uModule Regulator. LTM4636-1 Datasheet

LTM4636-1 Regulator. Datasheet pdf. Equivalent

LTM4636-1 Datasheet
Recommendation LTM4636-1 Datasheet
Part LTM4636-1
Description 40A uModule Regulator
Feature LTM4636-1; LTM4636-1 40A µModule Regulator with Overvoltage/ Overtemperature Protection Features Description.
Manufacture Linear Technology
Datasheet
Download LTM4636-1 Datasheet




Linear Technology LTM4636-1
LTM4636-1
40A µModule Regulator
with Overvoltage/
Overtemperature Protection
Features
Description
nn Overtemperature, Input/Output Overvoltage
Protection
nn Trips Upstream Power Source or Circuit Breaker
nn Stacked Inductor Acts as Heat Sink
nn Wide Input Voltage Range: 4.7V to 15V
nn 0.6V to 3.3V Output Voltage Range
nn ±1.3% Total DC Output Voltage Error (–40°C to 125°C)
nn Differential Remote Sense Amplifier for Precision
Regulation
nn Current Mode Control/Fast Transient Response
nn Frequency Synchronization
nn Parallel Current Sharing (Up to 240A)
nn 88% Efficiency (12VIN, 1VOUT) at 40A
nn Overcurrent Foldback Protection
nn Overtemperature Shutdown
nn 16mm × 16mm × 7.07mm BGA Package
Applications
The LTM®4636-1 is a 40A step-down µModule® (power
module) switching regulator with stacked inductor as a
heat sink for heat dissipation and cooler operation in a
small package. The LTM4636-1 detects overtemperature
and input/output overvoltage conditions and can trip an up-
stream power supply or circuit breaker to protect itself and
its load. The exposed inductor as a heat sink permits direct
contact with airflow from any direction. The LTM4636-1
can deliver 40W (12VIN, 1VOUT, 40A, 200LFM) with only
40°C rise over the ambient temperature. Full-power 40W
is delivered up to 83°C ambient and half-power 20W is
supported at 110°C ambient.
The LTM4636-1 operates at 92%, 90% and 88% efficiency
delivering 15A, 30A and 40A, respectively, to a 1V load
(12VIN). The µModule regulator is scalable where four
in current sharing deliver 160W with only 40°C rise and
88% efficiency (12VIN, 1VOUT, 400LFM). The LTM4636-1
is offered in 16mm × 16mm × 7.07mm BGA package.
nn Telecom Servers and Networking Equipment
nn Industrial Equipment and Medical Systems
L, LT, LTC, LTM, PolyPhase, Burst Mode, µModule, Linear Technology, the Linear logo are
registered trademarks and LTpowerCAD are trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners. Protected by U.S. Patents,
including 5481178, 5847554, 6580258, 6304066, 6476589, 6774611, 6677210, 8163643.
Typical Application
1V, 40A DC/DC µModule Regulator
UPSTREAM
BIAS
4.5V TO 5.5V RANGE
BIAS
VSYS
4.7V
TO
15V
REGULATOR
HOT SWAP
CIRCUIT
BREAKER
VIN ≤ 5.5V, TIE VIN AND PVCC
TOGETHER, TIE RUNP TO GND.
VIN > 5.5V, THEN OPERATE AS SHOWN
+
100µF
25V
22µF
16V
×5
0.1µF
PVCC
15k
VIN
RUNC
RUNP
INTVCC
INTVCC
PVCC
BIAS PVCC
OTP_SET
OVP_SET
61.9k
22µF 86.6k
OPTIONAL CROWBAR
INTVCC HIZREG
CROWBAR
OPTIONAL OVERTEMPERATURE
AND OVERVOLTAGE FAULT SIGNAL
OVER_TEMP
OVP_TRIP
0.01µF 100k
34.8k
PINS NOT USED IN THIS CIRCUIT:
CLKOUT, GMON, PGOOD, PHMODE, PWM,
FREQ LTM4636-1
TRACK/SS
MODE/PLLIN
SNSP1
SNSP2
COMPA
COMPB
VOUT
VOUTS1+
VOUTS1–
VFB
1V
+ 470µF
6.3V
×3
SW, TEST1, TEST2, TEST3, TMON
TEMP+ TEMPSGND PGND
7.5k
OPTIONAL TEMP MONITOR
46361 TA01a
See the LTM4636 for simpler circuit and fewer features.
VOUT
1V, 40A
100µF
6.3V
×4
For more information www.linear.com/LTM4636-1
1325V0IkNH,z1vVsOOUTutEpfufitcCieunrcreynatt
100
95
90
85
80
75
70
0
5 10 15 20 25 30 35 40
OUTPUT CURRENT (A) 46361 TA01b
46361f
1



