LTC3115-1 View Datasheet(PDF) - Linear Technology

Part Name

Description

Manufacturer

LTC3115-1

40V, 2A Synchronous Buck-Boost DC/DC Converter

Linear Technology 

LTC3115-1

Block Diagram Pin numbers are shown for the DHD package only.

14

PVIN

A

15

2

SW1 SW2

D

BC

PGND PGND

3

PVOUT

+

3A –

+

–1.5A –

CURRENT

LIMIT

REVERSE

CURRENT

LIMIT

+

0A –

ZERO

CURRENT

10

VIN

REVERSE

BLOCKING

LDO

PVCC* 11

GATE

DRIVES

VC

6

FB

7

SOFT-START

1000mV

++–

RAMP

8 RT

PWM/SYNC

16

OSCILLATOR

MODE

SELECTION

VIN

÷

PWM

1.21V

1000mV

BURST/PWM

(PWM MODE IF PWM/SYNC

IS HIGH OR SWITCHING)

CHIP

ENABLE

GND GND

EXPOSED

PAD

54

17

*PVCC AND VCC MUST BE CONNECTED TOGETHER IN THE APPLICATION

THE EXPOSED PAD IS AN ELECTRICAL CONNECTION AND MUST BE SOLDERED

TO THE BOARD AND ELECTRICALLY CONNECTED TO GROUND

PGND

BANDGAP

REFERENCE

BST2

12

BST1

13

VCC

VCC*

9

INPUT UVLO

VIN

2.4V

VIN

0.5µA

UVLO

RUN

1

1.21V

VCC

2.4V

OVERTEMPERATURE

3115 BD

12

For more information www.linear.com/LTC3115-1

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