参数资料
| 型号： | SC283WLTRT |
| 厂商： | Semtech |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 1.8A 18MLPQ |
| 标准包装： | 1 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 2 |
| 输出电压： | 0.8 V ~ 3.3 V |
| 输入电压： | 2.9 V ~ 5.5 V |
| 频率 - 开关： | 2.5MHz |
| 电流 - 输出： | 1.8A |
| 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： | 18-WFQFN 裸露焊盘 |
| 包装： | 标准包装 |
| 供应商设备封装： | 18-MLPQ-W（2x3） |
| 其它名称： | SC283WLDKR |
SC283
Dual Channel 2.5MHz, 1.8A
POWER MANAGEMENT
Features
Synchronous Step-Down Regulator
Description
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V IN Range: 2.9 – 5.5V
V OUT Selectable: 0.8 - 3.3V
Up to 1.8A Output Current for Each Channel
Ultra-Small Footprint, <1mm Height Solution
2.5MHz Switching Frequency
Efficiency Up to 93%
Low Output Noise Across Load Range
Excellent Transient Response
Start Up into Pre-Bias Output
100% Duty-Cycle Low Dropout Operation
<1μA Shutdown Current
Internal Soft Start
Input Under-Voltage Lockout
Output Over-Voltage, Current Limit Protection
Over-Temperature Protection
Adjustable Output Voltage
2mm x 3mm x 0.8mm thermally enhanced
MLPQ-W18 package
-40 to +85°C Temperature Range
Pb-Free product. RoHS/WEEE and Halogen Free com-
pliant
The SC283 is a dual channel 1.8A synchronous step-
down regulator designed to operate with an input
voltage range of 2.9 to 5.5 Volts. Each channel offers
fifteen pre-determined output voltages via four control
pins programmable from 0.8 to 3.3 Volts. The control pins
allow for on-the-fly voltage changes, enabling system
designers to implement dynamic power savings. The
SC283 is also capable of adjusting the output voltage via
an external resistor divider.
The device operates with a fixed 2.5MHz oscillator
frequency, allowing the use of small surface mount
external components.
Connecting CTL0 — CTL3 to logic low forces the device
into shutdown mode reducing the supply current to less
than 1μA. Connecting any of the control pins to logic
high enables the converter and sets the output voltage
according to Table 1. Other features include under-
voltage lockout, soft-start to limit inrush current, and
over-temperature protection.
The SC283 is available in a thermally-enhanced, 2mm
x 3mm x 0.8mm MLPQ-W18 package and has a rated
Applications
temperature range of -40 to +85°C.
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Desktop Computing
Set-Top Box
LCD TV
Network Cards
Printer
Typical Application Circuit
July 20, 2010
1
www.semtech.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SC284 | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Dual Channel 2.5MHz, 1.8A Synchronous Step-Down Regulator |
| SC284ULTRT | 制造商:Semtech Corporation 功能描述:Conv DC-DC Dual Step Down 2.9V to 5.5V 20-Pin MLPQ EP T/R |
| SC28-6 | 制造商:Thomas & Betts 功能描述:IDENTIFICATION TAGS |
| SC286ULTRT | 功能描述:IC REG BUCK SYNC ADJ 4A 28MLPQ 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:1,000 系列:- 类型:降压（降压） 输出类型:可调式 输出数:1 输出电压:0.6 V ~ 4.5 V 输入电压:3 V ~ 5.5 V PWM 型:电流模式 频率 - 开关:3MHz 电流 - 输出:1.5A 同步整流器:无 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:6-WDFN 裸露焊盘 包装:带卷 (TR) 供应商设备封装:6-LLP-EP（3x3） 产品目录页面:1300 (CN2011-ZH PDF) 其它名称:LM2831ZSDLM2831ZSDTR |
| SC28829PK04 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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