Micrel MIC24056 Скачать руководство пользователя страница 7

Micrel, Inc. 

MIC24056 Evaluation Board 

 

 

February 11, 2013 

Revision 1.0 

 

 

Bill of Materials (Continued) 

Item 

Part Number 

Manufacturer 

Description 

Qty. 

R6, R14, R17 

CRCW060310K0FKEA 

Vishay Dale 

10.0k

Ω Resistor, Size 0603, 1% 

R7 

CRCW06034K99FKEA 

Vishay Dale 

4.99k

Ω Resistor, Size 0603, 1% 

R8 

CRCW06032K87FKEA 

Vishay Dale 

2.87k

Ω Resistor, Size 0603, 1% 

R9 

CRCW06032K006FKEA 

Vishay Dale 

2.00k

Ω Resistor, Size 0603, 1% 

R10 

CRCW06031K18FKEA 

Vishay Dale 

1.18k

Ω Resistor, Size 0603, 1% 

R11 

CRCW0603806RFKEA 

Vishay Dale 

806Ω Resistor, Size 0603, 1% 

R12 

CRCW0603475RFKEA 

Vishay Dale 

475Ω Resistor, Size 0603, 1% 

R13 

CRCW06030000FKEA 

Vishay Dale 

0

Ω Resistor, Size 0603, 5% 

R15 

CRCW060349R9FKEA 

Vishay Dale 

49.9

Ω Resistor, Size 0603, 1% 

R16, R18 

CRCW06031R21FKEA 

Vishay Dale 

1.21

Ω Resistor, Size 0603, 1% 

R20 

Open 

 

 

 

All Reference 
designators ending 
with “A” 

Open 

 

 

 

U1 

MIC24056YJL 

Micrel. Inc.

(

9

) 

12A, High-Efficiency, Synchronous DC/DC 
Buck Regulator with Hyper Light Load  

Note: 

9. 

Micrel, Inc.:

  

www.micrel.com

. 

 

 

 

 

Содержание MIC24056

Страница 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 ...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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 ...

Страница 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...

Страница 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 ...

Страница 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 ...

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

Страница 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...

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