STEVAL-ISA053V2 STMicroelectronics, STEVAL-ISA053V2 Datasheet - Page 41

• Manufacturer Part Number: STEVAL-ISA053V2
• Description: BOARD EVALUATION FOR PM6680A
• Manufacturer: STMicroelectronics
• Type: DC/DC Switching Converters, Regulators & Controllersr

Specifications of STEVAL-ISA053V2

• Design Resources: STEVAL-ISA053V2 Gerber Files PM6680A Eval Kit Schematic STEVAL-ISA053V2 Bill of Material
• Main Purpose: DC/DC, Step Down with LDO
• Outputs And Type: 3, Non-Isolated
• Voltage - Output: 1.8V, 3.3V, 5V
• Current - Output: 2.5A, 2.5A, 100mA
• Voltage - Input: 6 ~ 28V
• Regulator Topology: Buck
• Frequency - Switching: 200kHz, 300kHz
• Board Type: Fully Populated
• Utilized Ic / Part: PM6680A
• Input Voltage: 6 V to 36 V
• Output Voltage: 5 V
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: PM6680A
• Other names: 497-6379

PM6680A
Equation 37
We choose standard value L=4.7 µH.
∆I
I
I
2.
3.
4.
Equation 38
Equation 39
Equation 40
LRMS
peak
L(max)
Output capacitor selection
We would like to have an output ripple smaller than 25 mV.
OUT1: POSCAP 4TPE150MI
OUT2: POSCAP 6TPE220M
Power MOSFETs
OUT1:High side: STS5NF60L
Low side: STS7NF60L
OUT2:High side: STS5NF60L
Low side: STS7NF60L
Current limit
OUT1:
(Let's assume the maximum temperature Tmax = 75 °C in R
choose standard value R
OUT2:
= 2.5 A + 0.58 A = 3.83 A
= 2.523 A
= 0.886 A @VIN =24 V.
CSENSE
= 560 Ω.
DSon
calculation). We
A
Design guidelines
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