MAX8640Z

PRODUCTION

Tiny 500mA, 4MHz/2MHz Synchronous Step-Down DC-DC Converters

Smallest 2mm x 2.1mm SC70 Package, the Industry's Smallest Total Solution Size, and Most Robust 4MHz/2MHz Step-Down DC-DC Converters on the Market that Can Deliver 500mA with Over 93% Efficiency

Part Models
5
1ku List Price
Starting From $2.62
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Part Details

  • Tiny SC70 and µDFN Packages
  • 500mA Guaranteed Output Current
  • 4MHz or 2MHz PWM Switching Frequency
  • Tiny External Components: 1µH/2.2µF or 2.2µH/4.7µF
  • 28µA Quiescent Current
  • Factory Preset Outputs from 0.8V to 2.5V
  • ±1% Initial Accuracy
  • Low Output Ripple at All Loads
  • Ultrasonic Skip Mode Down to 1mA Loads
  • Ultra-Fast Line- and Load-Transient Response
  • Fast Soft-Start Eliminates Inrush Current
MAX8640Z
Tiny 500mA, 4MHz/2MHz Synchronous Step-Down DC-DC Converters
MAX8640Y, MAX8640Z: Typical Operating Circuit
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Documentation

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Hardware Ecosystem

Parts Product Life Cycle Description
Internal Power Switch Buck Regulators 3
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Evaluation Kits

MAX8640EVKIT

MAX8640 Evaluation Kit

Features and Benefits

  • Tiny 6-Pin SC70 IC Package
  • 500mA Guaranteed Output Current
  • Tiny External Components: (1µH/2.2µF or 2.2µH/4.7µF)
  • 24µA Quiescent Current
  • ±1% Initial Accuracy
  • Ultra-Fast Line and Load Transient Response
  • Low Output Ripple at All Loads
  • Fully Assembled and Tested

Product Details

The MAX8640 evaluation kit (EV kit) is a fully assembled and tested circuit for evaluating the MAX8640 step-down DC-DC converter. The MAX8640 EV kit operates from a 2.7V to 4.9V supply and provides a 500mA output. The 1.8V/2MHz version of the MAX8640 comes installed in the EV kit, but the same board can be used to evaluate the other versions. The MAX8640 is available with factory preset output voltages ranging from 0.8V to 2.5V.

Applications

  • Cell Phones, PDAs, DSCs, MP3s
  • I/O Power
  • Microprocessor/DSP Core Power
  • Other Handhelds Where Space Is Limited

MAX8640EVKIT
MAX8640 Evaluation Kit

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