Datasheet > SC3303

SC3303

更新时间： 2024-11-21 01:19:15

品牌	Logo	应用领域
商升特 - SEMTECH		/
页数	文件大小	规格书
26页	516K
描述
3A EcoSpeed Step-Down Regulator with LDO and Ultrasonic Power Save

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SC3303 数据手册

SC3303

3A EcoSpeed^®Step-Down Regulator

with LDO and Ultrasonic Power Save

POWER MANAGEMENT

Features

Description

Input voltage — 5.5V to 28V

Output voltage — 0.75V to 7.5V

Output current — Up to 3A

Internal reference — + 1%

Small ceramic capacitors

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.

Power good pin (open-drain)

Adaptive on-time control:

•

Excellent transient response

Programmable pseudo-fixed frequency during

CCM

•

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.

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

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.

Applications

The device is available in a low proﬁle, thermally enhanced

MLPD 3 x 3mm 10-pin package.

Networking Equipment, Embedded Systems

Medical Equipment, Oﬃce Automation

Instrumentation, Portable Systems

Consumer Devices such as DTV and Set-top Boxes

POL Converters

Typical Application Circuit

SC3303

Enable

V_IN

PGOOD

C_BST

VIN

BST

V_OUT

TON

LDO

C_OUT

C_IN

R_TON

R_TOP

C_LDO2

C_LDO1

AGND

PGND

R_BOT

Rev. 2.0

12 3 4 5 6 7...26

中文翻译

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与SC3303相关器件

型号	品牌	获取价格	描述	数据表
SC3303MLTRT	SEMTECH	获取价格	3A EcoSpeed Step-Down Regulator with LDO and Ultrasonic Power Save
SC3306	AMCC	获取价格	20-OUTPUT LVTTL CLOCK DRIVERS
SC33063A	ONSEMI	获取价格	1.5 A, Step−Up/Down/ Inverting Switching Regulators
SC33063ADR2G	ONSEMI	获取价格	1.5 A, Step−Up/Down/ Inverting Switching Regulators
SC3306Q	AMCC	获取价格	Low Skew Clock Driver, LVTTL Series, 20 True Output(s), 0 Inverted Output(s), BICMOS, PQFP
SC3306Q-1	AMCC	获取价格	Low Skew Clock Driver, LVTTL Series, 20 True Output(s), 0 Inverted Output(s), BICMOS, PQFP
SC3306Q-1/D	AMCC	获取价格	Low Skew Clock Driver, LVTTL Series, 20 True Output(s), 0 Inverted Output(s), BICMOS, PQFP
SC3306Q-1/TD	AMCC	获取价格	Low Skew Clock Driver, LVTTL Series, 20 True Output(s), 0 Inverted Output(s), BICMOS, PQFP
SC3308	AMCC	获取价格	20-OUTPUT LVTTL CLOCK DRIVERS
SC3308F	BEL	获取价格	SMD POWER INDUCTORS Open frame construction

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