MAX8507

PWM Step-Down DC-DC Converters with 75mΩ Bypass FET for WCDMA and cdmaOne Handsets

PWM Step-Down DC-DC Converters with 75mΩ Bypass FET for WCDMA and cdmaOne™ Handsets

Data Sheet (Rev. 1)
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Part Details

  • Integrated 75mΩ (typ) Bypass FET
  • 38mV Dropout at 600mA Load
  • Up to 94% Efficiency
  • Dynamically Adjustable Output from 0.4V to 3.4V (MAX8506, MAX8507)
  • Externally Fixed Output from 0.75V to 3.4V (MAX8508)
  • 1MHz Fixed-Frequency PWM Switching
  • 600mA Guaranteed Output Current
  • Shutdown Mode 0.1µA (typ)
  • 16-Pin Thin QFN (4mm x 4mm, 0.8mm max Height)
MAX8507
PWM Step-Down DC-DC Converters with 75mΩ Bypass FET for WCDMA and cdmaOne Handsets
MAX8506, MAX8507, MAX8508: Typical Operating Circuit
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Documentation

Data Sheet 1

Reliability Data 1

Design Note 1

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Hardware Ecosystem

Parts Product Life Cycle Description
Internal Power Switch Buck Regulators 4
MAX1927
PRODUCTION Low-Output-Voltage, 800mA, PWM Step-Down DC-DC Converters
MAX1928
PRODUCTION Low-Output-Voltage, 800mA, PWM Step-Down DC-DC Converters
MAX1820
Obsolete WCDMA Cellular Phone 600mA Buck Regulators
MAX1821
PRODUCTION WCDMA Cellular Phone 600mA Buck Regulators
Product 3
MAX8500
PWM Buck Converters with Bypass FET for N-CDMA/W-CDMA Handsets
MAX8503
PWM Buck Converters with Bypass FET for N-CDMA/W-CDMA Handsets
MAX8504
PWM Buck Converters with Bypass FET for N-CDMA/W-CDMA Handsets
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Evaluation Kits

MAX8506EVKIT

Evaluation Kit for the MAX8506, MAX8507, MAX8508

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Features and Benefits

  • 2.6V to 5.5V Input Voltage Range
  • 1MHz Fixed-Frequency PWM Switching
  • 600mA Output Current
  • Adjustable Output Voltages
    • 1.76 x REFIN (MAX8506)
    • 2 x REFIN (MAX8507)
    • Set by External Feedback Resistors (MAX8508)
  • Low 0.1µA (typ) Quiescent Current in Shutdown Mode
  • Surface-Mount Construction
  • Fully Assembled and Tested

Product Details

The MAX8506 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that demonstrates the MAX8506 1MHz pulse-width-modulated (PWM) step-down DC-DC converter optimized for powering the power amplifier (PA) in wireless applications. The EV kit can dynamically control the output voltage in the 0.4V to VIN range from a 2.6V to 5.5V input. It can deliver 600mA of load current. The MAX8506 EV kit can also be used to evaluate the MAX8507, which has a different gain, and the MAX8508, whose output can be externally programmed for fixed 0.75V to 3.4V.

Applications

  • WCDMA/NCDMA Cell Phones
  • Wireless Modems
  • Wireless PDAs, Palmtops, and Notebook Computers
MAX8506EVKIT
Evaluation Kit for the MAX8506, MAX8507, MAX8508

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