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MAX4832, MAX4833
100mA LDO Linear Regulators with Current-Limiting Switch


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Data Sheet
FULL DATA SHEET (PDF, 368kB)
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Description
The MAX4832/MAX4833 family of low-dropout linear regulators (LDOs) feature an accurate current-limiting switch with an integrated FLAG-bar or RESET-bar function. These devices operate from 2.5V to 5.5V and deliver up to 100mA of load current at a preset output voltage. Preset output voltage levels are 1.8V/2.5V/2.8V/3.0V/3.3V.

The MAX4832/MAX4833 offer a programmable softstart control function to eliminate false reset during startup. The MAX4832 provides a FLAG-bar function to notify the system when the load current exceeds the limit. The MAX4833 provides a RESET-bar function to notify the system when the output drops below the threshold. Additionally, reverse-current protection prevents current flowing from the output to the input. Other features include a low 90µA quiescent current, a 0.1µA shutdown current.

The MAX4832/MAX4833 are available in space-saving 6-pin SOT23 and TDFN packages. Each device is specified over the -40°C to +85°C extended temperature range. Contact factory for other programmed output voltage versions from 1.5V to 3.3V in 100mV increments.

For pin-compatible 250mA versions of this device, refer to the MAX4834/MAX4835. For pin-compatible 500mA versions of this device, refer to the MAX4836/MAX4837.

Key Features   Applications/Uses
  • Guaranteed Minimum 100mA Load Current
  • Accurate Current Limit
  • Preset Output Voltages: 1.8V/2.5V/2.8V/3.0V/3.3V
  • 2.5V to 5.5V Supply Voltage Range
  • Adjustable Soft-Start
  • Low Dropout Voltage
  • Thermal Shutdown
  • Reverse-Current Protection
  • Shutdown Output Discharge (MAX4833)
  • Low 90µA Supply Current
  • Ultra-Low 0.1µA Shutdown Current
  • FLAG-bar and Latch Off (MAX4832) or RESET-bar (MAX4833)
  • Tiny SOT23 and TDFN Packages

     
  • Cell Phones
  • Global Positioning Systems (GPS)
  • Notebook Computers
  • PDAs and Palmtop Devices
  • SDIO Ports and Devices
  • USB Ports and Devices

    Key Specifications:   Current Limit Switches
    Part Number Current Limit (mA) Functions Max. Load Current (A) RON (typ) (Ω) Switch Op. Voltage Range (V) Fault Indicator Fault Blanking Timeout (ms) Operating Temp. Range (°C)
    MAX4832  100
    FLAG function
    0.1 0.75 2.5 to 5.5 Yes 10 -40 to +85
    MAX4833 
    Reset
    No  - 
    See All Current Limit Switches (27)

    Evaluation Kits
    none

    Design Guides
  • MUX & SWITCH (PDF)

    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: 1-32 of 32

    MAX4832 Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX4832ETT33C+  
    THIN QFN (Dual);6 pin;10 mm²
    Dwg: 21-0137I (PDF)
    Use pkgcode/variation: T633+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4832ETT33C+T  
    THIN QFN (Dual);6 pin;10 mm²
    Dwg: 21-0137I (PDF)
    Use pkgcode/variation: T633+2*
    -40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4832ETT33C  
    THIN QFN (Dual);6 pin;10 mm²
    Dwg: 21-0137I (PDF)
    Use pkgcode/variation: T633-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4832ETT30C  
    THIN QFN (Dual);6 pin;10 mm²
    Dwg: 21-0137I (PDF)
    Use pkgcode/variation: T633-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4832ETT28C  
    THIN QFN (Dual);6 pin;10 mm²
    Dwg: 21-0137I (PDF)
    Use pkgcode/variation: T633-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4832ETT25C  
    THIN QFN (Dual);6 pin;10 mm²
    Dwg: 21-0137I (PDF)
    Use pkgcode/variation: T633-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4832ETT18C  
    THIN QFN (Dual);6 pin;10 mm²
    Dwg: 21-0137I (PDF)
    Use pkgcode/variation: T633-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4832ETT18C-T  
    THIN QFN (Dual);6 pin;10 mm²
    Dwg: 21-0137I (PDF)
    Use pkgcode/variation: T633-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4832ETT25C-T  
    THIN QFN (Dual);6 pin;10 mm²
    Dwg: 21-0137I (PDF)
    Use pkgcode/variation: T633-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4832ETT28C-T  
    THIN QFN (Dual);6 pin;10 mm²
    Dwg: 21-0137I (PDF)
    Use pkgcode/variation: T633-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4832ETT30C-T  
    THIN QFN (Dual);6 pin;10 mm²
    Dwg: 21-0137I (PDF)
    Use pkgcode/variation: T633-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4832ETT33C-T  
    THIN QFN (Dual);6 pin;10 mm²
    Dwg: 21-0137I (PDF)
    Use pkgcode/variation: T633-2*
    -40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4833 Free
    Sample
    Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX4833ETT18D4-T  



    -40°C to +85°C See data sheet
    MAX4833ETT33D1-T  



    -40°C to +85°C See data sheet
    MAX4833ETT33D2-T  



    -40°C to +85°C See data sheet
    MAX4833ETT33D3-T  



    -40°C to +85°C See data sheet
    MAX4833ETT33D4-T  



    -40°C to +85°C See data sheet
    MAX4833ETT18D2-T  



    -40°C to +85°C See data sheet
    MAX4833ETT18D1-T  



    -40°C to +85°C See data sheet
    MAX4833ETT30D4-T  



    -40°C to +85°C See data sheet
    MAX4833ETT30D3-T  



    -40°C to +85°C See data sheet
    MAX4833ETT25D1-T  



    -40°C to +85°C See data sheet
    MAX4833ETT25D2-T  



    -40°C to +85°C See data sheet
    MAX4833ETT25D3-T  



    -40°C to +85°C See data sheet
    MAX4833ETT25D4-T  



    -40°C to +85°C See data sheet
    MAX4833ETT28D1-T  



    -40°C to +85°C See data sheet
    MAX4833ETT28D2-T  



    -40°C to +85°C See data sheet
    MAX4833ETT28D3-T  



    -40°C to +85°C See data sheet
    MAX4833ETT18D3-T  



    -40°C to +85°C See data sheet
    MAX4833ETT30D1-T  



    -40°C to +85°C See data sheet
    MAX4833ETT30D2-T  



    -40°C to +85°C See data sheet
    MAX4833ETT28D4-T  



    -40°C to +85°C See data sheet

    Related Products
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    Document Ref.: 19-3372; Rev 0; 2004-08-04
    This page last modified: 2004-08-10



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