参数资料
| 型号： | SC4503TSKTRT |
| 厂商： | Semtech |
| 文件页数： | 4/22页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST ADJ 1.4A TSOT23-5 |
| 标准包装： | 1 |
| 类型： | 升压（升压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 可调至 27V |
| 输入电压： | 2.5 V ~ 20 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 1.3MHz |
| 电流 - 输出： | 1.4A |
| 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： | SOT-23-5 细型，TSOT-23-5 |
| 包装： | 标准包装 |
| 供应商设备封装： | TSOT-23-5 |
| 产品目录页面： | 1358 (CN2011-ZH PDF) |
| 其它名称： | SC4503TSKDKR |
SC4503
POWER MANAGEMENT
Pin Con ? guration - 2mm X 2mm MLPD
Ordering Information
Top View
Device (1,2)
Top Mark
Package
SW
1
8
NC
SC4503WLTRT
E00
2mmX2mm
MLPD-W
SW
IN
2
3
7
6
GND
GND
SC4503_MLPD EVB
Notes:
Evaluation Board
(1) Available in tape and reel only. A reel contains 3,000 devices.
SHDN/SS
4
5
FB
(2) Available in lead-free package only. Device is WEEE and
RoHS compliant.
8-LEAD 2X2mm MLPD-W
Pin Descriptions - 2X2mm MLPD-W
Pin
1,2
3
4
5
6,7
8
EDP
Pin Name
SW
IN
SHDN/SS
FB
GND
N.C.
Pin Functions
Collector of the internal power transistor. Connect to the boost inductor and the free-
wheeling diode. The maximum switching voltage spike at this pin should be limited to
34V.
Power Supply Pin. Bypassed with capacitor close to the pin.
Shutdown and Soft-start Pin. Pulling this pin below 0.4 shuts down the converter. Apply-
ing more than 2V at this pin enables the SC4503. An external resistor and an external
capacitor connected to this pin soft-start the switching regulator. The SC4503 will try
to pull the SHDN/SS pin below its 1.4V switching threshold regardless of the external
circuit attached to the pin if VIN is below the under-voltage lockout threshold. Tie this pin
through an optional resistor to IN or to the output of a controlling logic gate if soft-start is
not used. See Applications Information for more details.
The inverting input of the error ampli ? er. Tie to an external resistive divider to set the
output voltage.
Ground. Tie to ground plane.
No Connection.
Solder to the ground plane of the PCB.
? 2007 Semtech Corp.
4
www.semtech.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SC4503WLTRT | 功能描述:IC REG BOOST ADJ 1.4A 8MLPD RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:250 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON（1.45x1） 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2 |
| SC4505 | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:High Efficiency Boost Converter for Backlight/Flash LED Driver |
| SC4505_07 | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:High Efficiency Boost Converter for Backlight/Flash LED Driver |
| SC4505EVB | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:High Efficiency Boost Converter for Backlight/Flash LED Driver |
| SC4505EVB-1 | 制造商:Semtech Corporation 功能描述:EVALUATION BOARD |
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