ame5258 AME, Inc., ame5258 Datasheet - Page 7

• Manufacturer Part Number: ame5258
• Description: Synchronous Buck Converter
• Manufacturer: AME, Inc.

n Electrical Specifications
AME5258
Rev.A.05
T
Input Volatge
Feedback Current
Regulated Feedback
Voltage
Reference Voltage
Line Regulation
Regulated Output Voltage
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
A
=25
DSON
DSON
o
C. V
Parameter
of P-Channel FET
of N-Channel FET
IN
=3.6V unless otherwise specified.
AME
V
REG
Symbol
R
R
LOADREG
DSON(P)
DSON(N)
V
f
V
V
V
V
I
I
I
I
OSC
I
V
SW
FB
CL
SD
I
EN
I N
FB
OUT
Q
EH
EL
FB
LINE
V
V
Duty Cycle < 35%
Duty Cycle < 35%
V
V
I N
I N
IN
IN
=3V, V
I
I
I
I
=3V, V
V
V
V
V
OUT
OUT
OUT
OUT
=2.5V to 5.5V
=2.5V to 5.5V
OUT
OUT
OUT
OUT
=100mA
=100mA
=100mA
=100mA
=1.2V,
=1.8V,
=2.5V,
=3.3V,
OUT
FB
V
=0.5V
V
V
=90%
I N
FB
V
AME5258-BEVADJ
SW
V
=2.5V & I
F B
=0.5V or V
Test Condition
EN
V
=0V or 5V,V
I
=0V or V
SW
I
=0V, V
EN
SW
V
=V
= -100mA
EN
=100mA
I N
=0V,
OUT
=4.2V
I N
AME5258-BEVADJ
AME5258-BEVADJ
OUT
OUT
AME5258-AEVxxx
AME5258-AEVxxx
=4.2V
=100mA
Synchronous Buck Converter
I N
=90%
=0V
=5V
0.5880
1.164
1.746
2.425
3.201
0.75
Min
2.5
1.5
1.2
1.5MHz, 600mA
0.04
0.04
Typ
0.35
300
210
0.6
1.2
1.8
2.5
3.3
0.5
0.1
1.5
0.4
1
0.6120
1.236
1.854
2.575
3.399
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
V
A
V
A
A
A
7