LT3469ETS8#TRPBF

更新时间： 2024-11-29 12:59:19

品牌	Logo	应用领域
凌特 - Linear		驱动器稳压器光电二极管
页数	文件大小	规格书
8页	166K
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中文翻译

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LT3469ETS8#TRPBF 数据手册

LT3469

Piezo Microactuator Driver

with Boost Regulator

FEATURES

DESCRIPTIO

TheLT^®3469isatransconductance(g_m)amplifierthatcan

drive outputs up to 33V from a 5V or 12V supply. An

internal switching regulator generates a boosted supply

voltage for the g_mamplifier. The amplifier can drive

capacitive loads in the range of 5nF to 300nF. Slew rate is

limited only by the maximum output current. The 35V

output voltage capability of the switching regulator, along

with the high supply voltage of the amplifier, combine to

allow the wide output voltage range needed to drive a

piezoceramic microactuator.

Amplifier

■

Current Limit: ±40mA Typical

■

Input Common Mode Range: 0V to 10V

■

Output Voltage Range: 1V to (V_CC– 1V)

■

Differential Gain Stage with High Impedance Output

(g_mStage)

■

Quiescent Current (from V_CC): 2mA

■

Unloaded Gain: 30,000 Typical

Switching Regulator

■

Generates V_CCUp to 35V

■

Wide Operating Supply Range: 2.5V to 16V

The LT3469 switching regulator switches at 1.3MHz,

allowing the use of tiny external components. The output

capacitorcanbeassmallas0.22µF, savingspaceandcost

versus alternative solutions.

■

High Switching Frequency: 1.3MHz

Internal Schottky Diode

Tiny External Components

Current Mode Switcher with Internal Compensation

Low Profile (1mm) SOT-23 Package

■

TheLT3469isavailableinalowprofileThinSOT^TMpackage.

■

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

ThinSOT is a trademark of Linear Technology Corporation.

APPLICATIO S

■

Piezo Speakers

■

Piezo Microactuators

■

Varactor Bias

TYPICAL APPLICATIO

Piezo Microactuator Driver

47µH

5V OR 12V

Response Driving a 33nF Load

1µF

16V

I_OUT

100mA/DIV

453k

0.47µF

50V

V_OUT

10V/DIV

LT3469

16.5k

GND

OUT

9.09k

–

+IN

–IN

OUT

1V TO 33V

INPUT

5V/DIV

INPUT

0V TO 3V

50µs/DIV

3469 TA04

10k

PIEZO

ACTUATOR

5nF < C < 300nF

–

100k

3469 TA03

3469f

12 3 4 5 6 7 8

中文翻译

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LT3469ETS8#TRPBF 替代型号

型号	品牌	替代类型	描述	数据表
LT3469ETS8#TRMPBF	Linear	完全替代	暂无描述

与LT3469ETS8#TRPBF相关器件

型号	品牌	获取价格	描述	数据表
LT3470	Linear Systems	获取价格	Micropower Buck Regulator with Integrated Boost and Catch Diodes
LT3470	Linear	获取价格	Micropower Buck Regulator with Integrated Boost and Catch Diodes
LT3470	ADI	获取价格	具集成升压和箝位二极管的微功率降压型稳压器
LT3470A	Linear	获取价格	Micropower Buck Regulator with Integrated Boost and Catch Diodes
LT3470A	ADI	获取价格	具集成升压和箝位二极管的微功率降压型稳压器
LT3470AEDDB#PBF	Linear	获取价格	LT3470A - Micropower Buck Regulator with Integrated Boost and Catch Diodes; Package: DFN;
LT3470AEDDB#TRMPBF	Linear	获取价格	LT3470A - Micropower Buck Regulator with Integrated Boost and Catch Diodes; Package: DFN;
LT3470AEDDB#TRPBF	Linear	获取价格	LT3470A - Micropower Buck Regulator with Integrated Boost and Catch Diodes; Package: DFN;
LT3470AEDDB-PBF	Linear	获取价格	Micropower Buck Regulator with Integrated Boost and Catch Diodes
LT3470AEDDB-TRPBF	Linear	获取价格	Micropower Buck Regulator with Integrated Boost and Catch Diodes

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