ADPL21210

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

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ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许，也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。
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概述

  • 2.1MHz Switching Frequency
  • Low VCESAT Switch: 330mV at 1.1A
  • High Output Voltage: Up to 24V
  • Wide Input Range: 2.7V to 12V
  • 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 ADPL21210 switching regulators combine a 26V, 1.1A switch with a soft-start function. The ADPL21210 switches at 2.1MHz, allowing the use of even smaller components. High inrush current at start-up is eliminated using the programmable soft-start function. A single external capacitor sets the current ramp rate. A constantfrequency current mode pulse-width modulator (PWM) architecture results in low, predictable output noise that is easy to filter.

The high-voltage switch on the ADPL21210 is rated at 26V, making the devices ideal for boost converters up to 24V, as well as SEPIC and flyback designs. The ADPL21210 is available in a low-profile (1mm) 6-lead Small outline transistor (SOT)‑23 package and tiny 3mm × 2mm DFN package.
ADPL21210
1.1A Step-Up DC/DC Converter with Integrated Soft-Start
ADPL21210 Typical Application ADPL21210 Efficiency ADPL21210 Pin Configuration ADPL21210 Pin Configuration ADPL21210 Chip Illustration
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EVAL-ADPL21210-AZ

ADPL21210 | 2.1MHz, SOT-23 DC/DC Converter

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产品详情

Evaluation circuit EVAL-ADPL21210-AZ is a 2.1MHz, SOT-23 DC/DC converter featuring the ADPL21210. The Boost Circuit is designed to convert a 5V input to a 12V output at 300mA maximum load. The EVALADPL21210- AZ is designed to demonstrate the soft-start feature, advantages of the 2.1MHz switching frequency, the internal 2.1MHz/1.1A switch, wide input voltage range and small circuit size. The EVAL-ADPL21210-AZ is intended for space-conscious applications such as digital cameras, cellular phones, palmtop computers, and liquid crystal display (LCD) displays. The 2.1MHz switching frequency, 1.1A integrated switch, small circuit size, and low All registered trademarks and trademarks are the property of their respective owners. component count make the ADPL21210 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 ADPL21210 data sheet before using or making any hardware changes to the EVAL-ADPL21210-AZ evaluation board.

Design files for this circuit board are available.
EVAL-ADPL21210-AZ
ADPL21210 | 2.1MHz, SOT-23 DC/DC Converter
EVAL-ADPL21210 Evaluation Board Angle View EVAL-ADPL21210 Evaluation Board Top View EVAL-ADPL21210 Evaluation Board Bottom View

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