LTC4009

LTC4009-1/LTC4009-2

2

4009fb

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

DCIN, CLP, CLN or SW to GND................... –0.3V to 30V

CLP to CLN ............................................................±0.3V

CSP, CSN or BAT to GND ............................ –0.3V to 28V

CSP to CSN............................................................±0.3V

BOOST to GND........................................... –0.3V to 36V

BOOST to SW............................................... –0.3V to 7V

(Note 1)

20 19 18 17 16

6

7

8

TOP VIEW

21

UF PACKAGE

20-LEAD (4mm

4mm) PLASTIC QFN

9

10

5

4

3

2

1

11

12

13

14

15

CLN

CLP

DCIN

ICL

DCDIV

CSP

CSN

PROG

ITH

BAT

EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB

20 19 18 17 16

6

7

8

TOP VIEW

21

UF PACKAGE

20-LEAD (4mm

4mm) PLASTIC QFN

9

10

5

4

3

2

1

11

12

13

14

15

CLN

CLP

DCIN

ICL

DCDIV

CSP

CSN

PROG

ITH

BAT

EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB

ACP, CHRG or ICL to GND ......................... –0.3V to 30V

Operating Temperature Range (Note 2)........ 0°C to 85°C

Junction Temperature (Note 3) ............................. 125°C

Storage Temperature Range................... –65°C to 150°C

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC4009CUF#PBF

LTC4009CUF#TRPBF

4009

20-Lead (4mm

× 4mm) Plastic QFN

0°C to 85°C

LTC4009CUF-1#PBF

LTC4009CUF-1#TRPBF

40091

20-Lead (4mm

× 4mm) Plastic QFN

0°C to 85°C

LTC4009CUF-2#PBF

LTC4009CUF-2#TRPBF

40092

20-Lead (4mm

× 4mm) Plastic QFN

0°C to 85°C

Consult LTC Marketing for parts specified with wider operating temperature ranges.

Consult LTC Marketing for information on non-standard lead based finish parts.

LTC4009

LTC4009-1

LTC4009-2