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Maxim > Products > Supervisors, Voltage Monitors, Sequencers  Automotive 
MAX6791, MAX6792, MAX6793, MAX6794, MAX6795, MAX6796
High-Voltage, Micropower, Single/Dual Linear Regulators with Supervisory Functions

Automotive Linear Regulators with Supervisory Features


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Data Sheet
FULL DATA SHEET (PDF, 3.5MB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX6791–MAX6796 ultra-low-quiescent-current, single-/dual-output linear regulators are ideal for automotive applications. The devices offer a wide 5V to 72V operating input range, allowing them to withstand automotive load-dump conditions while consuming only 68µA. The MAX6791–MAX6794 are dual-output regulators capable of supplying up to 150mA per output. The MAX6795/MAX6796 offer a single output capable of delivering up to 300mA. These devices offer standard output-voltage options (5V, 3.3V, 2.5V, or 1.8V) and can be adjusted to any voltage from 1.8V to 11V. The MAX6791–MAX6794 also offer a fixed 5V output.

All devices feature a push-pull or open-drain, active-low RESET output with a fixed output reset threshold that is 92.5%/87.5% of the regulator output OUT/OUT1. The reset output asserts low when OUT/OUT1 drops below the reset threshold and remains low for the fixed or capacitor-adjustable reset timeout period after OUT/OUT1 exceeds the reset threshold.

The MAX6791–MAX6796 provide a watchdog input that monitors a pulse train from the microprocessor (µP) and generates reset pulses if the watchdog input remains high or low for a duration longer than the watchdog timeout period. All devices are available with either a fixed watchdog timeout period of 280ms (min) or a period adjustable with an external capacitor. The MAX6791/MAX6792 feature a windowed watchdog timeout period with selectable window ratio. The watchdog feature can be disabled.

The MAX6791–MAX6794 provide dual enable inputs (ENABLE1 and ENABLE2) that control each regulator independently. The single-output MAX6795/MAX6796 feature one enable input (ENABLE).

All devices include a hold input (active-low HOLD) that aids the implementation of a self-holding circuit without requiring external components. Once the regulator is enabled, setting active-low HOLD low forces the regulator to remain on even if ENABLE/ENABLE1 is subsequently set low. Releasing active-low HOLD shuts down the regulator.

The MAX6791–MAX6796 are available in a small, thermally enhanced TQFN package. The 5mm x 5mm package dissipates up to 2.7W, supporting continuous regulator operation during high ambient temperatures, high battery voltage, and high load-current conditions.

The MAX6791–MAX6796 are specified for a -40°C to +125°C operating temperature range.

Key Features   Applications/Uses
  • Low 68µA Quiescent Current
  • Wide 5V to 72V Supply Voltage Range
  • Output Current
    • Single Output Up to 300mA
    • Dual Outputs Up to 150mA per Output
  • Low Dropout Voltage
    • 420mV (typ) at 100mA (Single)
    • 840mV (typ) at 100mA (Dual)
  • Fixed Output-Voltage Options: 5V, 3.3V, 2.5V, 1.8V, or Adjustable Output (from 1.8V to 11V)
  • ENABLE and HOLD Functionality
  • Active-Low RESET Output: Open Drain or Push-Pull
  • Internally Fixed (35µs, 3.125ms, 12.5ms, 50ms, or 200ms) or Capacitor-Adjustable Reset Timeout Periods
  • Internally Fixed or Capacitor-Adjustable Watchdog Timeout Periods
  • Windowed (Minimum/Maximum) Watchdog Timer Options (MAX6791/MAX6792)
  • Watchdog Disable Feature Thermal, Short-Circuit, and Output Overvoltage Protection
  • Fully Specified from -40°C to +125°C
  • Small, Thermally Enhanced, 5mm x 5mm TQFN

