AME5252 Datasheet, PDF (13/18 Pages) Analog Microelectronics – Dual Synchronous, 600mA, 1.5MHz Step-Down DC/DC Converter

AME
AME5252
Dual Synchronous, 600mA, 1.5MHz
Step-Down DC/DC Converter
Start-UP form Shutdown
EN
5V /Div
V_OUT
1V/Div
Pluse Skipping Mode
VSW
5V /Div
VOUT
10mV/Div
VIN=3.6V
VOUT =1.8V
IOUT= 800mA
50µS/Div
Load Step
V_IN=3.6V
20µS/Div
VOUT =1.8V
ILOAD=50mA to 600mA
I_L
500mA/Div
VIN= 3.6V
VOUT=1.8V
ILOAD=50mA
1µS/Div
V_OUT
200mV /Div
ISW
500mV/Div
I_OUT
500mA/Div _C
100
95
90
85
80
75
70
65
60
55
50
2
Efficiency vs Input voltage
IOUT =100mA
I_OUT=600mA
IOUT=10mA
3
4
5
Input Voltage(V)
I_SW
200mA/Div
6
Oscillator Frequency vs Temperature
1. 8
1. 7
1. 6
1. 5
1. 4
1. 3
1. 2
1. 1
1.0
-40
-15
+10
+35
+60
+85
+110
Temperature(^o C)
Oscillator Frequency vs Supply Voltage
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
2
3
4
5
6
Supply Voltage(V)
Rev.C.01
13