Datasheet

EVAL-ADP2118
Rev. 0 | Page 6 of 16
Cross Frequency and Phase Margin with Different Output Filter and f
S
= 1.2 MHz
Table 2. Cross Frequency and Phase Margin—V
OUT
= 1.0 V
C
OUT
(µF) L (µH) V
IN
3.3 V 5 V
47 1 f
C
(kHz) 150 150
PM (Degrees) 42 39
1.5 f
C
(kHz) 126 133
PM (Degrees) 33 31
2.2 f
C
(kHz) 118 124
PM (Degrees) 28 27
3.3 f
C
(kHz) 103 112
PM (Degrees) 30 25
100 1 f
C
(kHz) 104 105
PM (Degrees) 59 55
1.5 f
C
(kHz) 92 91
PM (Degrees) 47 50
2.2 f
C
(kHz) 78 63
PM (Degrees) 41 42
3.3 f
C
(kHz) 72 77
PM (Degrees) 34 35
Table 3. Cross Frequency and Phase Margin—V
OUT
= 1.5 V
C
OUT
(µF) L (µH) V
IN
3.3 V 5 V
47 1 f
C
(kHz) 121 124
PM (Degrees) 57 57
1.5 f
C
(kHz) 93 114
PM (Degrees) 53 49
2.2 f
C
(kHz) 84 98
PM (Degrees) 42 51
3.3 f
C
(kHz) 74 83
PM (Degrees) 34 40
100 1 f
C
(kHz) 72 75
PM (Degrees) 65 66
1.5 f
C
(kHz) 67 71
PM (Degrees) 54 57
2.2 f
C
(kHz) 61 67
PM (Degrees) 46 50
3.3 f
C
(kHz) 57 63
PM (Degrees) 40 44
Table 4. Cross Frequency and Phase Margin—V
OUT
= 2.5 V
C
OUT
(µF) L (µH) V
IN
3.3 V 5 V
47 1 f
C
(kHz) 67 73
PM (Degrees) 70 71
1.5 f
C
(kHz) 59 68
PM (Degrees) 55 59
2.2 f
C
(kHz) 53 64
PM (Degrees) 46 51
3.3 f
C
(kHz) 48 59
PM (Degrees) 39 44
100 1 f
C
(kHz) 50 53
PM (Degrees) 73 72
1.5 f
C
(kHz) 45 51
PM (Degrees) 61 64
2.2 f
C
(kHz) 42 48
PM (Degrees) 53 56
3.3 f
C
(kHz) 38 44
PM (Degrees) 48 50
Table 5. Cross Frequency and Phase Margin—V
OUT
= 1.2 V
C
OUT
(µF) L (µH) V
IN
3.3 V 5 V
47 1 f
C
(kHz 130 135
PM (Degrees) 40 41
1.5 f
C
(kHz) 121 131
PM (Degrees) 42 44
2.2 f
C
(kHz) 105 119
PM (Degrees) 35 38
3.3 f
C
(kHz) 96 109
PM (Degrees) 30 33
100 1 f
C
(kHz) 83 81
PM (Degrees) 67 61
1.5 f
C
(kHz) 76 83
PM (Degrees) 51 53
2.2 f
C
(kHz) 73 78
PM (Degrees) 45 46
3.3 f
C
(kHz) 66 75
PM (Degrees) 39 41