LTM4644EY LINER | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 6

Technical content

Description

µModule Regulator Demonstration circuit 1900A features the LT M®4644EY µModule® regulator, a high-performance high-efficiency quad output step-down regulator. The LTM4644EY has an operating input voltage range of 4V to 14V and is able to provide up to 4A of output current from each of its phases. Each output’s voltage is programmable from 0.6V to 5.5V. The LTM4644EY is a DC/DC point of load regulator in a 9mm × 15mm × 5.01mm BGA package requiring only a L, L T , L TC, L TM, 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 BoarD photo few input and output capacitors. Output voltage tracking is available through the TRACK/SS pin for supply rail se- quencing. External clock synchronization is also available through the CLKIN pin. The LTM4644 data sheet must be read in conjunction with this demo manual prior to working on or modifying demo circuit 1900A. Design files for this circuit board are available at http://www.linear.com/demo/DC1900A Specifications are at TA = 25°C PARAMETER CONDITIONS VALUE Input Voltage Range 4V to 14V Output Voltage VOUT Jumper Selectable VOUT1 = 3.3VDC, VOUT2 = 2.5VDC, VOUT3 = 1.5VDC, VOUT4 = 1.2VDC Maximum Continuous Load Current per Output De-rating is necessary for certain operating conditions. See data sheet for details 4ADC Default Operating Frequency 1MHz Efficiency VIN = 12V, VOUT1 = 3.3V, IOUT = 4A 89% See Figure 2

for test setup connections and follow the procedure below.

  1. With power off, place the jumpers in the following
  2. Before connecting input supply, loads and meters,

14V. Preset the load currents to 0A.

  1. With power off, connect the loads, input voltage supply

and meters as shown in Figure 1.

  1. Turn on input power supply. The output voltage meters
  2. Once the proper output voltage is established, adjust
  3. To observe increased light load efficiency place a Mode

pin jumper (JP5-JP8) in the DCM Mode position. Figure 1. Test Setup of DC1900A

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER Required Circuit Components 1 2 C1, C3 CAP, 1206, CER. 22µF 25V X5R 20% MURATA, GRM31CR61E226KE15L 2 1 C6 CAP, 0603, X5R, 1uF, 16V 10% AVX, 0603YD105KAT2A 3 4 C9, C17, C28, C36 CAP, 1210 CER. 47µF 6.3V AVX, 12106D476MAT2A 4 4 C10, C16, C29, C35 CAP, 1206, X5R, 47uF, 6.3V, 20% TAIYO YUDEN, JMK316BJ476ML 5 1 R3 RES, 0603, 13.3kΩ 1% 1/10W VISHAY CRCW060313K3FKEA 6 1 R4 RES, 0603, 40.2kΩ 1% 1/10W VISHAY CRCW060340K2FKEA 7 2 R11 RES, 0603, 19.1kΩ 1% 1/10W VISHAY CRCW060319K1FKEA 8 1 R12 RES, 0603, 60.4kΩ 1% 1/10W VISHAY CRCW060360K4FKEA 9 1 U1 LTM4644EY, BGA-15X9-5.01 LINEAR TECH.CORP. LTM4644EY Additional Demo Board Circuit Components 1 2 C4, C5 CAP, 1206, CER. 22µF 25V X5R 20% MURATA, GRM31CR61E226KE15L 2 1 C2 CAP, 7343, POSCAP 68µF 16V SANYO, 16TQC68MYF 3 6 C7, C21, C22, C31, C41, C42 CAP, 0603, OPTION OPTION 4 4 C8, C18, C27, C37 CAP, 7343, POSCAP, OPTION OPTION 5 8 C11, C12, C14, C15, C30, C38, C33, C34 CAP, 1206, CER., OPTION OPTION 6 2 C13, C32 CAP, 0603, CER., 100PF AVX 06033C101KAT2A 7 4 R7, R8, R15, R16 RES, 0603, 0Ω 1% 1/10W VISHAY, CRCW06030000Z0ED 8 1 R28 RES, 0805, 0Ω 5% 1/16W VISHAY, CRCW08050000Z0EA 9 4 R19, R20, R21, R22 RES, 0603, 150kΩ 5% 1/10W VISHAY CRCW0603150KJNEA 10 4 R23, R24, R25, R26 RES, 0603, 100kΩ 5% 1/10W VISHAY CRCW0603100KJNEA 11 4 R9, R10, R17, R18 RES, 0603, OPTION OPTION 12 12 R32-R35, R37-R40, R42-R45 (OPT) RES, 0603, OPTION OPTION 13 3 R36, R41, R46 (OPT) RES, 2512, 0Ω, OPTION OPTION 14 4 C25, C26, C45, C46 CAP, 0603, CER. 10µF 50V X7R TDK, C1608X7R1H104M 15 1 R1 RES., 0603, CHIP, 10k, 1% VISHAY, CRCW060310K0FKED 16 1 R2 RES, 0603, 1Ω 5% 1/10W VISHAY,CRCW06031R00JNEA 17 4 R27, R29, R30, R31 RES, 0603, 100kΩ 5% 1/10W VISHAY CRCW0603100KJNEA Hardware 1 16 E1, E3-E17 TESTPOINT, TURRET 0.094" MILLMAX 2501-2-00-80-00-00-07-0 2 2 J1, J2 JACK, BANANA KEYSTONE 575-4 3 8 JP1-JP8 JMP, 0.079 SINGLE ROW HEADER, 3 PIN SULLINS, NRPN031PAEN-RC 4 8 XJP1-XJP8 SHUNT, .079" CENTER SAMTEC, 2SN-BK-G 5 4 STAND-OFFS STAND-OFF, SNAP ON, NYLON 0.375" TALL KEYSTONE, 8832(SNAP ON)

