ADP1853 Datasheet, PDF (10/28 Pages) Analog Devices – Synchronous, Step-Down DC-to-DC Controller

ADP1853
TYPICAL PERFORMANCE CHARACTERISTICS
100
90
80
70
60
50
40
30
20
10
PULSE SKIP
FORCED PWM
0
0.1
1
10
100
LOAD (A)
Figure 4. Efficiency Plot
12 V_IN to 3.3 V_OUT, 300 kHz, see Figure 36 for Circuit
Data Sheet
100
90
80
70
60
50
40
30
20
10
PULSE SKIP
FORCED PWM
0
0.1
1
10
100
LOAD (A)
Figure 7. Efficiency Plot
15 V_IN to 5 V_OUT, 600 kHz, see Figure 35 for Circuit
LOAD
CURRENT
4
2
VOUT_AC
LOAD
CURRENT
4
VOUT_AC
2
CH2 200mV ^BW M 100µs 5.0MS/s A CH4
CH4 10A Ω ^BW 200ns/pt
Figure 5. 10 A to 20 A Load Step,
12 V_IN to 3.3 V_OUT, 300 kHz, Current Mode
14.2A
CH2 200mV ^BW M 100µs 5.0MS/s A CH4
CH4 10A Ω ^BW 200ns/pt
Figure 8. 10 A to 20 A Load Step,
12 V_IN to 3.3 V_OUT, 300 kHz, Voltage Mode
14.2A
VIN
1
VOUT_AC
2
CH1 5V
BW
CH2 100mV ^BW
M 100µs 250MS/s A CH1
4ns/pt
Figure 6. 9 V to 15 V Line Step,
3.3 V_OUT, 15 A Load, Current Mode
12.6V
VIN
1
VOUT_AC
2
CH1 5V
BW
CH2 100mV ^BW
M 100µs 250MS/s A CH1
4ns/pt
Figure 9. 9 V to 15 V Line Step,
3.3 V_OUT, 15 A Load, Voltage Mode
12.6V
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