Linear Technology LTM4636-1
LTM4636-1
Absolute Maximum Ratings (Note 1)
VIN, SW, HZBREG, RUNP, OVR_TRIP,
OVER TEMP................................................ –0.3V to 16V
VOUT........................................................... –0.3V to 3.5V
PGOOD, RUNC, TMON, PVCC, MODE/PLLIN,
PHMODE, FREQ, TRACK/SS, TEST1, TEST2,
VOUTS1–, VOUTS1+, SNSP1, SNSP2, TEST3,
OVP_SET, CROWBAR..................... –0.3V to INTVCC (5V)
VFB, COMPA, COMPB (Note 7)................... –0.3V to 2.7V
BIAS.............................................................. –0.3V to 6V
PTEVMCCPA+,dTdEitMioPna.l..O...u..t.p..u..t..C..u..r..r.e..n..t..................................
0mA to 50mA
–0.3V to 0.8V
INTVCC Peak Output Current (Note 6).....................20mA
Internal Operating Temperature Range
(Note 2)................................................... –40°C to 125°C
Storage Temperature Range................... –55°C to 125°C
Reflow (Peak Body) Temperature........................... 250°C
Note: PWM, CLKOUT, and GMON are outputs only.
Pin Configuration
TOP VIEW
VOUTS1– VOUTS1+ COMPB
12345678
A
B VOUT
9 10 11 12
TEST2
HIZREG
SNSP1
SNSP2
TRACK/SS
RUNC
PGOOD
C
D
E
SGND
CLKOUT
F
G
MODE/PLLIN
H
J
TEST3
VFB COMPA
GND
INTVCC
FREQ GND
BIAS
TEST1
PWM TMON
GND
OVER_TEMP
OVP_TRIP
CROWBAR
OVP_SET
PHMODE
RUNP
PVCC
OTTEETMMP_PPS–+ET
GMON
K
GND
L
VIN
SW
M
BGA PACKAGE
144-LEAD (16mm × 16mm × 7.07mm)
TJMAX = 125°C, θJA = 7.5°C/W, θJCbottom = 3°C/W, θJCtop = 15°C/W, θJBA = 12°C/W
θJA = DERIVED FROM 95mm × 76mm PCB WITH 6 LAYERS, WEIGHT = 3.95g
θ VALUES DETERMINED PER JESD51-12
Note: θJA = (θJCbottom + θJBA)||θJCtop; θJBA is Board to Ambient
Order Information http://www.linear.com/product/LTM4636-1#orderinfo
LEAD FREE FINISH
TRAY
PART MARKING* PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTM4636-1EY#PBF
LTM4636-1EY#PBF
LTM4636-1
144-Lead (16mm × 16mm × 7.07mm) BGA –40°C to 125°C
LTM4636-1IY#PBF
LTM4636-1IY#PBF
LTM4636-1
144-Lead (16mm × 16mm × 7.07mm) BGA –40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
This product is only offered in trays. For more information go to: http://www.linear.com/packaging/
46361f
2 For more information www.linear.com/LTM4636-1



