LTM4601AHVMPV#PBF Linear Technology, LTM4601AHVMPV#PBF Datasheet

IC DC/DC UMODULE 12A 133-LGA

LTM4601AHVMPV#PBF

Manufacturer Part Number
LTM4601AHVMPV#PBF
Description
IC DC/DC UMODULE 12A 133-LGA
Manufacturer
Linear Technology
Series
µModuler
Type
Point of Load (POL) Non-Isolatedr
Datasheet

Specifications of LTM4601AHVMPV#PBF

Design Resources
LTM4601AHV Spice Model
Output
0.6 ~ 5 V
Number Of Outputs
1
Power (watts)
60W
Mounting Type
Surface Mount
Voltage - Input
4.5 ~ 28 V
Package / Case
133-LGA
1st Output
0.6 ~ 5 VDC @ 12A
Size / Dimension
0.59" L x 0.59" W x 0.11" H (15mm x 15mm x 2.8mm)
Power (watts) - Rated
60W
Operating Temperature
-55°C ~ 125°C
Efficiency
95%
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
3rd Output
-
2nd Output
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTM4601AHVMPV#PBF
Manufacturer:
MSC
Quantity:
4 300
Company:
Part Number:
LTM4601AHVMPV#PBF
Manufacturer:
Linear Technology
Quantity:
135
FEATURES
APPLICATIONS
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n
n
n
n
n
n
n
n
n
n
n
n
n
n
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n
TYPICAL APPLICATION
4.5V TO 28V
Complete Switch Mode Power Supply
Wide Input Voltage Range: 4.5V to 28V
12A DC Typical, 14A Peak Output Current
0.6V to 5V Output Voltage
Output Voltage Tracking and Margining
Redundant Mounting Pads for Enhanced
Solder-Joint Strength
Parallel Multiple μModule
Current Sharing
Differential Remote Sensing for Precision Regulation
PLL Frequency Synchronization
±1.5% Total DC Error
Current Foldback Protection (Disabled at Start-Up)
Pb-Free (e4) RoHS Compliant Package with Gold
Finish Pads
–55°C to 125°C Operating Temperature Range
(LTM4601AHVMPV)
Ultrafast™ Transient Response
Up to 95% Effi ciency at 5V
Programmable Soft-Start
Output Overvoltage Protection
Enhanced (15mm × 15mm × 2.8mm) Surface Mount
LGA Package
Telecom, Industrial and Networking Equipment
Military and Avionics Systems
V
C
IN
IN
2.5V/12A Power Supply with 4.5V to 28V Input
5% MARGIN
ON/OFF
R1
392k
PGOOD
RUN
COMP
INTV
DRV
MPGM
CC
CC
SGND
V
IN
LTM4601AHV
PLLIN
PGND
IN
®
TRACK/SS
, 3.3V
Regulators for
f
V
SET
DIFFV
OUT_LCL
MARG0
MARG1
V
V
OSNS
OSNS
V
OUT
OUT
V
FB
OUT
+
CLOCK SYNC
TRACK/SS CONTROL
MARGIN
CONTROL
100pF
4601AHV TA01a
R
19.1k
SET
C
V
2.5V
12A
OUT
OUT
12A, 28V
DESCRIPTION
Regulator with PLL, Output
The LTM
mode DC/DC power supply with onboard switching con-
troller, MOSFETs, inductor and all support components.
The μModule regulator is housed in a small surface mount
15mm × 15mm × 2.8mm LGA package. The LTM4601AHV
LGA package is designed with redundant mounting pads
to enhance solder-joint strength for extended temperature
cycling endurance. Operating over an input voltage range
of 4.5 to 28V, the LTM4601AHV supports an output volt-
age range of 0.6V to 5V as well as output voltage tracking
and margining. The high effi ciency design delivers 12A
continuous current (14A peak). Only bulk input and output
capacitors are needed to complete the design.
The low profi le (2.8mm) and light weight (1.7g) pack-
age easily mounts in unused space on the back side of
PC boards for high density point of load regulation. The
μModule regulator can be synchronized with an external
clock for reducing undesirable frequency harmonics and
allows PolyPhase
An onboard differential remote sense amplifi er can be
used to accurately regulate an output voltage independent
of load current.
L, LT, LTC and LTM, Linear Technology, the Linear logo, μModule and PolyPhase are
registered trademarks and Ultrafast is a trademark 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.
Tracking and Margining
®
4601AHV is a complete 12A step-down switch
95
90
85
80
75
70
65
60
55
50
45
0
IN
Effi ciency and Power Loss
®
EFFICIENCY
2
operation for high load currents.
DC/DC µModule
vs Load Current
POWER LOSS
4
LOAD CURRENT (A)
6
12V
24V
24V
IN
IN
IN
LTM4601AHV
8
12V
IN
10
4601AHV TA01b
12
14
6
5
4
3
2
1
0
4601ahvfa
1

