ame5258a AME, Inc., ame5258a Datasheet - Page 7

• Manufacturer Part Number: ame5258a
• Description: Synchronous Buck Converter
• Manufacturer: AME, Inc.

n Electrical Specifications
AME5258A
Rev.A.01
T
A
=25
Input Volatge
Feedback Current
Regulated Feedback
Voltage
Reference Voltage
Line Regulation
Output Voltage
Line Regulation
Switch Current Limit
Output Voltage
Load Regulation
Shutdown Current
Quiescent Current
Oscillator Frequency
R
R
Switch Leakage Current
EN Input Threshold (High)
EN Input Threshold (Low)
EN Input Current
DSON
DSON
o
C. V
Parameter
of P-Channel FET
of N-Channel FET
IN
=3.6V unless otherwise specified.
AME
V
Symbol
REG
R
R
LOADREG
DSON(N)
DSON(P)
f
V
V
V
V
I
OSC
I
I
I
I
V
SD
I
SW
FB
CL
EN
Q
FB
EH
IN
EL
FB
LINE
V
V
V
IN
FB
V
SW
V
V
Duty Cycle < 35%
=2.5V & I
V
V
FB
=0.5V or V
Test Condition
EN
IN
IN
IN
V
=0V or 5V,V
I
=0V or V
=3V, V
SW
I
=0V, V
EN
=2.5V to 5.5V
=2.5V to 5.5V
SW
V
=V
= -100mA
EN
=100mA
=0V,
IN
OUT
FB
=4.2V
IN
OUT
OUT
=0.5V
=4.2V
=100mA
Synchronous Buck Converter
IN
=90%
=0V
=5V
0.5880
Min
1.5
2.5
1.2
1
1.5MHz, 800mA
0.04
0.04
Typ
0.35
300
210
0.6
0.5
0.1
1.5
0.4
0.6120
Max
±30
450
1.8
0.6
0.5
5.5
0.4
0.4
0.3
±1
±1
1
Units
%/V
%/V
MHz
kHz
nA
%
V
V
A
V
A
A
A
7