 
  		• Automotive

    Key Specifications:   Linear Regulators
    Part Number Regulators per Pkg. Min. VIN (V) Max. VIN (V) Preset VOUT (V) Min. Adjustable VOUT (V) Max. Adjustable VOUT (V) Typ. VDROPOUT@ Rated ILOAD (V) Rated ILOAD (mA) Max. ICC (µA) Low Battery/ Power Fail Output POK/ Reset Output POK/ Reset Output Type Nominal POK/Reset Threshold (V) Min. Reset Pulse Width (ms) Watchdog Reverse Battery Protection Industry Qualified Package Smallest Available Package (max w/pins) (mm2) Operating Temp. Range (°C) Price**
    MAX6791  2 5 72 1.8
    2.5
    3.3
    5.0     		1.8 11 1 150 85 Yes Reset Open Drain Active Low Vout-12.5%
    Vout-7.5%     		140
    2
    35
    9     		Yes Yes Automotive - General THIN QFN/20 26 -40 to +125 $1.58 @ 1k
    MAX6792  2 1 150 Push-Pull Active Low $1.58 @ 1k
    MAX6793  2 1 150 Open Drain Active Low $1.49 @ 1k
    MAX6794  2 1 150 Push-Pull Active Low $1.49 @ 1k
    MAX6795  1 1.2 300 Open Drain Active Low $1.24 @ 1k
    MAX6796  1 1.2 300 Push-Pull Active Low $1.24 @ 1k
    See All Linear Regulators (137)
    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.

    Diagram
    MAX6791, MAX6792, MAX6793, MAX6794, MAX6795, MAX6796: Typical Application Circuit
    Typical Application Circuit

    Application Notes
  		• Application Note 3928: Automotive Linear Regulators Minimize Quiescent Current - MAX6791, MAX6792

    Evaluation Kits
  		• MAX6791EVKIT

    Design Guides
  		• MICROPROCESSOR SUPERVISORY (PDF)
  		• AUTOMOTIVE (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: 1-480 of 480

