uModule Regulator. LTM4636 Datasheet

LTM4636 Regulator. Datasheet pdf. Equivalent

LTM4636 Datasheet
Recommendation LTM4636 Datasheet
Part LTM4636
Description 40A uModule Regulator
Feature LTM4636; Features n Stacked Inductor Acts as Heat Sink n Wide Input Voltage Range: 4.7V to 15V n 0.6V to 3.
Manufacture Linear Technology
Datasheet
Download LTM4636 Datasheet




Linear Technology LTM4636
Features
n Stacked Inductor Acts as Heat Sink
n Wide Input Voltage Range: 4.7V to 15V
n 0.6V to 3.3V Output Voltage Range
n ±1.3% Total DC Output Voltage Error Over Line,
Load and Temperature (–40°C to 125°C)
n Differential Remote Sense Amplifier for Precision
Regulation
n Current Mode Control/Fast Transient Response
n Frequency Synchronization
n Parallel Current Sharing (Up to 240A)
n Internal or External Compensation
n 88% Efficiency (12VIN, 1VOUT) at 40A
n Overcurrent Foldback Protection
n 16mm × 16mm × 7.07mm BGA Package
Applications
n Telecom Servers and Networking Equipment
n Industrial Equipment and Medical Systems
LTM4636
40A µModule Regulator
with Enhanced Efficiency
and Thermal Performance
Description
The LTM®4636 is a 40A µModule® (micromodule) step-
down regulator. It contains a switching controller plus
power MOSFETs, inductor and components supporting
internal and external compensation. Its stacked inductor
construction and high performance electrical design allow
for a 12VIN to 1VOUT conversion at 40A with 88% efficiency,
resulting in only 40°C rise with 200LFM airflow and no
power derating up to 85°C. The device operates from a
4.7V to 15V input supply and regulates an output from
0.6V to 3.3V set by an external resistor.
Current mode operation allows precise current sharing
of up to six LTM4636 regulators to obtain a 240A output.
The LTM4636 is offered in a thermally enhanced 16mm
× 16mm × 7.07mm BGA package. The LTM4636 is RoHS
compliant.
L, LT, LTC, LTM, PolyPhase, Burst Mode, µModule, Linear Technology, the Linear logo are
registered trademarks and Hot Swap 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
4.70V TO
15V
+
VIN ≤ 5.5V, TIE VIN, INTVCC AND PVCC
TOGETHER, TIE RUNP TO GND.
VIN > 5.5V, THEN OPERATE AS SHOWN
100µF
25V
22µF
16V
×5
PVCC
15k
0.1µF
INTVCC
VIN INTVCC PVCC
RUNC
LTM4636
PVCC
INTVCC
34.8k
PINS NOT USED IN THIS CIRCUIT:
CLKOUT, GMON, PGOOD, PHMODE, PWM,
SW, TEST1, TEST2, TEST3, TEST4, TMON
RUNP
HIZREG
FREQ
TRACK/SS
MODE/PLLIN
SNSP1
SNSP2
COMPA
COMPB
TEMP+ TEMP
VOUT
VOUTS1
VOUTS1–
VFB
SGND PGND
OPTIONAL TEMP MONITOR
22µF
1V
+ 470µF
6.3V
×3
7.5k
4636 TA01a
VOUT
1V, 40A
100µF
6.3V
×4
12VvINs O, u1tVpOuUtTCEufrfriecinetncy
100
95
90
85
80
75
70
0
5 10 15 20 25 30 35 40
OUTPUT CURRENT (A)
4636 TA01b
For more information www.linear.com/LTM4636
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Linear Technology LTM4636
LTM4636
Absolute Maximum Ratings
(Note 1)
VIN, SW, HZBREG, RUNP............................ –0.3V to 16V
VOUT........................................................... –0.3V to 3.5V
FPRGEOQO,DT,RRAUCNKC/,STSM, TOENS,TP1V, TCCE,SMT2O,DVEO/SPNLSLI,NV, OPUHTMS1O, DE,
SNSP1, SNSP2, TEST3, TEST4...... –0.3V to INTVCC (5V)
