LTC4238

2

Rev. 0

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PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

Supply Voltages

Input Voltages

GATE – SOURCE (Note 3) ...................... –0.3V to 10V

SOURCE, FB, OV, UV, .......................... –0.3V to 100V

TMR, TMRFET, ISET, CONFIG1,

(Notes 1 and 2)

ORDER INFORMATION

TUBE

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC4238CUFD#PBF

LTC4238CUFD#TRPBF

4238

24-Lead (4mm × 5mm) Plastic QFN

0°C to 70°C

LTC4238IUFD#PBF

LTC4238IUFD#TRPBF

4238

24-Lead (4mm × 5mm) Plastic QFN

–40°C to 85°C

LTC4238HUFD#PBF

LTC4238HUFD#TRPBF

4238

24-Lead (4mm × 5mm) Plastic QFN

–40°C to 125°C

LTC4238CGN#PBF

LTC4238CGN#TRPBF

LTC4238GN

24-Lead Plastic SSOP

0°C to 70°C

LTC4238IGN#PBF

LTC4238IGN#TRPBF

LTC4238GN

24-Lead Plastic SSOP

–40°C to 85°C

LTC4238HGN#PBF

LTC4238HGN#TRPBF

LTC4238GN

24-Lead Plastic SSOP

–40°C to 125°C

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

Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.

Output Voltages

GATE, PG, FLT#.................................... –0.3V to 100V

COMM .................................................. –0.3V to 5.5V

Output Currents

Operating Junction Temperature Range

LTC4238C................................................ 0°C to 70°C

LTC4238I .............................................–40°C to 85°C

LTC4238H.......................................... –40°C to 125°C

Storage Temperature Range

GN Package ....................................... –65°C to 150°C

UFD Package ..................................... –65°C to 125°C

Lead Temperature (Soldering, 10 sec)...................300°C

8

9

TOP VIEW

UFD PACKAGE

24-LEAD (4mm × 5mm) PLASTIC QFN

EXPOSED PAD (PIN 25) PCB GND

ELECTRICAL CONNECTION OPTIONAL

10 11 12

24 23 22 21 20

6

5

4

3

2

1

NC

UV

OV

COMM

NC

PG

FLT#

GND

FB

7

14

15

16

17

18

19

13

25

1

2

3

4

5

6

7

8

9

10

11

12

TOP VIEW

GN24 PACKAGE

24-LEAD PLASTIC SSOP

24

23

22

21

20

19

18

17

16

15

14

13

NC

UV

OV

COMM

TMR

TMRFET

ISET

GATE1

GATE2

SOURCE

NC

PG

FLT#

GND

FB

CONFIG1

CONFIG2