ltm4628 Linear Technology Corporation, ltm4628 Datasheet - Page 27

• Manufacturer Part Number: ltm4628
• Description: Ltm4628 - Dual 8a Or Single 16a Dc/dc ?module Regulator
• Manufacturer: Linear Technology Corporation

APPLICATIONS INFORMATION
Table 4 Output Voltage Response vs Component Matrix (Refer to Figure 28) 0A to 4A Load Step Typical Measured Values
C
CERAMIC VENDORS
AVX
Murata
TDK
Murata
AVX
* Bulk capacitance is optional if V
OUT1
V
(V)
1.2
1.2
1.5
1.5
1.8
1.8
2.5
2.5
3.3
3.3
OUT
1
1
5
AND C
(CERAMIC)
OUT2
22μF × 3
22μF × 3
22μF × 3
22μF × 3
22μF × 3
22μF × 3
22μF × 3
22μF × 3
22μF × 3
22μF × 3
22μF × 3
22μF × 3
22μF × 3
C
IN
100μF 6.3V C4532X5R0J107MZ
100μF 6.3V GRM32ER60J107M
100μF 6.3V 18126D107MAT
10μF 35V
22μF 16V
VALUE
(BULK)*
47μF
47μF
47μF
47μF
47μF
47μF
47μF
47μF
47μF
47μF
47μF
47μF
47μF
C
IN
IN
has very low input impedance.
PART NUMBER
1812DD106KAT
GRM43ER61C226KE01
(CERAMIC)
100μF × 4
100μF × 4
100μF × 4
100μF × 4
100μF × 4
100μF
100μF
100μF
100μF
100μF
100μF
100μF
100μF
C
OUT1
(BULK)
470μF
470μF
470μF
470μF
470μF
470μF
220μF
C
OUT2
C
BULK VENDORS
Sanyo POSCAP
Sanyo POSCAP
OUT1
AND C
(pF)
C
47
47
47
47
47
47
47
FF
OUT2
5,12
5,12
5,12
5,12
5,12
5,12
5,12
5,12
5,12
5,12
5,12
5,12
V
(V)
12
470μF 6.3V
470μF 2R5 2R5TPD470M5 47μF 35V 35SVPD47M Sanyo Oscon
IN
VALUE
DROOP
(mV)
100
125
60
50
60
55
60
66
60
65
70
70
80
PART NUMBER
6TPD470M
Deviation
(mV)
P-P
120
100
120
110
120
120
120
130
140
140
160
200
200
RECOVERY
TIME (μs)
(BULK)
C
30
20
30
20
30
20
30
20
30
30
30
30
30
IN
NUMBER
(A/μs)
LOAD
STEP
PART
4
4
4
4
4
4
4
4
4
4
4
4
4
LTM4628
(kΩ)
90.9
90.9
60.4
60.4
40.2
40.2
30.1
30.1
19.1
19.1
13.3
13.3
8.25
R
FB
VENDORS
27
Freq.
(kHz)
400
400
500
500
500
500
500
500
500
500
700
700
750
4628f