AME, Inc.
Step-Up/Step-Down
AME7720 / 7721
nElectrical Specifications(AME7721)
60mA Regulated Charge Pump
TA=-40OC to +85OC, VIN = VOUT/2+0.75V, IOUT = 5mA C = 2.2mF , CPUMP = 0.22 mF
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
IOUT <= 60mA, 2.2V < VIN < 5.5V
4.75
5
5.25
Output Voltage
VOUT
V
3.14 3.3
60
3.46
100
1.8V < VIN < 5V,
TA=-40~+85oC
IOUT=0mA
Quiescent Current
IQ
mA
Output Current
IOUT
ISC
VOUT = 5V
60
mA
mA
Short Circuit Current Limit
VOUT = GND
VIN = 3V,
80
Ripple Voltage1
Efficiency
VRIPPLE
h
fOSC
tON
50
90
mVp-p
%
IOUT = 60mA
IOUT = 15mA,
TA=25oC
VIN = 2.7V
Oscillator Free
Running
Frequency
1.0
0.15
MHz
ms
VIN = 3V,
TA=25oC
VOUT Turn-on time
IOUT = 60mA
Over Temperature Shutdown
Over Temperature Hysterisis
OTS
OTH
160
20
oC
Note 1: Effective series resistance (ESR) of capacitors is < 0.1W.
7
AKM [ ASAHI KASEI MICROSYSTEMS ]
