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Maxim > Products > [Power and Battery Management]  [Automotive] 
MAX1615, MAX1616
High-Voltage, Low-Power Linear Regulators for Notebook Computers

High-Input-Voltage, Low-Cost, Low-Power, Low-Dropout Linear Regulators for Notebooks in SOT23-5


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Data Sheet
FULL DATA SHEET (PDF, 112kB)
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Description
The MAX1615/MAX1616 are micropower, SOT23-5 linear regulators that supply always-on, keep-alive power to CMOS RAM and microcontrollers (µCs) in systems with high-voltage batteries. Key features include wide input voltage range, low dropout voltage, and low quiescent supply current.

Despite a miserly 8µA (max) no-load supply current, the MAX1615/MAX1616 have excellent line-transient response and AC power-supply rejection ratio. They provide a clean, fixed 5V or 3.3V output (MAX1615) or an adjustable 1.24V to 28V output (MAX1616), even when subjected to fast supply-voltage changes that occur during the switchover from battery to AC adapter input power. The space-saving SOT23-5 package has excellent thermal characteristics and tolerates up to 571mW of power dissipation. Fault protection is provided by internal foldback current limiting and thermal-shutdown circuitry. The MAX1615/MAX1616 are now available in lead-free packages.

Key Features   Applications/Uses
  • 4V to 28V Input Range
  • 8µA (max) Quiescent Supply Current
  • <1µA Shutdown Supply Current
  • 3.3V or 5V, Pin-Selectable Output (MAX1615) Adjustable 1.24V to 28V Output (MAX1616)
  • 30mA Output Current
  • ±2% Initial Output Accuracy
  • Thermal-Overload Protection
  • 5-Pin SOT23 Package
  • Low Cost

 
  		• Battery-Powered Systems
  		• CMOS/RTC Backup Power
  		• Microcontroller Power
  		• Notebook Computers
  		• PDAs and Handy-Terminals
  		• Smart Battery Packs/Chargers

    Key Specifications:   Linear Regulators
    Part Number Regulators per Pkg. Min. VIN (V) Max. VIN (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 Watchdog Reverse Battery Protection Package Smallest Available Package (max w/pins) (mm2) Operating Temp. Range (°C) Price**
    MAX1615  1 4 28 3.3 5 0.35 30 8 No No No SOT/5 9 -40 to +85 $0.79 @ 1k
    MAX1616  1.24 28 $0.79 @ 1k
    See All Linear Regulators (145)
    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
    MAX1615, MAX1616: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  		• Application Note 295: Emitter-Follower Boosts Linear Regulator's Output Current - MAX1616
  		• Application Note 761: Automatic Test Equipment on a Budget - MAX1615
  		• Application Note 843: Industrial 0V to +10V Digital Potentiometer - MAX1615
  		• Application Note 1791: Inductorless Voltage Converter Boosts a Single Lithium Cell - MAX1615
  		• Application Note 1873: 4mA–20mA Loop Powered Temperature Sensor - MAX1615
  		• Application Note 2015: Overcurrent/Overdischarge Protection for Lead-Acid Batteries - MAX1615
  		• Application Note 2765: Flexible Fault Protection - MAX1615
  		• Application Note 4405: Spare Op Amp Generates Its Own Regulated Negative Supply - MAX1615

    Evaluation Kits
    none

    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: 1-8 of 8

    MAX1615 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX1615EUK+  
    		SOT;5 pin;9 mm²
    Outline Drawing: 21-0057 (PDF)
    Land Pattern: 90-0174 (PDF)
    Use pkgcode/variation: U5+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1615EUK  
    		SOT;5 pin;9 mm²
    Outline Drawing: 21-0057 (PDF)
    Land Pattern: 90-0174 (PDF)
    Use pkgcode/variation: U5-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1615EUK-T  
    		SOT;5 pin;9 mm²
    Outline Drawing: 21-0057 (PDF)
    Land Pattern: 90-0174 (PDF)
    Use pkgcode/variation: U5-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1615EUK+T  
    		SOT;5 pin;9 mm²
    Outline Drawing: 21-0057 (PDF)
    Land Pattern: 90-0174 (PDF)
    Use pkgcode/variation: U5+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1616 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX1616EUK+  
    		SOT;5 pin;9 mm²
    Outline Drawing: 21-0057 (PDF)
    Land Pattern: 90-0174 (PDF)
    Use pkgcode/variation: U5+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX1616EUK  
    		SOT;5 pin;9 mm²
    Outline Drawing: 21-0057 (PDF)
    Land Pattern: 90-0174 (PDF)
    Use pkgcode/variation: U5-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1616EUK-T  
    		SOT;5 pin;9 mm²
    Outline Drawing: 21-0057 (PDF)
    Land Pattern: 90-0174 (PDF)
    Use pkgcode/variation: U5-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX1616EUK+T  
    		SOT;5 pin;9 mm²
    Outline Drawing: 21-0057 (PDF)
    Land Pattern: 90-0174 (PDF)
    Use pkgcode/variation: U5+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    Notes and Comments
    • Excellent line transient response and AC power supply rejection ratio

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    Document Ref.: 19-1225; Rev 3; 2004-10-07
    This page last modified: 2007-05-31


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