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參數資料
| 型號： | TC115301ECTTR |
| 元件分類： | 穩壓器 |
| 英文描述： | 0.4 A SWITCHING REGULATOR, 115 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封裝： | SOT-89, 5 PIN |
| 文件頁數： | 1/14頁 |
| 文件大小： | 468K |
| 代理商： | TC115301ECTTR |
2002 Microchip Technology Inc.
DS21361B-page 1
TC115
Features
High Efficiency at Low Output Load Currents via
PFM Mode
Assured Start-up at 0.9V
80
A (Typ) Supply Current
85% Typical Efficiency at 100mA
140mA Typical Output Current @ VIN = 2.0V
Low Power Shutdown Mode
No External Switching Transistor Needed
Space Saving SOT-89 Package
Applications
Pagers
Cellular Phones
Palmtops
1-Cell to 3-Cell Battery Powered Systems
Cameras, Video Recorders
Local +3V to +5V Supplies
Device Selection Table
*Other
output
voltages
are
available.
Please
contact
Microchip Technology for details.
Package Type
General Description
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
A. 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, and supports typical output
currents of 140mA. Supply current is reduced to less
than 0.5
A, 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
Part
Number
Output
Voltage
(V)*
Package
Osc.
Freq.
(kHz)
Operating
Temp.
Range
TC115501ECT
5.0
SOT-89-5 100 -40°C to +85°C
TC115331ECT
3.3
SOT-89-5 100 -40°C to +85°C
TC115301ECT
3.0
SOT-89-5 100 -40°C to +85°C
5
4
TC115
1
3
2
GND
LX
NC
PS
SHDN
SOT-89-5
1.5V
C1
10
F
L1
100
H
Sumida
CD-54
1.5V to +3V, 50mA Supply
5
4
TC115
1
3
2
SHDN
PS
NC
C2
47
F
Tantalum
IN5817
D1
GND
LX
+3V
OUT
+
–
+
PFM/PWM Step-Up DC/DC Converter
相關PDF資料 |
PDF描述 |
|---|---|
| TC115331ECTTR | 0.4 A SWITCHING REGULATOR, 115 kHz SWITCHING FREQ-MAX, PDSO5 |
| TC115501ECTTR | 0.4 A SWITCHING REGULATOR, 115 kHz SWITCHING FREQ-MAX, PDSO5 |
| TC115301EMTTR | 0.4 A SWITCHING REGULATOR, 115 kHz SWITCHING FREQ-MAX, PDSO6 |
| TC115331EMT | 0.4 A SWITCHING REGULATOR, 115 kHz SWITCHING FREQ-MAX, PDSO6 |
| TC115501EMTRT | 0.4 A SWITCHING REGULATOR, 115 kHz SWITCHING FREQ-MAX, PDSO6 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TC115301EMTTR | 功能描述:開關變換器、穩壓器與控制器 PFM/PWM Step-Up RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| TC115331ECT | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:PFM/PWM Step-Up DC/DC Converter |
| TC115331EMTTR | 功能描述:開關變換器、穩壓器與控制器 PFM/PWM Step-Up RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| TC115501ECT | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:PFM/PWM Step-Up DC/DC Converter |
| TC115501EMTTR | 功能描述:開關變換器、穩壓器與控制器 PFM/PWM Step-Up RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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