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參數(shù)資料
| 型號(hào)： | AIC1633CS |
| 廠商： | Analog Integrations Corporation |
| 英文描述： | 2-Cell, 200mA, Step-Up DC/DC Converter |
| 中文描述： | 2節(jié)電池，200毫安，升壓型DC / DC轉(zhuǎn)換器 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大小： | 281K |
| 代理商： | AIC1633CS |
AIC1633
2-Cell, 200mA, Step-Up DC/DC Converter
Analog Integrations Corporation
4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
www.analog.com.tw
DS-1633-03 Mar 15, 00
TEL: 886-3-5772500
FAX: 886-3-5772510
1
FEATURES
High Efficiency Up To 87%.
Adjustable Output Voltage with Two Resistors
(AIC1633A)
Power-Saving Shutdown Mode (7
μ
A typical).
Internal 0.8A Switch.
120KHz Switching Rate.
Adjustable Switch Current Limit.
On-Chip Low Battery Detector.
APPLICATIONS
Pocket Organizers.
Electronic Dictionaries.
Cameras.
Pagers.
Bar-Code Scanners.
LCD Displays.
Battery Backup Supplies.
Portable Instruments.
DESCRIPTION
The AIC1633 is a high efficiency step up DC/DC
converter. Only four external components are
required to deliver a fixed voltage of 3V, 3.3V, or
5V. The output voltage can be externally set to
an arbitrary value below breakdown voltage of
the power switch for AIC1633A. Efficiency
beyond 83% can be easily achieved at 70mA
load with 2.2V to 3V input voltages.
Logic-controlled shutdown mode is provided for
power saving. Switch current limit can be
programmed with a resistor. The low battery
detector can be configured as a linear regulator
or a burst mode controller performing an
extremely low supply current operation.
120KHz switching rate reduces the inductor size.
Inductors of 47
μ
H to 150
μ
H inductance are
recommended for most applications.
TYPICAL APPLICATION CIRCUIT
AIC1633
100
μ
H
L
+V
OUT
(3.3V)
LOAD
22
μ
F
C1
22
μ
F
C2
TATAN
NORMAL
R
ILIM
SD
ILIM/SD
VOUT
VIN
LBI
SW
LBO
SGND
CGND
1N5819
D1
+
+
470
R1
10K
+V
IN
NOTE: V
IN
≥
1.8V, V
OUT
≤
7V
High-Efficiency Step-Up DC/DC Converter
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