    MAX6791 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX6791TPVD4+T  



    		-40°C to +125°C See data sheet
    MAX6791TPTD1+T  



    		-40°C to +125°C See data sheet
    MAX6791TPWD4+T  



    		-40°C to +125°C See data sheet
    MAX6791TPTD0+T  



    		-40°C to +125°C See data sheet
    MAX6791TPYD0+T  



    		-40°C to +125°C See data sheet
    MAX6791TPYD1+T  



    		-40°C to +125°C See data sheet
    MAX6791TPYD2+T  



    		-40°C to +125°C See data sheet
    MAX6791TPSD1+T  



    		-40°C to +125°C See data sheet
    MAX6791TPYD3+T  



    		-40°C to +125°C See data sheet
    MAX6791TPTD2+T  



    		-40°C to +125°C See data sheet
    MAX6791TPWD3+T  



    		-40°C to +125°C See data sheet
    MAX6791TPTD3+T  



    		-40°C to +125°C See data sheet
    MAX6791TPWD0+T  



    		-40°C to +125°C See data sheet
    MAX6791TPVD3+T  



    		-40°C to +125°C See data sheet
    MAX6791TPVD2+T  



    		-40°C to +125°C See data sheet
    MAX6791TPWD1+T  



    		-40°C to +125°C See data sheet
    MAX6791TPVD1+T  



    		-40°C to +125°C See data sheet
    MAX6791TPVD0+T  



    		-40°C to +125°C See data sheet
    MAX6791TPWD2+T  



    		-40°C to +125°C See data sheet
    MAX6791TPTD4+T  



    		-40°C to +125°C See data sheet
    MAX6791TPSD0+T  



    		-40°C to +125°C See data sheet
    MAX6791TPZD4+T  



    		-40°C to +125°C See data sheet
    MAX6791TPMD0+T  



    		-40°C to +125°C See data sheet
    MAX6791TPZD1+T  



    		-40°C to +125°C See data sheet
    MAX6791TPLD4+T  



    		-40°C to +125°C See data sheet
    MAX6791TPLD3+T  



    		-40°C to +125°C See data sheet
    MAX6791TPZD2+T  



    		-40°C to +125°C See data sheet
    MAX6791TPZD3+T  



    		-40°C to +125°C See data sheet
    MAX6791TPLD1+T  



    		-40°C to +125°C See data sheet
    MAX6791TPLD0+T  



    		-40°C to +125°C See data sheet
    MAX6791TPMD1+T  



    		-40°C to +125°C See data sheet
    MAX6791TPZD0+T  



    		-40°C to +125°C See data sheet
    MAX6791TPMD3+T  



    		-40°C to +125°C See data sheet
    MAX6791TPMD4+T  



    		-40°C to +125°C See data sheet
    MAX6791TPMD2+T  



    		-40°C to +125°C See data sheet
    MAX6791TPYD4+T  



    		-40°C to +125°C See data sheet
    MAX6791TPZD4+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPWD1+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPYD3+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPZD3+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPWD2+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPYD0+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPYD2+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPZD2+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPWD3+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPZD0+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPYD1+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPWD4+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPZD1+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPYD4+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPWD0+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPLD0+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPSD1+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPSD0+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPMD4+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPMD3+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPMD2+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPMD1+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPMD0+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPLD4+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPLD3+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6791TPLD2+T  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6791TPLD2+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6791TPLD1+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6791TPSD2+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6791TPSD2+T  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6791TPSD3+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6791TPVD4+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPVD3+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPVD2+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPVD1+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPVD0+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPTD4+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPTD3+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPTD2+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6791TPSD3+T  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6791TPSD4+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6791TPSD4+T  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX6791TPTD0+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6791TPTD1+  
    		THIN QFN;20 pin;26 mm²
    Dwg: 21-0140L (PDF)
    Use pkgcode/variation: T2055+4*
    		-40°C to +125°C See data sheet
    Materials Analysis
    MAX6792 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX6792TPTD2+T  



    		-40°C to +125°C See data sheet
    MAX6792TPTD1+T  



    		-40°C to +125°C See data sheet
    MAX6792TPYD0+T  



    		-40°C to +125°C See data sheet
    MAX6792TPTD0+T  



    		-40°C to +125°C See data sheet
    MAX6792TPSD4+T  



    		-40°C to +125°C See data sheet
    MAX6792TPYD1+T  



    		-40°C to +125°C See data sheet
    MAX6792TPSD3+T  



    		-40°C to +125°C See data sheet
    MAX6792TPYD2+T  



    		-40°C to +125°C See data sheet
    MAX6792TPSD1+T  



    		-40°C to +125°C See data sheet
    MAX6792TPWD4+T  



    		-40°C to +125°C See data sheet
    MAX6792TPTD3+T  



    		-40°C to +125°C See data sheet
    MAX6792TPTD4+T  



    		-40°C to +125°C See data sheet
    MAX6792TPWD0+T  



    		-40°C to +125°C See data sheet
    MAX6792TPVD4+T  



    		-40°C to +125°C See data sheet
    MAX6792TPWD1+T  



    		-40°C to +125°C See data sheet
    MAX6792TPVD3+T  



    		-40°C to +125°C See data sheet
    MAX6792TPVD2+T  



    		-40°C to +125°C See data sheet
    MAX6792TPWD2+T  



    		-40°C to +125°C See data sheet
    MAX6792TPVD1+T  



    		-40°C to +125°C See data sheet
    MAX6792TPVD0+T  



    		-40°C to +125°C See data sheet
    MAX6792TPWD3+T  



    		-40°C to +125°C See data sheet
    MAX6792TPYD3+T  



    		-40°C to +125°C See data sheet
    MAX6792TPSD0+T  



    		-40°C to +125°C See data sheet
    MAX6792TPMD0+T  



    		-40°C to +125°C See data sheet
    MAX6792TPZD1+T  



    		-40°C to +125°C See data sheet
    MAX6792TPLD4+T  



    		-40°C to +125°C See data sheet
    MAX6792TPLD3+T  



    		-40°C to +125°C See data sheet
    MAX6792TPZD2+T  



    		-40°C to +125°C See data sheet
    MAX6792TPZD3+T