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Maxim Integrated MAX17572, Quick Start Manual

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Maxim Integrated MAX17572 Quick Start Manual Download Page 6

Maxim Integrated  │

 

6

www.maximintegrated.com

Evaluates: MAX17572 in 3.3V  

Output-Voltage Application

MAX17572 3.3V Output  

Evaluation Kit

MAX17572 EV System Schematic

3.3V, 1A

PGND

15UH

10K

C10

C9

R8

D1

3

2

1

JU1

R4

R3

C2

C5

C4

C7

EN/UVLO

R2

R1

RT/SYNC

SGND

RESET

VOUT

2

1

L1

R6

C8

R7

2

1

C3

C1

VIN

PGND

5

4

6

12

11

1

8

7

9

13

2

10

3

U1

80V

VIN

40.2K

MAX17572

33UF

0.1UF

22UF

0.1UF

5600PF

86.6K

32.4K

3.32M

2.2UF

100PF

1K

VCC

604K

VCC

4.7UF

47PF

EP

BST

LX

VCC

GND

SS

FB

RT/SYNC

RESET\

EXTVCC

VIN

PGND

EN/UVLO

+

Summary of Contents for MAX17572

Page 1: ...rrent and Overtemperature Protection Proven PCB Layout Fully Assembled and Tested 19 8651 Rev 1 6 17 Ordering Information appears at end of data sheet Quick Start Recommended Equipment MAX17572 3 3V output EV kit 4 5V to 60V 2A DC input power supply Load capable of sinking 1A Digital voltmeter DVM Procedure The EV kit is fully assembled and tested Follow the steps below to verify the board operati...

Page 2: ...l Set the voltage at which the device turns on with a resistive voltage divider connected from VIN to SGND see Figure 1 Connect the center node of the divider to EN UVLO Choose R1 to be 3 3MΩ and then calculate R2 as follows INU 1 215 R1 R2 V 1 215 where VINU is the voltage at which the device is required to turn on Ensure that VINU is higher than 0 8 x VOUT If the EN UVLO pin is driven from an ex...

Page 3: ... Kit Performance Report 3 20 3 25 3 30 3 35 3 40 3 45 3 50 0 00 0 20 0 40 0 60 0 80 1 00 OUTPUT VOLTAGE V LOAD CURRENT A LOAD AND LINE REGULATION 3 3V OUTPUT PWM MODE VIN 36V VIN 48V VIN 24V VIN 12V toc01 20 30 40 50 60 70 80 90 100 0 0 0 2 0 4 0 6 0 8 1 0 EFFICIENCY LOAD CURRENT A EFFICIENCY vs LOADCURRENT 3 3V OUTPUT PWM MODE VIN 48V VIN 36V VIN 24V VIN 12V MODE SGND toc02 R1 SGND VIN EN UVLO R2...

Page 4: ... 9kHz PHASE MARGIN 64 5 PHASE GAIN PHASE toc03 CROSSOVER FREQUENCY 42 9kHz PHASE MARGIN 64 5 PHASE GAIN 40 30 20 10 0 10 20 30 80 103 20 0 20 40 60 105 104 100μS div 50mV div LOAD CURRENT STEPPED FROM 0 5ATO 1A 3 3V OUTPUT PWM MODE VOUT AC 500mA div toc05 ILOAD Component Suppliers Ordering Information EV Kit Performance Report continued SUPPLIER WEBSITE Coilcraft Inc www coilcraft com Murata Ameri...

Page 5: ...c capacitor 0402 2 C6 C7 MURATA GRM155R71H104KE14 7 47pF 10 50V X7R 0402 Ceramic capacitor 0402 1 C8 MURATA GRM1555C1H470JA01 8 100pF 10 50V X7R 0402 Ceramic capacitor 0402 1 C9 MURATA GRM1555C1H101JA01D 9 0 1uF 10 100V X7R 0603 Ceramic capacitor 0603 1 C10 MURATA GRM188R72A104KA35 10 Diode PIV 20V IF 0 5A 1 D1 ON SEMICONDUCTOR NSR05F20NXT5G 11 3 pin header 36 pin header 0 1 centers 1 JU1 Sullins ...

Page 6: ...m Schematic 3 3V 1A PGND 15UH 10K C10 C9 R8 D1 3 2 1 JU1 R4 R3 C2 C5 C4 C7 EN UVLO R2 R1 RT SYNC SGND RESET VOUT 2 1 L1 R6 C8 R7 2 1 C3 C1 VIN PGND 5 4 6 12 11 1 8 7 9 13 2 10 3 U1 80V VIN 40 2K MAX17572 33UF 0 1UF 22UF 0 1UF 5600PF 86 6K 32 4K 3 32M 2 2UF 100PF 1K VCC 604K VCC 4 7UF 47PF EP BST LX VCC GND SS FB RT SYNC RESET EXTVCC VIN PGND EN UVLO ...

Page 7: ...ximintegrated com Evaluates MAX17572 in 3 3V Output Voltage Application MAX17572 3 3V Output Evaluation Kit MAX17572 3 3V EV Kit Top Silkscreen MAX17572 3 3V EV Kit Top MAX17572 3 3V EV Kit Bottom MAX17572 EV System PCB Layout ...

Page 8: ...tegrated Products Inc 2017 Maxim Integrated Products Inc 8 Evaluates MAX17572 in 3 3V Output Voltage Application MAX17572 3 3V Output Evaluation Kit Revision History REVISION NUMBER REVISION DATE DESCRIPTION PAGES CHANGED 0 9 16 Initial release 1 6 17 Updated Typical Operating Characteristics Resistor references in Adjusting Output Voltage section Bill of Materials Schematic and PCB Layout figures...

Page 9: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Maxim Integrated MAX17572EVKITA ...

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