Related parts for LTM4601AHVMPV#PBF

LTM4601AHVMPV#PBF Summary of contents

Page 1

... L, LT, LTC and LTM, Linear Technology, the Linear logo, μModule and PolyPhase are registered trademarks and Ultrafast is a trademark 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 ...

Page 2

... LTM4601AHVEV#PBF LTM4601AHVV LTM4601AHVIV#PBF LTM4601AHVV LTM4601AHVMPV#PBF LTM4601AHVMPV Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi label on the shipping container. For more information on lead free part marking, go to: This product is only offered in trays. For more information go to: ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi ...

Page 3

ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are 40.2k. SET SYMBOL PARAMETER I Input Supply Current S(VIN) INTV V = 12V, RUN > Output Specifi cations I Output Continuous Current Range OUTDC ΔV ...

Page 4

LTM4601AHV ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are 40.2k. SET SYMBOL PARAMETER Control Stage V Error Amplifi er Input Voltage FB Accuracy V RUN Pin On/Off Threshold RUN I Soft-Start Charging Current SS/TRACK t Minimum ...

Page 5

TYPICAL PERFORMANCE CHARACTERISTICS Effi ciency vs Load Current with 5V IN 100 0.6V OUT 70 1.2V OUT 1.5V OUT 65 2.5V OUT 3.3V OUT LOAD CURRENT (A) 4601AHV G01 1.2V Transient ...

Page 6

LTM4601AHV TYPICAL PERFORMANCE CHARACTERISTICS Start-Up –55° LOAD 10A LOAD 10ms/DIV 4601AHV G16 V = 12V 1.5V OUT C = 470μ 22μF OUT SOFT-START = 10nF Step-Down Ratio IN ...

Page 7

PIN FUNCTIONS (See Package Description for Pin Assignment) V (Bank 1): Power Input Pins. Apply input voltage be- IN tween these pins and PGND pins. Recommend placing input decoupling capacitance directly between V and PGND pins. V (Bank 3): Power ...

Page 8

LTM4601AHV PIN FUNCTIONS (See Package Description for Pin Assignment) SGND (Pins H12, H11, G11): Signal Ground. These pins connect to PGND at output capacitor point. See Figure 17. COMP (Pin A11): Current Control Threshold and Error Amplifi er Compensation Point. ...

Page 9

DECOUPLING REQUIREMENTS SYMBOL PARAMETER C External Input Capacitor Requirement 4.5V to 28V OUT C External Output Capacitor Requirement OUT (V = 4.5V to 28V OUT OPERATION Power Module Description The LTM4601AHV is a ...

Page 10

LTM4601AHV APPLICATIONS INFORMATION The typical LTM4601AHV application circuits are shown in Figures 19 and 20. External component selection is primar- ily determined by the maximum load current and output voltage. Refer to Table 2 for specifi c external capacitor requirements ...

Page 11

APPLICATIONS INFORMATION For a buck converter, the switching duty-cycle can be estimated as: V OUT Without considering the inductor current ripple, the RMS current of the input capacitor can be estimated as: I OUT(MAX ...

Page 12

LTM4601AHV APPLICATIONS INFORMATION Multiphase operation with multiple LTM4601AHV devices in parallel will lower the effective output ripple current due to the interleaving operation of the regulators. For example, each LTM4601AHV’s inductor current of a 12V to 2.5V multiphase design can ...

Page 13

... L OUT f is frequency and m is the number of parallel phases. This calculation process can be easily fulfi lled using our Excel tool (Refer to the Linear Technology μModule Power Design Tool). Fault Conditions: Current Limit and Overcurrent Foldback LTM4601AHV has a current mode controller, which inher- ently limits the cycle-by-cycle inductor current not only in steady-state operation, but also in transient ...

