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User Guide 071

9

Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is
cautioned to verify that the document is current before proceeding.

For information regarding Intersil Corporation and its products, see 

www.intersil.com

UG071.0

May 3, 2016

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FIGURE 21. THERMAL IMAGE AT V

IN

 = 5V, V

OUT

 = 1.2V, I

OUT 

= 3A, f

SW 

= 1.5MHz, T

= +25°C, FREE AIR 0 LFM

ISL8202MEVAL1Z Performance Data

The following data was acquired using a ISL8202MEVAL1Z evaluation 

board at +25°C ambient and free air 0LFM.  (Continued)

MAX=37.1°C

Summary of Contents for ISL8202MEVAL1Z

Page 1: ...short circuit with hiccup mode overvoltage and negative overcurrent protection It also has a dedicated enable pin and power good flag that allow for easy system power rails sequencing The ISL8202MEVAL1Z evaluation board is designed to demonstrate the performance of the ISL8202M The board is by default set to be 1 2V output voltage with 1 5MHz switching frequency Other output voltage values can be ...

Page 2: ...w quiescent current For further information please refer to the ISL8202M datasheet Quick Start The ISL8202MEVAL1Z is set to be VOUT 1 2V fSW 1 5MHz by default For other VOUT options the recommended fSW needs to be adjusted by changing resistor R7 connected to the FS pin Please refer to Table 1 for more information The following operation procedure will be based on default setting 1 Before applying...

Page 3: ...on 2 When the FS pin is directly tied to VIN the frequency of operation is fixed at 1 8MHz For a recommended switching frequency with typical operation conditions refer to Table 1 More detailed information on recommended switching frequency and fSW selection range is provided in Recommended Switching Frequency and Operation Range Recommended Switching Frequency Selection of switching frequency for...

Page 4: ...rmal Considerations and Current Derating Board layout is very critical in order to make the module operate safely and deliver maximum allowable power In order for the board to operate properly in the high ambient temperature environments and carry full load currents the board layout needs to be carefully designed to maximize thermal performance To achieve this select enough trace width copper weig...

Page 5: ...1 1 2 3 4 5 6 7 8 BAN1 C12 390PF BAN4 100K R13 R16 DNP C10 DNP BAN3 C2 22UF C4 OPEN R3 200K 22UF C8 R9 22 1K SW1 C15 820PF C3 22UF R6 DNP 680PF C14 TP2 TP4 150K R12 2N7002 7 F Q1 DNP R2 C9 DNP TP1 C13 220PF C5 OPEN 200K R1 TP6 C7 22UF 130K R7 LED1 R5 0 TP8 TP5 TP7 R14 2K EN PGOOD PGOOD SW SYNC UNNAMED_1_CONN8_I67_IN1 UNNAMED_1_CONN8_I67_IN2 UNNAMED_1_CONN8_I67_IN3 UNNAMED_1_CONN8_I67_IN5 UNNAMED_1...

Page 6: ...LD ROHS LED1 1 LITEON VISHAY LTST C190KGKT LED SMD 0603 GREEN CLEAR 2V 20mA 571nm 35mcd ROHS U1 1 INTERSIL ISL8202MIRZ IC 3A PWR MODULE ANALOG DC DC 22P QFN 4 5x7 5 ROHS Q1 1 DIODES INC 2N7002 7 F TRANSISTOR N CHANNEL 3LD SOT 23 60V 115mA ROHS R7 1 TE CONNECTIVITY 3 1879216 1 RES SMD 0402 130k 1 16W 0 1 TF ROHS R12 1 TE CONNECTIVITY 3 1879216 2 RES SMD 0402 150k 1 16W 0 1 TF ROHS R9 1 TE CONNECTIV...

Page 7: ...ser Guide 071 UG071 0 May 3 2016 Submit Document Feedback 7 Board Layout FIGURE 11 TOP LAYER TOP VIEW FIGURE 12 INNER LAYER 1 TOP VIEW FIGURE 13 INNER LAYER 2 TOP VIEW FIGURE 14 BOTTOM LAYER BOTTOM VIEW ...

Page 8: ... 2 x 22µF CERAMIC CAPACITORS LOAD CURRENT SLEW RATE 1A µs 60 0 65 0 70 0 75 0 80 0 85 0 90 0 95 0 100 0 0 0 5 1 1 5 2 2 5 3 LOAD CURRENT A Vout 1V Fsw 1 3MHz Vout 1 2V Fsw 1 5MHz Vout 2 5V Fsw 2MHz EFFICIENCY 60 0 65 0 70 0 75 0 80 0 85 0 90 0 95 0 100 0 0 0 5 1 1 5 2 2 5 3 LOAD CURRENT A Vout 1V Fsw 1 3MHz Vout 1 2V Fsw 1 5MHz Vout 2 5V Fsw 2MHz Vout 3 3V Fsw 2MHz EFFICIENCY 60 0 65 0 70 0 75 0 8...

Page 9: ...ument is current before proceeding For information regarding Intersil Corporation and its products see www intersil com UG071 0 May 3 2016 Submit Document Feedback FIGURE 21 THERMAL IMAGE AT VIN 5V VOUT 1 2V IOUT 3A fSW 1 5MHz TA 25 C FREE AIR 0 LFM ISL8202MEVAL1Z Performance Data The following data was acquired using a ISL8202MEVAL1Z evaluation board at 25 C ambient and free air 0LFM Continued MA...

Page 10: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Intersil ISL8202MEVAL1Z ...

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