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PDF LTM4600 Data sheet ( Hoja de datos )
| Número de pieza | LTM4600 | |
| Descripción | High Efficiency DC/DC Module | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LTM4600 (archivo pdf) en la parte inferior de esta página. Total 24 Páginas | ||
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FEATURES
■ Complete Switch Mode Power Supply
■ Wide Input Voltage Range: 4.5V to 20V
■ 10A DC, 14A Peak Output Current
■ Parallel Two µModules™ for 20A Output Current
■ 0.6V to 5V Output Voltage
■ 1.5% Regulation
■ Ultrafast Transient Response
■ Current Mode Control
■ Pb-Free (e4) RoHS Compliant Package
■ Up to 92% Efficiency
■ Programmable Soft-Start
■ Output Overvoltage Protection
■ Optional Short-Circuit Shutdown Timer
■ Small Footprint, Low Profile (15mm × 15mm ×
2.8mm) Surface Mount LGA Package
U
APPLICATIO S
■ Telecom and Networking Equipment
■ Servers
■ Industrial Equipment
■ Point of Load Regulation
■ Other General Purpose Step Down DC/DC
, LTC, LT and LTM are registered trademarks of Linear Technology Corporation.
µModule is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners. Protected by U.S. Patents including 5481178,
6100678, 6580258, 5847554, 6304066.
Electrical Specifications Subject to Change
LTM4600
10A High Efficiency
DC/DC µModule
DESCRIPTIO
The LTM®4600 is a complete 10A, DC/DC step down power
supply. Included in the package are the switching control-
ler, power FETs, inductor, and all support components.
Operating over an input voltage range of 4.5V to 20V, the
LTM4600 supports an output voltage range of 0.6V to 5V,
set by a single resistor. This high efficiency design delivers
10A continuous current (14A peak), needing no heat sinks
or airflow to meet power specifications. Only bulk input
and output capacitors are needed to finish the design.
The low profile package (2.8mm) enables utilization of
unused space on the bottom of PC boards for high density
point of load regulation. High switching frequency and an
adaptive on-time current mode architecture enables a very
fast transient response to line and load changes without
sacrificing stability. Fault protection features include
integrated overvoltage and short circuit protection with
a defeatable shutdown timer. A built-in soft-start timer is
adjustable with a small capacitor.
The LTM4600 is packaged in a thermally enhanced, compact
(15mm × 15mm) and low profile (2.8mm) over-molded
Land Grid Array (LGA) package suitable for automated
assembly by standard surface mount equipment. The
LTM4600 is Pb-free and RoHS certified.
TYPICAL APPLICATIO
10A µModule Power Supply with 4.5V to 20V Input
VIN
4.5V TO 20V
VIN VOUT
CIN
LTM4600
