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参数资料
| 型号： | TC115EV |
| 厂商： | Microchip Technology |
| 文件页数： | 1/14页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO FOR TC115 |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步升 |
| 输出及类型： | 1，非隔离 |
| 输出电压： | 3V |
| 电流 - 输出： | 110mA |
| 输入电压： | 0.9 ~ 3V |
| 稳压器拓扑结构： | 升压 |
| 频率 - 开关： | 100kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | TC115 |
| 产品目录页面： | 668 (CN2011-ZH PDF) |
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 |
|---|---|
| TC115-PB-B | 制造商:Carling Technologies 功能描述:T-SERIES ROCKER SWITCH - Bulk |
| TC115-SC-1 | 制造商:Thomas & Betts 功能描述:1 1/2 CONN,COMP.,EMT,STL,EA |
| TC115-TB | 制造商:Thomas & Betts 功能描述:CABLE MOUNTING BLOCK .5X1" #10 BOLT 制造商:Thomas & Betts 功能描述:Cable Accessories Mounting Base Nylon 6.6 Natural |
| TC115-TB-B | 制造商:Carling Technologies 功能描述:T-SERIES ROCKER SWITCH - Bulk |
| TC115-TW-W | 制造商:Carling Technologies 功能描述:T-SERIES ROCKER SWITCH - Bulk |
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