40123fb

LTC4012-3

pin conFiguraTion

absoluTe MaxiMuM raTings

DCIN ............................................................–14V to 30V

DCIN to CLP................................................ –32V to 20V

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

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

Operating Temperature Range

(Note 2) ............................................. –40°C to 125°C

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

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

(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

INFET

DCIN

GND

CSP

CSN

PROG

ITH

BAT

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

orDer inForMaTion

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC4012CUF-3#PBF

LTC4012CUF-3#TRPBF

40123

20-Lead (4mm

× 4mm) Plastic QFN

0°C to 85°C

LTC4012IUF-3#PBF

LTC4012IUF-3#TRPBF

40123

20-Lead (4mm

× 4mm) Plastic QFN

–40°C to 125°C

Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.

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