8+3*
    		0°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5035AUPA+  
    		Active PDIP(N);8 pin;82 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8+3*
    		0°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5035AUPA    
    		Active PDIP(N);8 pin;82 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8-3*
    		0°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5035BUPA    
    		Active PDIP(N);8 pin;82 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8-3*
    		0°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5035CUPA  
    		Active PDIP(N);8 pin;82 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8-3*
    		0°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5035DUPA  
    		Active PDIP(N);8 pin;82 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8-3*
    		0°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5035BUPA+  
    		Active PDIP(N);8 pin;82 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8+3*
    		0°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5035CUPA+  
    		Active PDIP(N);8 pin;82 mm²
    Outline Drawing: 21-0043 (PDF)
    Land Pattern: Not Applicable
    Use pkgcode/variation: P8+3*
    		0°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5035DASA/V+    
    		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 +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5035AASA  
    		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 +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5035AASA-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX5035BASA  
    		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 +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5035BASA-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX5035CASA  
    		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 +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5035CASA-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX5035DASA  
    		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 +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5035DASA-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 +125°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5035AASA+  
    		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 +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5035AASA+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 +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5035BASA+  
    		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 +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5035BASA+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 +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5035CASA+  
    		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 +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5035CASA+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 +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5035DASA+  
    		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 +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5035DASA+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 +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5035AUSA    
    		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 +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5035AUSA-T    
    		Active

    Land Pattern: Not Available

    		0°C to +85°C See data sheet
    MAX5035BUSA  
    		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 +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5035BUSA-T    
    		Active

    Land Pattern: Not Available

    		0°C to +85°C See data sheet
    MAX5035CUSA    
    		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 +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5035CUSA-T    
    		Active

    Land Pattern: Not Available

    		0°C to +85°C See data sheet
    MAX5035DUSA    
    		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 +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5035DUSA-T    
    		Active

    Land Pattern: Not Available

    		0°C to +85°C See data sheet
    MAX5035AUSA+  
    		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 +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5035AUSA+T    
    		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 +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5035BUSA+  
    		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 +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5035BUSA+T    
    		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 +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5035CUSA+  
    		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 +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5035CUSA+T    
    		Active

    Land Pattern: Not Available

    		0°C to +85°C See data sheet
    MAX5035DUSA+  
    		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 +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5035DUSA+T    
    		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 +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    Related Products
    MAX5033 500mA, 76V, High-Efficiency, MAXPower Step-Down DC-DC Converter

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    Document Ref.: 19-2988; Rev 3; 2009-07-31
    This page last modified: 2009-07-31


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