DC/DC uModule. LTM4602HV Datasheet

LTM4602HV uModule. Datasheet pdf. Equivalent


Part LTM4602HV
Description High Efficiency DC/DC uModule
Feature U U FEATURES ■ Complete Switch Mode Power Supply ■ Wide Input Voltage Range: 4.5V to 28V ■ 6A DC, T.
Manufacture Linear Technology
Datasheet
Download LTM4602HV Datasheet


U U FEATURES ■ Complete Switch Mode Power Supply ■ Wide Inp LTM4602HV Datasheet
Recommendation Recommendation Datasheet LTM4602HV Datasheet




LTM4602HV
FEATURES
Complete Switch Mode Power Supply
Wide Input Voltage Range: 4.5V to 28V
6A DC, Typical 8A Peak Output Current
0.6V to 5V Output Voltage
1.5% Output Voltage Regulation
Ultrafast Transient Response
Parallel µModule™ DC/DC Converters
Current Mode Control
Pin Compatible with the LTM4600 and LTM4602
Up to 92% Efficiency
Programmable Soft-Start
Output Overvoltage Protection
Optional Short-Circuit Shutdown Timer
Pb-Free (e4) RoHS Compliant Package with Gold-Pad
Finish
Small Footprint, Low Profile (15mm × 15mm ×
2.8mm) LGA Package
U
APPLICATIO S
Telecom and Networking Equipment
Servers
Industrial Equipment
Point of Load Regulation
, LT, LTC 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.
LTM4602HV
6A, 28VIN High Efficiency
DC/DC µModule
DESCRIPTIO
The LTM®4602HV is a complete 6A, DC/DC step down
power supply with up to 28V input operation. Included
in the package are the switching controller, power FETs,
inductor, and all support components. Operating over
an input voltage range of 4.5V to 28V, the LTM4602HV
supports an output voltage range of 0.6V to 5V, set by
a single resistor. This high efficiency design delivers 6A
continuous current (8A 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 LTM4602HV is packaged in a thermally enhanced, com-
pact (15mm × 15mm) and low profile (2.8mm) over-molded
Land Grid Array (LGA) package suitable for automated
assembly by standard surface mount equipment. For the
4.5V to 20V input range version, refer to the LTM4602.
TYPICAL APPLICATIO
6A µModule Power Supply with 4.5V to 28V Input
VIN
4.5V TO 28V
ABS MAX
VIN VOUT
CIN LTM4602HV COUT
VOUT
2.5V
6A
VOSET
PGND SGND
31.6k
4602HV TA01a
Efficiency vs Load Current with 24VIN (FCB = 0)
90
80
70
60
50
40
30
20
10
0
0
1.2VOUT
1.5VOUT
1.8VOUT
2.5VOUT
3.3VOUT
3.3VOUT (1MHz)
1234
LOAD CURRENT (A)
5
6
4602HV G03
4602hvf
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LTM4602HV
LTM4602HV
ABSOLUTE AXI U RATI GS
(Note 1)
FCB, EXTVCC, PGOOD, RUN/SS, VOUT.......... –0.3V to 6V
VIN, SVIN, fADJ............................................ –0.3V to 28V
VOSET, COMP............................................. –0.3V to 2.7V
Operating Temperature Range (Note 2) ... –40°C to 85°C
Junction Temperature ........................................... 125°C
Storage Temperature Range................... –55°C to 125°C
UW U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
VIN
PGND
COMP
SGND
RUN/SS
FCB
PGOOD
VOUT
LGA PACKAGE
104-LEAD (15mm × 15mm × 2.8mm)
TJMAX = 125°C, θJA = 15°C/W, θJC = 6°C/W,
θJA DERIVED FROM 95mm × 76mm PCB WITH 4 LAYERS
WEIGHT = 1.7g
ORDER PART NUMBER LGA PART MARKING*
LTM4602HVEV#PBF
LTM4602HVIV#PBF
LTM4602HVV
LTM4602HVV
Consult LTC Marketing for parts specified with wider operating temperature ranges.
*The temperature grade is identified by a label on the shipping container.
ELECTRICAL CHARACTERISTICS The denotes the specifications which apply over the –40°C to 85°C
temperature range, otherwise specifications are at TA = 25°C, VIN = 12V. External CIN = 120µF, COUT = 200µF/Ceramic per typical
application (front page) configuration.
SYMBOL
VIN(DC)
VOUT(DC)
PARAMETER
Input DC Voltage
Output Voltage
Input Specifications
VIN(UVLO)
IINRUSH(VIN)
Under Voltage Lockout Threshold
Input Inrush Current at Startup
IQ(VIN)
Input Supply Bias Current
Min On Time
Min Off Time
IS(VIN)
Input Supply Current
CONDITIONS
MIN TYP MAX UNITS
AbsMax 28V for Tolerance on 24V Inputs 4.5
28 V
FCB = 0V
VIN = 5V or 12V, VOUT = 1.5V, IOUT = 0A
1.478 1.50 1.522
1.470 1.50 1.530
V
V
IOUT = 0A
IOUT = 0A, VOUT = 1.5V, FCB = 0
VIN = 5V
VIN = 12V
VIN = 24V
IOUT = 0A, EXTVCC Open
VIN = 12V, VOUT = 1.5V, FCB = 5V
VIN = 12V, VOUT = 1.5V, FCB = 0V
VIN = 24V, VOUT = 2.5V, FCB = 5V
VIN = 24V, VOUT = 2.5V, FCB = 0V
Shutdown, RUN = 0.8V, VIN = 12V
VIN = 12V, VOUT = 1.5V, IOUT = 6A
VIN = 12V, VOUT = 3.3V, IOUT = 6A
VIN = 5V, VOUT = 1.5V, IOUT = 6A
VIN = 24V to 3.3V at 6A, EXTVCC = 5V
3.4 4
V
0.6 A
0.7 A
0.8 A
1.2
42
1.8
36
50 100
100
mA
mA
mA
mA
µA
ns
400 ns
0.88 A
1.50 A
2.08 A
0.98 A
4602hvf
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