LT3751

2

3751f

ABSOLUTE MAXIMUM RATINGS

DONE, FAULT ............................................................24V

LVGATE (Note 8) .......................................................24V

HVGATE ................................................................Note 9

RBG, CSP, CSN............................................................2V

FB ...............................................................................5V

Current into DONE Pin ...........................................±1mA

Current into FAULT Pin...........................................±1mA

Current into RDCM Pin ........................................±10mA

Current into UVLO1 Pin..........................................±1mA

Current into UVLO2 Pin..........................................±1mA

Current into OVLO1 Pin..........................................±1mA

Current into OVLO2 Pin..........................................±1mA

Maximum Junction Temperature........................... 125°C

Operating Temperature Range (Note 2).. –40°C to 125°C

Storage Temperature Range................... –65°C to 125°C

(Note 1)

20 19 18 17

7

8

TOP VIEW

UFD PACKAGE

20-PIN (4mm × 5mm) PLASTIC QFN

9

10

6

5

4

3

2

1

11

12

13

14

15

16

OVLO1

UVLO2

OVLO2

FAULT

DONE

CHARGE

NC

RBG

HVGATE

LVGATE

21

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

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LT3751EUFD#PBF

LT3751EUFD#TRPBF

3751

20-Lead (4mm

× 5mm) Plastic QFN

–40°C to 125°C

LT3751IUFD#PBF

LT3751IUFD#TRPBF

3751

20-Lead (4mm

× 5mm) Plastic QFN

–40°C to 125°C

LEAD BASED FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LT3751EUFD

LT3751EUFD#TR

3751

20-Lead (4mm

× 5mm) Plastic QFN

–40°C to 125°C

LT3751IUFD

LT3751IUFD#TR

3751

20-Lead (4mm

× 5mm) 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.

For more information on lead free part marking, go to: http://www.linear.com/leadfree/

For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/

PIN CONFIGURATION