LT1389 datasheet(11/20 Pages) LINER

Part #	LT1389

Description	Energy Harvesting DC/DC with Battery Backup Low Noise LDO Post Regulator

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LTC3330

11

3330p

For more information www.linear.com/LTC3330

OUT0,OUT1,OUT2(Pins30,31,32):VOUTVoltageSelect

Bits. Tie high to VIN3 or low to GND to select the desired

VOUT (see Table 1). Do not float.

pin FuncTions

GND (Exposed Pad Pin 11): Ground. The exposed pad

must be connected to a continuous ground plane on the

second layer of the printed circuit board by several vias

directly under the LTC3330.

block DiagraM

3330 BD

BANDGAP

REFERENCE

INTERNAL

RAIL

GENERATION

PRIORITZER

UVLO

UVLO_SET

SLEEP

VIN

VREF

AC1

20V

10

8

AC2

BAT

9

16

EH_ON

SLEEP

ILIM_SET

VREF

PGVOUT

PGLDO

29

28

27

–

+

–

+

SLEEP

0.9*VREF

VREF

–

+

–

+

0.925*VREF

CAP

11

SW

VIN2

GND

33

SWA

SWB

LDO_IN

VOUT

15

14

13

21

LDO_OUT

SCAP

BAL

20

1

2

VIN3

26

BUCK-BOOST

CONTROL

ILIM_SET

UVLO_SET

12

3

32, 31, 30

22, 23, 24

4

4, 5, 6, 7

UV[3:0]

3

19, 18, 17

IPK[2:0]

OUT[2:0]

LDO[2:0]

BUCK

CONTROL

LDO_EN

25

–

+

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