AME
1.5MHz, 600mA
Synchronous Buck Converter
AME5248A
nElectrical Specifications (Contd.)
VIN=3.6V, EN=VIN, TA = 25OC, unless otherwise noted
Test Condition
Parameter
Symbol
Min Typ Max Units
High-side Switch On-Resistance
Low-side Switch On-Resistance
RDS,ON,HI
RDS,ON,LO
ISW=100mA
ISW=-100mA
0.4
0.6
0.5
W
0.35
VIN=3V, VOUT=1.2V
Switch Current Limit
ISW,CL
ISW,LK
fOSC
1
1.25
0.01
1.5
A
VEN=0V, VSW=0V or 3.6V,
VIN=3.6V
Switch Leakage Current
Switch Frequency
1
mA
VFB=0.5V or VOUT=100%
VFB=0V or VOUT=0V
1.2
1.8
MHz
%
Short Circuit Oscillator Frequency
fOSC,SCR
0.21
Maximum Duty Cycle
DMAX
100
2
Input Undervoltage Lockout
VUVLO
VIN Rising
2.15
0.1
2.3
Input Undervoltage Lockout
Hysteresis
VUVLO,HYST
V
Enable High (Enabled the Device)
Enable Low (Shutdown the Device)
EN Input Current (Enable the Device)
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
VEN,HI
VEN,LO
IEN
1.4
0.4
1
0.01
160
30
mA
OTP
OTH
Shutdown, temperature increasing
Restore, temperature increasing
oC
Note 1: DV=IOUT x RDS.ON.HI
8
Rev.A.01
AME [ ANALOG MICROELECTRONICS ]