Page 14

LTM4601AHV APPLICATIONS INFORMATION Run Enable The RUN pin is used to enable the power module. The pin has an internal 5.1V Zener to ground. The pin can be driven with a logic input not to exceed 5V. The RUN pin ...

Page 15

APPLICATIONS INFORMATION 5.0 4.5 4.0 24V IN 3.5 3.0 12V IN 2.5 2.0 1 1.0 0 OUTPUT CURRENT (A) Figure 7. 1.5V Output Power Loss ...

Page 16

LTM4601AHV APPLICATIONS INFORMATION 12V , 3.3V 0LFM 2 IN OUT 12V , 3.3V 200LFM IN OUT 12V , 3.3V 400LFM IN OUT AMBIENT TEMPERATURE (°C) Figure 13. 12V , 3.3V , ...

Page 17

APPLICATIONS INFORMATION Table 2. Output Voltage Response Versus Component Matrix* (Refer to Figures 19 and 20 Load Step TYPICAL MEASURED VALUES C VENDORS PART NUMBER OUT1 TDK C4532X5R0J107MZ (100μF ,6.3V) TAIYO YUDEN JMK432BJ107MU-T ( 100μF , 6.3V) ...

Page 18

LTM4601AHV APPLICATIONS INFORMATION Table 3. 1.5V Output at 12A DERATING CURVE V (V) IN Figures 9, 11 12, 24 Figures 9, 11 12, 24 Figures 9, 11 12, 24 Figures 10, 12 ...

Page 19

APPLICATIONS INFORMATION the thermal models and the derating curves. Tables 3 and 4 provide a summary of the equivalent θ conditions. These equivalent θ parameters are correlated JA to the measured values, and are improved with air fl ow. The ...

Page 20

LTM4601AHV APPLICATIONS INFORMATION Frequency Adjustment The LTM4601AHV is designed to typically operate at 850kHz across most input conditions. The f open or decoupled with an optional 1000pF capacitor. The switching frequency has been optimized for maintaining constant output ripple noise ...

Page 21

APPLICATIONS INFORMATION Solution Lower the switching frequency at lower input voltages to allow for higher duty cycles, and meet the 400ns mini- mum off-time at 4.5V input voltage. The off-time should be about 500ns with 100ns guard band. The duty ...

Page 22

LTM4601AHV APPLICATIONS INFORMATION 4.5V TO 16V R2 100k PGOOD C2 10μF 25V 3x V OUT V IN 22V TO 28V R2 100k 100k PGOOD + C IN BULK C OPT IN 10μF 35V 3x CER 5% MARGIN ...

Page 23

APPLICATIONS INFORMATION 28V + C1 0.1μF LTC6908 118k V OUT1 GND OUT2 3 4 SET MOD 2-PHASE OSCILLATOR C8 10μF 35V 2x *C5 OPTIONAL TO REDUCE ANY LC RINGING. NOT ...

Page 24

LTM4601AHV TYPICAL APPLICATIONS 24 4601ahvfa ...

Page 25

TYPICAL APPLICATIONS LTM4601AHV 4601ahvfa 25 ...

Page 26

LTM4601AHV PACKAGE DESCRIPTION bbb 6.9850 5.7150 4.4450 3.1750 1.9050 0.6350 0.0000 0.6350 1.9050 3.1750 4.4450 5.7150 6.9850 4601ahvfa ...

Page 27

PACKAGE DESCRIPTION PIN NAME INTV PLLIN B8 A9 TRACK/SS B9 A10 RUN ...

Page 28

LTM4601AHV PACKAGE DESCRIPTION PIN NAME PIN NAME ...

Page 29

... Edited various text in the Applications Information section. Updated Figures 7 and 8. Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. LTM4601AHV ...

Page 30

... LGA Package This product contains technology licensed from Silicon Semiconductor Corporation. ● www.linear.com ≤ 5V, OUT ≤ 5V; OUT ≤ 5V, OUT ≤ 5V, OUT ≤ 10V, Pin Compatible, OUT ® 4601ahvfa LT 1210 REV A • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2008 ...

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