MAX8506
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MAX8506

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

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

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1ku List Price Starting From $2.68
Features
  • 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)
Additional Details
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The MAX8506/MAX8507/MAX8508 integrate a PWM step-down DC-DC regulator and a 75mΩ (typ) bypass FET to power the PA in WCDMA and cdmaOne™ cell phones. The supply voltage range is from 2.6V to 5.5V, and the guaranteed output current is 600mA. One megahertz PWM switching allows for small external components.

The MAX8506 and MAX8507 are dynamically controlled to provide varying output voltages from 0.4V to 3.4V. The MAX8508 is externally programmed for fixed 0.75V to 3.4V output. Digital logic enables a high-power (HP) bypass mode that connects the output directly to the battery for all versions. The MAX8506/MAX8507/MAX8508 are designed so the output settles in less than 30µs for a full-scale change in output voltage and load current.

The MAX8506/MAX8507/MAX8508 are offered in 16-pin 4mm x 4mm thin QFN packages (0.8mm max height).

Applications

  • WCDMA/NCDMA Cell Phones
  • Wireless Modems
  • Wireless PDAs, Palmtops, and Notebook Computers
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Part Models 2
1ku List Price Starting From $2.68
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MAX8506

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Data Sheet

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UPDATED 02/03/2004
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MAX8506-MAX8508: PWM Step-Down DC-DC Converters with 75mΩ Bypass FET for WCDMA and cdmaOne Handsets Data Sheet (Rev.1)

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UPDATED 01/01/1900
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4008: 带有75mΩ旁路FET的PWM降压型DC-DC转换器，适用于WCDMA和cdmaOne手机 Data Sheet

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UPDATED 01/01/1900
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4008: WCDMAおよびcdmaOneハンドセット用75mΩバイパスFET付き、PWMステップダウンDC-DCコンバータ Data Sheet

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Reliability Data

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UPDATED 01/12/2023
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MAX8506 Reliability Data redirect icon

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Design Note

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UPDATED 03/24/2005
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RF Power Reduction for CDMA/WCDMA Cellular Phones redirect icon

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UPDATED 03/24/2005
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降低CDMA/WCDMA蜂窝电话的射频功耗\r\n\r\n redirect icon

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UPDATED 09/12/2005
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CDMA/WCDMA携帯電話のRF電力の低減 redirect icon

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Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX8506ETE+ 16-LFCSP-4X4X0.75 external-link
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MAX8506ETE+T 16-LFCSP-4X4X0.75 external-link
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Jun 20, 2016

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Parts Product Life Cycle Description

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Evaluation Kits 1

MAX8506EVKIT

Evaluation Kit for the MAX8506, MAX8507, MAX8508

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MAX8506EVKIT

Evaluation Kit for the MAX8506, MAX8507, MAX8508

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MAX8506EVKIT
Evaluation Kit for the MAX8506, MAX8507, MAX8508

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
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Product Detail

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

Evaluation Kits1

MAX8506EVKIT

Evaluation Kit for the MAX8506, MAX8507, MAX8508

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