LT1339C datasheet(1/20 Pages) LINER

부품명	LT1339C

상세설명	High Power Synchronous DC/DC Controller

PDF	20 Pages

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제조업체	LINER [Linear Technology]

홈페이지	http://www.linear.com

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LT1339

High Power Synchronous

DC/DC Controller

DESCRIPTION

FEATURES

The LT

®1339 is a high power synchronous current mode

switching regulator controller. The IC drives dual

N-channel MOSFETs to create a single IC solution for high

power DC/DC converters in applications up to 60V.

The LT1339 incorporates programmable average current

limiting, allowing accurate limiting of DC load current

independent of inductor ripple current. The IC also incor-

porates user-adjustable slope compensation for minimi-

zation of magnetics at duty cycles up to 90%.

The LT1339 timing oscillator operating frequency is pro-

grammable and can be synchronized up to 150kHz. Mini-

mum off-time operation provides main switch protection.

The IC also incorporates a soft start feature that is gated by

both shutdown and undervoltage lockout conditions.

An output phase reversal pin allows flexibility in configu-

ration of converter types, including inverting and negative

topologies.

s

High Voltage: Operation Up to 60V

s

High Current: Dual N-Channel Synchronous Drive

Handles Up to 10,000pF Gate Capacitance

s

Programmable Average Load Current Limiting

s

5V Reference Output with 10mA External

Loading Capability

s

Programmable Fixed Frequency Synchronizable

Current Mode Operation Up to 150kHz

s

Undervoltage Lockout with Hysteresis

s

Programmable Start Inhibit for Power Supply

Sequencing and Protection

s

Adaptive Nonoverlapping Gate Drive Prevents

Shoot-Through

s

48V Telecom Power Supplies

s

Personal Computers and Peripherals

s

Distributed Power Converters

s

Industrial Control Systems

s

Lead-Acid Battery Backup Systems

s

Automotive and Heavy Equipment

APPLICATIONS

TYPICAL APPLICATION

, LTC and LT are registered trademarks of Linear Technology Corporation.

28V to 5V 20A Buck Converter

SYNC

VBOOST

5VREF

TG

CT

TS

SL/ADJ

12VIN

IAVG

BG

SS

PGND

VC

PHASE

SGND

RUN/SHDN

VFB

SENSE+

VREF

SENSE–

DBST

IN5819

12V

VIN

28V

CIN

1500

µF

63V

× 3

IRL3803

IRL3103D2

× 2

L1

10

µH

VOUT

5V AT 20A

RFB2

1k

RFB1

3k

LT1339

+

CBST

1

µF

+

C12VIN

47

µF

+

COUT

2200

µF

6.3V

× 2

+

D2

MBR0520

D1

MBR0520

RRUN

100k

RS

0.005

Ω

RCT

10k

CCT

2200pF

CAVG

2200pF

CSS, 1µF

CVC, 1nF

RVC, 10k

CREF

0.1

µF

1339 TA03

L1 = CTX02-13400-X2

C5VREF

1

µF

+

28V to 5V Efficiency

OUTPUT CURRENT (A)

0

20

1339 TA03a

5

10

15

100

90

80

70

60

50

유사한 부품 번호 - LT1339C

제조업체	부품명	데이터시트	상세설명
Linear Technology	LT1339	205Kb / 24P	High Voltage, Current Mode Switching Regulator Controller with Programmable Operating Frequency
	LT1339	247Kb / 20P	High Speed Single/Dual N-Channel MOSFET Drivers
	LT1339	298Kb / 20P	High Power Synchronous DC/DC Controller

More results

유사한 설명 - LT1339C

제조업체	부품명	데이터시트	상세설명
Fairchild Semiconductor	FAN5070	147Kb / 14P	High Performance Programmable Synchronous DC-DC Controller
Linear Technology	LTC3806	241Kb / 20P	Synchronous Flyback DC/DC Controller
Anpec Electronics Corop...	APW7057	154Kb / 14P	High Power Step-Down Synchronous DC/DC Controller
Fairchild Semiconductor	SG1577A	582Kb / 15P	Dual Synchronous DC/DC Controller
	FAN1577A	1Mb / 15P	Dual Synchronous DC/DC Controller
	SG1577A	856Kb / 15P	Dual Synchronous DC/DC Controller
	SG1577	848Kb / 14P	Dual Synchronous DC/DC Controller
Anpec Electronics Corop...	APW7057	419Kb / 15P	High Power Step-Down Synchronous DC/DC Controller
Linear Technology	LTC3806	219Kb / 20P	Synchronous Flyback DC/DC Controller
Linear Technology	LT1339	298Kb / 20P	High Power Synchronous DC/DC Controller

More results

LT1339C 데이터시트(PDF) 1 Page - Linear Technology

LT1339C 데이터시트(HTML) 1 Page - Linear Technology

유사한 부품 번호 - LT1339C

유사한 설명 - LT1339C

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