Datasheet > LTC3410B

LTC3410B

更新时间： 2025-09-06 05:43:51

品牌	Logo	应用领域
凌特 - Linear		稳压器
页数	文件大小	规格书
16页	282K
描述
2.25MHz, 300mA Synchronous Step-Down Regulator in SC70

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LTC3410B 数据手册

LTC3410B

2.25MHz, 300mA

Synchronous Step-Down

Regulator in SC70

DESCRIPTIO

FEATURES

■

High Efficiency: Up to 96%

The LTC^®3410B is a high efficiency monolithic synchro-

nous buck regulator using a constant frequency, current

mode architecture. The device is available in adjustable

and fixed output voltage versions. Supply current during

operation is only 200µA, dropping to <1µA in shutdown.

The2.5Vto5.5VinputvoltagerangemakestheLTC3410B

ideally suited for single Li-Ion battery-powered applica-

tions. 100% duty cycle provides low dropout operation,

extending battery life in portable systems. PWM pulse

skipping mode operation provides very low output ripple

voltage for noise sensitive applications.

■

300mA Output Current at V_IN= 3V

■

380mA Minimum Peak Switch Current

■

2.5V to 5.5V Input Voltage Range

■

2.25MHz Constant Frequency Operation

■

No Schottky Diode Required

■

Low Dropout Operation: 100% Duty Cycle

■

Stable with Ceramic Capacitors

■

0.8V Reference Allows Low Output Voltages

■

Shutdown Mode Draws <1µA Supply Current

■

±2% Output Voltage Accuracy

■

Current Mode Operation for Excellent Line and

Switching frequency is internally set at 2.25MHz, allowing

the use of small surface mount inductors and capacitors.

The LTC3410B is specifically designed to work well with

ceramic output capacitors, achieving very low output

voltage ripple and a small PCB footprint.

Load Transient Response

■

Overtemperature Protected

■

Available in Low Profile SC70 Package

APPLICATIO S

The internal synchronous switch increases efficiency and

eliminates the need for an external Schottky diode. Low

output voltages are easily supported with the 0.8V feed-

back reference voltage. The LTC3410B is available in a

tiny, low profile SC70 package.

■

Cellular Telephones

■

Personal Information Appliances

■

Wireless and DSL Modems

■

Digital Still Cameras

■

MP3 Players

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

other trademarks are the property of their respective owners. Protected by U.S. Patents,

including 5481178, 5994885, 6580258, 6304066, 6127815, 6498466, 6611131.

■

Portable Instruments

Efficiency and Power Loss

vs Output Current

TYPICAL APPLICATIO

100

EFFICIENCY

4.7µH

OUT

0.1

0.01

2.7V

LTC3410B

RUN

1.2V

10pF

TO 5.5V

OUT

2.2µF

CER

POWER LOSS

232k

GND

464k

0.001

3410 TA01

= 2.7V

= 3.6V

= 4.2V

0.0001

1000

100

OUTPUT CURRENT (mA)

3410 TA01b

3410bfa

12 3 4 5 6 7...16

中文翻译

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与LTC3410B相关器件

型号	品牌	获取价格	描述	数据表
LTC3410BESC6#TRMPBF	ADI	获取价格	元器件封装:SC-70-6;
LTC3410BESC6-1.2	Linear	获取价格	2.25MHz, 300mA Synchronous Step-Down Regulator in SC70
LTC3410BESC6-1.2#PBF	Linear	获取价格	暂无描述
LTC3410BESC6-1.2#TR	Linear	获取价格	暂无描述
LTC3410BESC6-1.2#TRM	Linear	获取价格	LTC3410B - 2.25MHz, 300mA Synchronous Step-Down Regulator in SC70; Package: SC70; Pins: 6;
LTC3410BESC6-1.2#TRMPBF	Linear	获取价格	LTC3410B - 2.25MHz, 300mA Synchronous Step-Down Regulator in SC70; Package: SC70; Pins: 6;
LTC3410BESC6-1.2#TRPBF	Linear	获取价格	LTC3410B - 2.25MHz, 300mA Synchronous Step-Down Regulator in SC70; Package: SC70; Pins: 6;
LTC3410BESC6-1.5	Linear	获取价格	2.25MHz, 300mA Synchronous Step-Down Regulator in SC70
LTC3410BESC6-1.5#PBF	Linear	获取价格	LTC3410B - 2.25MHz, 300mA Synchronous Step-Down Regulator in SC70; Package: SC70; Pins: 6;
LTC3410BESC6-1.5#TR	Linear	获取价格	暂无描述

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