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參數(shù)資料
| 型號： | AIC1639-50CZ |
| 廠商： | Analog Integrations Corporation |
| 英文描述： | 3-PIN ONE-CELL STEP-UP DC/DC CONVERTER |
| 中文描述： | 3引腳單細胞升壓型DC / DC變換器 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大?。?/td> | 159K |
| 代理商： | AIC1639-50CZ |
AIC1639
3-PIN ONE-CELL STEP-UP DC/DC CONVERTER
SPEC NO: DS-1639-00 05/26/00
ANALOG INTEGRATIONS CORPORATION
www.analog.com.tw
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. TEL: (8863)577-2500 FAX:(8863)577-2510
1
FEATURES
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Guaranteed Start-Up from Below 0.9 V.
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High Efficiency.
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Low Quiescent Current.
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Few Number of External Components needed.
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Low Ripple and Low Noise.
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Fixed Output Voltage: 2.7, 3.0V, 3.3V, and 5V.
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Driver for External Transistor.
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Space Saving SOT-89 and TO-92 Packages.
APPLICATIONS
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Pagers.
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Cameras.
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Wireless Microphones.
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Pocket Organizers.
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Battery Backup Suppliers.
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Portable Instruments.
DESCRIPTION
The AIC1639 is a high efficiency step-up DC/DC
converter for applications using 1 to 4 battery cells.
Only three external components are required to de-
liver a fixed output voltage of 2.7, 3.0V, 3.3V, or 5V.
The AIC1639 starts up from below 0.9V input with
1mA load. Pulse Frequency Modulation scheme
brings optimized performance for applications with
light output loading and low input voltages. The out-
put ripple and noise are lower compared with the
circuits operating in PSM mode.
The PFM control circuit operating in 100KHz (max.)
switching rate results in smaller passive compo-
nents. The space saving SOT-89 and TO-92 pack-
ages make the AIC1639 an ideal choice of DC/DC
converter for space conscious applications, like
pagers, electronic cameras, and wireless micro-
phones.
Provided with an external transistor driver pin (EXT),
the AIC1639 is recommended for applications re-
quiring current as large as several tens to several
hundreds of milli-amperes.
TYPICAL APPLICATION CIRCUIT
AIC1639-27
AIC1639-30
AIC1639-33
AIC1639-50
GND
C2
100
μ
F
+
EXT
D1
V
OUT
VOUT
Q1
2SD1803
10nF
R1 300
L1
33
μ
H
VIN
+
C2
47
μ
F
100mA Load Current Step-Up Converter
相關PDF資料 |
PDF描述 |
|---|---|
| AIC1640-30CN | LOW VOLTAGE STEP-UP DC/DC CONVERTER |
| AIC1640-30CS | LOW VOLTAGE STEP-UP DC/DC CONVERTER |
| AIC1640-33CN | LOW VOLTAGE STEP-UP DC/DC CONVERTER |
| AIC1640-33CS | LOW VOLTAGE STEP-UP DC/DC CONVERTER |
| AIC1640-50CN | LOW VOLTAGE STEP-UP DC/DC CONVERTER |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AIC1640 | 制造商:AIC 制造商全稱:Analog Intergrations Corporation 功能描述:LOW VOLTAGE STEP-UP DC/DC CONVERTER |
| AIC1640-30CN | 制造商:AIC 制造商全稱:Analog Intergrations Corporation 功能描述:LOW VOLTAGE STEP-UP DC/DC CONVERTER |
| AIC1640-30CS | 制造商:AIC 制造商全稱:Analog Intergrations Corporation 功能描述:LOW VOLTAGE STEP-UP DC/DC CONVERTER |
| AIC1640-33CN | 制造商:AIC 制造商全稱:Analog Intergrations Corporation 功能描述:LOW VOLTAGE STEP-UP DC/DC CONVERTER |
| AIC1640-33CS | 制造商:AIC 制造商全稱:Analog Intergrations Corporation 功能描述:LOW VOLTAGE STEP-UP DC/DC CONVERTER |
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