参数资料
| 型号： | SC4517AIMSTRT |
| 厂商： | Semtech |
| 文件页数： | 1/15页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 1.5A 8MSOP |
| 标准包装： | 1 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 可调 |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1.25MHz |
| 电流 - 输出： | 1.5A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 包装： | 标准包装 |
| 供应商设备封装： | 8-MSOP |
| 其它名称： | SC4517AIMSDKR |
SC4517A
1.25MHz, 1.5A Step-Down
Switching Regulator
POWER MANAGEMENT
Description
The SC4517A is a current mode switching regulator with
an integrated switch, operating at 1.25MHz with separate
sync & enable functions. The integrated switch allows
for cost effective low power solutions (peak switch current
1.5 amps). The sync function allows customers to
synchronize to a faster clock in order to avoid frequency
beating in noise sensitive applications. High frequency
of operation allows for very small passive components.
Current mode operation allows for fast dynamic response
& instantaneous duty cycle adjustment as the input varies
(ideal for CPE applications where the input is a wall plug
power).
The low shutdown current makes it ideal for portable
applications where battery life is important.
Features
Integrated 1.5 Amp switch
1.25MHz frequency of operation
Current mode controller
Synchronizable to higher frequency up to 2MHz
6μA low shutdown current
MSOP-8 and MLPD-8 Lead-free packages. This
product is fully WEEE and RoHS compliant
Applications
XDSL modems
CPE equipment
DC-DC point of load applications
Portable equipment
The SC4517A is a 1.25MHz switching regulator
synchronizable to a faster frequency from 1.6MHz to
2MHz.
Typical Application Circuit
D1
1
C1
VIN
Enable
2
5
IN
EN
BST
SC4517AXX
SW
FB
3
6
L1
R1
VOUT
C3
8
SYNC
GND
COMP
7
D2
C2
Revision: December 13, 2006
4
1
C4
R3
R2
www.semtech.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SC4517AIMSXXTRT | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:1.25MHz, 1.5A Step-Down Switching Regulator |
| SC4517EVB-1 | 制造商:Semtech Corporation 功能描述:EVALUATION BOARD 制造商:Semtech Corporation 功能描述:Portable Imvp-Iv And Imvp-Iv+ Single Phase Power Supply Controller |
| SC4517EVB-2 | 制造商:Semtech Corporation 功能描述:12VIN 5VOUT 0.5A IOUT 制造商:Semtech Corporation 功能描述:EVALUATION BOARD 制造商:Semtech Corporation 功能描述:Eval Board for SC4517 Step-Down Switching Regulator 制造商:Semtech Corporation 功能描述:SC4517A, SWITCHING REG, STEP DOWN, EVAL BOARD; Silicon Manufacturer:Semtech; Silicon Core Number:SC4517A; Kit Application Type:Power Management - Voltage Regulator; Application Sub Type:Step Down Switching Regulator ;RoHS Compliant: Yes |
| SC4518H | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:600kHz, 2A Step-Down Switching Regulator |
| SC4518HEVB | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:600kHz, 2A Step-Down Switching Regulator |
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