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Maxim > Products > [Power and Battery Management] 
MAX8863R, MAX8863S, MAX8863T, MAX8864R, MAX8864S, MAX8864T
Low-Dropout, 120mA Linear Regulators

SOT23 Low-Noise, Low-Dropout Regulator


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Data Sheet
FULL DATA SHEET (PDF, 136kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX8863T/S/R and MAX8864T/S/R low-dropout linear regulators operate from a +2.5V to +6.5V input range and deliver up to 120mA. A PMOS pass transistor allows the low, 80µA supply current to remain independent of load, making these devices ideal for battery-operated portable equipment such as cellular phones, cordless phones, and modems.

The devices feature Dual Mode™ operation: their output voltage is preset (at 3.15V for the T versions, 2.84V for the S versions, or 2.80V for the R versions) or can be adjusted with an external resistor divider. Other features include low-power shutdown, short-circuit protection, thermal shutdown protection, and reverse battery protection. The MAX8864 also includes an auto-discharge function, which actively discharges the output voltage to ground when the device is placed in shutdown mode. Both devices come in a miniature 5-pin SOT23-5 package.

Key Features   Applications/Uses
  • Low Cost
  • Low, 55mV Dropout Voltage @ 50mA IOUT
  • Low, 68µA No-Load Supply Current
  • Low, 80µA Operating Supply Current (even in dropout)
  • Low, 350µVRMS Output Noise
  • Miniature External Components
  • Thermal Overload Protection
  • Output Current Limit
  • Reverse Battery Protection
  • Dual Mode™ Operation: Fixed or Adjustable (1.25V to 6.5V) Output
  • Low-Power Shutdown

 
  		• Audio Systems
  		• Cordless Phones
  		• Electronic Planners
  		• Handheld Instruments (PDAs, Palmtops)
  		• Modems
  		• Palmtop Computers
  		• PCMCIA Cards
  		• PCS Telephones

    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 Watchdog Reverse Battery Protection Package Smallest Available Package (max w/pins) (mm2) Operating Temp. Range (°C) Price**
    MAX8863  1 2.5 5.5 2.8
    2.84
    3.15     		1.25 5.5 0.13 120 170 No No Yes SOT/5 9 -40 to +85 $0.72 @ 1k
    MAX8864  $0.72 @ 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
    MAX8863R, MAX8863S, MAX8863T, MAX8864R, MAX8864S, MAX8864T: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  		• Application Note 668: Managing Noise in Cell-Phone Handsets - MAX8863
  		• Application Note 673: 5-to-1.8V Converter Works Without Magnetics - MAX8863
  		• Application Note 751: Linear Regulators in Portable Applications - MAX8863
  		• Application Note 1020: LDO Linear Regulator Improves White LED Brightness Matching - MAX8863
  		• Application Note 1767: USB-Powered DSL Modem Supply - MAX8863
  		• Application Note 1853: External Pass Transistor Lowers Dropout Voltage - MAX8863
  		• Application Note 2027: Simple Methods Reduce Input Ripple for All Charge Pumps - MAX8863, MAX8864
  		• Application Note 3014: LDO Improves White LED Current Matching - MAX8863
  		• Application Note 3202: 5V Auxiliary Power Supply Teams LDO and Charge Pump - MAX8863

    Evaluation Kits
    none

    Design Guides
  		• Power Management for Battery-Powered Equipment (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: 1-26 of 26

    MAX8863R Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX8863REUK+  
    		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
    MAX8863REUK  
    		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
    MAX8863REUK-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
    MAX8863REUK+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
    MAX8863S Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX8863SEUK+  
    		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
    MAX8863SEUK  
    		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
    MAX8863SEUK-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
    MAX8863SEUK+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
    MAX8863T Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX8863TEUK/V+  
    		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 See data sheet
    Materials Analysis
    MAX8863TEUK/V+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 See data sheet
    Materials Analysis
    MAX8863TEUK+  
    		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
    MAX8863TEUK  
    		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
    MAX8863TEUK-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
    MAX8863TEUK+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
    MAX8864R Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX8864REUK+  
    		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
    MAX8864REUK  
    		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
    MAX8864REUK-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
    MAX8864REUK+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
    MAX8864S Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX8864SEUK+  
    		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
    MAX8864SEUK  
    		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
    MAX8864SEUK-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
    MAX8864SEUK+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
    MAX8864T Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX8864TEUK+  
    		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
    MAX8864TEUK  
    		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
    MAX8864TEUK-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
    MAX8864TEUK+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

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     Description 
     Key Features 
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     Diagram 

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     Engineering Journals 
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    Document Ref.: 19-0466; Rev 2; 1998-11-01
    This page last modified: 2007-05-30


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