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. schematic Diagram D D C C B B A A 4V - 14V GND VOUT3 GND CLKIN TRACK2 VIN 1.5V / 4A MAX 1.2V / 4A MAX VOUT4 GND 3.3V / 4A MAX VOUT1 GND 2.5V / 4A MAX VOUT2 GND TEMP ON OFF ON OFF ON OFF ON OFF TRACK1 TRACK3 TRACK4 OPTIONAL JUMPERS FOR PARALLEL OPERATION CCM DCM 7343 7343 7343 RUN1 RUN2 RUN3 RUN4 7343 7343  1210 1210 1210 1210 VIN+ GND NOTE: UNLESS OTHERWISE SPECIFIED 1. ALL RESISTORS ARE IN OHMS, 0603. ALL CAPACITORS ARE 0603. MODE4 CCM DCM MODE3 CCM DCM MODE2 CCM DCM MODE1 VIN VOUT3 INTVCC3 INTVCC4 VOUT4 INTVCC1 SS1 FB1 VOUT1 COMP1 INTVCC2 SS2 COMP2 SS3 SS4 FB1 FB3 FB4 FB2 FB2 FB3 COMP2 COMP3 COMP1 COMP3 COMP4 COMP2 SS2 SS3 SS1 SS3 SS4 SS2 RUN2 RUN3 RUN1 RUN3 RUN4 RUN2 COMP4 COMP3 VOUT2 VOUT3 VOUT1 VOUT3 VOUT4 VOUT2 FB2 FB4 FB3 VOUT2 INTVCC1 INTVCC2 INTVCC3 INTVCC4 VIN RUN1 RUN2 RUN3 RUN4 RUN1 RUN2 RUN3 RUN4 INTVCC4 INTVCC3 INTVCC1INTVCC2 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 T O 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 LTM4644EY Tuesday, April 23, 2013 1 1 QUAD 4A STEP-DOWN MODULE REGULATOR LT SAM Y. N/A DEMO CIRCUIT 1900A 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 T O 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 LTM4644EY Tuesday, April 23, 2013 1 1 QUAD 4A STEP-DOWN MODULE REGULATOR LT SAM Y. N/A DEMO CIRCUIT 1900A 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 T O 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 LTM4644EY Tuesday, April 23, 2013 1 1 QUAD 4A STEP-DOWN MODULE REGULATOR LT SAM Y. N/A DEMO CIRCUIT 1900A

REVISION HISTORY

DESCRIPTION DATEAPPROVEDECO REV SAM Y.PRODUCTION3 04-23-13_ DESCRIPTION DATEAPPROVEDECO REV SAM Y.PRODUCTION3 04-23-13_ DESCRIPTION DATEAPPROVEDECO REV SAM Y.PRODUCTION3 04-23-13_ JP3JP31

3 R25

+C8 OPT +C8 OPT JP7JP7 JP1JP11 10K 10K E4E4 R38 OPT R38 OPT R18 OPT R18 OPT C22 OPT C22 OPT R39 OPT R39 OPT 22uF 25V 1206 22uF 25V 1206 C25 0.1uF C25 0.1uF TP2 PGOOD2 TP2 PGOOD2 C30 OPT 1206 C30 OPT 1206 R45 OPT R45 OPT R12 60.4K R12 60.4K R35 OPT R35 OPT E7E7 C32 100pF C32 100pF 22uF 25V 1206 22uF 25V 1206 R28 0805 R28 0805 R46 OPT2512 R46 OPT2512 +C37 OPT +C37 OPT C21 OPT C21 OPT TP1 PGOOD1 TP1 PGOOD1 R10 OPT R10 OPT JP5JP5 C41 OPT C41 OPT JP2JP21 JP8JP8 + C18 OPT + C18 OPT 22uF 25V 1206 22uF 25V 1206 C13 100pF C13 100pF E11E11 J2J2 C38 OPT 1206 C38 OPT 1206 TP3 PGOOD3 TP3 PGOOD3 E10E10 C14 OPT 1206 C14 OPT 1206 C46 0.1uF C46 0.1uF JP4JP41 C26 0.1uF C26 0.1uF 47uF 6.3V 47uF 6.3V R26 100K R26 100K R44 OPT R44 OPT R21 150K R21 150K R19 150K R19 150K E9E9 C28 47uF 6.3V C28 47uF 6.3V C42 OPT C42 OPT R17 OPT R17 OPT R27 100K R27 100K E8E8 R24 100K R24 100K E3E3 C11 OPT 1206 C11 OPT 1206 R34 OPT R34 OPT R30 100K R30 100K C45 0.1uF C45 0.1uF C12 OPT 1206 C12 OPT 1206 R33 OPT R33 OPT E15E15 R36 OPT2512 R36 OPT2512 R11 19.1K R11 19.1K R41 OPT2512 R41 OPT2512 TP4 PGOOD4 TP4 PGOOD4 R23 100K R23 100K E1E1 R29 100K R29 100K E17E17 R40 OPT R40 OPT JP6JP6 C29 47uF 6.3V 1206 C29 47uF 6.3V 1206 C16 47uF 6.3V 1206 C16 47uF 6.3V 1206 E14E14 C10 47uF 6.3V 1206 C10 47uF 6.3V 1206 TP5 CLKOUT TP5 CLKOUT C36 47uF 6.3V C36 47uF 6.3V E16E16 OPT OPT LTM4644EY LTM4644EY GND B2 VOUT1A1 VOUT3 F1 VOUT4 J1VOUT2C1 GND D3 GND A4 PGOOD2 C2 PGOOD3 F2 PGOOD4 J2 PGOOD1 C3 TEMPF3 CLKOUTJ3 INTVCC1C4 INTVCC2F4 INTVCC3 J4 INTVCC4 K5 TRACK/SS1A6 MODE1 B6RUN1C6 TRACK/SS2D6 MODE2 E6RUN2F6 TRACK/SS4 K6 MODE4 L6RUN4K7 FB4 J7 TRACK/SS3 G6 MODE3 H6RUN3J6 FB1A7 COMP1B7 CLKINC7 FB2D7 COMP2E7 SGND F7 FB3 G7 COMP3 H7 COMP4 L7 VIN1B3 VIN2E3 VIN3H3 VIN4L3 SVIN1B5 SVIN2E5 SVIN3H5 SVIN4L5 GND A5 GND B1 VOUT1A2 VOUT1A3 VIN3H4 VIN4L4 VIN2E4 VIN1B4 VOUT3 G1 VOUT3 G2 VOUT4 K2VOUT4 K1 GND L1 GND H1 GND E1 GND E2GND H2GND L2 GND G3GND K3 GND D4GND G4GND K4 GND C5 GND D5 GND F5 GND G5 GND J5 VOUT2D2 VOUT2D1 E6E6 R31 100K R31 100K E13E13 40.2K 40.2K 1uF 1uF C15 OPT 1206 C15 OPT 1206 C34 OPT 1206 C34 OPT 1206 C31 OPT C31 OPT C17 47uF 6.3V C17 47uF 6.3V 22uF 25V 1206 22uF 25V 1206 E5E5 +C2 68uF 16V +C2 68uF 16V R43 OPT R43 OPT E12E12 J1J1 R37 OPT R37 OPT R16 R16 C33 OPT 1206 C33 OPT 1206 R32 OPT R32 OPT 13.3K 13.3K R15 R15 R22 150K R22 150K C35 47uF 6.3V 1206 C35 47uF 6.3V 1206 R42 OPT R42 OPT +C27 OPT +C27 OPT OPT OPT

DEMO MANUAL DC1900A Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear .com  LINEAR TECHNOLOGY CORPORATION 2013 LT 0913 • PRINTED IN USA DEMONSTRATION BOARD IMPORTANT NOTICE Linear Technology Corporation (LT C) 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 ONL Y and is not provided by LT C 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 LT C 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. LT C assumes no liability for applications assistance, customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind. LT C 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 LT C applica- tion engineer. Mailing Address: Linear Technology 1630 McCarthy Blvd. Milpitas, CA 95035 Copyright © 2004, Linear Technology Corporation