COUT
VOUT
1.5V
10A
VOSET
PGND SGND
66.5k
4600 TA01a
Efficiency vs Load Current
with 12VIN (FCB = 0)
100
90
80
70
60
50
40
0.6VOUT
1.2VOUT
1.5VOUT
30 2.5VOUT
3.3VOUT
20
0 2 4 6 8 10 12
LOAD CURRENT (A)
4600 TA01b
PRERELEASE
4600p
1
1 page  
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TYPICAL PERFOR A CE CHARACTERISTICS
Start-Up, IOUT = 0A
(See Figure 17)
VOUT
(0.5V/DIV)
IIN
(0.5A/DIV)
Start-Up, IOUT = 10A
(Resistive Load) (See Figure 17)
VOUT
(0.5V/DIV)
IIN
(0.5A/DIV)
200µs/DIV
VIN = 12V
VOUT = 1.5V
COUT = 200µF
NO EXTERNAL SOFT-START CAPACITOR
4600 G10
200µs/DIV
VIN = 12V
VOUT = 1.5V
COUT = 200µF
NO EXTERNAL SOFT-START CAPACITOR
4600 G11
LTM4600
Short-Circuit Protection,
IOUT = 0A (See Figure 17)
VOUT
(0.5V/DIV)
IIN
(0.2A/DIV)
20µs/DIV
VIN = 12V
VOUT = 1.5V
COUT = 2× 200µF/X5R
NO EXTERNAL SOFT-START CAPACITOR
4600 G12
Short-Circuit Protection,
IOUT = 10A (See Figure 17)
VOUT
(0.5V/DIV)
IIN
(0.5A/DIV)
20µs/DIV
VIN = 12V
VOUT = 1.5V
COUT = 2× 200µF/X5R
NO EXTERNAL SOFT-START CAPACITOR
4600 G13
Current Limit with 12VIN
18
16
14
12
10
8
6
4
2
0
0123456
OUTPUT VOLTAGE (V)
4600 G14
Current Limit with 9VIN
18
16
14
12
10
8
6
4
2
0
0123456
OUTPUT VOLTAGE (V)
4600 G15
Current Limit with 5VIN
18
16
14
12
10
8
6
4
2
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
OUTPUT VOLTAGE (V)
4600 G16
VIN to VOUT Stepdown Ratio
5.5
5V
5.0
4.5
4.0
3.5 3.3V
3.0
2.5V
2.5
2.0 1.8V
1.5 1.5V
1.0 1.2V
0.5
0
0
0.6V
5 10
VIN (V)
15
20
4600 G17
PRERELEASE
4600p
5
5 Page 
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LTM4600
APPLICATIO S I FOR ATIO
Table 2. Output Voltage Response Verses Component Matrix
TYPICAL MEASURED VALUES
COUT1 VENDORS
TDK
PART NUMBER
C4532X5R0J107MZ (100UF,6.3V)
TAIYO YUDEN
JMK432BJ107MU-T ( 100µF, 6.3V)
TAIYO YUDEN
JMK316BJ226ML-T501 ( 22µF, 6.3V)
COUT2 VENDORS
SANYO POS CAP
SANYO POS CAP
SANYO POS CAP
PART NUMBER
6TPE330MIL (330µF, 6.3V)
2R5TPE470M9 (470µF, 2.5V)
4TPE470MCL (470µF, 4V)
VOUT
CIN
(V) (CERAMIC)
CIN
(BULK)
COUT1
(CERAMIC)
COUT2
(BULK)
CCOMP C3 VIN DROOP PEAK TO PEAK RECOVERY TIME LOAD STEP
(V) (mV)
(mV)
(µs) (A/µs)
1.2 2 × 10µF 25V 150µF 35V 3 × 22µF 6.3V 470µF 4V NONE 100pF 12
35
68
25 5
1.2 2 × 10µF 25V 150µF 35V 3 × 22µF 6.3V 470µF 4V NONE 100pF 5
35
68
25 5
1.5 2 × 10µF 25V 150µF 35V 3 × 22µF 6.3V 470µF 4V NONE 100pF 12
36
75
25 5
1.5 2 × 10µF 25V 150µF 35V 3 × 22µF 6.3V 470µF 4V NONE 100pF 5
36
75
25 5
1.8 2 × 10µF 25V 150µF 35V 3 × 22µF 6.3V 470µF 4V NONE 100pF 12
40
81
30 5
1.8 2 × 10µF 25V 150µF 35V 3 × 22µF 6.3V 470µF 4V NONE 100pF 5
40
81
30 5
2.5 2 × 10µF 25V 150µF 35V 3 × 22µF 6.3V 470µF 4V NONE 100pF 12
51
102
30 5
2.5 2 × 10µF 25V 150µF 35V 3 × 22µF 6.3V 470µF 4V NONE 100pF 5
57
116
30 5
