ame5258a AME, Inc., ame5258a Datasheet - Page 12

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

12
AME5258A
V
V
I
V
V
I
V
V
I
OUT
LOAD
LOAD
IN
OUT
IN
OUT
IN
OUT
=3.6V
=3.6V
=3.6V
=10mA
=1.8V
=1.8V
=1.8V
=600mA
=0mA to 600mA
AME
Start-UP form Shutdown
Pluse Skipping Mode
Load Step
200 S/Div
20 S/Div
1 S/Div
500mA/Div
I
500mA/Div
I
V
100mV/Div
10mV/Div
SW
V
20mA/Div
AC COUPLED
L
OUT
5V/Div
I
L
OUT
RUN
2V /Div
V
1V/Div
500mA/Div
OUT
I
OUT
L
100
95
90
85
80
75
70
65
60
55
50
2.5
Synchronous Buck Converter
V
V
I
OUT
V
V
I
IN
OUT
OUT
IN
OUT
=3.6V
=50mA
=3.6V
=1.8V
I
=20mA
OUT
=1.8V
Efficiency vs Input voltage
=100mA
3
Pluse Skipping Mode
Pluse Skipping Mode
I
OUT
=600mA
3.5
Input Voltage(V)
1 S/Div
1 S/Div
4
I
OUT
I
OUT
1.5MHz, 800mA
=200mA
4.5
=10mA
5
5.5
SW
5V /Div
V
10mV/Div
SW
5V/Div
I
20mA/Div
20mA/Div
V
10mV/Div
L
I
Rev.A.01
OUT
L
OUT