VFB, COMPA, COMPB (Note 7)................... –0.3V to 2.7V
PVCC Additional Output Current................. 0mA to 50mA
Note: PWM, CLKOUT, and GMON are outputs only.
TEMP+, TEMP........................................... –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
Pin Configuration
TOP VIEW
VOSNS– 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
NC
TEST1
PWM TMON
GND
TEST4 (FLOAT PIN)
PHASMD
RUNP
PVCC
TTEEMMPP+–
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#orderinfo
LEAD FREE FINISH
TRAY
PART MARKING* PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTM4636EY#PBF
LTM4636EY#PBF
LTM4636
144-Lead (16mm × 16mm × 7.07mm) BGA –40°C to 125°C
LTM4636IY#PBF
LTM4636IY#PBF
LTM4636
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/
4636f
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Linear Technology LTM4636
LTM4636
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
Input DC Voltage
VtoING≤ND5.5V, Tie VIN, INTVCC and PVCC Together, Tie RUNP l 4.7
15 V
VOUT
VOUT Range
VOUT(DC)
DC Output Voltage, Total
Variation with Line and Load
RCVCIOIFNNBU==T==2442.017µ.052F0Vkµ×,tFoM5×1O54DVEC,_eIPrOaLUmLT Ii=Nc,0=4A7Gt0oNµD4F 0PAO(SNCoAteP
×3
4)
Input Specifications
l 0.6
3.3
l 1.4805 1.5 1.5195
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 Input Threshold VIN = 12V, RUNC = 5V, RUNP = VIN, VOUT = 1.5V
2.3 V
HIZREG HYS
HIZREG Hysteresis
VIN = 12V, RUNC = 5V, RUNP = VIN, VOUT = 1.5V
0.8 V
IQ(VIN)
Input Supply Bias Current
VVVSIIIhNNNu===td111o222wVVVn,,,,
VVVROOOUUUUNTTT
=
=
=
=
1110...,555VVVVI,,,NPBS=uuw1lrisst2ectV-hMSinkogidpeCpoiOnngpteiMnruaotoidouens,,,IIIOOOUUUTTT===000...111AAA
16
23
105
30
mA
mA
mA
µA
IS(VIN)
Input Supply Current
VVIINN
=
=
51V2V, V, VOUOTUT==11.5.5VV, ,IOIUOTUT==4400AA
14.7 A
5.66 A
Output Specifications
IOUT(DC)
Output Continuous Current
Range
VIN = 12V, VOUT = 1.5V (Note 4)
0 40 A
∆VOVUOTU(TLine)
∆VOVUOTU(TLoad)
VOUT(AC)
∆VOUT(START)
tSTART
∆VOUTLS
tSETTLE
IOUTPK
Control Section
Line Regulation Accuracy
Load Regulation Accuracy
VIOOUUTT==01A.5V, VIN from 4.75V to 15V
VOUT = 1.5V, IOUT = 0A to 40A, VIN = 12V (Note 4)
Output Ripple Voltage
Turn-On Overshoot
Turn-On Time
Peak Deviation for Dynamic
Load
Settling Time for Dynamic
Load Step
Output Current Limit
IVOIUNT==102AV,,
CVOOUUTT
=
=
100µF
1.5V
×
3
Ceramic,
470µF
×
3
POSCAP,
VCOOUUTT
=
=
100µF × 4
1.5V, IOUT
Ceramic,
= 0A, VIN
470µF
= 12V,
× 3 POSCAP,
TRACK/SS =
0.1µF
NCOoULTo=ad1,0T0RµAF C×K3/SCSer=am0.0ic0, 14µ7F0,µVFIN×=31P2OVSCAP,
Load: 0% to 50% to 0% of Full Load
VCOINU=T
= 100µF ×
12V, VOUT
4
=
Ceramic, 470µF ×
1.5V, CFF = 22pF
3
POSCAP,
Load: 0% to 50%
VCOINU=T
= 100µF ×
12V, VOUT
4
=
to 0% of
Ceramic,
F4u7l0l µLFoa×d,3VPINOS=C5AVP,,
1.5V, CFF = 22pF
VVIINN
=
=
152VV, V, VOUOTUT==1.15.V5V
l
l
0.02 0.06
0.2 0.35
15
5
50
45
%/V
%
mVP-P
mV
ms
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
Lockout
Measure at VOUTS1
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 Between
and VFB Pins
VOUTS1
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
For more information www.linear.com/LTM4636
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