AME7701AEEV 반도체 회로 부품 판매점
Switched Capacitor Voltage Doublers
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 Analog Microelectronics |
Analog Microelectronics, Inc.
Preliminary
AME7700/AME7701/AME7702
Switched Capacitor Voltage Doublers
n General Description
The AME7700 series of economical, Charge-Pump
Converters efficiently double a +1.5V to +5.5V input to
+3.0V to +11V, with a working current exceeding 100mA.
Due to their simplicity, small size, and performance,
these CMOS converters have numerous applications.
For most cases, only (2) external capacitors are re-
quired, however, in some cases, a single capacitor is
acceptable. Minimum capacitance is obtained with the
AME7701, while the AME7700 offers the lowest stand-
by current. The AME7702 has a Frequency-Select pin
for added flexibility. The input voltage can be tripled or
quadrupled by cascading 2 Charge-Pumps. A single
alkaline battery
With it’s low start-up voltage, a single alkaline battery
can be configured with (2) AME7700’s to quadruple the
voltage and produce 5V out. Alternately, with a 5V
source, (2) AME7700’s can be configured to triple the
voltage and produce 15V out.
n Typical Connection
AME 7700/7701
VIN
DC
IN
C1
CP
CN
OUT
GND
VOUT
C2
n Features
l Small packages: SOT-25, SOT-26
l +1.5V to +5.5V Input Range
l 60uA Quiescent Current ( AME7700)
l 99% Conversion Efficiency
l Output Current Exceeding 100mA
l User Selectable Frequency ( AME7702)
n Applications
l Cellular Phones
l Digital Cameras
l Battery Chargers
l High Tech Flashlights
l PDA’s - LCD displays
l Consumer Electronics
l Pagers
l Portable Electronics
n Pin Configuration
SOT-25 Top View
54
SOT-26 Top View
6 54
AME7700
AME7701
12 3
1: GND
2: OUT
3: CN
4: IN
5: CP
AME7702
123
1: GND
2: CN
3: OUT
4: IN
5: FC
6: CP
1
Analog Microelectronics, Inc.
Preliminary
AME7700/AME7701/AME7702
Switch Capacitor Voltage Doublers
n Pin Description
AME7700AEEV/ AME7701AEEV
Pin Designation
1 GND
2 OUT
3 CN
4 IN
5 CP
Function
Ground (-Supply)
Power Output
Capacitor (-)
Power Input
Capacitor (+)
AME7702AEEY
Pin Designation
1 GND
2 CN
3 OUT
4 IN
5 FC
6 CP
Function
Ground (-Supply)
Capacitor(-)
Power Output
Power Input
Frequency Control
Capacitor (+)
n Order Information
Part Number
AME7700AEEV
AME7701AEEV
AME7702AEEY
Package
SOT-25
SOT-25
SOT-26
Operating Temp.
-40OC to +85OC
-40OC to +85OC
-40OC to +85OC
2
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( am )
AME7701AEEV capacitor
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