ENGLISH • 简体中文 • 日本語 • 한국어  


     
    
    
    
 

WHAT'S NEW PRODUCTS SOLUTIONS DESIGN APPNOTES SUPPORT BUY COMPANY MEMBERS
Maxim > Products > Power and Battery Management 
MAX8560, MAX8561, MAX8562
4MHz, 500mA Synchronous Step-Down DC-DC Converters in Thin SOT and TDFN

First 4MHz Step-Down DC-DC Converters Deliver 500mA with Over 90% Efficiency in SOT23 and TDFN


  QuickView     Technical Documents     Ordering Info     More Information     User Comments (0)     All  
Data Sheet
FULL DATA SHEET (PDF, 820kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail

Description
The MAX8560/MAX8561/MAX8562 step-down DC-DC converters are optimized for applications that prioritize small size and high efficiency. They utilize a proprietary hysteretic-PWM control scheme that switches with fixed frequency and is adjustable up to 4MHz, allowing customers to trade efficiency for smaller external components. Output current is guaranteed up to 500mA, while quiescent current is only 40µA (typ).

Internal synchronous rectification greatly improves efficiency and eliminates the external Schottky diode required in conventional step-down converters. Built-in soft-start eliminates inrush current to reduce input capacitor requirements. The MAX8561 features logic-controlled output voltage, while the MAX8562 drives an external bypass FET.

The MAX8560 is available in a 5-pin Thin SOT23 package. The MAX8561/MAX8562 are available in space-saving 8-pin 3mm x 3mm Thin DFN packages.

Key Features   Applications/Uses
  • Up to 4MHz PWM Switching Frequency
  • 500mA Guaranteed Output Current
  • 40µA (typ) Quiescent Current
  • Adjustable Output Voltage from 0.6V to 2.5V
  • Logic-Controlled Output Voltage (MAX8561)
  • Drives External Bypass FET (MAX8562)
  • ±1.5% Initial Accuracy
  • Soft-Start Eliminates Inrush Current
  • Fast Voltage-Positioning Transient Response
  • Internal Synchronous Rectifier
  • 2.7V to 5.5V Input
  • 0.1µA Logic-Controlled Shutdown
  • Thermal Shutdown
  • Thin SOT23 or Space-Saving 3mm x 3mm x 0.8mm TDFN Packages

 
  		• CDMA/RF Power-Amplifier Supplies
  		• Cell Phones/Smartphones
  		• Microprocessor/DSP Core Supplies
  		• PDAs, DSC, and MP3 Players

    Key Specifications:   Step-Down Switching Regulators
    Part Number VIN (min) (V) VIN (max) (V) Min. VOUT (V) Max. VOUT (V) IOUT (A) IOUT (A) Output Adj. Method Operating Current, ICC (max) (mA) Number of DC-DC Outputs Operating Freq. (kHz) Package Price**
    MAX8560  2.7 5.5 0.6 2.5 0.5 0.5 Resistor 0.08 1 4000 SOT-23/5 $1.63 @ 1k
    MAX8561  THIN QFN (Dual)/8 $1.85 @ 1k
    MAX8562  THIN QFN (Dual)/8 $1.85 @ 1k
    See All Step-Down Switching Regulators (222)
    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
    MAX8560, MAX8561, MAX8562: Typical Operating Circuit
    Typical Operating Circuit

    Application Notes
  		• Application Note 3603: Buck Converters Proliferate in Handhelds as Features and Processing Power Increase - MAX8560

    Evaluation Kits
  		• MAX8561EVKIT

    Reliability Reports
  		• Show FIT data for:
  		• Reliability Report: MAX8561ETA.pdf MAX8562ETA.pdf
  		• 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: 1-10 of 10

    MAX8560 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX8560EZK+  
    		SOT-23;5 pin;
    Dwg: 21-0113 (PDF)
    Use pkgcode/variation: Z5+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8560EZK  
    		SOT-23;5 pin;
    Dwg: 21-0113 (PDF)
    Use pkgcode/variation: Z5-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX8560EZK-T  
    		SOT-23;5 pin;
    Dwg: 21-0113 (PDF)
    Use pkgcode/variation: Z5-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX8560EZK+T  
    		SOT-23;5 pin;
    Dwg: 21-0113 (PDF)
    Use pkgcode/variation: Z5+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8561 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX8561ETA  
    		THIN QFN (Dual);8 pin;
    Dwg: 21-0137 (PDF)
    Use pkgcode/variation: T833-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX8561ETA+  
    		TDFN;8 pin;
    Dwg: 21-0137 (PDF)
    Use pkgcode/variation: T833+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8561ETA-T  
    		THIN QFN (Dual);8 pin;
    Dwg: 21-0137 (PDF)
    Use pkgcode/variation: T833-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX8561ETA+T  
    		TDFN;8 pin;
    Dwg: 21-0137 (PDF)
    Use pkgcode/variation: T833+2*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX8562 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX8562ETA  
    		THIN QFN (Dual);8 pin;
    Dwg: 21-0137 (PDF)
    Use pkgcode/variation: T833-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX8562ETA-T  
    		THIN QFN (Dual);8 pin;
    Dwg: 21-0137 (PDF)
    Use pkgcode/variation: T833-2*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis

    More Information
  		• Topmark Coding: MAX8560 MAX8561 MAX8562
  		• New Product Press Release 2003-08-20 

    Related Products
    MAX1920, MAX1921 Low-Voltage, 400mA Step-Down DC-DC Converters in SOT23

    Didn't Find What You Need?
  • Next Day Product Selection Assistance from Applications Engineers
  • Parametric Search
  • Applications Help

    •  QuickView   Technical Documents   Ordering Info   More Information  
     Description 
     Key Features 
     Applications/Uses 
     Key Specifications 
     Diagram 

    		 Data Sheet 
     Application Notes 
     Design Guides 
     Engineering Journals 
     Reliability Reports 
     Software/Models 
     Evaluation Kits 

    		 Price and Availability 
     Samples 
     Buy Online 
     Package Information 
     Lead-Free Information 

    		 Related Products 
     Notes and Comments 
     Evaluation Kits 

    Document Ref.: 19-2954; Rev 2; 2005-10-13
    This page last modified: 2007-08-16




             


          Privacy Policy  •  Legal Notices

          Copyright © 2008 by Maxim Integrated Products, Dallas Semiconductor