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Part: AME7701AEEV
Category:
Description: Switched Capacitor Voltage Doubler
Company: Analog Micro
Datasheet: Download AME7701AEEV datasheet File size : 543 kB
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AME, Inc.
AME7700 / 7701 / 7702
Switch Capacitor Voltage Doublers
! 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 required, however, in some cases, a single capacitor is acceptable. Minimum capacitance is obtained with the AME7701, while the AME7700 offers the lowest standby 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 its low start-up voltage, a single alkaline battery can be configured with (2) AME7700s to quadruple the voltage and produce 5V out. Alternately, with a 5V source, (2) AME7700s can be configured to triple the voltage and produce 15V out.
! Typical Connetcion
VIN DC
IN
CN
C1
CP
AME 7700 7701
OUT
VO UT
GND
C2
! Pin Configuration
SOT-25 TopView
5 4
! Features
" Small packages: SOT-25, SOT-26 " +1.5V to +5.5V Input Range " 60uA Quiescent Current ( AME7700) " 99% Conversion Efficiency " Output Current Exceeding 100mA " User Selectable Frequency ( AME7702)
AME7700 AME7701
1 2 3
AME7700 AME7701 1. GND 2. OUT 3. CN 4. IN 5. CP
! Applications
" " " " " " " " Cellular Phones Digital Cameras Battery Chargers High Tech Flashlights PDA s - LCD displays Consumer Electronics Pagers Portable Electronics
SOT-26 TopView
6 5 4
AME7702
AME7702 1. GND 2. CN 3. OUT 4. IN 5. FC 6. CP
1
2
3
1
AME, Inc.
AME7700 / 7701 / 7702
Switch Capacitor Voltage Doublers
! Pin Description
AME7700AEEV / AME7701AEEV
Pin #
1 2 3 4 5
Pin Name
GND OUT CN IN CP
Function
Ground (-Supply) Power Output Capac itor (-) Power Input Capac itor (+)
AME7702AEEY
Pin #
1 2 3 4 5 6
Pin Name
GND CN OUT IN FC CP
Function
Ground (-Supply) Capac itor(-) Power Output Power Input Frequenc y Control Capac itor (+)
! Ordering Information
Part Number
AME7700AEEV AME7701AEEV AME7702AEEY
Marking
ARGww ARHww AROww
Output Voltage
N/A N/A N/A
P ackag e
SOT-25 SOT-25 SOT-26
Operating Temp. Range
- 40oC to + 85oC - 40oC to + 85oC - 40oC to + 85oC
Please consult AME sales office or authorized Rep./Distributor for other output voltage and package type availability.
2
AME, Inc.
AME7700 / 7701 / 7702
Switch Capacitor Voltage Doublers
! Absolute Maximum Ratings
P arameter
Supply Voltage ESD Classification
Maximum
6 B
U nit 8
Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device
! Recommended Operating Conditions
P arameter
Supply Voltage Ambient Temperature Range Junc tion Temperature
R atin g
1.5 - 5.5 - 40 to + 85 - 40 to + 125
U nit
V
o o
C C
! Thermal Information
P arameter
Thermal Resistance (SOT-25 / SOT-26) Max imum Junction Temperature Max imum Lead Temperature (10 Sec)
Maximum
250 150 300
U nit
o
C/W
o o
C C
3
AME, Inc.
AME7700 / 7701 / 7702
Switch Capacitor Voltage Doublers
! Electrical Specifications
TA= 25OC, VIN=5V unless otherwise noted, C1 = C2 =3.3µF
Pa ra me te r Symbol Te st Condition AME7700 AME7702 FC is LO AME7701 AME7702 FC is HI RL = 10 K AME7700 AME7702 FC is LO AME7701 AME7702 FC is HI AME7700 AME7702 FC is LO AME7701 AME7702 FC is HI No load RL = 10 K 97 88 1.5 8.5 24.5 12 35 40 20 99 92 Mi n Typ 60 215 Ma x 100 µA 300 5.5 15.5 KHz 45.5 50 ohms 35 % % V Units
No Load Current
II N
Supply Voltage Range
VI N
Oscillator Frequency
FOSC
Output Resistance
Ro
Voltage Conversion Efficiency Power Efficiency
VEF F PEF F
4
AME, Inc.
AME7700 / 7701 / 7702
Osc. Freq. @ 25C
35 12
Switch Capacitor Voltage Doublers
Load Regulation
Oscillator Frequency (KHZ)
30 25 20 15 10 5 0
10
AME7701
8
VOUT AME7700
1 2 3 4 5 6
6
4
2 0 0 50 100 150
Input Voltage (V)
I ( mA)
Load Reg
12 10 50
AME7700 Output Resistance @ 25C
Vin= 5
8
Output Resistance (Ohm)
45
40
2.2µF
VO UT
6
Vin=3.3 Vin= 2
35
4 2 0
3.3µF
30
25 0 50 100 150 2 3 4 5 6
I(mA)
Input Voltage (V)
Electrical Characteristics vs. Temp
160 140 120 100 300
Supply Current @ 25C
250
Supply Current(mA)
AM E7700
200
ROUT/IDD
80 60 40 20 0 25 50
IDD AM E7701
150 100
AME7701
RO U T
50
AME7700
75 100 125 150 0 1 2 3 4 5 6
Temperature (oC)
Input Voltage (V)
5
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