AME, Inc.
Step-Up/Step-Down
60mA Regulated Charge Pump
AME7720 / 7721
nElectrical Specifications(AME7720)
TA=-40OC to +85OC, VIN = VOUT/2+0.75V, IOUT = 5mA , C = COUT=2.2mF , CPUMP = 0.22 mF, VEN=1.3V
IN
Typical Values are at TA=25OC.
Test Conditions
Parameter
Input Voltage
Symbol
Min Typ Max
Units
VOUT = 5V
2.7
1.8
5.5
5.5
VIN
V
VOUT = 3.3V
IOUT <= 15mA, 2.7V < VIN < 5.5V
IOUT <= 60mA, 3.0V < VIN < 5.5V
IOUT <= 15mA, 1.8V < VIN < 5.5V
4.75
5
5.25
3.46
Output Voltage
VOUT
V
3.14 3.3
IOUT <= 60mA, 2.2V < VIN < 5.5V
1.8V < VIN < 5.5V,
60
100
0.1
IOUT = 0mA
Quiescent Current
IQ
TA=-40~+85oC
mA
1.8V < VIN < 5.5V,
EN = GND
0.01
Output Current
IOUT
ISC
VOUT = 5V
60
mA
mA
Short Circuit Current Limit
VOUT = GND
VIN = 3V,
80
Ripple Voltage1
Efficiency
VRIPPLE
h
50
90
mVp-p
%
IOUT = 60mA
IOUT = 15mA,
TA=25oC
VIN = 2.7V
Oscillator Free
Running
Frequency
fOSC
1.0
MHz
EN Input Threshold High
EN Input Threshold Low
EN Input Current High
EN Input Current Low
VIH
VIL
IIH
1.3
V
0.6
0.1
0.1
V
EN = VIN
mA
mA
IIL
EN = GND
VIN = 3V,
TA=25oC
VOUT Turn-on time
tON
0.15
ms
oC
IOUT = 60mA
Over Temperature Shutdown
Over Temperature Hysterisis
OTS
OTH
160
20
Note 1: Effective series resistance (ESR) of capacitors is < 0.1W.
6
AKM [ ASAHI KASEI MICROSYSTEMS ]
