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參數(shù)資料
| 型號(hào)： | AIC1641 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | LOW VOLTAGE STEP-UP DC/DC CONVERTER |
| 中文描述： | 低電壓升壓型DC / DC變換器 |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大?。?/td> | 160K |
| 代理商： | AIC1641 |
AIC1641
LOW VOLTAGE STEP-UP DC/DC CONVERTER
SPEC NO: DS-1641-00 05/04/00
ANALOG INTEGRATIONS CORPORATION
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. TEL: (8863)577-2500 FAX:(8863)577-2510
www.analog.com.tw
1
FEATURES
!
Guaranteed Start-Up from Below 0.9 V.
!
High Efficiency.
!
Low Quiescent Current.
!
Fixed Output Voltage: 2.7V, 3.0V, 3.3V, and 5V.
!
Logic Controlled Shutdown.
!
External Switch Driver for High Power Level Applica-
tion.
APPLICATIONS
!
Pagers.
!
Cameras.
!
Wireless Microphones.
!
Pocket Organizers.
!
Battery Backup Suppliers.
!
Portable Instruments.
DESCRIPTION
The AIC1641 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 2.7V, 3.0V, 3.3V, or
5.0V.
Pulse Frequency Modulation scheme brings opti-
mized performance for applications with light output
loading and low input voltage. The output ripple
and noise are lower compared with the circuit op-
erating in PSM mode. The AIC1641 starts up from
below 0.9V input to boost either 2.7V, 3.0V, 3.3V,
or 5.0V output with 1mA load.
Some useful features include, shutdown mode for
saving the life of battery. The PFM control circuit
operates in 100KHz (max.) switching rate, resulting
in smaller passive component size, which makes
the AIC1641 an ideal choice of DC/DC converter
for space conscious applications.
TYPICAL APPLICATION CIRCUIT
R
B
300
C
B
10nF
Q1
2SD1803
+
C1
47
μ
F
L1
33
μ
H
D1
1N5819
V
OUT
V
IN
AIC1641
CE
EXT
V
OUT
GND
0.9V
One Cell Step-Up DC/DC Converter
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| AIC1641-27CW | LOW VOLTAGE STEP-UP DC/DC CONVERTER |
| AIC1641-27CS | LOW VOLTAGE STEP-UP DC/DC CONVERTER |
| AIC1641-30CS | LOW VOLTAGE STEP-UP DC/DC CONVERTER |
| AIC1641-30CW | LOW VOLTAGE STEP-UP DC/DC CONVERTER |
| AIC1641-33CS | LOW VOLTAGE STEP-UP DC/DC CONVERTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AIC1641-27CS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LOW VOLTAGE STEP-UP DC/DC CONVERTER |
| AIC1641-27CW | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LOW VOLTAGE STEP-UP DC/DC CONVERTER |
| AIC1641-30CS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LOW VOLTAGE STEP-UP DC/DC CONVERTER |
| AIC1641-30CW | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LOW VOLTAGE STEP-UP DC/DC CONVERTER |
| AIC1641-33CS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LOW VOLTAGE STEP-UP DC/DC CONVERTER |
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