Datasheet > LT3495EDDB-TRPBF

LT3495EDDB-TRPBF

更新时间： 2024-11-04 05:43:31

品牌	Logo	应用领域
凌特 - Linear		转换器升压转换器
页数	文件大小	规格书
16页	325K
描述
650mA/350mA Micropower Low Noise Boost Converter with Output Disconnect

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中文翻译

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数据手册

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LT3495EDDB-TRPBF 数据手册

LT3495/LT3495B/

LT3495-1/LT3495B-1

650mA/350mA Micropower

Low Noise Boost Converter

with Output Disconnect

DESCRIPTION

FEATURES

TheLT^®3495/LT3495B/LT3495-1/LT3495B-1arelownoise

boost converters with integrated power switch, feedback

resistor and output disconnect circuitry. The parts control

power delivery by varying both the peak inductor current

and switch off-time. This novel* control scheme results

in low output voltage ripple as well as high efﬁciency

over a wide load range. For the LT3495/LT3495-1, the

off-time of the switch is not allowed to exceed a ﬁxed

level, guaranteeing the switching frequency stays above

the audio band for the entire load range. The parts feature

a high performance NPN power switch with a 650mA

and 350mA current limit for the LT3495/LT3495B and

LT3495-1/LT3495B-1 respectively. The quiescent current

is a low 60μA, which is further reduced to 0.1μA in shut-

down. The internal disconnect circuitry allows the output

voltage to be isolated from the input during shutdown. An

auxiliary reference input (CTRL pin) overrides the internal

1.235V feedback reference with any lower value allowing

full control of the output voltage during operation. The

LT3495 series are available in a tiny 10-lead 3mm × 2mm

DFN package.

Low Quiescent Current

60μA in Active Mode

0.1μA in Shutdown Mode

Low Noise Control Scheme (Switching Frequency

Always Stays Above Audible Range for LT3495/-1)

Integrated Power NPN:

650mA Current Limit (LT3495/B)

350mA Current Limit (LT3495-1/B-1)

Integrated Output Disconnect

Integrated Output Dimming

Wide input range: 2.3V to 16V

Wide output range : Up to 40V

Integrated feedback resistor

Tiny 10-Lead 3mm × 2mm DFN Package

APPLICATIONS

OLED Power

Low Noise Power

MP3 Player

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

All other trademarks are the property of their respective owners. *Patent pending.

TYPICAL APPLICATION

Output Voltage Ripple

vs Load Current

Efﬁciency vs Load Current

OLED Power Supply from One Li-Ion Cell

400

320

240

160

10μH

= 3.6V

ONE

Li-Ion

CELL

LOAD FROM CAP

LOAD FROM V

1.0μF 0603

CAPACITOR AT V

4.7μF

2.2μF

OUT

CAP

OUT

16V

OUT

70mA

LT3495

909k

1μF

SHDN

CTRL

GND

3495 TA01a

2.2μF 1206

CAPACITOR AT V

OUT

100

0.1

100

LOAD CURRENT (mA)

3495 TA01b

3495 TA01c

3495b1b1f

12 3 4 5 6 7...16

中文翻译

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与LT3495EDDB-TRPBF相关器件

型号	品牌	获取价格	描述	数据表
LT3496	Linear	获取价格	Triple Output LED Driver
LT3496	ADI	获取价格	三通道输出 LED 驱动器
LT3496EFE#PBF	Linear	获取价格	LT3496 - Triple Output LED Driver; Package: TSSOP; Pins: 28; Temperature Range: -40&de
LT3496EFE#TRPBF	Linear	获取价格	LT3496 - Triple Output LED Driver; Package: TSSOP; Pins: 28; Temperature Range: -40&de
LT3496EFE-PBF	Linear	获取价格	Triple Output LED Driver
LT3496EFE-TRPBF	Linear	获取价格	Triple Output LED Driver
LT3496EUFD#PBF	Linear	获取价格	LT3496 - Triple Output LED Driver; Package: QFN; Pins: 28; Temperature Range: -40°
LT3496EUFD#TRPBF	Linear	获取价格	LT3496 - Triple Output LED Driver; Package: QFN; Pins: 28; Temperature Range: -40°
LT3496EUFD-PBF	Linear	获取价格	Triple Output LED Driver
LT3496EUFD-TRPBF	Linear	获取价格	Triple Output LED Driver

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