Datasheet > LTC3400B

LTC3400B

更新时间： 2023-12-20 18:44:19

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
12页	218K
描述
采用 ThinSOT 封装的 600mA、1.2MHz 微功率同步升压型转换器

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中文翻译

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数据手册

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LTC3400B 数据手册

LTC3400/LTC3400B

600mA, 1.2MHz Micropower

Synchronous Boost Converter

in ThinSOT

FEATURES

DESCRIPTIO

■

Up to 92% Efficiency

The LTC^®3400/LTC3400B are synchronous, fixed fre-

quency, step-up DC/DC converters delivering high effi-

ciencyina6-leadThinSOT™package.Capableofsupplying

3.3V at 100mA from a single AA cell input, the devices

contain an internal NMOS switch and PMOS synchronous

rectifier.

■

Generates 3.3V at 100mA from a Single AA Cell

■

Low Start-Up Voltage: 0.85V

■

1.2MHz Fixed Frequency Switching

■

Internal Synchronous Rectifier

■

2.5V to 5V Output Range

Automatic Burst Mode^®Operation (LTC3400)

■

A switching frequency of 1.2MHz minimizes solution

footprint by allowing the use of tiny, low profile inductors

and ceramic capacitors. The current mode PWM design is

internally compensated, reducing external parts count.

The LTC3400 features automatic shifting to power saving

Burst Mode operation at light loads, while the LTC3400B

features continuous switching at light loads. Antiringing

control circuitry reduces EMI concerns by damping the

inductor in discontinuous mode, and the devices feature

low shutdown current of under 1µA.

■

Continuous Switching at Light Loads (LTC3400B)

■

Logic Controlled Shutdown (<1µA)

■

Antiringing Control Minimizes EMI

■

Tiny External Components

■

Low Profile (1mm) SOT-23 Package

APPLICATIO S

■

Pagers

■

MP3 Players

■

Digital Cameras

LCD Bias Supplies

Both devices are available in the low profile (1mm)

SOT-23 package.

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

ThinSOT is a trademark of Linear Technology Corporation.

■

Handheld Instruments

■

Wireless Handsets

■

GPS Receivers

TYPICAL APPLICATIO

Efficiency

4.7µH

100

= 2.4V

SINGLE

AA CELL

4.7µF

OUT

3.3V

OUT

= 1.5V

1.02M

100mA

LTC3400

SHDN FB

GND

OFF

4.7µF

604k

FIGURE 1 CIRCUIT

WITH OPTIONAL SCHOTTKY DIODE

(SEE APPLICATIONS INFORMATION)

3400 F01

C1, C2: TAIYO-YUDEN X5R EMK316BJ475ML

L1: COILCRAFT DO160C-472

0.1

100

1000

LOAD CURRENT (mA)

Figure 1. Single Cell to 3.3V Synchronous Boost Converter

3400 F01a

3400fa

12 3 4 5 6 7...12

中文翻译

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与LTC3400B相关器件

型号	品牌	获取价格	描述	数据表
LTC3400B_15	Linear	获取价格	600mA, 1.2MHz Micropower Synchronous Boost Converter in ThinSOT
LTC3400BES6	Linear	获取价格	600mA, 1.2MHz Micropower Synchronous Boost Converter in ThinSOT
LTC3400BES6#PBF	Linear	获取价格	IC 0.85 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO6, PLASTIC, SOT-23, 6 PIN,
LTC3400BES6#TR	Linear	获取价格	LTC3400B - 600mA, 1.2MHz Micropower Synchronous Boost Converters in ThinSOT; Package: SOT;
LTC3400BES6#TRM	Linear	获取价格	LTC3400B - 600mA, 1.2MHz Micropower Synchronous Boost Converters in ThinSOT; Package: SOT;
LTC3400BES6#TRPBF	Linear	获取价格	600mA, 1.2MHz Micropower Synchronous Boost Converters in ThinSOT
LTC3400ES6	Linear	获取价格	600mA, 1.2MHz Micropower Synchronous Boost Converter in ThinSOT
LTC3400ES6#PBF	Linear	获取价格	LTC3400 - 600mA, 1.2MHz Micropower Synchronous Boost Converters in ThinSOT; Package: SOT;
LTC3400ES6#TRMPBF	Linear	获取价格	暂无描述
LTC3400ES6#TRPBF	Linear	获取价格	LTC3400 - 600mA, 1.2MHz Micropower Synchronous Boost Converters in ThinSOT; Package: SOT;

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