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參數(shù)資料
| 型號： | AIC1611POTR |
| 廠商： | Analog Integrations Corporation |
| 英文描述： | HIGH EFFICIENCY SYNCHRONOUS STEP-UP DC/DC CONVERTER |
| 中文描述： | 高效率同步升壓型DC / DC變換器 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大小： | 651K |
| 代理商： | AIC1611POTR |
AIC1610/AIC1611
High Efficiency Synchronous Step-Up DC/DC
Converter
FEATURES
z
High
Efficiency
V
OUT
=3.3V, I
OUT
=200mA)
z
Output Current up to 500mA. (AIC1610 at
V
IN
=2.4V and V
OUT
=3.3V)
z
20
μ
A Quiescent Supply Current.
(93%
when
V
IN
=2.4V,
z
Power-Saving Shutdown Mode (0.1
μ
A typical).
z
Internal Synchronous Rectifier (No External Di-
ode Required).
z
On-Chip Low Battery Detector.
z
Low Battery Hysteresis
z
Space-Saving Package: MSOP-8
APPLICATIONS
z
Palmtop & Notebook Computers.
z
PDAs
z
Wireless Phones
z
Pocket Organizers.
z
Digital Cameras.
z
Hand-Held Devices with 1 to 3-Cell of
NiMH/NiCd Batteries.
DESCRIPTION
The AIC1610/AIC1611 are high efficiency
step up DC-DC converters. The start-up volt-
age is as low as 0.8V with operating voltage
down to 0.7V. Simply consuming 20
μ
A of qui-
escent current. These devices offer a built-in
synchronous rectifier that reduces size and
cost by eliminating the need for an external
Schottky diode and improves overall effi-
ciency by minimizing losses.
The switching frequency can range up to
500KHz depending on the load and input volt-
age. The output voltage can be easily set by
two external resistors from 1.8V to 5.5V,
connecting FB to OUT to get 3.3V, or con-
necting to GND to get 5.0V. The peak current
of the internal switch is fixed at 1.0A (AIC1610)
or 0.65A (AIC1611) for design flexibility.
TYPICAL APPLICATION CIRCUIT
V
IN
Output 3.3V, 5.0V
or Adj. (1.8V to 5.5V)
up to 300mA
Low-battery
Detect Out
AIC1610
AIC1611
OUT
FB
GND
REF
LBO
SHDN
LX
LBI
+
ON
OFF
+
Low Battery
Detection
0.1
μ
F
22
μ
H
47
μ
F
47
μ
F
Analog Integrations Corporation
Si-Soft Research Center
3A1, No.1, Li-Hsin Rd. I , Science Park , Hsinchu 300, Taiwan , R.O.C.
DS-1610P-03 010405
TEL: 886-3-5772500
FAX: 886-3-5772510
www.analog.com.tw
1
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