ADPL21610

RECOMMENDED FOR NEW DESIGNS

1.1A Step-Up DC/DC Converter with Integrated Soft-Start

Data Sheet (Rev. 0) Product Selection Table
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Overview

  • 1.3MHz Switching Frequency
  • Low VCESAT Switch: 330mV at 1.1A
  • High Output Voltage: Up to 40V
  • Wide Input Range: 2.7V to 16V
  • Dedicated Soft-Start Pin
  • Uses Small Surface Mount Components
  • Low Shutdown Current: <1μA
  • Low Profile (1mm) ThinSOT™ Package
  • Low Profile (0.75mm) 8-Lead (3mm × 2mm) Dual Flat No Lead (DFN) Package

The ADPL21610 switching regulators combine a 42V, 1.1A switch with a soft-start function. The ADPL21610 switches at 1.3MHz, allowing the use of tiny, low-cost and low-height inductors and capacitors. High inrush current at start-up is eliminated using the programmable soft-start function. A single external capacitor sets the current ramp rate. A constant-frequency current mode pulse-width modulator (PWM) architecture results in low, predictable output noise that is easy to filter.

The high-voltage switch on the ADPL21610 is rated at 42V, making the devices ideal for boost converters up to 40V, as well as SEPIC and flyback designs. The ADPL21610 is available in a low-profile (1mm) 6-lead Small outline transistor (SOT)‑23 package and tiny 3mm × 2mm DFN package.

APPLICATIONS

  • Digital Cameras
  • White LED Power Supplies
  • Cellular Phones
  • Medical Diagnostic Equipment
  • Local 5V or 12V Supplies
  • Thin Film Transistor (TFT)- Liquid Crystal Display (LCD) Bias Supplies
  • x Digital Subscriber Line (xDSL) Power Supplies
ADPL21610
1.1A Step-Up DC/DC Converter with Integrated Soft-Start
ADPL21610 Typical Application ADPL21610 Efficiency ADPL21610 Pin Configuration ADPL21610 Pin Configuration ADPL21610 Chip Illustration
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Documentation

Data Sheet 1

User Guide 1

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Evaluation Kits

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EVAL-ADPL21610-AZ

ADPL21610 | 1.2MHz, SOT-23 DC/DC Converter

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Product Details

Evaluation circuit EVAL-ADPL21610-AZ is a 1.2MHz, SOT-23 DC/DC converter featuring the ADPL21610. The Boost Circuit is designed to convert a 5V input to a 12V output at 300mA maximum load. The EVALADPL21610- AZ is designed to demonstrate the soft-start feature, advantages of the 1.2MHz switching frequency, the internal 42V/1.1A switch, wide input voltage range and small circuit size. The EVAL-ADPL21610-AZ is intended for space-conscious applications such as digital cameras, cellular phones, palmtop computers, and liquid crystal display (LCD) displays. The 1.2MHz switching frequency, 1.1A integrated switch, small circuit size, and All registered trademarks and trademarks are the property of their respective owners. low component count make the ADPL21610 suitable for use in many other applications, such as PC cards, miniature disk drives, variable digital subscriber line (xDSL) power supplies, flash memory products, and local 5V or 12V supplies.

Read the ADPL21610 data sheet before using or making any hardware changes to the EVAL-ADPL21610-AZ evaluation board.

Design files for this circuit board are available.
EVAL-ADPL21610-AZ
ADPL21610 | 1.2MHz, SOT-23 DC/DC Converter
EVAL-ADPL21610 Evaluation Board Angle View EVAL-ADPL21610 Evaluation Board Top View EVAL-ADPL21610 Evaluation Board Bottom View

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