SC2608A

更新时间： 2024-09-27 04:05:27

品牌	Logo	应用领域
商升特 - SEMTECH		控制器
页数	文件大小	规格书
15页	348K
描述
Simple, Synchronous Voltage Mode PWM Controller

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SC2608A 数据手册

SC2608A

Simple, Synchronous

Voltage Mode PWM Controller

POWER MANAGEMENT

Description

Features

+5V or +12V input voltage

The SC2608A is a versatile voltage-mode PWM control-

ler designed for use in step down DC/DC power supply 250kHz operation

applications. A simple, fixed frequency, highly efficient

buck regulator can be implemented using the SC2608A

with minimal external components. The input voltage

range is from +5V to +12V. Internal level shift and drive

circuitry eliminates the need for an expensive P-channel,

high-side MOSFET. The small device footprint allows for

compact circuit design.

High efficiency (>90%)

1.5% Reference voltage accuracy

Hiccup mode over current protection

Robust output drive

R_DS(ON)Current sensing for protection

Industrial temperature range

SO-8 package

Integrated boot strap diode

Thermal Shut down

Fully WEEE and RoHS Compliant

SC2608A features include temperature compensated

voltage reference, triangle wave oscillator, current limit

comparator, and an externally compensated error ampli-

fier. Current limit is implemented by sensing the voltage

drop across the bottom MOSFET R_DS(ON)

Applications

The SC2608A operates at a fixed frequency of 250kHz

providing an optimum compromise between efficiency ,

external component size, and cost.

Termination supplies

Low cost microprocessor supplies

Peripheral card supplies

Industrial power supplies

High density DC/DC conversion

SC2608A has a thermal protection circuit, which is

activated if the junction temperature exceeds 150 C.

Typical Application Circuit

SC2608A

SC2608

sense

COMP/SS SENSE

+12V/+5V/+3.3V

+12V

GND

VCC

PHASE

BST

VOUT

sense

Figure 1

www.semtech.com

Revision 2: April, 2006

12 3 4 5 6 7...15

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SC2608AEVB	SEMTECH	获取价格	Simple, Synchronous Voltage Mode PWM Controller
SC2608ASTRT	SEMTECH	获取价格	Simple, Synchronous Voltage Mode PWM Controller
SC2608B	SEMTECH	获取价格	Simple, Synchronous Voltage Mode PWM Controller
SC2608BEVB	SEMTECH	获取价格	Simple, Synchronous Voltage Mode PWM Controller
SC2608BSTRT	SEMTECH	获取价格	Simple, Synchronous Voltage Mode PWM Controller
SC2608EVB	SEMTECH	获取价格	Simple, Synchronous Voltage Mode PWM Controller
SC2608STRT	SEMTECH	获取价格	Simple, Synchronous Voltage Mode PWM Controller
SC260B	ASI	获取价格	TRIAC, 200V V(DRM), 25A I(T)RMS,
SC260B1	ETC	获取价格	TRIAC\|200V V(DRM)\|25A I(T)RMS\|TO-208AA
SC260B2	ETC	获取价格	TRIAC\|200V V(DRM)\|25A I(T)RMS\|IST-3RT-1/4