参数资料
| 型号： | SC4518HSETRT |
| 厂商： | Semtech |
| 文件页数： | 1/15页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK 2A 8-SOIC |
| 标准包装： | 1 |
| 类型： | 降压（降压） |
| 输出数： | 1 |
| 输入电压： | 4.4 V ~ 24 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 600kHz |
| 电流 - 输出： | 2A |
| 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-SOIC（0.154"，3.90mm 宽） |
| 包装： | 标准包装 |
| 供应商设备封装： | 8-SO 裸露焊盘 |
| 产品目录页面： | 1358 (CN2011-ZH PDF) |
| 其它名称： | SC4518HSEDKR |
SC4518H
600kHz, 2A Step-Down
Switching Regulator
POWER MANAGEMENT
Description
The SC4518H is a current mode switching regulator with
an integrated switch, operating at 600kHz with separate
sync and enable functions. The integrated switch allows
for cost effective low power solutions (peak switch current
2 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
and 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
Wide operating voltage range: 4.4V to 24V
Integrated 2 Amp switch
600kHz frequency of operation
Current mode controller
Synchronizable to higher frequency up to 1.2MHz
Precision enable threshold
SO-8 EDP package. Lead free product, fully WEEE
and RoHS compliant
Applications
XDSL modems
CPE equipment
DC-DC point of load applications
Portable equipment
The SC4518H is a 600kHz switching regulator
synchronizable to a faster frequency from 750kHz to
1.2MHz.
Typical Application Circuit
D1
1
C1
VIN
Enable
2
5
IN
EN
BST
SC4518H
SW
FB
3
6
L1
R1
VOUT
C3
8
SYNC
GND
COMP
7
D2
C2
Revision: August 22, 2007
4
C4
R3
1
R2
www.semtech.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SC4518ISTRT | 制造商:Semtech Corporation 功能描述:Conv DC-DC Single Step Down 3V to 16V 8-Pin SOIC T/R 制造商:Semtech Corporation 功能描述:IC 1.5 AMP STP DWN SWTCH REG 制造商:Semtech Corporation 功能描述:Voltage Regulator IC Leaded Process Comp 制造商:Semtech Corporation 功能描述:SC Series 3 to 16 V 600 kHz SMT Step-Down Switching Regulator - SOIC-8LEDP |
| SC4519 | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:600kHz, 3A Step-Down Switching Regulator |
| SC4519ASETRT | 制造商:Semtech Corporation 功能描述: |
| SC4519H | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:600kHz, 3A Step-Down Switching Regulator |
| SC4519H_07 | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:600kHz, 3A Step-Down Switching Regulator |
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