SC3303 datasheet(1/26 Pages) SEMTECH

부품명	SC3303

상세설명	3A EcoSpeed Step-Down Regulator with LDO and Ultrasonic Power Save

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제조업체	SEMTECH [Semtech Corporation]

홈페이지	http://www.semtech.com

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1

POWER MANAGEMENT

1

SC3303

3A EcoSpeed® Step-Down Regulator

with LDO and Ultrasonic Power Save

Typical Application Circuit

Rev. 2.0

Features

Input voltage — 5.5V to 28V

Output voltage — 0.75V to 7.5V

Output current — Up to 3A

Internal reference — + 1%

Small ceramic capacitors

Power good pin (open-drain)

Adaptive on-time control:

Excellent transient response

Programmable pseudo-fixed frequency during

CCM

Fault protection features:

Cycle-by-cycle current limit

Short circuit protection

Over and under output voltage protection

Over-temperature

Internal soft-start

Ultrasonic power save and smart PSAVE

Internal LDO for bias voltage

Ultra-small lead-free 3 x 3(mm), 10-Pin MLPD package

WEEE and RoHS compliant and halogen free

Applications

Networking Equipment, Embedded Systems

Medical Equipment, Office Automation

Instrumentation, Portable Systems

Consumer Devices such as DTV and Set-top Boxes

POL Converters

•

Description

The SC3303 is an integrated, synchronous 3A EcoSpeed

®

step-down regulator. It incorporates Semtech’s advanced,

patented adaptive on-time architecture to achieve best-

in-class dynamic performance using point-of-load appli-

cations. The input voltage range is 5.5V to 28V with a

programmable output voltage from 0.75V up to 7.5V. The

device features an internal LDO and ultrasonic PSAVE

mode for high efficiency across the output load range.

Adaptive on-time control provides programmable

pseudo-fixed frequency operation in continuous conduc-

tion and excellent transient performance. The switching

frequency can be set from 200kHz to 1MHz, allowing the

designer to reduce external LC filtering and minimize light

load (standby) losses.

Additional features include cycle-by-cycle current limit,

soft start, input UVLO and output OV protection, and over

temperature protection. The open-drain PGOOD pin pro-

vides output status. Standby current is less than 10μA

when disabled.

The device is available in a low profile, thermally enhanced

MLPD 3 x 3mm 10-pin package.

SC3303

EN

VIN

TON

LDO

LX

BST

VOUT

Enable

VIN

FB

PGOOD

CIN

CLDO2

RTON

L1

CBST

COUT

RTOP

RBOT

PGOOD

CLDO1

PGND

AGND

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Semtech Corporation	SC33001A	457Kb / 14P	3A Low VIN Ultra-Low Rdson Load Switch
	SC33001A-EVB	457Kb / 14P	3A Low VIN Ultra-Low Rdson Load Switch
	SC33001ACSTRT	457Kb / 14P	3A Low VIN Ultra-Low Rdson Load Switch
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유사한 설명 - SC3303

제조업체	부품명	데이터시트	상세설명
Semtech Corporation	SC173	717Kb / 27P	3A EcoSpeedTM Synchronous Step-Down Regulator with Optional Ultrasonic Power Save
	SC174	718Kb / 27P	4A EcoSpeedTM Synchronous Step-Down Regulator with Optional Ultrasonic Power Save
	SC171	622Kb / 27P	1A EcoSpeedTM Synchronous Step-Down Regulator with Optional Ultrasonic Power Save
	SC172	622Kb / 27P	2A EcoSpeedTM Synchronous Step-Down Regulator with Optional Ultrasonic Power Save
	SC173A	663Kb / 26P	3A EcoSpeedTM Synchronous Step-Down Regulator with Automatic Power Save
	SC410	614Kb / 26P	3A EcoSpeed TM Step-Down Regulator with LDO and Ultrasonic Power Save
	SC171	590Kb / 27P	Regulator with Optional Ultrasonic Power Save
	SC410A	807Kb / 26P	2A EcoSpeed Step-Down Regulator with LDO and Power Save
	SC171	590Kb / 27P	1A EcoSpeedTM Synchronous Step-Down Regulator with Optional Ultrasonic Power Save
	SC3203	1Mb / 20P	3A EcoSpeed짰 Step-Down Regulator with Power Save

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SC3303 데이터시트(PDF) 1 Page - Semtech Corporation

SC3303 데이터시트(HTML) 1 Page - Semtech Corporation

유사한 부품 번호 - SC3303

유사한 설명 - SC3303

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