Linear Technology LTM4630EY-1 Guida rapida alla configurazione

dc2081a-bfa

DEMO MANUAL DC2081A-B

Description

LTM4630EY-1

Dual 18A or Single 36A μModule

Regulator with ±0.8% DC and

±3% Transient Accuracy

Demonstrationcircuit 2081A-B featurestheLT M

4630EY-1,

the high efficiency, high density, dual 18A, switch mode

step-down μModule

regulator with ±0.8% total DC output

accuracy. The input voltage is from 4.5V to 15V. The output

voltage is programmable from 0.6V to 1.8V. DC2081A-B is

configuredasdual-phase,single-output,whichcandeliver

up to 36A maximum. With the help of external compensa-

tion, ±3% transient accuracy can be achieved with 25%

load step. The board designs with minimum components

to demonstrate this high efficiency, high density μModule.

As explained in the data sheet, output current de-rating is L, LT, LTC, LTM, Linear Technology, the Linear logo and μModule are registered trademarks of

Linear Technology Corporation. All other trademarks are the property of their respective owners.

performance summary

necessary for certain VIN, VOUT, and thermal conditions.

These features and the availability of the LTM4630EY-1

in a compact 16mm × 16mm × 5.01mm BGA package

make it ideal for use in many high-density point-of-load

applications. The LTM4630-1 data sheet must be read

in conjunction with this demo manual for working on or

modifying the demo circuit DC2081A-B.

Design files for this circuit board are available at

http://www.linear.com/demo/DC2081A-B

Specifications are at TA= 25°C

PARAMETER CONDITIONS VALUE

Input Voltage Range 4.5V ~ 15V

Output Voltage VOUT VIN = 4.5 ~ 15V, IOUT = 0 ~ 36A (for LTM4630-1A) 1.0V ± 0.8% (0.992V ~ 1.008V)

Maximum Continuous Output Current De-rating is Necessary for Certain VIN, VOUT and

Thermal Conditions, See Data Sheet for Detail

36A

Default Operating Frequency 400kHz

Efficiency VIN = 5V, VOUT = 1.0V, IOUT = 36A, fSW = 400kHz 85.7%, See Figure 2

Load Transient VIN = 12V, VOUT = 1.0V, ISTEP = 0 ~ 9A < 56.3mVP-P, See Figure 3

dc2081a-bfa

DEMO MANUAL DC2081A-B

Dc2081a-B BoarD photo

Demonstration circuit DC2081A-B is easy to set up to

evaluate the performance of the LTM4630-1. Please refer

to Figure 1 for proper measurement setup and follow the

procedure below:

1. With power off, connect the input power supply, load

and meters as shown in Figure 1. Preset the load to 0A

and VIN supply to 12V.

2. Turn on the power supply at the input. The output volt-

age should be 1.0V ± 0.8% (0.992V ~ 1.008V).

Quick start proceDure

3. Oncethe proper output voltage is established, adjust the

load within the operating range and observe the output

voltage regulation, output voltage ripple, efficiency and

other parameters. Output ripple can be measured at J6

with BNC cables.

4. (Optional) For optional load transient test, apply an ad-

justable pulse signal between “IOSTEP CLK” and “GND”

test point. Pulse amplitude (3V~ 3.5V) sets the load

stepcurrentamplitude. The output transient current can

be monitored at the BNC connector J5 (15mV/A). The

pulse signal should have very small duty cycle (<10%)

to limit the thermal stress on the transient load circuit.

dc2081a-bfa

DEMO MANUAL DC2081A-B

Figure 1. Test Setup of DC2081A-B

Quick start proceDure

Load (0-36A)

VOUT

VIN

-1A

dc2081a-bfa

DEMO MANUAL DC2081A-B

Figure 2. Measured LTM4630-1 Efficiency (VOUT = 1.0V, fsw = 400kHz)

Quick start proceDure

Figure 3. Measured LTM4630-1 0A – 9A Load Transient (VIN=12V, VOUT = 1.0V, fsw = 400kHz)

LOAD CURRENT (A)

EFFICIENCY (%)

65 8 12 16 20 24 28 32

2081A F02

364

5VIN

12VIN

0A TO 9A

LOAD STEP

1.0VOUT

(20MHz BW)

20mV/DIV

dc2081a-bfa

DEMO MANUAL DC2081A-B

Quick start proceDure

Figure 4. LTM4630-1 Thermal Capture (VIN=12V, VOUT = 1.0V/36A, fsw=400kHz, TA= 25°C, No Airflow and No Heat Sink)

