参数资料
| 型号： | SC2608BSTRT |
| 厂商： | Semtech |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 8-SOIC |
| 标准包装： | 1 |
| PWM 型： | 电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 275kHz |
| 占空比： | 90% |
| 电源电压： | 4 V ~ 14 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | 0°C ~ 85°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 包装： | 标准包装 |
| 其它名称： | SC2608BSDKR |
SC2608B
Simple, Synchronous
Voltage Mode PWM Controller
POWER MANAGEMENT
Description
Draft
The SC2608B is a versatile voltage-mode PWM control-
ler designed for use in step down DC/DC power supply
applications. A simple, fixed frequency, highly efficient
buck regulator can be implemented using the SC2608B
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.
SC2608B 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) .
The SC2608B operates at a fixed frequency of 250kHz
providing an optimum compromise between efficiency ,
external component size, and cost.
SC2608B has a thermal protection circuit, which is
activated if the junction temperature exceeds 150 O C.
Features
+5V or +12V input voltage
250kHz operation
High efficiency (>90%)
1.25% Voltage feedback accuracy over tempera-
ture
Hiccup mode over current protection
1.2A output drive
R DS(ON) Current sensing for protection
Industrial temperature range
Available in SO-8 and SO-8 EDP package
Integrated boot strap diode
Thermal Shut down
Fully WEEE and RoHS Compliant
Applications
Termination supplies
Low cost microprocessor supplies
Peripheral card supplies
Industrial power supplies
High density DC/DC conversion
Typical Application Circuit
Figure 1
Revision 4: Jan. 2007
1
www.semtech.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SC2608EVB | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Simple, Synchronous Voltage Mode PWM Controller |
| SC2608S.TRT | 制造商:Semtech Corporation 功能描述: |
| SC2608strt | 制造商:Semtech Corporation 功能描述: |
| SC260B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:TRIAC|200V V(DRM)|25A I(T)RMS|TO-208VAR1/4 |
| SC260B1 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:TRIAC|200V V(DRM)|25A I(T)RMS|TO-208AA |
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