Datasheet > LT3470ETS8

LT3470ETS8

更新时间： 2024-11-30 04:19:35

品牌	Logo	应用领域
Linear Systems		调节器二极管开关光电二极管
页数	文件大小	规格书
16页	200K
描述
Micropower Buck Regulator with Integrated Boost and Catch Diodes

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LT3470ETS8 数据手册

LT3470

Micropower Buck Regulator

with Integrated Boost and

Catch Diodes

FEATURES

DESCRIPTIO

TheLT^®3470isamicropowerstep-downDC/DCconverter

that integrates a 300mA power switch, catch diode and

boost diode into a low profile (1mm) ThinSOT^TMpackage.

The LT3470 combines Burst Mode and continuous opera-

tion to allow the use of tiny inductor and capacitors while

providing a low ripple output to loads of up to 200mA.

■

Low Quiescent Current: 26µA at 12V_INto 3.3V_OUT

Integrated Boost and Catch Diodes

Input Range: 4V to 40V

Low Output Ripple: <10mV

<1µA in Shutdown Mode

■

Output Voltage: 1.25V to 16V

200mA Output Current

Hysteretic Mode Control

With its wide input range of 4V to 40V, the LT3470 can

regulate a wide variety of power sources, from 2-cell

Li-Ionbatteriestounregulatedwalltransformersandlead-

acid batteries. Quiescent current in regulation is just 26µA

in a typical application while a zero current shutdown

mode disconnects the load from the input source, simpli-

fying power management in battery-powered systems.

Fast current limiting and hysteretic control protects the

LT3470 and external components against shorted out-

puts, even at 40V input.

– Low Ripple Burst Mode^®Operation at Light Loads

– Continuous Operation at Higher Loads

Solution Size as Small as 50mm²

Low Profile (1mm) ThinSOT Package

■

APPLICATIO S

■

Automotive Battery Regulation

■

Power for Portable Products

■

Distributed Supply Regulation

, LTC and LT are registered trademarks of Linear Technology Corporation.

All other trademarks are the property of their respective owners.

Burst Mode is a registered trademark of Linear Technology Corporation.

ThinSOT is a trademark of Linear Technology Corporation.

■

Industrial Supplies

■

Wall Transformer Regulation

TYPICAL APPLICATIO

Efficiency and Power Loss vs Load Current

1000

100

= 12V

7V TO 40V

0.22µF

33µH

BOOST

LT3470

SHDN

OUT

OFF ON

200mA

BIAS

604k

22pF

22µF

2.2µF

GND

200k

0.1

100

LOAD CURRENT (mA)

3470 TA02

3470f

12 3 4 5 6 7...16

中文翻译

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与LT3470ETS8相关器件

型号	品牌	获取价格	描述	数据表
LT3470ETS8#PBF	Linear	获取价格	暂无描述
LT3470ETS8#TRM	Linear	获取价格	LT3470 - Micropower Buck Regulator with Integrated Boost and Catch Diodes; Package: SOT; P
LT3470ETS8#TRMPBF	Linear	获取价格	LT3470 - Micropower Buck Regulator with Integrated Boost and Catch Diodes; Package: SOT; P
LT3470ETS8#TRPBF	Linear	获取价格	LT3470 - Micropower Buck Regulator with Integrated Boost and Catch Diodes; Package: SOT; P
LT3470HDDB	Linear	获取价格	Micropower Buck Regulator with Integrated Boost and Catch Diodes
LT3470HDDB#PBF	Linear	获取价格	LT3470 - Micropower Buck Regulator with Integrated Boost and Catch Diodes; Package: DFN; P
LT3470HDDB#TRM	Linear	获取价格	IC 0.2 A SWITCHING REGULATOR, PDSO8, 3 X 2 MM, 0.75MM INCH HEIGHT, MO-229WECD-1, PLASTIC,
LT3470HDDB#TRMPBF	Linear	获取价格	LT3470 - Micropower Buck Regulator with Integrated Boost and Catch Diodes; Package: DFN; P
LT3470HDDB#TRPBF	Linear	获取价格	LT3470 - Micropower Buck Regulator with Integrated Boost and Catch Diodes; Package: DFN; P
LT3470HTS8	Linear	获取价格	Micropower Buck Regulator with Integrated Boost and Catch Diodes

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