EA4524YH Datasheet, PDF (13/16 Pages) Active-Semi, Inc – 40V/3.5A Buck Converter with Dual Output and Separated Over Current Protection

ACT4524
Rev 1.1, 22-Feb-16
TYPICAL PERFORMANCE CHARACTERISTICS
(Schematic as show in Figure 1, Ta = 25°C, unless otherwise specified)
2730
2700
Output1 Current vs. Temperature
VOUT = 5.1V
VIN = 12V
IOUT= 2.65A
2670
2640
2610
2580
2550
-20
10
40
70
100
130
160
Temperature (°C)
1320
1290
Output2 Current vs. Temperature
VOUT = 5.1V
VIN = 12V
IOUT = 1.2A
1260
1230
1200
1170
1140
-20
10
40
70
100
130
160
Temperature (°C)
Input Surge Test
CH1
CH2
CH3
CH1: VIN, 20V/div
CH2: VOUT, 2V/div
CH3: IOUT, 2A/div
TIME: 100ms/div
Start up into CC Mode
VOUT = 5.1V
RLORD = 2.5Ω
IOUT2 = 1.2A
VIN = 12V
CH1
CH2
CH1: VOUT, 2V/div
CH2: IOUT, 1A/div
TIME: 400µs/div
Start up into CC Mode
VOUT = 5.1V
RLORD = 1.5Ω
IOUT1 = 2.65A
VIN = 12V
CH1
CH2
CH1: VOUT, 2V/div
CH2: IOUT, 1A/div
TIME: 400µs/div
Start up with CC load
VIVVI_OOIIoUNUNTuT==t===1153322...VV164VAA
CH1
CH2
CH3
CH4
CH1: VIN, 5V/div
CH2: VOUT, 2V/div
CH3: IL, 5A/div
CH4: SW, 10V/div
TIME: 1ms//div
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