参数资料
| 型号： | SC630AULTRT |
| 厂商： | Semtech |
| 文件页数： | 1/15页 |
| 文件大小： | 0K |
| 描述： | IC REG SWITCHED CAP 3.3V 8MLPD |
| 标准包装： | 1 |
| 类型： | 切换式电容器（充电泵） |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 3.3V |
| 输入电压： | 2.95 V ~ 5.5 V |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 300mA |
| 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-UFDFN 裸露焊盘 |
| 包装： | 标准包装 |
| 供应商设备封装： | 8-MLPD（2x2） |
| 其它名称： | SC630AULDKR |
SC630A
1MHz Fixed 3.3V Output
Charge Pump Regulator
POWER MANAGEMENT
Features
Description
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Input voltage range — 2.95V to 5.5V
V OUT tolerance — 3.3V ±3%
Continuous output current — 300mA max
Three charge pump modes — x, .5x and 2x
Output ripple voltage — 33mV PP , typical
Short circuit, over-voltage, and over-temperature
protection
Soft-start functionality
Shutdown current — 0. μA, typical
Ultra thin package — 2 x 2 x 0.6 (mm)
Lead-free and halogen-free
The SC630A is a high-current voltage regulator using
Semtech’s proprietary low-noise charge pump technol-
ogy. The charge pump provides a low EMI solution
compared to inductive boost regulators. Performance is
optimized for use in single Li-Ion battery cell applications.
The regulator provides the performance of a linear, low
drop-out (LDO) voltage regulator when the battery is
greater than 3.3V. Unlike an LDO, drop-out is avoided
when the battery is less than 3.3V. Instead, a charge pump
is activated to provide voltage boost and the head-room
needed for regulation.
? WEEE and RoHS compliant
Applications
The SC630A’s charge pump has three modes of operation:
2x, .5x, and x modes. The 2x and .5x modes deliver
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Mobile phones
Tablets
USB On-The-Go
Multi-LED backlit LCDs
Compact flash/CF+ products
Digital video cameras
DVI/HDMI ports
Wi-Fi base stations
Modems
Set-top boxes
current to the load in each of two phases. The x mode
turns off the charge pump, delivering current through an
LDO. Hysteresis is provided to prevent chatter between
charge pump modes. When active, the charge pump pro-
vides low-ripple operation at MHz. Typically the output
ripple is % of the output voltage — 33mVpp at 2 5mA.
A small 2.2μF capacitor is recommended for all four capaci-
tors. The full rated output current is provided when 2.2μF
is used for both bucket capacitors. At the output, a 2.2μF
capacitor decouples the load and provides smoothing for
mode transitions, while another 2.2μF is used to decouple
the input.
Typical Application Circuit
V BAT
C IN
2.2μF
IN
OUT
V OUT = 3.3V @ 300mA
C OUT
2.2μF
SC630A
Chip
enable
EN
GND
C1+
C1-
C2+
C2-
C 1
2.2μF
C 2
2.2μF
US Patent: 7,808,220
Rev. .
? 20 Semtech Corporation
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SC630EVB | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Fixed 3.3V High Output Charge Pump Buck/Boost Regulator |
| SC630JW | 功能描述:音频指示器及警报器 SLOW WARBLE, 6-30VDC MEDIUM RoHS:否 制造商:PUI Audio 产品:Indicators 声压级:85 dB 音调:Continuous 频率:2300 Hz +/- 300 Hz 电压额定值:5 VDC 电流额定值:30 mA 端接类型: 直径:12 mm 安装:Through Hole |
| SC630JWR | 功能描述:音频指示器及警报器 SLOW WARBLE, 6-30VDC MEDIUM RoHS:否 制造商:PUI Audio 产品:Indicators 声压级:85 dB 音调:Continuous 频率:2300 Hz +/- 300 Hz 电压额定值:5 VDC 电流额定值:30 mA 端接类型: 直径:12 mm 安装:Through Hole |
| SC630ULTRT | 制造商:Semtech Corporation 功能描述:Charge Pump STPUP/STPDN 3.3V 400mA 8-Pin MLPD-UT EP T/R |
| SC631 | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Fixed 4.4V Output Charge Pump Regulator |
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