background image

Micrel, Inc. 

MIC24056 Evaluation Board 

 

 

February 11, 2013 

Revision 1.0 

 

 

Bill of Materials 

Item 

Part Number 

Manufacturer 

Description 

Qty. 

C1 

Open 

 

 

 

C2, C3 

12103C475KAT2A 

AVX

(

1

)

 

4.7µF Ceramic Capacitor, X7R, Size 1210, 25V 

GRM32DR71E475KA61K 

Murata

(

2

)

 

C3225X7R1E475K 

TDK

(

3

)

 

C4, C5, C13 

12106D107MAT2A 

AVX 

100µF Ceramic Capacitor, X5R, Size 1210, 6.3V 

GRM32ER60J107ME20L 

Murata 

C3225X5R0J107M 

TDK 

 C15 

Open 

 

 

 

C6, C7, C10 

06035C104KAT2A 

AVX

 

0.1µF Ceramic Capacitor, X7R, Size 0603, 50V 

GRM188R71H104KA93D 

Murata 

C1608X7R1H104K 

TDK 

C8 

0603ZC105KAT2A 

AVX 

1.0µF Ceramic Capacitor, X7R, Size 0603, 10V 

GRM188R71A105KA61D 

Murata 

C1608X7R1A105K 

TDK 

C9 

0603ZD225KAT2A 

AVX 

2.2µF Ceramic Capacitor, X5R, Size 0603, 10V 

GRM188R61A225KE34D 

Murata 

C1608X5R1A225K 

TDK 

C12 

06035C472KAZ2A 

AVX 

4.7nF Ceramic Capacitor, X7R, Size 0603, 50V 

GRM188R71H472K 

Murata 

C1608X7R1H472K 

TDK 

C14 

B41851F7227M 

EPCOS

(

4

)

 

220µF Aluminum Capacitor, 35V 

C11, C16 

Open 

 

 

 

D1 

SD103AWS 

MCC

(

5

)

 

40V, 350mA, Schottky Diode, SOD323 

SD103AWS-7 

Diodes Inc.

(

6

)

 

SD103AWS 

Vishay

(

7

)

 

L1 

HCF1305-2R2-R 

Cooper Bussmann

(

8

)

  2.2µH Inductor, 15A Saturation Current 

R1 

CRCW06032R21FKEA 

Vishay Dale 

2.21

Ω Resistor, Size 0603, 1% 

R2 

CRCW06032R00FKEA 

Vishay Dale 

2.00

Ω Resistor, Size 0603, 1% 

R3 

CRCW060319K6FKEA 

Vishay Dale 

19.6k

Ω Resistor, Size 0603, 1% 

R4 

CRCW06032K49FKEA 

Vishay Dale 

2.49k

Ω Resistor, Size 0603, 1% 

R5 

CRCW060320K0FKEA 

Vishay Dale 

20.0k

Ω Resistor, Size 0603, 1% 

Notes: 

1.  AVX:  

www.avx.com

. 

2.  Murata:  

www.murata.com

. 

3.  TDK:  

www.tdk.com

. 

4.  EPCOS:  

www.epcos.com

. 

5.  MCC:  

www.mccsemi.com

6.  Diodes, Inc.:  

www.diodes.com

. 

7.  Vishay:  

www.vishay

 

8.  Cooper Bussmann:  

www.cooperbussmann.com

 

  

Summary of Contents for MIC24056

Page 1: ...t voltage conversion is limited by the maximum duty cycle Datasheets and support documentation are available on Micrel s web site at www micrel com Requirements The MIC24056 evaluation board requires only a single power supply with at least 10A current capability The MIC24056 has internal VDD LDO so no external linear regulator is required to power the internal biasing of the IC When VIN 5 5V VDD ...

Page 2: ...hanged by moving the jumper to a respective position to get an indicated voltage on the board If a desired voltage is not shown on the board it is easily modified by removing RBOTTOM and replacing it with the values that yield the desired output voltage Once R4 is selected RBOTTOM can be calculated using Equation 2 FB OUT FB BOTTOM V V V R4 R Eq 2 For VFB 0 8V as in Equation 3 0 8V V 0 8V R4 R OUT...

Page 3: ...d proximity to other heat emitting components 50 55 60 65 70 75 80 85 90 95 100 0 3 6 9 12 15 EFFICIENCY OUTPUT CURRENT A Efficiency VIN 5V vs Output Current 3 3V 2 5V 1 8V 1 5V 1 2V 1 0V 0 9V 0 8V VIN 5V 50 55 60 65 70 75 80 85 90 95 100 0 3 6 9 12 15 EFFICIENCY OUTPUT CURRENT A Efficiency VIN 12V vs Output Current 5 0V 3 3V 2 5V 1 8V 1 5V 1 2V 1 0V 0 9V 0 8V VIN 12V 0 20 40 60 80 100 0 2 4 6 8 1...

Page 4: ...Micrel Inc MIC24056 Evaluation Board February 11 2013 4 Revision 1 0 Evaluation Board Schematic Figure 1 Schematic of MIC24056 Evaluation Board J11 R13 and R15 are for testing purposes ...

Page 5: ...IC24056 Evaluation Board February 11 2013 5 Revision 1 0 Evaluation Board Schematic Continued Figure 2 Schematic of MIC24056 Evaluation Board Optimized for Smaller Footprint J11 R13 and R15 are for testing purposes ...

Page 6: ...R61A225KE34D Murata C1608X5R1A225K TDK C12 06035C472KAZ2A AVX 4 7nF Ceramic Capacitor X7R Size 0603 50V 1 GRM188R71H472K Murata C1608X7R1H472K TDK C14 B41851F7227M EPCOS 4 220µF Aluminum Capacitor 35V 1 C11 C16 Open D1 SD103AWS MCC 5 40V 350mA Schottky Diode SOD323 1 SD103AWS 7 Diodes Inc 6 SD103AWS Vishay 7 L1 HCF1305 2R2 R Cooper Bussmann 8 2 2µH Inductor 15A Saturation Current 1 R1 CRCW06032R21...

Page 7: ...stor Size 0603 1 1 R10 CRCW06031K18FKEA Vishay Dale 1 18kΩ Resistor Size 0603 1 1 R11 CRCW0603806RFKEA Vishay Dale 806Ω Resistor Size 0603 1 1 R12 CRCW0603475RFKEA Vishay Dale 475Ω Resistor Size 0603 1 1 R13 CRCW06030000FKEA Vishay Dale 0Ω Resistor Size 0603 5 1 R15 CRCW060349R9FKEA Vishay Dale 49 9Ω Resistor Size 0603 1 1 R16 R18 CRCW06031R21FKEA Vishay Dale 1 21Ω Resistor Size 0603 1 2 R20 Open ...

Page 8: ...ion Board February 11 2013 8 Revision 1 0 PCB Layout Recommendations 1 Top Layer Mid Layer 1 Note 1 Refer to PCB Layout Guideline section for component placement and layout in MIC24056 datasheet on Micrel web page www micrel com ...

Page 9: ...Micrel Inc MIC24056 Evaluation Board February 11 2013 9 Revision 1 0 PCB Layout Recommendations 1 Continued Mid Layer 2 Bottom Layer ...

Page 10: ...tsoever and Micrel disclaims any express or implied warranty relating to the sale and or use of Micrel products including liability or warranties relating to fitness for a particular purpose merchantability or infringement of any patent copyright or other intellectual property right Micrel Products are not designed or authorized for use as components in life support appliances devices or systems w...

Reviews: