参数资料
| 型号： | SC120ULTRT |
| 厂商： | Semtech |
| 文件页数： | 1/32页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST SYNC 3.3V/ADJ 6MLPD |
| 标准包装： | 1 |
| 类型： | 升压（升压） |
| 输出类型： | 两者兼有 |
| 输出数： | 1 |
| 输出电压： | 3.3V，1.8 V ~ 5 V |
| 输入电压： | 0.7 V ~ 4.5 V |
| 频率 - 开关： | 1.2MHz |
| 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-MLPD-UT |
| 包装： | 标准包装 |
| 供应商设备封装： | 6-MLPD-UT（1.5x2.0） |
| 产品目录页面： | 1357 (CN2011-ZH PDF) |
| 其它名称： | SC120ULDKR |
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SC120
Low Voltage Synchronous
Boost Regulator
POWER MANAGEMENT
Features
Input voltage — 0.7V to 4.5V
Minimum input startup voltage — 0.865V
Output voltage — fixed at 3.3V; adjustable from 1.8V
to 5.0V
Peak input current limit — 1.2A
Output current at 3.3 V OUT — 80mA with V IN = 1.0V,
190mA with V IN = 1.5V
Effi ciency up to 94%
Internal synchronous rectifier
Switching frequency — 1.2MHz
Automatic power save
Anti-ringing circuit
Operating supply current (measured at OUT) — 50μA
Shutdown current — 0.1μA (typ)
No forward conduction path during shutdown
Available in ultra-thin 1.5 × 2.0 × 0.6 (mm)
MLPD-UT-6 and SOT23-6 packages
Lead-free and halogen-free
WEEE and RoHS compliant
Applications
MP3 players
Smart Phones and cellular phones
Palmtop computers and handheld Instruments
PCMCIA cards
Memory cards
Digital cordless phones
Description
The SC120 is a high efficiency, low noise, synchronous
step-up DC-DC converter that provides boosted voltage
levels in low-voltage handheld applications. The wide
input voltage range allows use in systems with single
NiMH or alkaline battery cells as well as in systems with
higher voltage battery supplies. It features an internal
1.2A switch and synchronous rectifier to achieve up to
94% effi ciency and to eliminate the need for an external
Schottky diode. The output voltage can be set to 3.3V
with internal feedback, or to any voltage within the speci-
fied range using a standard resistor divider.
The SC120 operates in Pulse Width Modulation (PWM)
mode for moderate to high loads and Power Save Mode
(PSAVE) for improved effi ciency under light load condi-
tions. It features anti-ringing circuitry for reduced EMI in
noise sensitive applications. Output disconnect capability
is included to reduce leakage current, improve effi ciency,
and eliminate external components sometimes needed to
disconnect the load from the supply during shutdown.
Low quiescent current is obtained despite a high 1.2MHz
operating frequency. Small external components and the
space saving MLPD-UT-6, 1.5×2.0×0.6 (mm) package, or
low cost SOT23-6 package, make this device an excellent
choice for small handheld applications that require the
longest possible battery life.
Personal medical products
Wireless VoIP phones
Small motors
Typical Application Circuit
L1
IN
LX
Single
Cell
EN
OUT
3.3V
(1.2V)
C IN
GND
FB
C OUT
SC120
April 30, 2010
? 2010 Semtech Corporation
1
相关PDF资料 |
PDF描述 |
|---|---|
| SC121ULTRT | IC REG BOOST SYNC 3.3V/ADJ 6MLPD |
| SC122ULTRT | IC REG BST SYNC 3.3V 95MA 6MLPD |
| SC1453ISK18TRT | IC REG LDO 1.8V .15A SOT-23-5 |
| SC1462ISKTRT | IC REG SWITCHD CAP DBL ADJ SOT23 |
| SC1485ITSTRT | IC REG CTRLR BUCK PWM 28-TSSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SC120-W13 | 制造商:GardTec Inc 功能描述:SC Series 107 mm Steel Bright Nickel Chrome 4 Place Screw Mount Fan Guard |
| SC120-W14 | 制造商:GardTec Inc 功能描述:SC Series 120 mm Steel Bright Nickel Chrome 4 Place Screw Mount Fan Guard |
| SC120-W14SS | 制造商:PRIVATE LABEL 功能描述:120MM WIRE FAN GUARD, 304 STAINLESS STEEL". |
| SC120-W2 | 制造商:GardTec Inc 功能描述:SC Series 115.6 mm Steel Bright Nickel Chrome 2 Place Screw Mount Fan Guard |
| SC120-W3 | 制造商:PRIVATE LABEL 功能描述:FINGER GUARD |
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