WebBench Output parameters - EXCEL output for components

Hi Paul,

Can you provide your design inputs? I am assuming you are using LM5116. Let me know if this is not correct.

Thanks,

Nikhil - The design is as follows:
VinMin = 50V
VinMax = 90V
Vout = 12V

Device = LM5116MHX/NOPB
Topology = Buck

Design Bench Outputs:
Part Manufacturer Part Number Quantity Price Attribute 1 Name Attribute 1 Value Attribute 2 Name Attribute 2 Value Attribute 3 Name Attribute 3 Value Footprint
Cboot Taiyo Yuden EMK212B7105KG-T 1 0.02 Cap 1uF ESR 0Ohm VDC 16V 805
Ccomp Yageo America CC0805KRX7R9BB681 1 0.01 Cap 680pF ESR 0Ohm VDC 50V 805
Ccomp2 Yageo America CC0805KRX7R9BB471 1 0.01 Cap 470pF ESR 0Ohm VDC 50V 805
Cin CUSTOM CUSTOM 1 0 Cap 10uF ESR 1mOhm VDC 112.5V CUSTOM
Cinx TDK C3216JB2E104K 1 0.07 Cap 100nF ESR 0.021Ohm VDC 250V 1206
Cout Nichicon UUD1C270MCL1GS 1 0.1 Cap 27uF ESR 0.76Ohm VDC 16V SM_RADIAL_5MM
Cramp Yageo America CC0805KRX7R9BB561 1 0.01 Cap 560pF ESR 0Ohm VDC 50V 805
Css MuRata GRM216R71H103KA01D 1 0.01 Cap 10nF ESR 0Ohm VDC 50V 805
Cvcc Taiyo Yuden EMK212B7105KG-T 1 0.02 Cap 1uF ESR 0Ohm VDC 16V 805
D1 Diodes Inc. DFLS1200-7 1 0.21 VFatIo 0.85V Io 1A VRRM 200V PowerDI123
L1 Bourns SRR1260-820M 1 0.41 L 82uH DCR 0.15Ohm IDC 1.9A SRR1260
M1 Vishay-Siliconix SI4464DY-E3 1 0.42 VdsMax 200V IdsMax 1.7A Rdson 0.21Ohm SOIC-8
M2 Vishay-Siliconix SI4464DY-E3 1 0.42 VdsMax 200V IdsMax 1.7A Rdson 0.21Ohm SOIC-8
Rcomp Panasonic ERJ-6ENF4322V 1 0.01 Resistance 43.2kOhm Tolerance 1% Power 0.125W 805
Renable Panasonic ERJ-6ENF1004V 1 0.01 Resistance 1000kOhm Tolerance 1% Power 0.125W 805
Rfbb Panasonic ERJ-6ENF1101V 1 0.01 Resistance 1.1kOhm Tolerance 1% Power 0.125W 805
Rfbt Panasonic ERJ-6ENF9761V 1 0.01 Resistance 9.76kOhm Tolerance 1% Power 0.125W 805
Rsense Panasonic ERJ-L03KF50MV 1 0.09 Resistance 0.05Ohm Tolerance 1% Power 0.1W 603
Rt Panasonic ERJ-6ENF9761V 1 0.01 Resistance 9.76kOhm Tolerance 1% Power 0.125W 805
Ruv1 Panasonic ERJ-6ENF3091V 1 0.01 Resistance 3.09kOhm Tolerance 1% Power 0.125W 805
Ruv2 Panasonic ERJ-6ENF9762V 1 0.01 Resistance 97.6kOhm Tolerance 1% Power 0.125W 805
U1 Texas Instruments LM5116MHX/NOPB 1 2.42 MXA20A
Rramp Panasonic ERJ-6ENF4753V 1 0.01 Resistance 475kOhm Tolerance 1% Power 0.125W 805

I have created a secondary design using a capacitive-stepdown but there are a couple of issues with this: One being what happens should one of the capacitors diminish in capacity? Secondly there is concern about ability to provide the needed input power.

Do you have any thoughts on other means to resolve the issue of the custom capacitor?

If you could respond to paul.wood@nextern.com it would be helpful.

Thanks,

Paul