Data Sheet
ADP5042
 
Rev. A | Page 9 of 32
TYPICAL PERFORMANCE CHARACTERISTICS
VIN1 = VIN2 = VIN3 = AVIN = 5.0 V, T
A
 = 25癈, unless otherwise noted.
CH1  2.0V/DIV   1M&
B
W
20.0M
CH2  2.0V/DIV   1M&
B
W
500M
CH3  2.0V/DIV   1M&
B
W
20.0M
A CH1 1.76V
200祍/DIV
50.0MS/s
20.0ns/pt
VOUT1
VOUT2
VOUT3
Figure 3. 3-Channel Start-Up Waveforms
0
0.1
0.2
0.3
0.4
0.5
0.6
1.0
0.9
0.8
0.7
2.3
2.8
3.3
3.8
4.3
4.8
5.3
INPUT VOLTAGE V
VOUT1 = 1.8V,
VOUT2 = VOUT = 3.3V
Figure 4. System Quiescent Current (Sum of All the Input Currents) vs. Input Voltage,
VOUT1 = 1.8 V, VOUT2 = VOUT3 = 3.3 V
CH1  2.0V/DIV       1M&
B
W
20.0M
CH2  2.0V/DIV       1M&
B
W
500M
CH3  100mA/DIV  1M&
B
W
20.0M
CH4  5.0V/DIV       1M&
B
W
500M
A CH1 2.92V
50祍/DIV
50.0MS/s
20.0ns/pt
SW
VOUT1
EN
IIN
Figure 5. Buck Startup, VOUT1 = 1.8 V, IOUT1 = 20 mA
CH1  4.0V/DIV       1M&
B
W
20.0M
CH2  3.0V/DIV       1M&
B
W
500M
CH3  200mA/DIV  1M&
B
W
20.0M
CH4  5.0V/DIV       1M&
B
W
500M
A CH1 2.24V
50祍/DIV
20.0MS/s
50.0ns/pt
SW
VOUT1
LOAD
EN
Figure 6. Buck Startup, VOUT1 = 1.8 V, IOUT2 = 20 mA
3.22
3.24
3.26
3.28
3.30
3.32
3.34
TP  T
RRENT  A
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
+25癈
40癈
+85癈
Figure 7. Buck Load Regulation Across Temperature, VOUT1 = 3.3 V, Auto Mode
1.775
1.780
1.785
1.790
1.795
1.800
1.805
1.810
1.815
1.820
1.825
1.830
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
OUTPUT CURRENT A
+25癈
40癈
+85癈
Figure 8. Buck Load Regulation Across Temperature, VOUT1 = 1.8 V, Auto Mode
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