AIC1640 AIC [Analog Intergrations Corporation], AIC1640 Datasheet
AIC1640
Manufacturer Part Number
AIC1640
Description
LOW VOLTAGE STEP-UP DC/DC CONVERTER
Manufacturer
AIC [Analog Intergrations Corporation]
Datasheet
1.AIC1640.pdf
(2 pages)
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■ ■ ■ ■ FEATURES
■ ■ ■ ■ APPLICATIONS
■ ■ ■ ■ TYPICAL APPLICATION CIRCUIT
ANALOG INTEGRATIONS CORPORATION
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C.
V
≧0.9V
Guaranteed Start-Up from Below 0.9 V.
High Efficiency.
Low Quiescent Current.
Fixed or adjustable Output Voltage.
Logic Controlled Shutdown.
External Switch Driver available.
Pagers.
Cameras.
Wireless Microphones.
Pocket Organizers.
Battery Backup Suppliers.
Portable Instruments.
IN
3.3V Output Step-Up DC/DC Converter
22 F
C1
SB02-03C
88 H
L1
+
D1
ADVANCE INFORMATION
V OUT
3.3V
VDD
EXT
SW
NC
AIC1640
GND
CE
NC
NC
■ ■ ■ ■ DESCRIPTION
LOW VOLTAGE STEP-UP DC/DC CONVERTER
≧ 0.9V
V
TEL: (8863)577-2500 FAX:(8863)577-2510
www.analog.com.tw
IN
The AIC1640 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 3V, 3.3V, or 5V.
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 AIC1640 starts up from
below 0.9V input to boost either 3V, 3.3V, or 5V
output with 1mA load.
Some useful features include external driver for
higher power level applications, shutdown mode for
saving the life of battery, and adjustable output ver-
sion. The PFM control circuit operates in 100KHz
(max.) switching rate, resulting in smaller passive
component size, which makes the AIC1640 an ide-
al choice of DC/DC converter for space conscious
applications.
+
33 H
2SD2150
100 F
C2
L1
3.3V/100mA Step-Up DC/DC Converter
Q1
1N5819
D1
10nF
300
R1
C1
V
3.3V/100mA
OUT
VDD
EXT
SW
NC
SPEC NO: DS-1640-P1
AIC1640
AIC1640
GND
CE
NC
NC
1
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AIC1640 Summary of contents
Page 1
... The output ripple and noise are lower compared with the circuit op- erating in PSM mode. The AIC1640 starts up from below 0.9V input to boost either 3V, 3.3V output with 1mA load. Some useful features include external driver for ...
Page 2
... ANALOG INTEGRATIONS CORPORATION 4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. LOW VOLTAGE STEP-UP DC/DC CONVERTER ORDER NUMBER AIC1640-XXCN (PLASTIC DIP) AIC1640-XXCS (PLASTIC SO) 30: 3.0V 33: 3.3V 50: 5.0V www.analog.com.tw TEL: (8863)577-2500 FAX:(8863)577-2510 AIC1640 SPEC NO: DS-1640-P1 PIN CONFIGURATION TOP VIEW VDD EXT 2 SW ...