Linear Technology LTM4636-1
LTM4636-1
E lectrical Characteristics The l denotes the specifications which apply over the specified internal
operating temperature range (Note 2), otherwise specifications are at TA = 25°C. VIN = 12V, per the Typical Application in Figure 20.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VIN
VOUT
VOUT(DC)
Input DC Voltage
VOUT Range
DC Output Voltage, Total
Variation with Line and Load
Input Specifications
VIN ≤ 5.5V, Tie VIN and PVCC Together, Tie RUNP to GND
CIN = 22µF × 5
COUT = 100µF × 4 Ceramic, 470µF POSCAP × 3
RFB = 40.2k, MODE_PLLIN = GND
VIN = 4.70V to 15V, IOUT = 0A to 40A (Note 4)
l 4.70
15
l 0.6
3.3
l 1.4805 1.50 1.5195
V
V
V
VRUNC
VRUNCHYS
VRUNP
RUNP HYS
RUNC Pin On Threshold
RUNC Pin On Hysteresis
RUNP Pin On Threshold
RUNP Pin Hysteresis
VRUNC Rising
RUNP Pin Rising
1.1
l 0.7
1.22 1.35
150
0.8 0.9
60
V
mV
V
mV
HIZREG
HIZREG HYS
IQ(VIN)
HIZREG Input Threshold
HIZREG Hysteresis
Input Supply Bias Current
IS(VIN)
Input Supply Current
Output Specifications
VIN = 12V, RUNC = 5V, RUNP = VIN, VOUT = 1.5V
VIN = 12V, RUNC = 5V, RUNP = VIN, VOUT = 1.5V
VIN = 12V, VOUT = 1.5V, Burst Mode Operation, IOUT = 0.1A
VVIINN
=
=
12V,
12V,
VVOOUUTT
=
=
1.5V,
1.5V,
PSuwlistec-hSinkgipCpoinngtiMnuoodues,,IIOOUUTT==00..11AA
Shutdown, RUN = 0, VIN = 12V
VVIINN
=
=
51V2V, V, VOUOTUT==1.15.V5V, I,OIUOTUT==4400AA
2.3 V
0.8 V
16 mA
23 mA
105 mA
30 µA
14.7 A
5.66 A
IOUT(DC)
Output Continuous Current VIN = 12V, VOUT = 1.5V (Note 4)
Range
0 40 A
∆VOUT (Line)
VOUT
∆VOUT (Load)
VOUT
VOUT(AC)
∆VOUT(START)
tSTART
∆VOUTLS
tSETTLE
IOUTPK
Control Section
Line Regulation Accuracy
Load Regulation Accuracy
Output Ripple Voltage
Turn-On Overshoot
Turn-On Time
Peak Deviation for Dynamic
Load
Settling Time for Dynamic
Load Step
Output Current Limit
VOUT = 1.5V, VIN from 4.70V to 15V
IOUT = 0A
VOUT = 1.5V, IOUT = 0A to 40A, VIN = 12V (Note 4)
IOUT = 0A, COUT = 100µF × 3 Ceramic, 470µF × 3 POSCAP,
VIN = 12V, VOUT = 1.5V
COUT = 100µF × 4 Ceramic, 470µF × 3 POSCAP,
VOUT = 1.5V, IOUT = 0A, VIN = 12V, TRACK/SS = 0.1µF
NCOoULTo=ad1,0T0RµAFC×K3/SCSer=am0.i0c0, 14µ7F0,µVFIN×
3
=
POSCAP,
12V
Load: 0% to 50% to 0% of Full Load
COUT = 100µF × 4 Ceramic, 470µF × 3 POSCAP,
VIN = 12V, VOUT = 1.5V, CFF = 22pF
Load: 0% to 50%
COUT = 100µF × 4
to 0% of
Ceramic,
F4u7l0l µLFoa×d3, VPIONS=C5AVP,,
VIN = 12V, VOUT = 1.5V, CFF = 22pF
VVIINN
=
=
152VV, V, VOUOTUT==11.5.5VV
l
l
0.02 0.06
%/V
0.2 0.35
%
15 mVP-P
5 mV
50 ms
45 mV
25 µs
54 A
54 A
VFB
Voltage at VFB Pin
IOUT = 0A, VOUT = 1.5V
IFB
Current at VFB Pin
(Note 6)
VOVL
Feedback Overvoltage
Measure at VOUTS1
Lockout
l 0.594
l5
0.600
–30
7.5
0.606
–100
10
V
nA
%
ITRACK/SS
tON(MIN)
RFBHI
Track Pin Soft-Start Pull-Up
Current
Minimum On-Time
Resistor
VFB Pins
Between
VOUTS1
and
TRACK/SS = 0V, Default 750µs Turn on with TRACK/SS
Tied to INTVCC
(Note 3)
1.1 1.35 1.6
100
4.99
µA
ns
46361f
For more information www.linear.com/LTM4636-1
3







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