SC198 datasheet(1/16 Pages) SEMTECH

tên linh kiện	SC198

Giải thích chi tiết về linh kiện	Dual DC-DC Buck Converter with High Current Capability

PDF	16 Pages

Scroll/Zoom	100%

nhà sản xuất	SEMTECH [Semtech Corporation]

Trang chủ	http://www.semtech.com

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Description

March 28, 2007

Typical Application Circuit

The SC198 is a high-efﬁciency, dual synchronous buck

converter designed for use in low power applications. Each

converter is capable of supplying up to 600mA of average

current at one of eight programmable output voltages

commonly used as microprocessor supply voltages.

The SC198 uses a single control logic block for the two

converters, but their controls can be set independently.

The SC198 employs a ﬂexible clocking scheme that

allows the user to use the ﬁxed internal 1MHz oscillator or

synchronize the clock to an external source. The device

also has an optional power-save mode that optimizes

efﬁciency for light loads.

The SC198 provides output voltage ﬂexibility while

conserving board space by using control pins to select

the output voltage instead of external resistor voltage

divider circuits. This eliminates at least four parts from

the traditional dual buck converter bill of materials.

Dual buck converters with independent control

High efﬁciency - over 90% peak

8 programmable output voltages

Input voltage range between 2.7V to 5.5V

Fixed-frequency operation - 1MHz

Optional SYNC clock input

Optional power-save under light-load conditions

Shutdown current <1μA

Soft-start to limit in-rush current

4mm x 4mm MLPQ package

Features

Applications

4.7μH

VINA

VINR

VINB

ENA

CTLA0

CTLA1

CTLA2

ENB

CTLB0

CTLB1

CTLB2

LXA

VOUTA

GNDA

LXB

VOUTB

GNDB

SYNC

GNDR

VOUTB

1

18

15

5

6

7

16

11

10

9

17

2

4

3

14

12

13

8

20

10μF

VOUTA

10μF

SC198

Mobile phones

Cordless phones

MP3 players

Digital cameras

PDAs

Single li-ion cell or (3) NiMH/NiCd cell devices

Digital multimedia broadcast (DMB) devices

Portable gaming systems

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1

SC198

Dual DC-DC Buck Converter

with High Current Capability

POWER MANAGEMENT

Số phần tương tự - SC198

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Semtech Corporation	SC198	406Kb / 16P	Dual DC-DC Buck Converter with High Current Capability
	SC198A	352Kb / 15P	Dual DC-DC Buck Converter with High Current Capability
	SC198AEVB	352Kb / 15P	Dual DC-DC Buck Converter with High Current Capability
	SC198AMLTRT	352Kb / 15P	Dual DC-DC Buck Converter with High Current Capability
	SC198EVB	406Kb / 16P	Dual DC-DC Buck Converter with High Current Capability

More results

Mô tả tương tự - SC198

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Semtech Corporation	SC198	406Kb / 16P	Dual DC-DC Buck Converter with High Current Capability
Semtech Corporation	SC198A	352Kb / 15P	Dual DC-DC Buck Converter with High Current Capability
Linear Technology	LTC3443	201Kb / 16P	High Current Micropower 600kHz Synchronous Buck-Boost DC/DC Converter
Analog Microelectronics	AME5104	87Kb / 12P	DC/DC Buck Converter
Linear Technology	LTC3441	189Kb / 16P	High Current Micropower Synchronous Buck-Boost DC/DC Converter
Leshan Radio Company	LR2596	154Kb / 7P	150KHz, 3A PWM Buck DC/DC Converter TTL shutdown capability
Linear Technology	LTC3443	233Kb / 16P	High Current Micropower 600kHz Synchronous Buck-Boost DC/DC Converter
Linear Technology	LTC3441	233Kb / 16P	High Current Micropower Synchronous Buck-Boost DC/DC Converter
List of Unclassifed Man...	XL4501	396Kb / 16P	5A 150KHz 36V Buck DC/DC Converter With Constant Current Loop
Bookly Micro electronic	NCM0450HV	921Kb / 6P	DC-DC BUCK CONVERTER

More results

SC198 bảng dữ liệu(PDF) 1 Page - Semtech Corporation

SC198 bảng dữ liệu(HTML) 1 Page - Semtech Corporation

Số phần tương tự - SC198

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