参数资料
| 型号： | TC115301EMTTR |
| 厂商： | Microchip Technology |
| 文件页数： | 1/14页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST 3V 0.1A SOT89-5 |
| 标准包装： | 1,000 |
| 类型： | 升压（升压） |
| 输出类型： | 固定 |
| 输出数： | 1 |
| 输出电压： | 3V |
| 输入电压： | 0.9 V ~ 10 V |
| 频率 - 开关： | 100kHz |
| 电流 - 输出： | 100mA |
| 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-89-5/6 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | SOT-89-5 |
M
TC115
PFM/PWM Step-Up DC/DC Converter
Features
? High Efficiency at Low Output Load Currents via
PFM Mode
Package Type
SOT-89-5
PS
? Assured Start-up at 0.9V
? 80 μA (Typ) Supply Current
5
GND
4
LX
? 85% Typical Efficiency at 100 mA
? 140 mA Typical Output Current @ V IN = 2.0V
? Low Power Shutdown Mode
? No External Switching Transistor Needed
NC
1
TC115
PS
2
SHDN
3
? Space-Saving SOT-89 Package
Applications
General Description
?
?
?
?
?
?
Pagers
Cellular Phones
Palmtops
1-Cell to 3-Cell Battery Powered Systems
Cameras, Video Recorders
Local +3V to +5V Supplies
The TC115 is a high-efficiency step-up DC/DC
converter for small, low input voltage or battery-
powered systems. This device has a start-up voltage
of 0.9V and a typical supply current of 80 μA. Phase
compensation and soft-start circuitry are included on-
chip. Unlike conventional PWM step-up converters,
the TC115 automatically shifts to pulse frequency
modulation (PFM) at low loads, resulting in reduced
supply current and improved efficiency.
The TC115 requires only an external diode, an inductor
and a capacitor, while supporting typical output cur-
rents of 140 mA. Supply current is reduced to less than
0.5 μA (max) when SHDN input is brought low.
Small size, low installed cost and low supply current
make the TC115 step-up converter ideal for use in a
wide range of battery-powered systems.
Functional Block Diagram
L 1
+
1.5V
+
C 1
10 μF
5
100 μH
Sumida ? CD-54
PS
4
D 1
IN5817 +
C 2
47 μF
Tantalum
+3V
OUT
GND
TC115
LX
NC
1
PS
2
SHDN
3
1.5V to +3V, 50 mA Supply
? 2003 Microchip Technology Inc.
DS21361C-page 1
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相关代理商/技术参数 |
参数描述 |
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| TC115331ECT | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:PFM/PWM Step-Up DC/DC Converter |
| TC115331EMTTR | 功能描述:开关变换器、稳压器与控制器 PFM/PWM Step-Up RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| TC115501ECT | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:PFM/PWM Step-Up DC/DC Converter |
| TC115501EMTTR | 功能描述:开关变换器、稳压器与控制器 PFM/PWM Step-Up RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| TC115A | 制造商:Thomas & Betts 功能描述:1 1/2" Compression Connector, Steel-Zinc Plated, Concrete tight 制造商:Thomas & Betts 功能描述:Fittings Connector 1.5inch Steel |
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