LTM4600IV#PBF Linear Technology, LTM4600IV#PBF Datasheet

IC DC/DC UMODULE 10A 104-LGA

LTM4600IV#PBF

Manufacturer Part Number
LTM4600IV#PBF
Description
IC DC/DC UMODULE 10A 104-LGA
Manufacturer
Linear Technology
Series
µModuler
Type
Point of Load (POL) Non-Isolatedr
Datasheet

Specifications of LTM4600IV#PBF

Design Resources
LTM4600 Spice Model
Output
0.6 ~ 5 V
Number Of Outputs
1
Power (watts)
50W
Mounting Type
Surface Mount
Voltage - Input
4.5 ~ 20V
Package / Case
104-LGA
1st Output
0.6 ~ 5 VDC @ 10A
Size / Dimension
0.59" L x 0.59" W x 0.11" H (15mm x 15mm x 2.8mm)
Power (watts) - Rated
50W
Operating Temperature
-40°C ~ 85°C
Efficiency
92%
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
3rd Output
-
2nd Output
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTM4600IV#PBFLTM4600IV
Manufacturer:
LTC
Quantity:
1 940
Company:
Part Number:
LTM4600IV#PBFLTM4600IV
Manufacturer:
LI
Quantity:
465
Company:
Part Number:
LTM4600IV#PBF
Manufacturer:
LT
Quantity:
650
Company:
Part Number:
LTM4600IV#PBF
Manufacturer:
LINEAR
Quantity:
60
Company:
Part Number:
LTM4600IV#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
FEATURES
APPLICATIONS
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
L, 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.
TYPICAL APPLICATION
Complete Switch Mode Power Supply
Wide Input Voltage Range: 4.5V to 20V
10A DC, 14A Peak Output Current
Parallel Two μModule™ DC/DC Converters for 20A
Output Current
0.6V to 5V Output Voltage
1.5% Output Voltage Regulation
Ultrafast Transient Response
Current Mode Control
Pb-Free (e4) RoHS Compliant Package with Gold-
Pad Finish
Up to 92% Effi ciency
Programmable Soft-Start
Output Overvoltage Protection
Optional Short-Circuit Shutdown Timer
Small Footprint, Low Profi le (15mm × 15mm ×
2.8mm) Surface Mount LGA Package
Telecom and Networking Equipment
Servers
Industrial Equipment
Point of Load Regulation
10A μModule Power Supply with 4.5V to 20V Input
4.5V TO 20V
V
IN
C
IN
V
PGND SGND
IN
LTM4600
V
V
OSET
OUT
C
OUT
66.5k
4600 TA01a
V
1.5V
10A
OUT
DESCRIPTION
The LTM
supply. Included in the package are the switching control-
ler, power FETs, inductor, and all support components.
Operating over an input voltage range of 4.5V to 20V, the
LTM4600 supports an output voltage range of 0.6V to 5V,
set by a single resistor. This high effi ciency design delivers
10A continuous current (14A 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 LTM4600 is packaged in a thermally enhanced, compact
(15mm × 15mm) and low profi le (2.8mm) over-molded
Land Grid Array (LGA) package suitable for automated
assembly by standard surface mount equipment. The
LTM4600 is Pb-free and RoHS compliant.
®
4600 is a complete 10A, DC/DC step down power
100
60
40
20
90
80
70
50
30
0
10A High Effi ciency
Effi ciency vs Load Current
DC/DC µModule
with 12V
2
LOAD CURRENT (A)
4
IN
(FCB = 0)
6
8
1.2V
1.5V
2.5V
3.3V
LTM4600
4600 TA01b
OUT
OUT
OUT
OUT
10
4600fc
1

Related parts for LTM4600IV#PBF

LTM4600IV#PBF Summary of contents

Page 1

... Industrial Equipment n Point of Load Regulation L, 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. TYPICAL APPLICATION 10A μ ...

Page 2

... ORDER INFORMATION LEAD FREE FINISH PART MARKING LTM4600EV#PBF LTM4600EV LTM4600IV#PBF LTM4600IV Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. Consult LTC Marketing for information on non-standard lead based fi nish parts. For more information on lead free part marking, go to: This product is only offered in trays ...

Page 3

ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T SYMBOL PARAMETER I Input Supply Current S(VIN) Output Specifi cations I Output Continuous Current Range OUTDC (See Output Current Derating Curves for Different and T IN OUT ...

Page 4

LTM4600 TYPICAL PERFORMANCE CHARACTERISTICS Effi ciency vs Load Current with 5V (FCB = 0) IN 100 0.6V OUT 1.2V OUT 40 1.5V OUT 2.5V OUT LOAD CURRENT (A) 4600 ...

Page 5

TYPICAL PERFORMANCE CHARACTERISTICS Start-Up OUT V OUT (0.5V/DIV (0.5A/DIV) 4600 G10 200μs/DIV V = 12V 1.5V OUT C = 200μF OUT NO EXTERNAL SOFT-START CAPACITOR Short-Circuit Protection 10A OUT V ...

Page 6

LTM4600 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. f (Pin A15): ...

