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LTM4602HVIV#PBF

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LTM4602HV
1
4602hvf
6A, 28V
IN
High Effi ciency
DC/DC µModule
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 effi ciency design delivers 6A
continuous current (8A peak), needing no heat sinks or
airfl ow to meet power specifi cations. Only bulk input and
output capacitors are needed to fi nish the design.
The low profi le 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
sacrifi cing 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 profi le (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.
■
Telecom and Networking Equipment
■
Servers
■
Industrial Equipment
■
Point of Load Regulation
■
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% Effi ciency
■
Programmable Soft-Start
■
Output Overvoltage Protection
■
Optional Short-Circuit Shutdown Timer
■
Pb-Free (e4) RoHS Compliant Package with Gold-Pad
Finish
■
Small Footprint, Low Profi le (15mm × 15mm ×
2.8mm) LGA Package
6A µModule Power Supply with 4.5V to 28V Input
APPLICATIO S
U
FEATURES
DESCRIPTIO
U
TYPICAL APPLICATIO
U
Effi ciency vs Load Current with 24V
IN
(FCB = 0)
V
IN
C
IN
4602HV TA01a
LTM4602HV
PGND SGND
V
OUT
V
OSET
V
IN
4.5V TO 28V
ABS MAX
V
OUT
2.5V
6A
C
OUT
31.6k
, 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.
LOAD CURRENT (A)
0
0
EFFICIENCY (%)
10
30
40
50
4
90
4602HV G03
20
2
1
5
36
60
70
80
1.2V
OUT
1.5V
OUT
1.8V
OUT
2.5V
OUT
3.3V
OUT
3.3V
OUT
(1MHz)
LTM4602HV
2
4602hvf
FCB, EXTV
CC
, PGOOD, RUN/SS, V
OUT
.......... –0.3V to 6V
V
IN
, SV
IN
, f
ADJ
............................................ –0.3V to 28V
V
OSET
, 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
(Note 1)
The
● denotes the specifi cations which apply over the –40°C to 85°C
temperature range, otherwise specifi cations are at T
A
= 25°C, V
IN
= 12V. External C
IN
= 120µF, C
OUT
= 200µF/Ceramic per typical
application (front page) confi guration.
ELECTRICAL CHARACTERISTICS
ABSOLUTE AXI U RATI GS
W
WW
U
PACKAGE/ORDER I FOR ATIO
UUW
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN(DC)
Input DC Voltage AbsMax 28V for Tolerance on 24V Inputs
●
4.5 28 V
V
OUT(DC)
Output Voltage FCB = 0V
V
IN
= 5V or 12V, V
OUT
= 1.5V, I
OUT
= 0A
●
1.478
1.470
1.50
1.50
1.522
1.530
V
V
Input Specifi cations
V
IN(UVLO)
Under Voltage Lockout Threshold I
OUT
= 0A 3.4 4 V
I
INRUSH(VIN)
Input Inrush Current at Startup I
OUT
= 0A, V
OUT
= 1.5V, FCB = 0
V
IN
= 5V
V
IN
= 12V
V
IN
= 24V
0.6
0.7
0.8
A
A
A
I
Q(VIN)
Input Supply Bias Current I
OUT
= 0A, EXTV
CC
Open
V
IN
= 12V, V
OUT
= 1.5V, FCB = 5V
V
IN
= 12V, V
OUT
= 1.5V, FCB = 0V
V
IN
= 24V, V
OUT
= 2.5V, FCB = 5V
V
IN
= 24V, V
OUT
= 2.5V, FCB = 0V
Shutdown, RUN = 0.8V, V
IN
= 12V
1.2
42
1.8
36
50 100
mA
mA
mA
mA
µA
Min On Time 100 ns
Min Off Time 400 ns
I
S(VIN)
Input Supply Current V
IN
= 12V, V
OUT
= 1.5V, I
OUT
= 6A
V
IN
= 12V, V
OUT
= 3.3V, I
OUT
= 6A
V
IN
= 5V, V
OUT
= 1.5V, I
OUT
= 6A
V
IN
= 24V to 3.3V at 6A, EXTV
CC
= 5V
0.88
1.50
2.08
0.98
A
A
A
A
RUN/SS
FCB
PGOOD
V
IN
PGND
V
OUT
COMP
SGND
EXTV
CC
V
OSET
f
ADJ
SV
IN
LGA PACKAGE
104-LEAD (15mm × 15mm × 2.8mm)
TOP VIEW
T
JMAX
= 125°C, θ
JA
= 15°C/W, θ
JC
= 6°C/W,
θ
JA
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 specifi ed with wider operating temperature ranges.
