LTC3788-1

2

37881f

PIN CONFIGURATION

ABSOLUTE MAXIMUM RATINGS

VBIAS......................................................... –0.3V to 40V

BOOST1, BOOST2...................................... –0.3V to 76V

SW1, SW2 ................................................. –0.3V to 70V

RUN1, RUN2................................................ –0.3V to 8V

Maximum Current Sourced into Pin

from Source > 8V..............................................100μA

PGOOD1, PLLIN/MODE ............................... –0.3V to 6V

SS1, SS2, ITH1, ITH2, FREQ,

Operating Junction Temperature Range ... –40°C to 125°C

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

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

(Note 1)

1

2

3

4

5

6

7

8

9

10

11

12

13

14

TOP VIEW

GN PACKAGE

28-LEAD PLASTIC SSOP

28

27

26

25

24

23

22

21

20

19

18

17

16

15

ITH1

VFB1

FREQ

PLLIN/MODE

SGND

RUN1

RUN2

VFB2

ITH2

SS2

SS1

PGOOD1

SW1

TG1

BOOST1

BG1

VBIAS

PGND

BG2

BOOST2

TG2

SW2

ORDER INFORMATION

LEAD FREE FINISH

TAPE AND REEL

PART MARKING*

PACKAGE DESCRIPTION

TEMPERATURE RANGE

LTC3788EGN-1#PBF

LTC3788EGN-1#TRPBF

LTC3788GN-1

28-Lead Plastic SSOP

–40°C to 125°C

LTC3788IGN-1#PBF

LTC3788IGN-1#TRPBF

LTC3788GN-1

28-Lead Plastic SSOP

–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.

ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Main Control Loop

VBIAS

Chip Bias Voltage Operating Range

4.5

38

V

VFB1,2

Regulated Feedback Voltage

l

1.188

1.200

1.212

V

IFB1,2

Feedback Current

(Note 4)

±5

±50

nA

Reference Line Voltage Regulation

0.002

0.02

%/V