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參數(shù)資料
| 型號： | APW7077AZBI-TR |
| 廠商： | Anpec Electronics Corporation |
| 元件分類： | DC/DC變換器 |
| 英文描述： | PWM Step-Up DC-DC Converter |
| 中文描述： | PWM升壓型DC - DC轉(zhuǎn)換器 |
| 文件頁數(shù)： | 1/21頁 |
| 文件大?。?/td> | 444K |
| 代理商： | APW7077AZBI-TR |
Copyright
ANPEC Electronics Corp.
Rev. A.4 - S ep, 2005
APW 7077/ A
www.anpec.com.tw
1
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise
customers to obtain the latest version of relevant information to verify before placing orders.
PWM Step-Up DC-DC Converter
Features
General Description
Applications
Cellular and Portable Phones
Portable Audio
Camcorders and Digital Still Camera
Hand-held Instrument
PDAs
The APW7077/A series are multi- function PWM
step-up DC-DC converter with an adaptive voltage mode
controller and higher efficiency application from one to
four cells battery packs. The APW7077/A series are
set PWM operating mode, voltage-mode to follow
portable application. And built-in driver pin, EXT pin,
for connecting to an external transistor or MOSFET
during light load, the device will automatically skip
switching cycles to maintain high efficiency. The
APW7077/A series consists of PWM controller,
reference voltage, phase compensation, oscillator,
soft-start, driver block. It will provide to operate suitable
voltage without external compensation circuit. The
APW7077/A series have fixed voltage and adjustable
voltage version from a wide input voltage ranges 0.7V
to 5.5V for step-up DC-DC converter. The start-up is
guaranteed at 1V and the device is operating down to
0.7V. And providing up to 300mA loading current.
Besides, low quiescent current (switch-off) is
guaranteed.
Low Start-up Voltage 0.9V
Fixed 300kHZ Operating Frequency
Built-In Internal Soft Start Circuit
Low Operating Current
3.3V and 5V (
±
2.5%) Fixed (APW7077) or
Adjustable Output Voltage (APW7077A)
High Efficiency Up to 88% at 400mA
Output Current
High Output Current Up to 1A
Compact Package: SOT-23-5
Lead Free Available (RoHS Compliant)
Pinouts
V
OUT
CE
NC
GND
EXT
1
2
3
4
5
SOT-23-5 (Top View)
V
DD
FB
CE
GND
EXT
1
2
3
4
5
SOT-23-5 (Top View)
APW7077A
APW7077
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| APW7077AZBI-TRL | PWM Step-Up DC-DC Converter |
| APW7077AZBI-TU | PWM Step-Up DC-DC Converter |
| APW7078 | Single Step-up DC/DC Controller |
| APW7078OI-TR | Single PWM Switching Controller |
| APW7078OI-TRL | Single PWM Switching Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| APW7077AZBI-TRL | 制造商:ANPEC 制造商全稱:Anpec Electronics Coropration 功能描述:PWM Step-Up DC-DC Converter |
| APW7077AZBI-TU | 制造商:ANPEC 制造商全稱:Anpec Electronics Coropration 功能描述:PWM Step-Up DC-DC Converter |
| APW7077AZBI-TUL | 制造商:ANPEC 制造商全稱:Anpec Electronics Coropration 功能描述:PWM Step-Up DC-DC Converter |
| APW7077RBI-TR | 制造商:ANPEC 制造商全稱:Anpec Electronics Coropration 功能描述:PWM Step-Up DC-DC Converter |
| APW7077RBI-TRL | 制造商:ANPEC 制造商全稱:Anpec Electronics Coropration 功能描述:PWM Step-Up DC-DC Converter |
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