*The temperature grade is identifi ed by a label on the shipping container.
LTM4602HV
3
4602hvf
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTM4602HVE is guaranteed to meet performance
specifi cations from 0°C to 85°C. Specifi cations over the –40°C to 85°C
operating temperature range are assured by design, characterization
and correlation with statistical process controls. The LTM4602HVI is
guaranteed and tested over the –40°C to 85°C temperature range.
Note 3: Refer to current de-rating curves and thermal application note.
Note 4: Test assumes current derating verses temperature.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Output Specifi cations
I
OUTDC
Output Continuous Current Range
(See Output Current Derating Curves for
Different V
IN
, V
OUT
and T
A
)
V
IN
= 12V, V
OUT
= 1.5V
V
IN
= 24V, V
OUT
= 2.5V (Note 3)
0
0
6
6
A
A
ΔV
OUT(LINE)
V
OUT
Line Regulation Accuracy V
OUT
= 1.5V. FCB = 0V, I
OUT
= 0A,
V
IN
= 4.5V to 28V
●
0.15 %
ΔV
OUT(0A-6A)
V
OUT
Load Regulation Accuracy V
OUT
= 1.5V. FCB = 0V, I
OUT
= 0A to 6A,
V
IN
= 5V, V
IN
= 12V (Note 4)
●
±0.25
±0.5
±0.5
±1
%
%
V
OUT(AC)
Output Ripple Voltage V
IN
= 12V, V
OUT
= 1.5V, FCB = 0V, I
OUT
= 0A 10 15 mV
P-P
fs Output Ripple Voltage Frequency FCB = 0V, I
OUT
= 6A, V
IN
= 12V,
V
OUT
= 1.5V
800 kHz
t
START
Turn-On Time V
OUT
= 1.5V, I
OUT
= 1A
V
IN
= 12V
V
IN
= 5V
0.5
0.7
ms
ms
ΔV
OUTLS
Voltage Drop for Dynamic Load Step V
OUT
= 1.5V, Load Step: 0A/µs to 3A/µs
C
OUT
= 22µF 6.3V, 330µF 4V Pos Cap,
See Table 2
30 mV
t
SETTLE
Settling Time for Dynamic Load Step
V
IN
= 12V
Load: 10% to 90% to 10% of Full Load 25 µs
I
OUTPK
Output Current Limit Output Voltage in Foldback
V
IN
= 24V, V
OUT
= 2.5V
V
IN
= 12V, V
OUT
= 1.5V
V
IN
= 5V, V
OUT
= 1.5V
9
9
9
A
A
A
Control Stage
V
OSET
Voltage at V
OSET
Pin I
OUT
= 0A, V
OUT
= 1.5V
●
0.591
0.594
0.6
0.6
0.609
0.606
V
V
V
RUN/SS
RUN ON/OFF Threshold 0.8 1.5 2 V
I
RUN(C)/SS
Soft-Start Charging Current V
RUN/SS
= 0V –0.5 –1.2 –3 µA
I
RUN(D)/SS
Soft-Start Discharging Current V
RUN/SS
= 4V 0.8 1.8 3 µA
V
IN
– SV
IN
EXTV
CC
= 0V, FCB = 0V 100 mV
I
EXTVCC
Current into EXTV
CC
Pin EXTV
CC
= 5V, FCB = 0V, V
OUT
= 1.5V,
I
OUT
= 0A
16 mA
R
FBHI
Resistor Between V
OUT
and FB Pins 100 kΩ
V
FCB
Forced Continuous Threshold 0.57 0.6 0.63 V
I
FCB
Forced Continuous Pin Current V
FCB
= 0.6V –1 –2 µA
PGOOD Output
ΔV
OSETH
PGOOD Upper Threshold V
OSET
Rising 7.5 10 12.5 %
ΔV
OSETL
PGOOD Lower Threshold V
OSET
Falling –7.5 –10 –12.5 %
ΔV
OSET(HYS)
PGOOD Hysteresis V
OSET
Returning 2 %
V
PGL
PGOOD Low Voltage I
PGOOD
= 5mA 0.15 0.4 V
The ● denotes the specifi cations which apply over the –40°C to 85°C
temperature range, otherwise specifi cations are at T
A
= 25°C, V
IN
= 12V. Per typical application (front page) confi guration.
ELECTRICAL CHARACTERISTICS
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LTM4602HVIV#PBF

Mfr. #:
Buy LTM4602HVIV#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators 28V, 6A Step-down Module Regulator
Lifecycle:
New from this manufacturer.
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