dc2081a-bfa

DEMO MANUAL DC2081A-B

Dc2081a-B parts List

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

Required Circuit Components

1 1 CIN1 CAP., ALUM., 150μF, 25V, 20% SUN ELECT., 25CE150AX

2 4 CIN2, CIN3, CIN4, CIN5 CAP., CER., 22μF, X5R, 25V, 10%, 1210 MURATA, GRM32ER61E226KE15L

3 5 COUT3, COUT5, COUT7, COUT12,

COUT14

CAP., CER., 220μF, X5R, 4V, 20%, 1206 MURATA, GRM31CR60G227ME11L

4 1 C1 CAP., CER., X7R, 47pF, 25V, 10%, 0603 AVX, 06033C470KAT2A

5 1 C4 CAP., CER., 2.2μF, X5R, 10V, 10% 0603 MURATA, GRM188R61A225KE34D

6 1 C5 CAP., C0G, 3300pF, 50V, 5%, 0603 MURATA, GRM1885C1H332JA01D

7 1 C7 CAP., CER., 0.1μF, X5R, 25V, 10% 0603 AVX, 06033D104KAT2A

8 3 C8, C9, C10 CAP., CER., 1μF, X7R, 10V, 10%, 0603 AVX, 0603ZC105KAT2A

9 1 Q1 XSTR., SUD50N04-8M8P-4GE3 MOSFET VISHAY, SUD50N04-8M8P-4GE3

10 2 R1, R3 RES., 10Ω, 1/10W, 1%, 0603 VISHAY, CRCW060310R0FKEA

11 1 R2 RES., 121k, 1/10W, 1%, 0603 VISHAY, CRCW0603121KFKEA

12 2 R4, R18 RES., 10k, 1/10W, 1%, 0603 VISHAY, CRCW060310K0FKEA

13 1 R9 RES., 100k, 1/10W, 1%, 0603 VISHAY, CRCW0603100KFKEA

14 1 R11 RES., 1k, 1/10W, 1%, 0603 VISHAY, CRCW06031K00FKEA

15 1 R13 RES., CHIP, 4.02k, 1%, 0603 VISHAY, CRCW06034K02FKEA

16 1 R16 RES., SENSE, 0.015Ω, 1W, 2512 VISHAY, WSL2512R0150FEA

17 1 R19 RES., 90.9k, 1/10W, 1%, 0603 VISHAY, CRCW060390K9FKEA

18 1 U1 LTM4630EY-1#PBF, 16X16X4.41-LGA LINEAR TECH., LTM4630EY-1A#PBF

Additional Demo Board Circuit Components

1 0 COUT2, COUT4, COUT6, COUT8 OPT., SANYO-D4D OPT.

2 0 COUT9, COUT10 OPT., SANYO-D4D OPT.

3 0 COUT1, COUT11, COUT13 OPT. 1210 OPT.

4 0 C3 OPT.OPT.

5 0 R8, R10 OPT 0603 OPT

6 2 R12, R14 RES., 0Ω, 1/10W, 0603 VISHAY, CRCW06030000Z0EA

Hardware

1 9 E1-E7, E17, E18 TEST POINT, TURRET, .094" MTG. HOLE MILL-MAX, 2501-2-00-80-00-00-07-0

2 0 E8-E14 (OPT) TESTPAD SMD TESTPAD SMD

3 2 J1, J3 JACK, BANANA KEYSTONE, 575-4

4 2 J2, J4 STUD, TESTPIN PEM KFH-032-10

5 4 J2, J4 (X2) NUT, BRASS 10-32 ANY #10-32

6 2 J2, J4 RING, LUG #10 KEYSTONE #10

7 2 J2, J4 WASHER, TIN PLATED BRASS ANY #10

8 2 J5, J6 CONN., BNC, 5 PINS CONNEX, 112404

9 4 (STAND-OFF) STANDOFF, NYLON, SNAP-ON, .500" TALL KEYSTONE, 8833

dc2081a-bfa

DEMO MANUAL DC2081A-B

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.

Dc2081a-B schematic Diagram

D D

C C

B B

A A

36A

NOTE: UNLESS OTHERWISE SPECIFIED

1. ALL RESISTORS ARE IN OHMS, 0603.

ALL CAPACITORS ARE IN MICROFARADS, 0603.

DYNAMIC LOAD CIRCUIT

VOUT

4.5V - 15V

PGOOD

RUN

TRACK

VFB

PGOOD

COMP

RUN

TRACK

DIFFP

DIFFN

VFB

COMP

VIN

INTVCC

VOUT

VO+

VO-

VO+

INTVCC

VO+ VO-

VOUT

VIN

VOUT

REVISION HISTORY

DESCRIPTION DATE

APPROVED

ECO REV

PRODUCTION

1 HAORAN W 10-22-14

REVISION HISTORY

DESCRIPTION DATE

APPROVED

ECO REV

PRODUCTION

1 HAORAN W 10-22-14

REVISION HISTORY

DESCRIPTION DATE

APPROVED

ECO REV

PRODUCTION

1 HAORAN W 10-22-14

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

DEMO CIRCUIT DC2081A-B

Wednesday, October 22, 2014

HIGH EFFICIENCY, DUAL PHASE, SINGLE OUTPUT

N/A

LTM4630EV / LTM4630EY-1

HAORAN W.

STEP-DOWN POWER MODULE REGULATOR

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

DEMO CIRCUIT DC2081A-B

Wednesday, October 22, 2014

HIGH EFFICIENCY, DUAL PHASE, SINGLE OUTPUT

N/A

LTM4630EV / LTM4630EY-1

HAORAN W.

