Datasheet

LTM4613
13
4613f
APPLICATIONS INFORMATION
Table 2. Output Voltage Response Versus Component Matrix (Refer to Figure 19)
TYPICAL MEASURED VALUES
VENDORS PART NUMBER VENDORS PART NUMBER
Murata GRM32ER61C476KEI5L (47µF, 16V) Murata GRM32ER71H106K (10µF, 50V)
Murata GRM32ER61C226KE20L (22µF, 16V) TDK C3225X5RIC226M (22µF, 16V)
Figure 4. Normalized Output Ripple Current vs Duty Cycle, ∆I
L
= V
O
T/L
I
DUTY CYCLE (V
O
/V
IN
)
0.1 0.15 0.2 0.25 0.350.3 0.4 0.45 0.5 0.55 0.6 0.65 0.7 0.75 0.8 0.85
0.9
1.00
0.95
0.90
0.85
0.80
0.75
0.70
0.65
0.60
0.55
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
4612 F04
6-PHASE
4-PHASE
3-PHASE
2-PHASE
1-PHASE
PEAK-TO-PEAK OUTPUT RIPPLE CURRENT
∆I
L
RATIO =
V
OUT
(V)
C
IN
(CERAMIC)
C
IN
(BULK)
C
OUT1
(CERAMIC) C
OUT2
(BULK)
V
IN
(V)
DROOP
(mV)
PK-TO-PK
(mV)
RECOVERY
TIME (µs)
LOAD
STEP (A)
LOAD STEP
SLEW RATE
(A/µS)
R
FB
(kΩ)
3.3
2 × 10µF 50V
100µF 50V
2 × 22uF 16V
150µF 16V 5 84 175 50 4 10 22.1
3.3
2 × 10µF 50V
100µF 50V
4 × 47uF 16V
None 5 91 181 40 4 10 22.1
3.3
2 × 10µF 50V
100µF 50V
2 × 22uF 16V
150µF 16V 12 100 188 50 4 10 22.1
3.3
2 × 10µF 50V
100µF 50V
4 × 47uF 16V
None 12 100 191 40 4 10 22.1
3.3
2 × 10µF 50V
100µF 50V
2 × 22uF 16V
150µF 16V 24 113 200 50 4 10 22.1
3.3
2 × 10µF 50V
100µF 50V
4 × 47uF 16V
None 24 103 197 40 4
10 22.1
5
2 × 10µF 50V
100µF 50V
2 × 22uF 16V
150µF 16V 12 109 222 60 4 10 13.7
5
2 × 10µF 50V
100µF 50V
4 × 47uF 16V
None 12 122 238 50 4 10 13.7
5
2 × 10µF 50V
100µF 50V
2 × 22uF 16V
150µF 16V 24 119 228 60 4 10 13.7
5
2 × 10µF 50V
100µF 50V
4 × 47uF 16V
None 24 122 238 50 4 10 13.7
5
2 × 10µF 50V
100µF 50V
2 × 22uF 16V
150µF 16V 36 125 231 60 4 10 13.7
5
2 × 10µF 50V
100µF 50V
4 × 47uF 16V
None 36 128 247 50 4 10 13.7
12
2 × 10µF 50V
100µF 50V
2 × 22uF 16V
150µF 16V 24 178 363 150 4 10 5.23
12
2 × 10µF 50V
100µF 50V
4 × 47uF 16V
None 24 238 488 90 4 10 5.23
12
2 × 10µF 50V
100µF 50V
2 × 22uF 16V
150µF 16V 36 181 369 150 4 10 5.23
12
2 × 10µF 50V
100µF 50V
4 × 47uF 16V
None 36 244 500 90 4 10 5.23