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參數(shù)資料
| 型號(hào)： | AIC1621COTR |
| 廠商： | Analog Integrations Corporation |
| 英文描述： | High Efficiency Synchronous Step-Up DC/DC Converter |
| 中文描述： | 高效率同步降壓型DC / DC轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大小： | 456K |
| 代理商： | AIC1621COTR |
AIC1620/AIC1621/AIC1622
High Efficiency Synchronous Step-Up DC/DC
Converter
Analog Integrations Corporation
4F, 9 Industry E. 9th Rd, Science-Based Industrial Park, Hsinchu, Taiwan
DS-1620-00 032502
TEL: 886-3-5772500
FAX: 886-3-5772510
www.analog.com.tw
1
n
FEATURES
l
High Efficiency 93% (V
IN
=2.4V, V
OUT
=3.3V,
I
OUT
=200mA).
l
20
μ
A Quiescent Supply Current.
l
Power-Saving Shutdown Mode (0.1
μ
A typical).
l
Internal Synchronous Rectifier ( no external
diode )
l
Selectable Current Limit for Reduced Ripple
( AIC1622 ).
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Low Noise , Anti-Ringing Feature ( AIC1622 )
l
On-Chip Low Battery Detector.
l
Low Battery Hysteresis
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APPLICATIONS
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Palmtop & Notebook Computers.
l
PDAs
l
Wireless Phones
l
Pocket Organizers.
l
Cameras.
l
1 to 2-Cell Hand-Held Devices
n
DESCRIPTION
The AIC1620/AIC1621/AIC1622 are high effi-
ciency step up DC-DC converter. The start-up
voltage is as low as 0.8V and operate with an
input voltage down to 0.7V. Consuming only
20
μ
A of quiescent current. These devices offer
a built-in synchronous rectifier that reduces
size and cost by eliminating the need for an ex-
ternal Schottky diode and improves overall effi-
ciency by minimizing losses.
The switching frequency depends on the load
and the input voltage can range up to 500KHz.
The peak current of the internal switch is fixed
at 0.8A (AIC1620), at 0.45A (AIC1621), or is
selectable (AIC1622) for design flexibility. Rip-
ple does not exceed the product of the switch
current limit and the filter capacitor equivalent
series resistance (ESR). The AIC1622 also fea-
tures a circuit that eliminates noise due to in-
ductor ringing.
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TYPICAL APPLICATION CIRCUIT
Output 3.3V, or
Adj. (1.8V to 4.0V)
up to 300mA
220
μ
F
Low-Battery
Detect Out
GND
+
ON
OFF
+
Low-Battery
Detect In
0.1
μ
F
V
IN
22
μ
H
100
μ
F
AIC1620
AIC1621
AIC1622
OUT
REF
LBO
SHDN
LX
LBI
LFB
FB
相關(guān)PDF資料 |
PDF描述 |
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| AIC1622COTR | High Efficiency Synchronous Step-Up DC/DC Converter |
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| AIC1631-3CS | 2-Cell, 500mA, Step-Up DC/DC Converter |
| AIC1631 | 2-Cell, 500mA, Step-Up DC/DC Converter |
| AIC1631-5CN | 2-Cell, 500mA, Step-Up DC/DC Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AIC1622 | 制造商:AIC 制造商全稱:Analog Intergrations Corporation 功能描述:High Efficiency Synchronous Step-Up DC/DC Converter |
| AIC1622COTR | 制造商:AIC 制造商全稱:Analog Intergrations Corporation 功能描述:High Efficiency Synchronous Step-Up DC/DC Converter |
| AIC16-22SG | 制造商:Amphenol Corporation 功能描述:ER CON 16 (22-24) SKT CRIMP AU |
| AIC1628 | 制造商:AIC 制造商全稱:Analog Intergrations Corporation 功能描述:3-Cell, High-Efficiency, Step-Up DC/DC Converter |
| AIC1628CN | 制造商:AIC 制造商全稱:Analog Intergrations Corporation 功能描述:3-Cell, High-Efficiency, Step-Up DC/DC Converter |
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