STEP-DOWN POWER MODULE REGULATOR

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

DEMO CIRCUIT DC2081A-B

Wednesday, October 22, 2014

HIGH EFFICIENCY, DUAL PHASE, SINGLE OUTPUT

N/A

LTM4630EV / LTM4630EY-1

HAORAN W.

STEP-DOWN POWER MODULE REGULATOR

3.3nF

COUT5

220uF

1206

COUT5

220uF

1206

R10

(OPT)

R10

(OPT)

J5 IOSTEP

R12

0 Ohm

R12

0 Ohm

1uF

CIN4

22uF

25V

1210

CIN4

22uF

25V

1210

CLKIN

COUT4

(OPT)

COUT4

(OPT)

COUT8

(OPT)

COUT8

(OPT)

R11

47pF

R18

10K

R18

10K

0.1uF

CIN5

22uF

25V

1210

CIN5

22uF

25V

1210

COUT6

(OPT)

COUT6

(OPT)

10K

COUT2

(OPT)

COUT2

(OPT)

E18

GND

E18

GND

2.2uF

10V

2.2uF

10V

R19

90.9K

R19

90.9K

CIN1

150uF

25V

CIN1

150uF

25V

121K

TEMP

COUT11

(OPT)

COUT11

(OPT)

100K

E11

EXTVCC

E11

EXTVCC

VIN-

VO-

GND

RUN

COUT3

220uF

1206

COUT3

220uF

1206

VO+

1uF

COUT9

(OPT)

COUT9

(OPT)

VIN

SUD50N04-8M8P

SGND

E12

PHASMD

E12

PHASMD

R13

4.02K

R13

4.02K

COUT10

(OPT)

COUT10

(OPT)

0.6 - 1.8V

VOUT

0.6 - 1.8V

VOUT

E14

SW2

E14

SW2

R16

0.015

2512

R16

0.015

2512

E13 SW1

E17

IOSTEP CLK

E17

IOSTEP CLK

COUT14

220uF

1206

COUT14

220uF

1206

J6J6

LTM4630EY-1

VOUT1

VFB1

SW1

PGOOD1

COMP1

RUN1

TRACK1

VOUTS1

VOUT2

A10

VOUT2

A11

VOUT2

A12

VOUT2

B10

VOUT2

B11

VOUT2

B12

VOUT2

C10

VOUT2

C11

VOUT2

C12

VFB2

SW2

G11

PGOOD2

COMP2

RUN2

TRACK2

VOUTS2

VIN

M10

VIN

M11

VIN

L10

VIN

L11

VIN

K10

VIN

K11

VIN

J10

VIN

J11

GND

D10

GND

D11

GND

D12

GND

E10

GND

E11

GND

E12

GND

F10

GND

F11

GND

F12

GND

G10

GND

G12

GND

H10

GND

H11

GND

H12

GND

M12

GND

L12

GND

J12

GND

K12

GND

SGND

FSET

PHASMD

DIFFP

DIFFN

CLKOUT

MODE-PLLIN

TEMP

INTVCC

EXTVCC

DIFFOUT

VIN+

COUT12

220uF

1206

COUT12

220uF

1206

4V J4

GND

R14

0 Ohm

0603

R14

0 Ohm

0603

COUT7

220uF

1206

COUT7

220uF

1206

PGOOD

(OPT)

E10

CLKOUT

E10

CLKOUT

COUT13

(OPT)

COUT13

(OPT)

C10

1uF

C10

1uF

COUT1

(OPT)

COUT1

(OPT)

CIN3

22uF

25V

1210

CIN3

22uF

25V

1210

CIN2

22uF

25V

1210

CIN2

22uF

25V

1210

dc2081a-bfa

DEMO MANUAL DC2081A-B

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

LINEAR TECHNOLOGY CORPORATION 2015

LT 0715 REV A • PRINTED IN USA

DEMONSTRATION BOARD IMPORTANT NOTICE

Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions:

This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT

OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete

in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety

measures typically found in finished commercial goods. As a prototype, this product does not fall within the scope of the European Union

directive on electromagnetic compatibility and therefore may or may not meet the technical requirements of the directive, or other regulations.

If this evaluation kit does not meet the specifications recited in the DEMO BOARD manual the kit may be returned within 30 days from the date

of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO BUYER AND IS IN LIEU

OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS

FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THIS INDEMNITY, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR

ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.

The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user releases LTC from all claims

arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all

appropriate precautions with regard to electrostatic discharge. Also be aware that the products herein may not be regulatory compliant or

agency certified (FCC, UL, CE, etc.).

No License is granted under any patent right or other intellectual property whatsoever. LTC assumes no liability for applications assistance,

customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind.

LTC currently services a variety of customers for products around the world, and therefore this transaction is not exclusive.

Please read the DEMO BOARD manual prior to handling the product. Persons handling this product must have electronics training and

observe good laboratory practice standards. Common sense is encouraged.

This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact a LTC application

engineer.

Mailing Address:

Linear Technology

1630 McCarthy Blvd.

Milpitas, CA 95035

Mouser Electronics

Authorized Distributor

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DC2081A-B

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