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MAX1832, MAX1833, MAX1834, MAX1835
High-Efficiency Step-Up Converters with Reverse Battery Protection


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Status
Active: In Production.

Data Sheet
FULL DATA SHEET (PDF, 388kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX1832-MAX1835 are high-efficiency step-up converters with complete reverse battery protection that protects the device and the load when the battery is reversed. They feature a built-in synchronous rectifier, which allows for over 90% efficiency and reduces size and cost by eliminating the need for an external Schottky diode.

These step-up converters operate from a +1.5V to +5.5V input voltage range and deliver up to 150mA of load current. The MAX1833EUT/MAX1835EUT (SOT devices) have a fixed 3.3V output voltage. The MAX1833ETT30 (TDFN device) has a fixed 3.0V output voltage. The MAX1832/MAX1834 have adjustable outputs from +2V to +5.5V. In shutdown, the MAX1832/MAX1833 connect the battery input to the voltage output, allowing the input battery to be used as a backup or real-time clock supply when the converter is off (see Selector Guide).

MAX183_EUT devices are available in a miniature 6-pin SOT23 package. The MAX1833ETT30 is available in a 3mm x 3mm thin DFN package. The MAX1832EVKIT is available to speed designs.

An evaluation kit is available:  MAX1833EVKIT  

Key Features   Applications/Uses
  • Reverse Battery Protection for DC-DC Converter and Load
  • Up to 90% Efficiency
  • No External Diode or FETs Needed
  • Internal Synchronous Rectifier
  • 4µA Quiescent Current
  • <1µA Shutdown Supply Current
  • +1.5V to +5.5V Input Voltage Range
  • Accurate active-low SHDN Threshold for Low-Battery Cutoff
  • BATT Connected to OUT in Shutdown for Backup Power (MAX1832/MAX1833)
  • RST-bar Output (MAX1833/MAX1835)
  • Fixed 3.3V/3.0V Output Voltage
  • Adjustable Output Voltage (MAX1832/MAX1834)
  • Up to 150mA Output Current
  • Tiny 6-Pin SOT23 Package
  • Tiny 6-Pin Thin QFN Package (MAX1833ETT30)

 
  		• Battery Backup
  		• Cordless Phones
  		• Digital Cameras
  		• Handheld Instruments
  		• Local 3.3V to 5V Supplies
  		• Medical Diagnostic Equipment
  		• Pagers
  		• PC Cards
  		• Remote Wireless Transmitters

    Key Specifications:  Step-Up 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)    		 Package/Pins Smallest Available Pckg.
    (mm2)    		 Price
    min max min max ≥ ≤ max w/pins See Notes
    MAX1832  1.5 5.5 2 5.5 - 0.15 0.15 Resistor 1 500
    SOT/6
    		 9 $1.52 @1k
    MAX1833  3.3 3.3 3.3 Preset
    SOT/6
    TDFN-EP/6
    		 $1.52 @1k
    MAX1834  2 5.5 - Resistor
    SOT/6
    		 $1.52 @1k
    MAX1835  3.3 3.3 3.3 Preset
    SOT/6
    		 $1.52 @1k
    See All Step-Up Switching Regulators (91)

    Diagram
    MAX1832, MAX1833, MAX1834, MAX1835: Pin Configuration
    Pin Configuration

    Application Notes
  		• Application Note 2047: Step-Up/Step-Down Converter Features Ultra-Low Quiescent Current - MAX1833

    Evaluation Kits
  		• MAX1833EVKIT

    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: 1-17 of 17

    MAX1832 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX1832EUT#TG16    
    		Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6FH-6*
    		-40°C to +85°C RoHS/Lead-Free: RoHS Qualified
    Materials Analysis
    MAX1832EUT#G16    
    		Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6FH-6*
    		-40°C to +85°C RoHS/Lead-Free: RoHS Qualified
    Materials Analysis
    MAX1832EUT  
    		Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6F-6*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1832EUT-T    
    		Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6F-6*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1833 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX1833EUT#TG16    
    		Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6FH-6*
    		-40°C to +85°C RoHS/Lead-Free: RoHS Qualified
    Materials Analysis
    MAX1833EUT    
    		Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6F-6*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1833EUT-T    
    		Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6F-6*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1833ETT30+  
    		Active TDFN-EP;6 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0058 (PDF)
    Use pkgcode/variation: T633+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1833ETT30+T    
    		Active TDFN-EP;6 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0058 (PDF)
    Use pkgcode/variation: T633+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1833ETT30-T    
    		Active TDFN-EP;6 pin;10 mm²
    Outline Drawing: 21-0137 (PDF)
    Land Pattern: 90-0058 (PDF)
    Use pkgcode/variation: T633-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1834 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX1834EUT#TG16    
    		Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6FH-6*
    		-40°C to +85°C RoHS/Lead-Free: RoHS Qualified
    Materials Analysis
    MAX1834EUT#G16    
    		Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6FH-6*
    		-40°C to +85°C RoHS/Lead-Free: RoHS Qualified
    Materials Analysis
    MAX1834EUT-T    
    		Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6F-6*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1835 Free
    Sample    		 Buy Status
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX1835EUT#TG16    
    		Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6FH-6*
    		-40°C to +85°C RoHS/Lead-Free: RoHS Qualified
    Materials Analysis
    MAX1835EUT#G16    
    		Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6FH-6*
    		-40°C to +85°C RoHS/Lead-Free: RoHS Qualified
    Materials Analysis
    MAX1835EUT    
    		Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6F-6*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1835EUT-T    
    		Active SOT;6 pin;9 mm²
    Outline Drawing: 21-0058 (PDF)
    Land Pattern: 90-0175 (PDF)
    Use pkgcode/variation: U6F-6*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis

    More Information
  		• Topmark Coding: MAX1832 MAX1833 MAX1834 MAX1835
  		• New Product Press Release 2001-02-19 

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    Document Ref.: 19-1802; Rev 2; 2005-07-04
    This page last modified: 2009-10-26


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