參數(shù)資料
型號： AIC1620
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
文件頁數(shù)： 7/12頁
文件大?。?/td> 456K
代理商： AIC1620
AIC1620/AIC1621/AIC1622
7
n
BLOCK DIAGRAM
+
+
+
+
+
OUT
VIN
CLSEL
SHDN
LBO
LBI
REF
FB
Mirror
Q
R
S
F/F
Minimum Off-Time
One Shot
Reference Voltage
GND
LX
BATT
L
1
R1
200
Q3
Q2
Q1
Damping
Switch
Maximum On-Time
OUT
One Shot
C3
220
μ
F
C1
100
μ
F
47
μ
F
0.1
μ
F
C4
0.1
μ
F
n
PIN DESCRIPTIONS
AIC1620/ AIC1621
PIN 1: FB-
Connect to OUT for +3.3V output.
Use a resistor network to set the
output voltage from +1.8V to +4.0V.
Low-battery comparator input. Inter-
nally set to trip at +1.23V.
Open-drain low battery comparator
output. Output is low when V
LBI
is
<1.23V. LBO is high impedance
during shutdown.
PIN 2: LBI-
PIN 3: LBO-
PIN 4: REF-
1.23V reference voltage. Bypass
with a 0.1
μ
F capacitor.
PIN 5: SHDN- Shutdown
low=shutdown.
PIN 6: GND-
Ground
PIN 7: LX-
N-channel and P-channel power
MOSFET drain.
PIN 8: OUT-
Power output. OUT provides boot-
strap power to the IC.
input.
High=operating,
相關PDF資料
PDF描述
AIC1620COTR High Efficiency Synchronous Step-Up DC/DC Converter
AIC1621 High Efficiency Synchronous Step-Up DC/DC Converter
AIC1621COTR High Efficiency Synchronous Step-Up DC/DC Converter
AIC1622COTR High Efficiency Synchronous Step-Up DC/DC Converter
AIC1631-3CN 2-Cell, 500mA, Step-Up DC/DC Converter
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