Datasheet > LQH32CN4R7M23

LQH32CN4R7M23

更新时间： 2024-11-15 12:05:03

品牌	Logo	应用领域
凌特 - Linear		电感器测试大电流电感器
页数	文件大小	规格书
16页	307K
描述
2.25MHz, 300mA Synchronous Step-Down

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中文翻译

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LQH32CN4R7M23 数据手册

LTC3410

2.25MHz, 300mA

Synchronous Step-Down

Regulator in SC70

DESCRIPTIO

FEATURES

■

High Efficiency: Up to 96%

The LTC^®3410 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 26µA, dropping to <1µA in shutdown.

The 2.5V to 5.5V input voltage range makes the LTC3410

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

tions. 100% duty cycle provides low dropout operation,

extending battery life in portable systems.

■

Low Ripple (20mV_P-P) Burst Mode Operation: I_Q26µA

■

Low Output Voltage Ripple

■

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

Switching frequency is internally set at 2.25MHz, allowing

the use of small surface mount inductors and capacitors.

The LTC3410 is specifically designed to work well with

ceramic output capacitors, achieving very low output

voltage ripple and a small PCB footprint.

■

0.8V Reference Allows Low Output Voltages

■

Shutdown Mode Draws <1µA Supply Current

■

±2% Output Voltage Accuracy

■

Current Mode Operation for Excellent Line and

Load Transient Response

Overtemperature Protected

■

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 LTC3410 is available in a tiny,

low profile SC70 package.

■

^{Available in Low}U^{Profile SC70 Package}

APPLICATIO S

■

Cellular Telephones

Wireless and DSL Modems

Digital 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, 6580258, 6304066, 6127815, 6498466, 6611131, 5994885.

■

Portable Instruments

TYPICAL APPLICATIO

Efficiency and Power Loss

vs Output Current

100

4.7µH

OUT

2.7V

LTC3410

RUN

0.1

0.01

2.5V

10pF

EFFICIENCY

TO 5.5V

OUT

4.7µF

CER

887k

POWER LOSS

GND

412k

0.001

3410 TA01a

= 2.7V

= 3.6V

= 4.2V

0.1

0.0001

1000

100

OUTPUT CURRENT (mA)

3410 TA01b

3410fb

12 3 4 5 6 7...16

中文翻译

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与LQH32CN4R7M23相关器件

型号	品牌	获取价格	描述	数据表
LQH32CN4R7M23#	MURATA	获取价格
LQH32CN4R7M23B	MURATA	获取价格	General Purpose Inductor, 4.7uH, 20%, 1 Element, Ferrite-Core, SMD, CHIP
LQH32CN4R7M23K	MURATA	获取价格	General Purpose Inductor, 4.7uH, 20%, 1 Element, Ferrite-Core, SMD, 1210, CHIP, 1210
LQH32CN4R7M23L	MURATA	获取价格	Chip Inductor (Chip Coil) Power Inductor (Wire Wound Type for Choke)
LQH32CN4R7M33	MURATA	获取价格	General Purpose Inductor, 4.7uH, 20%, 1 Element, Ferrite-Core, SMD, CHIP, 1210
LQH32CN4R7M33	ANALOGICTECH	获取价格	1MHz Step-Down Converter/LDO Regulator
LQH32CN4R7M33#	MURATA	获取价格
LQH32CN4R7M33B	MURATA	获取价格	General Purpose Inductor, 4.7uH, 20%, 1 Element, Ferrite-Core, SMD, CHIP
LQH32CN4R7M33K	MURATA	获取价格	General Purpose Inductor, 4.7uH, 20%, 1 Element, Ferrite-Core, SMD, 1210, CHIP, 1210
LQH32CN4R7M33L	MURATA	获取价格	Chip Inductor (Chip Coil) Power Inductor (Wire Wound Type for Choke)

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