LT3684EDD#PBF

更新时间： 2024-02-27 01:31:53

品牌	Logo	应用领域
凌特 - Linear		稳压器开关
页数	文件大小	规格书
24页	327K
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中文翻译

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数据手册
替代型号

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LT3684EDD#PBF 数据手册

LT3684

36V, 2A, 2.8MHz Step-Down

Switching Regulator

FEATURES

DESCRIPTION

TheLT^®3684isanadjustablefrequency(300kHzto2.8MHz)

monolithic buck switching regulator that accepts input

voltages up to 34V (36V maximum). A high efﬁciency

0.18Ω switch is included on the die along with a boost

Schottky diode and the necessary oscillator, control and

logic circuitry. Current mode topology is used for fast

transient response and good loop stability. The LT3684’s

high operating frequency allows the use of small, low cost

inductors and ceramic capacitors resulting in low output

ripple while keeping total solution size to a minimum.

The low current shutdown mode reduces input supply

current to less than 1µA while a resistor and capacitor on

the RUN/SS pin provide a controlled output voltage ramp

■

Wide Input Range: 3.6V to 34V Operating,

36V Maximum

■

2A Maximum Output Current

■

Adjustable Switching Frequency: 300kHz to 2.8MHz

Low Shutdown Current: I < 1µA

Integrated Boost Diode

Power Good Flag

Saturating Switch Design: 0.18Ω On-Resistance

1.265V Feedback Reference Voltage

Output Voltage: 1.265V to 20V

Soft-Start Capability

Small 10-Pin Thermally Enhanced MSOP and

(3mm × 3mm) DFN Packages

■

(soft-start). A power good ﬂag signals when V

reaches

OUT

APPLICATIONS

90% of the programmed output voltage. The LT3684 is

available in 10-Pin MSOP and 3mm × 3mm DFN packages

with Exposed Pads for low thermal resistance.

■

Automotive Battery Regulation

■

Power for Portable Products

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

All other trademarks are the property of their respective owners.

■

Distributed Supply Regulation

■

Industrial Supplies

■

Wall Transformer Regulation

TYPICAL APPLICATION

3.3V Step-Down Converter

Efﬁciency

3.3V

OUT

4.5V TO

34V

RUN/SS

BOOST

OFF ON

16.2k

0.47µF

4.7µH

4.7µF

LT3684

GND

330pF

BIAS

324k

60.4k

= 12V

OUT

= 3.3V

200k

22µF

L = 4.7µH

f = 800kHz

3684 TA01

0.5

1.5

LOAD CURRENT (A)

3684 TA01b

3684f

12 3 4 5 6 7...24

中文翻译

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LT3684EDD#PBF 替代型号

型号	品牌	替代类型	描述	数据表
LT3684EDD#TRPBF	Linear	功能相似	暂无描述

与LT3684EDD#PBF相关器件

型号	品牌	获取价格	描述	数据表
LT3684EDD#TR	Linear	获取价格	IC 4 A SWITCHING REGULATOR, 3300 kHz SWITCHING FREQ-MAX, PDSO10, 3 X 3 MM, PLASTIC, MO-229
LT3684EDD#TRPBF	Linear	获取价格	暂无描述
LT3684EMSE	Linear	获取价格	36V, 2A, 2.8MHz Step-Down Switching Regulator
LT3684EMSE#PBF	Linear	获取价格	LT3684 - 36V, 2A, 2.8MHz Step-Down Switching Regulator; Package: MSOP; Pins: 10; Temperatu
LT3684EMSE#TR	Linear	获取价格	IC 4 A SWITCHING REGULATOR, 3300 kHz SWITCHING FREQ-MAX, PDSO10, PLASTIC, MSOP-10, Switchi
LT3684IDD	Linear	获取价格	36V, 2A, 2.8MHz Step-Down Switching Regulator
LT3684IDD#TR	Linear	获取价格	IC 4 A SWITCHING REGULATOR, 3300 kHz SWITCHING FREQ-MAX, PDSO10, 3 X 3 MM, PLASTIC, MO-229
LT3684IDD#TRPBF	Linear	获取价格	LT3684 - 36V, 2A, 2.8MHz Step-Down Switching Regulator; Package: DFN; Pins: 10; Temperatur
LT3684IMSE	Linear	获取价格	36V, 2A, 2.8MHz Step-Down Switching Regulator
LT3684IMSE#PBF	Linear	获取价格	LT3684 - 36V, 2A, 2.8MHz Step-Down Switching Regulator; Package: MSOP; Pins: 10; Temperatu

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