Page 7

SIMPLIFIED BLOCK DIAGRAM RUN/SS PGOOD COMP FCB f ADJ SGND EXTV CC V OSET R6 66.5k DECOUPLING REQUIREMENTS SYMBOL PARAMETER C External Input Capacitor Requirement 4.5V to 20V OUT C External Output Capacitor Requirement OUT ...

Page 8

LTM4600 OPERATION μModule Description The LTM4600 is a standalone non-isolated synchronous switching DC/DC power supply. It can deliver up to 10A of DC output current with only bulk external input and output capacitors. This module provides a precisely regulated output ...

Page 9

APPLICATIONS INFORMATION The typical LTM4600 application circuit is shown in Figure 18. External component selection is primarily determined by the maximum load current and output voltage. Output Voltage Programming and Margining The PWM controller of the LTM4600 has an internal ...

Page 10

LTM4600 APPLICATIONS INFORMATION the module input pins in the PCB layout to minimize the trace inductance and high frequency AC noise. Output Capacitors The LTM4600 is designed for low output voltage ripple. The bulk output capacitors C is chosen with ...

Page 11

APPLICATIONS INFORMATION Table 2. Output Voltage Response Versus Component Matrix (Refer to Figure 18) TYPICAL MEASURED VALUES C VENDORS PART NUMBER OUT1 TDK C4532X5R0J107MZ (100μF ,6.3V) TAIYO YUDEN JMK432BJ107MU-T ( 100μF , 6.3V) TAIYO YUDEN JMK316BJ226ML-T501 ( 22μF , 6.3V) ...

Page 12

LTM4600 APPLICATIONS INFORMATION time to charge up the output capacitor, C short-circuit timer. After the RUN/SS pin charges above 4V, if the output voltage falls below 75% of its regulated value, then a short-circuit fault is assumed. A 1.8μA current ...

Page 13

... The new feedback equation for two or more LTM4600s in parallel is: = 0.6V • V OUT pin to the external 5V where N is the number of LTM4600s in parallel. OPTI-LOOP is a registered trademark of Linear Technology Corporation. CC LTM4600 grounded. Internal 5V LDO is always powered connected to an external supply. Internal LDO voltage can not be higher than CC ® ...

Page 14

LTM4600 APPLICATIONS INFORMATION OUT LTM4600 PGND COMP V SGND OSET R SET COMP V SGND OSET V LTM4600 V IN OUT PGND Figure 7. Parallel Two μModules with Load Sharing Thermal Considerations and Output Current ...

Page 15

APPLICATIONS INFORMATION 4 1.5V OUT 4.0 3.5 3.0 2.5 2.0 12V LOSS 1.5 5V LOSS 1.0 0 OUTPUT CURRENT (A) 4600 F08 Figure 8. Power Loss vs Load Current 10 V ...

Page 16

LTM4600 APPLICATIONS INFORMATION Layout Checklist/Example The high integration of the LTM4600 makes the PCB board layout very simple and easy. However, to optimize its electri- cal and thermal performance, some layout considerations are still necessary. • Use large PCB copper ...

Page 17

APPLICATIONS INFORMATION t ON (DC) DUTY CYCLE = FREQ = t t OFF ON 4600 F21 PERIOD t s Figure 17. LTM4600 Switching Period The LTM4600 has a minimum ( time of 100 nanosec- ...

Page 18

LTM4600 APPLICATIONS INFORMATION C3 10μF 25V RUN/SOFT-START WITH f C3 10μF 25V RUN/SOFT-START 12V WITH 3. 4. 30. 100pF 10μF ...

Page 19

TYPICAL APPLICATION (BULK 20V 150μF GND C3 100pF V OUT R1 66.5k REFER TO TABLE 1 Figure 18. Typical Application 20V Input, 0. Output, 10A Max C (CER) IN ...

Page 20

LTM4600 TYPICAL APPLICATION C8 C7 10μF 10μF 25V 25V RUN/SOFT-START C3 C1 10μF 10μF 25V 25V 20 Parallel Operation and Load Sharing 4.5V TO 20V V OUT WHERE ADJ EXTV V CC OUT FCB ...

Page 21

PACKAGE DESCRIPTION 6.9865 5.7142 4.4442 3.1742 1.9042 0.6342 0.0000 0.6358 1.9058 3.1758 4.4458 5.7158 6.9421 Z Z bbb 6.3500 5.0800 3.8100 2.5400 1.2700 0.3175 0.0000 0.3175 1.2700 2.5400 3.8100 5.0800 6.3500 LTM4600 4600fc 21 ...

Page 22

LTM4600 PACKAGE DESCRIPTION PIN NAME PIN NAME ...

Page 23

... N22 PGND 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 representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. Pin Assignment Tables (Arranged by Pin Number) ...

Page 24

... Pin Compatible with the LTM4600 Synchronizable, PolyPhase Operation, LTM4603-1 Version has no Remote Sensing, Pin Compatible with the LTM4601 This product contains technology licensed from Silicon Semiconductor Corporation. www.linear.com ● 22μF 470μ PGOOD ® LT 0807 REV C • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2006 4600fc ...

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