3.3 2 × 10µF 25V 150µF 35V 3 × 22µF 6.3V 470µF 4V NONE 100pF 12
64
129
35 5
3.3 2 × 10µF 25V 150µF 35V 3 × 22µF 6.3V 470µF 4V NONE 100pF 7
82
166
35 5
1.2 2 × 10µF 25V 150µF 35V 1 × 100µF 6.3V 470µF 2.5V NONE 100pF 12
35
70
20 5
1.2 2 × 10µF 25V 150µF 35V 1 × 100µF 6.3V 470µF 2.5V NONE 100pF 5
35
70
20 5
1.5 2 × 10µF 25V 150µF 35V 1 × 100µF 6.3V 470µF 2.5V NONE 100pF 12
37
79
20 5
1.5 2 × 10µF 25V 150µF 35V 1 × 100µF 6.3V 470µF 2.5V NONE 100pF 5
37
79
20 5
1.8 2 × 10µF 25V 150µF 35V 1 × 100µF 6.3V 470µF 2.5V NONE 100pF 12
44
85
20 5
1.8 2 × 10µF 25V 150µF 35V 1 × 100µF 6.3V 470µF 2.5V NONE 100pF 5
44
88
20 5
2.5 2 × 10µF 25V 150µF 35V 1 × 100µF 6.3V 470µF 4V NONE 100pF 12
48
103
30 5
2.5 2 × 10µF 25V 150µF 35V 1 × 100µF 6.3V 470µF 4V NONE 100pF 5
48
103
30 5
3.3 2 × 10µF 25V 150µF 35V 1 × 100µF 6.3V 470µF 4V NONE 100pF 12
52
106
30 5
3.3 2 × 10µF 25V 150µF 35V 1 × 100µF 6.3V 470µF 4V NONE 100pF 7
66
132
30 5
1.2 2 × 10µF 25V 150µF 35V 2 × 100µF 6.3V 330µF 6.3V NONE 100pF 12
40
80
20 5
1.2 2 × 10µF 25V 150µF 35V 2 × 100µF 6.3V 330µF 6.3V NONE 100pF 5
40
80
20 5
1.5 2 × 10µF 25V 150µF 35V 2 × 100µF 6.3V 330µF 6.3V NONE 100pF 12
44
89
20 5
1.5 2 × 10µF 25V 150µF 35V 2 × 100µF 6.3V 330µF 6.3V NONE 100pF 5
44
84
20 5
1.8 2 × 10µF 25V 150µF 35V 2 × 100µF 6.3V 330µF 6.3V NONE 100pF 12
44
91
20 5
1.8 2 × 10µF 25V 150µF 35V 2 × 100µF 6.3V 330µF 6.3V NONE 100pF 5
46
91
20 5
2.5 2 × 10µF 25V 150µF 35V 2 × 100µF 6.3V 330µF 6.3V NONE 100pF 12
56
113
30 5
2.5 2 × 10µF 25V 150µF 35V 2 × 100µF 6.3V 330µF 6.3V NONE 100pF 5
56
113
30 5
3.3 2 × 10µF 25V 150µF 35V 2 × 100µF 6.3V 330µF 6.3V NONE 100pF 12
64
126
30 5
3.3 2 × 10µF 25V 150µF 35V 2 × 100µF 6.3V 330µF 6.3V NONE 100pF 7
64
126
30 5
1.2 2 × 10µF 25V 150µF 35V 4 × 100µF 6.3V
NONE
NONE 100pF 12
49
98
20 5
1.2 2 × 10µF 25V 150µF 35V 4 × 100µF 6.3V
NONE
NONE 100pF 5
49
98
20 5
1.5 2 × 10µF 25V 150µF 35V 4 × 100µF 6.3V
NONE
NONE 100pF 12
54
108
20 5
1.5 2 × 10µF 25V 150µF 35V 4 × 100µF 6.3V
NONE
NONE 100pF 5
61
118
20 5
1.8 2 × 10µF 25V 150µF 35V 4 × 100µF 6.3V
NONE
NONE 100pF 12
62
125
20 5
1.8 2 × 10µF 25V 150µF 35V 4 × 100µF 6.3V
NONE
NONE 100pF 5
62
128
20 5
2.5 2 × 10µF 25V 150µF 35V 4 × 100µF 6.3V
NONE
NONE 100pF 12
70
159
25 5
2.5 2 × 10µF 25V 150µF 35V 4 × 100µF 6.3V
NONE
NONE 100pF 5
60
115
25 5
3.3 2 × 10µF 25V 150µF 35V 4 × 100µF 6.3V
NONE
NONE 100pF 12
76
144
25 5
3.3 2 × 10µF 25V 150µF 35V 4 × 100µF 6.3V
NONE
NONE 100pF 7
100
200
25 5
5 2 × 10µF 25V 150µF 35V 4 × 100µF 6.3V
NONE
NONE 100pF 15 188
375
25 5
5 2 × 10µF 25V 150µF 35V 4 × 100µF 6.3V
NONE
NONE 100pF 20 159
320
25 5
PRERELEASE
4600p
11
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet LTM4600.PDF ] | |
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