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LT3462A - 典型应用图例：

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LINEAR凌力尔特芯片：

LT3462A - LT3462A是Inverting 1.2MHz/2.7MHz DC/DC Converters with Integrated Schottky in ThinSOT

LT3462A是LINEAR凌力尔特公司的一款负输出稳压器产品，LT3462A是LT3462A是Inverting 1.2MHz/2.7MHz DC/DC Converters with Integrated Schottky in ThinSOT，本站介绍了LT3462A的封装应用图解、特点和优点、功能等，并给出了与LT3462A相关的LINEAR元器件型号供参考。

LT3462A - LT3462A是Inverting 1.2MHz/2.7MHz DC/DC Converters with Integrated Schottky in ThinSOT - 负输出稳压器 - 电源管理 - 凌力尔特

LT3462A - Inverting 1.2MHz/2.7MHz DC/DC Converters with Integrated Schottky in ThinSOT

LT3462 - Inverting 1.2MHz/2.7MHz DC/DC Converters with Integrated Schottky in ThinSOT - Linear Technology（凌力尔特）

功能描述

The LT?3462/LT3462A are general purpose fixed frequencycurrent mode inverting DC/DC converters. Bothdevices feature an integrated Schottky and a low VCESATswitch allowing a small converter footprint and lower partscost. The LT3462 switches at 1.2MHz while the LT3462Aswitches at 2.7MHz. These high speeds enable the use oftiny, low cost and low height capacitors and inductors.

The LT3462/LT3462A operate in a dual inductor invertingtopology that filters both the input and output currents.Very low output voltage ripple approaching 1mVP-P can beachieved when ceramic capacitors are used. Fixed frequencyswitching ensures a clean output free from lowfrequency noise typically present with charge pump solutions.The 40V switch allows a VIN to VOUT differential ofup to 38V for dual inductor topologies.

Both devices provide a low impedance 1.265V referenceoutput to supply the feedback resistor network. A groundreferenced, high impedance FB input allows high feedbackresistor values without compromising output accuracy.

The LT3462/LT3462A are available in a 6-lead SOT-23package.

特点

Integrated Schottky Rectifier

Fixed Frequency 1.2MHz/2.7MHz Operation

Very Low Noise: 1mVP-P Output Ripple

Low VCESAT Switch: 270mV at 250mA

±5V at 100mA from 5V Input

?12V at 30mA from 3.3V Input

Low Input Bias Current GND Based FB Input

Low Impedance (40 Ohm) 1.265V Reference Output

High Output Voltage: Up to ?38V

Wide Input Range: 2.5V to 16V

Uses Tiny Surface Mount Components

Low Shutdown Current: <10µA

Low Profile (1mm) SOT-23 (ThinSOT™) Package

应用

CCD Bias

LCD Bias

GaAs FET Bias

General Purpose Negative Voltage Supply

以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）

器件型号	封装	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量)
LT3462AES6	SOT-23	E	$2.50
LT3462AES6#PBF	SOT-23	E	$2.50
LT3462AES6#TR	SOT-23	E	$2.50	$2.11
LT3462AES6#TRM	SOT-23	E	$2.50	$2.13
LT3462AES6#TRMPBF	SOT-23	E	$2.50	$2.13
LT3462AES6#TRPBF	SOT-23	E	$2.50	$2.11
LT3462ES6	SOT-23	E	$2.50
LT3462ES6#PBF	SOT-23	E	$2.50
LT3462ES6#TR	SOT-23	E	$2.50	$2.11
LT3462ES6#TRM	SOT-23	E	$2.50	$2.13
LT3462ES6#TRMPBF	SOT-23	E	$2.50	$2.13
LT3462ES6#TRPBF	SOT-23	E	$2.50	$2.11

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