SC195

更新时间： 2024-10-01 09:33:43

品牌	Logo	应用领域
商升特 - SEMTECH		稳压器
页数	文件大小	规格书
20页	473K
描述
3.5MHz, 500mA Synchronous Step Down DC-DC Regulator

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

SC195 数据手册

SC195

3.5MHz, 500mA Synchronous

Step Down DC-DC Regulator

POWER MANAGEMENT

Features

Description



Input Voltage — 2.9V to 5.5V

The SC195 is a high eﬃciency, 500mA step down regula-

tor designed to operate with an input voltage range of

2.9V to 5.5 V. The input voltage range makes it ideal for

battery operated applications with space limitations. The

SC195 also includes ﬁfteen programmable output voltage

settings that can be selected using the four control pins,

eliminating the need for external feedback resistors. The

output voltage can be ﬁxed to a single setting or dynami-

cally switched between diﬀerent levels. Pulling all four

control pins low disables the output.

Output Voltage — 0.8V to 3.3V

Output current capability — 500mA

Eﬃciency up to 94%

15 Programmable output voltages

High light-load eﬃciency via automatic PSAVE mode

Fast transient response

Temperature range — -40 to +85°C

Oscillator frequency — 3.5MHz

100% duty cycle capability

Quiescent current — 38µA typ

Shutdown Current — 0.1µA typ

Internal soft-start

The SC195 operates at a ﬁxed 3.5MHz switching frequency

in normal PWM (Pulse-Width Modulation) mode. A vari-

able frequency PSAVE (power-save) mode is used to

optimize eﬃciency at light loads for each output setting.

Built-in hysteresis prevents chattering between the two

modes.

Over-voltage protection

Current limit and short circuit protection

Over-temperature protection

Under-voltage lockout

Floating control pin protection

MLPQ-UT8 1.5 x 1.5 x 0.6 (mm) package

Pb free, halogen free, and RoHS/WEEE compliant

The SC195 provides several protection features to safe-

guard the device under stressed conditions. These

include short circuit protection, over-temperature protec-

tion, under-voltage lockout, and soft-start to control

in-rush current. These features, coupled with the small

1.5 x 1.5 x 0.6 (mm) package make the SC195 a versatile

device ideal for step-down regulation in products needing

high eﬃciency and a small PCB footprint.

Applications



Smart phones and cellular phones

MP3/Personal media players

Personal navigation devices

Digital cameras

Single Li-ion cell or 3 NiMH/NiCd cell devices

Devices with 3.3V or 5V internal power rails

Typical Application Circuit

SC195

L_X

1.0µH

V_IN

2.9V to 5.5V

V_OUT

0.8V to 3.3V

C_IN

4.7µF

OUT

CTL3

CTL2

CTL1

CTL0

C_OUT

10µF

Control Logic

Lines

GND

June 29, 2010

12 3 4 5 6 7...20

中文翻译

下载PDF

与SC195相关器件

型号	品牌	获取价格	描述	数据表
SC195_10	SEMTECH	获取价格	3.5MHz, 500mA Synchronous Step Down DC-DC Regulator
SC1959	ETC	获取价格	Mini size of Discrete semiconductor elements
SC195B	SEMTECH	获取价格	3.5MHz, 500mA Synchronous Step Down DC-DC Regulator
SC195BCSTRT	SEMTECH	获取价格	3.5MHz, 500mA Synchronous Step Down DC-DC Regulator
SC195BEVB	SEMTECH	获取价格	3.5MHz, 500mA Synchronous Step Down DC-DC Regulator
SC195EVB	SEMTECH	获取价格	3.5MHz, 500mA Synchronous Step Down DC-DC Regulator
SC195F	SEMTECH	获取价格	3.5MHz, 500mA Synchronous Step Down DC-DC Regulator
SC195FEVB	SEMTECH	获取价格	3.5MHz, 500mA Synchronous Step Down DC-DC Regulator
SC195FULTRT	SEMTECH	获取价格	3.5MHz, 500mA Synchronous Step Down DC-DC Regulator
SC195ULTRT	SEMTECH	获取价格	3.5MHz, 500mA Synchronous Step Down DC-DC Regulator

与SC195相关文章

塔塔电子与力积电达成技术转让协议，携手建设印度首座晶圆厂
2024-09-29

38
英特尔震撼发布：128核心256线程的至强6性能核处理器
2024-09-29

32
SK海力士量产12层HBM3E，容量高达36GB
2024-09-27

28
意法半导体传感器驱动Sphere，开启沉浸式电影新时代
2024-09-27

40

产品中心

服务支持

精选活动

关于我们

帮助中心

SC195

SC195 数据手册

与SC195相关器件

与SC195相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

SC195

SC195 数据手册

与SC195相关器件

与SC195相关文章

您还可以找

您在本页遇到什么问题？