LTC1612 查看數據表（PDF） - Linear Technology

零件编号

产品描述 (功能)

比赛名单

LTC1612

Synchronous, Step-Down 800kHz PWM DC/DC Converter

Linear Technology 

LT1612

TYPICAL APPLICATIONS

VIN

2.7V TO 4.2V

BURSTMODE

10µF

CERAMIC

Single Li-Ion to 2V Converter

0.1µF

VIN BOOST

SHDN

SW

L1

10µH

LT1612

20pF

MODE

FB

VC

GND

30k

680pF

1M

453k

1%

1%

C1: TAIYO-YUDEN LMK325BJ106MN

C2: TAIYO-YUDEN LMK325BJ226MN

L1: SUMIDA CD43-100

VOUT

2V

500mA

22µF

CERAMIC

1612 TA02

Transient Response

VOUT 50mV/DIV

IL 200mA/DIV

LOAD STEP

125mA TO 300mA

VIN = 4V

VOUT = 2V

MODE = HIGH

100µs/DIV

1612 TA03

Li-Ion to 2V Converter Efficiency

85

80

VIN = 2.8V

75

70

VIN = 4.2V

65

VIN = 3.5V

60

55

50

1

10

100

LOAD CURRENT (mA)

1000

1612 TA04

Burst Mode Operation

Inrush Current at Start-Up

VOUT 20mV/DIV

IL 100mA/DIV

MODE = LOW

5µs/DIV

1612 TA05

VOUT 2V/DIV

INRUSH

CURRENT

200mA/DIV

VSHDN 5V/DIV

0.2ms/DIV

1612 TA06

6

Share Link: