Datasheet

Data Sheet ADP2164
Rev. A | Page 11 of 20
09944-028
CH2 500mV
CH4 500mV
M 2.00ms A CH2 820mV
4
T 40.40%
T
TRK
FB
B
W
B
W
Figure 28. Tracking Function
60
48
36
24
12
0
–12
–24
–36
–48
–60
200
160
120
80
40
0
–40
–80
–120
–160
–200
1k 10k
1 2
100k 1M
FREQUENCY (Hz)
MAGNITUDE (dB)
PHASE (Degrees)
09944-029
CROSS FREQUENCY: 57kHz
PHASE MARGIN: 67°
PHASE
MAGNITUDE
Figure 29. Bode Plot at V
IN
= 5 V, V
OUT
= 1.0 V, I
O
= 4 A, f
S
= 1.2 MHz,
L = 0.68 μH, C
OUT
= 2 × 100 μF
60
48
36
24
12
0
–12
–24
–36
–48
–60
200
160
120
80
40
0
–40
–80
–120
–160
–200
1k 10k
1 2
100k 1M
FREQUENCY (Hz)
MAGNITUDE (dB)
PHASE (Degrees)
09944-030
CROSS FREQUENCY: 52kHz
PHASE MARGIN: 69°
PHASE
MAGNITUDE
Figure 30. Bode Plot at V
IN
= 5 V, V
OUT
= 1.5 V, I
O
= 4 A, f
S
= 1.2 MHz,
L = 1 μH, C
OUT
= 47 μF + 100 μF
09944-031
CH1 5.00mV CH2 5.00V
CH4 2.00A Ω
M 400ns A CH2 3.30V
2
1
4
T 30.60%
T
SW
V
OUT
I
L
Figure 31. Steady Waveform, V
IN
= 5 V, V
OUT
= 1.2 V, f
S
= 1.2 MHz
60
48
36
24
12
0
–12
–24
–36
–48
–60
200
160
120
80
40
0
–40
–80
–120
–160
–200
1k 10k
1 2
100k 1M
FREQUENCY (Hz)
MAGNITUDE (dB)
PHASE (Degrees)
09944-032
CROSS FREQUENCY: 61kHz
PHASE MARGIN: 69°
PHASE
MAGNITUDE
Figure 32. Bode Plot at V
IN
= 5 V, V
OUT
= 1.2 V, I
O
= 4 A, f
S
= 1.2 MHz,
L = 0.68 μH, C
OUT
= 47 μF + 100 μF
60
48
36
24
12
0
–12
–24
–36
–48
–60
200
160
120
80
40
0
–40
–80
–120
–160
–200
1k 10k
1 2
100k 1M
FREQUENCY (Hz)
MAGNITUDE (dB)
PHASE (Degrees)
09944-033
CROSS FREQUENCY: 61kHz
PHASE MARGIN: 66°
PHASE
MAGNITUDE
Figure 33. Bode Plot at V
IN
= 5 V, V
OUT
= 1.8 V, I
O
= 4 A, f
S
= 1.2 MHz,
L = 1 μH, C
OUT
= 100 μF