ame5248a AME, Inc., ame5248a Datasheet - Page 8

• Manufacturer Part Number: ame5248a
• Description: Synchronous Buck Converter
• Manufacturer: AME, Inc.

n Electrical Specifications (Contd.)
8
AME5248A
V
Note 1: V=I
IN
High-side Switch On-Resistance
Low-side Switch On-Resistance
Switch Current Limit
Switch Leakage Current
Switch Frequency
Short Circuit Oscillator Frequency
Maximum Duty Cycle
Input Undervoltage Lockout
Input Undervoltage Lockout
Hysteresis
Enable High (Enabled the Device)
Enable Low (Shutdown the Device)
EN Input Current (Enable the Device)
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
=3.6V, EN=V
OUT
Parameter
AME
IN
x R
, T
DS.ON.HI
A
= 25
O
C, unless otherwise noted
V
R
R
Symbol
f
UVLO,HYST
OSC,SCR
V
DS,ON,LO
V
DS,ON,HI
I
V
I
SW,CL
D
OTP
OTH
SW,LK
f
EN,LO
OSC
EN,HI
UVLO
I
MAX
EN
Shutdown, temperature increasing
Restore, temperature increasing
V
V
EN
FB
V
V
=0V, V
=0.5V or V
FB
IN
Test Condition
=3V, V
=0V or V
I
I
SW
SW
V
Synchronous Buck Converter
V
IN
=-100mA
IN
=100mA
SW
=3.6V
Rising
=0V or 3.6V,
OUT
OUT
OUT
=1.2V
=100%
=0V
Min
100
1.2
1.4
1.5MHz, 600mA
1
2
Typ
0.35
1.25
0.01
0.21
2.15
0.01
160
0.4
1.5
0.1
30
Max
0.6
0.5
1.8
2.3
0.4
1
1
Rev.A.01
Units
MHz
o
%
A
V
C
A
A