LTC3555 View Datasheet(PDF) - Linear Technology

Part Name

Description

MFG CO.

LTC3555

High Effi ciency USB Power Manager + Triple Step-Down DC/DC

Linear Technology 

Prev 11 12 13 14 15 16 17 18 19 20 Next

BLOCK DIAGRAM

LTC3555/LTC3555-X

VBUS 25

CLPROG 2

NTC 3

CHRG 21

2.25MHz

PowerPath

SWITCHING

REGULATOR

SUSPEND

LDO

500μA

–

+

BATTERY

TEMPERATURE

MONITOR

1.188V

CHARGE

STATUS

3.3V LDO

26 SW

1 LDO3V3

24 VOUT

CC/CV

CHARGER

0+.3–V

IDEAL

+–

+

–

15mV

22 GATE

23 BAT

3.6V

20 PROG

ENABLE

400mA 2.25MHz

SWITCHING

REGULATOR 1

18 VIN1

17 SW1

19 FB1

ILIM0 27

ILIM1 28

EN1 16

EN2 7

EN3 13

DVCC 8

SDA 10

SCL 9

ILIM

DECODE

LOGIC

D/A

4

D/A

ENABLE

400mA 2.25MHz

SWITCHING

REGULATOR 2

ENABLE

1A 2.25MHz

SWITCHING

REGULATOR 3

4

5 VIN2

6 SW2

4 FB2

11 VIN3

12 SW3

14 FB3

15 RST3

I2C PORT

29

GND

3555 BD

3555fd

13

Share Link: