Maxim Integrated MAX17509 Quick Start Manual Download Page 9 | Manualshive

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Evaluates: MAX17509 4.5V–16V,

Dual 3A Synchronous Buck Converter

MAX17509 Evaluation Kit

Revision History

REVISION

NUMBER

REVISION

DATE

DESCRIPTION

PAGES

CHANGED

0

6/15

Initial release

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For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.

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Summary of Contents for MAX17509

Page 1: ...endent Adjustable EN UVLO Input Independent Adjustable Soft Start Time with Soft Stop Option Selectable Switching Slew Rate for EMC Compliant Low Profile and Small Size Surface Mount Components Fully Assembled and Tested 19 7670 Rev 0 6 15 Ordering Information appears at end of data sheet Quick Start Recommended Equipment MAX17509 EV kit 4 5V to 16V 4A DC input power supply Two loads capable of si...

Page 2: ...tions Table 1 displays the resistor programming options When the output voltage is changed refer to the MAX17509 IC data sheet s recommendation on the inductance and capacitance selection criteria Table 1 Summary of Resistor Programming Index 1 RES R13 MODE R1 SS1 R2 SS2 R5 R8 COARSE_ R6 R7 FINE_ kΩ MODE PHASE SHIFT FSW OC SSTOP1 TSS1 ms LX SLEW SSTOP2 TSS2 ms COARSE VOUT V FINE VOUT V 0 475 OPEN ...

Page 3: ...g frequency The phase shift mode can be selected to be either 0 or 180 out of phase in the dual output mode only The device is also capable of configuring different switching frequency options 0 5MHz 1MHz 1 5MHz and 2MHz for input voltage up to 6V Soft Start Soft Stop Options and Over Current Response SS1 The SS1 pin sets regulator 1 s soft start timing among 1 4 8 and 16ms as well as its soft sto...

Page 4: ...UT OUTCOARSE V V Index 0 02 Where VOUTCOARSE is the COARSE_ closest to the value of VOUT Index is the index number selected for the FINE resistor value from Table 1 Table 2 summarizes the resistor setting and the optimal inductor and output capacitor selection for typical output voltages for typical 12VIN range Consult the MAX17509 IC data sheet s recommendation on the inductance and capacitance v...

Page 5: ... toc04 VIN 5V VIN 12V VIN 16V 60 65 70 75 80 85 90 95 100 0 1000 2000 3000 EFFICIENCY OUTPUT CURRENT mA VOUT1 3 3V EFFICIENCY vs OUTPUT CURRENT toc01 EN2 0V VIN 16V VIN 5V VIN 12V 60 65 70 75 80 85 90 0 1000 2000 3000 EFFICIENCY OUTPUT CURRENT mA VOUT2 1 2V EFFICIENCY vs OUTPUT CURRENT toc02 EN1 0V VIN 16V VIN 12V VIN 5V 3 250 3 255 3 260 3 265 3 270 3 275 3 280 0 0 0 5 1 0 1 5 2 0 2 5 3 0 V OUT V...

Page 6: ... 1 2V IOUT 3A TSS 8ms 500mV div toc08 4ms div LX VOUT 10V div EN PGOOD 5V div 5V div LOAD SHORT CIRCUIT SHUTDOWN LATCH VIN 12V VOUT 1 2V 500mV div toc09 4µs div LX VOUT 10V div PGOOD 5V div IL 2A div SYNCHRONIZATION vs LX1 and LX2 180 OUT OF PHASE 10V div toc10 400ns div LX2 LX1 10V div CLKIN 5V div LOAD CURRENT TRANSIENT RESPONSE VIN 12V VOUT 3 3V IOUT 1 5 3A 1A div toc05 40us div IOUT VOUT 200mV...

Page 7: ... Synchronous Buck Converter MAX17509 Evaluation Kit Figure 2 MAX17509 EV Kit Component Placement Guide Solder Side Figure 3 MAX17509 EV Kit PCB Layout Component Side Figure 4 MAX17509 EV Kit PCB Layout PGND Layer 2 Figure 1 MAX17509 EV Kit Component Placement Guide Component Side ...

Page 8: ...uation Kit Figure 5 MAX17509 EV Kit PCB Layout PGND Layer 3 Figure 6 MAX17509 EV Kit PCB Layout Solder Side Denotes RoHS compliant Ordering Information PART TYPE MAX17509EVKIT EV Kit Component Information and Schematic See the following links for component information and schematic MAX17509 EV BOM MAX17509 EV Schematic ...

Page 9: ...any time Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products Inc 2015 Maxim Integrated Products Inc 9 Evaluates MAX17509 4 5V 16V Dual 3A Synchronous Buck Converter MAX17509 Evaluation Kit Revision History REVISION NUMBER REVISION DATE DESCRIPTION PAGES CHANGED 0 6 15 Initial release For pricing delivery and ordering information please contact Maxim Direct at...

Page 10: ... C4 U1 C1 R3 C7 C9 TP1 C15 C16 C3 C6 SW2 R12 R17 C12 R2 C8 R7 OUT1 C13 C14 L2 C17 R18 L1 R6 SW1 OUT1 AVCC VCC SYNC IN AVCC IN OUT2 VCC IN IN VCC IN AVCC 2 1 2 1 11 15 14 13 10 4 6 5 4 K A 29 16 9 23 3 2 21 4 19 6 30 33 25 32 26 17 8 6 18 12 7 A 5 K 31 1 24 27 22 20 28 5 6 5 4 6 5 4 EN1 COARSE1 FINE1 SS1 SS2 FINE2 COARSE2 EN2 OUT2 PGND2 PGND2 LX2 LX2 IN2 IN2 BST2 EP PGOOD2 MODE N C SYNC VCC AVCC SG...

Page 11: ...m Coilcraft XAL4020 152ME_ Wurth WE LHMI 74437324015 1 5uH 20 34 8mOhm inductor L1 1 2 2uH 20 35 2mohm inductor 4mm x 4mm x 2 1mm Coilcraft XAL4020 222ME_ Wurth WE LHMI 74437324022 2 2uH 20 51mOhm inductor LED1 LED2 2 LED YELLOW 0603 LITE ON LTST C190YKT IN PGND1 PGND3 OUT1 OUT2 6 9020 BUSS EVK KIT PARTS MAXIM PAD WIRE NATURAL SOLID WEICO WIRE SOFT DRAWN BUS TYPE S 20AWG 9020 BUSS U1 1 Maxim MAX17...

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