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Maxim > Products > [Power and Battery Management]  [Automotive] 
MAX5033
500mA, 76V, High-Efficiency, MAXPower Step-Down DC-DC Converter

500mA, 76V, High-Efficiency, MAXPower™ Step-Down DC-DC Converter Consumes Only 350µA Quiescent Current at No Load


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 676kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
  Create a design and simulate with EE-Sim: [MAX5033]

The MAX5033 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 MAX5033 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 MAX5033 delivers up to 500mA 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 MAX5033A/B/C versions have fixed output voltages of 3.3V, 5V, and 12V, respectively, while the MAX5033D features an adjustable output voltage, from 1.25V to 13.2V.

The MAX5033 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.

Key Features   Applications/Uses
  • Wide 7.5V to 76V Input Voltage Range
  • Fixed (3.3V, 5V, 12V) and Adjustable (1.25V to 13.2V) Voltage Versions
  • 500mA Output Current
  • Efficiency Up to 94%
  • Internal 0.4Ω High-Side DMOS FET
  • 270µA 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
    MAX5033  7.5 76 1.25 13.2
    3.3
    5
    12
    		 0.5 0.5
    Preset
    Resistor
    		 1 125 EE-Sim
    PDIP(N)/8
    SOIC(N)/8
    		 81.9 $1.85 @1k
    See All Step-Down Switching Regulators (264)

    Diagram
    MAX5033: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  		• Application Note 3668: High-Efficiency Current Drive for High-Brightness LEDs - MAX5033
  		• Application Note 4381: MR-16 LED Driver with a 5V Auxiliary Output to Power a Pulsating LED Cooler - MAX5033

    Reliability Reports
  		• Reliability Report: MAX5033.pdf
  		• Show FIT data 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: 1-40 of 40

    MAX5033 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX5033AUPA+  
    		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 +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5033BUPA+  
    		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 +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5033CUPA+  
    		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 +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5033DUPA+  
    		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 +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX5033AUPA    
    		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 +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5033BUPA  
    		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 +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5033CUPA  
    		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 +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5033DUPA  
    		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 +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX5033AASA    
    		Active SOIC(N);8 pin;30.9 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
    MAX5033AASA-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX5033BASA    
    		Active SOIC(N);8 pin;30.9 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
    MAX5033BASA-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX5033CASA  
    		Active SOIC(N);8 pin;30.9 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
    MAX5033CASA-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX5033DASA  
    		Active SOIC(N);8 pin;30.9 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
    MAX5033DASA-T    
    		Active

    Land Pattern: Not Available

    		-40°C to +125°C See data sheet
    MAX5033AASA+  
    		Active SOIC(N);8 pin;30.9 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
    MAX5033AASA+T    
    		Active SOIC(N);8 pin;30.9 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
    MAX5033BASA+  
    		Active SOIC(N);8 pin;30.9 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
    MAX5033BASA+T    
    		Active SOIC(N);8 pin;30.9 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
    MAX5033CASA+  
    		Active SOIC(N);8 pin;30.9 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
    MAX5033CASA+T    
    		Active SOIC(N);8 pin;30.9 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
    MAX5033DASA+  
    		Active SOIC(N);8 pin;30.9 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
    MAX5033DASA+T    
    		Active SOIC(N);8 pin;30.9 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
    MAX5033AUSA    
    		Active SOIC(N);8 pin;30.9 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
    MAX5033AUSA-T    
    		Active

    Land Pattern: Not Available

    		0°C to +85°C See data sheet
    MAX5033BUSA  
    		Active SOIC(N);8 pin;30.9 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
    MAX5033BUSA-T    
    		Active SOIC(N);8 pin;30.9 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
    MAX5033CUSA    
    		Active SOIC(N);8 pin;30.9 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
    MAX5033CUSA-T    
    		Active

    Land Pattern: Not Available

    		0°C to +85°C See data sheet
    MAX5033DUSA  
    		Active SOIC(N);8 pin;30.9 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
    MAX5033DUSA-T    
    		Active

    Land Pattern: Not Available

    		0°C to +85°C See data sheet
    MAX5033AUSA+  
    		Active SOIC(N);8 pin;30.9 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
    MAX5033AUSA+T    
    		Active SOIC(N);8 pin;30.9 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
    MAX5033BUSA+  
    		Active SOIC(N);8 pin;30.9 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
    MAX5033BUSA+T    
    		Active SOIC(N);8 pin;30.9 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
    MAX5033CUSA+  
    		Active SOIC(N);8 pin;30.9 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
    MAX5033CUSA+T    
    		Active

    Land Pattern: Not Available

    		0°C to +85°C See data sheet
    MAX5033DUSA+  
    		Active SOIC(N);8 pin;30.9 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
    MAX5033DUSA+T    
    		Active SOIC(N);8 pin;30.9 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

    More Information
  		• New Product Press Release 2003-11-04 
  		• Product Ad: MAX5033

    Related Products
    MAX5035 1A, 76V, High-Efficiency MAXPower Step-Down DC-DC Converter

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    Document Ref.: 19-2979; Rev 3; 2007-02-12
    This page last modified: 2009-10-08


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