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

Description
  Notify me when the EE-Sim online simulation tool supports: [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 (min) (V) VIN (max) (V) Min. VOUT (V) Max. VOUT (V) Preset VOUT (V) IOUT (A) IOUT (A) Output Adj. Method Operating Current, ICC (max) (mA) Number of DC-DC Outputs Operating Freq. (kHz) Package Smallest Available Package (max w/pins) (mm2) Price**
    MAX5033  7.5 76 1.25 13.2 3.3
    5.0
    12     		0.5 0.5 Preset
    Resistor     		0.5 1 125 PDIP(N)/8
    SOIC(N)/8     		31 $1.85 @ 1k
    See All Step-Down Switching Regulators (252)
    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.

    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

    Evaluation Kits
    none

    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
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX5033DUPA+  
    		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
    MAX5033CUPA+  
    		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
    MAX5033BUPA+  
    		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
    MAX5033AUPA+  
    		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
    MAX5033AUPA  
    		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
    MAX5033DUPA  
    		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
    MAX5033CUPA  
    		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
    MAX5033BUPA  
    		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
    MAX5033AASA+  
    		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
    MAX5033DASA-T    
    		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
    MAX5033AASA+T    
    		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
    MAX5033DASA+T    
    		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
    MAX5033DASA+  
    		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
    MAX5033BASA+  
    		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
    MAX5033BASA+T    
    		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
    MAX5033CASA+  
    		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
    MAX5033DASA  
    		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
    MAX5033CASA-T    
    		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
    MAX5033CASA  
    		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
    MAX5033CASA+T    
    		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
    MAX5033AASA  
    		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
    MAX5033AASA-T    
    		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
    MAX5033BASA  
    		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
    MAX5033BASA-T    
    		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
    MAX5033DUSA+  
    		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
    MAX5033AUSA-T    
    		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
    MAX5033CUSA+T    
    		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
    MAX5033CUSA+  
    		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
    MAX5033AUSA  
    		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
    MAX5033DUSA+T    
    		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
    MAX5033BUSA+T    
    		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
    MAX5033CUSA-T    
    		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
    MAX5033BUSA-T    
    		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
    MAX5033DUSA  
    		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
    MAX5033DUSA-T    
    		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
    MAX5033BUSA  
    		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
    MAX5033AUSA+  
    		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
    MAX5033AUSA+T    
    		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
    MAX5033BUSA+  
    		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
    MAX5033CUSA  
    		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

    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: 2007-08-15


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