Filter
Top Products
AN42 APPLICATION NOTE
22
Component Case Temperature
Note:
Case temperatures are all within guidelines. Our guideline is that case temperatures for all components should be below 105°C
@25°C Ambient.
Comments:
Excellent input ripple voltage. Input ripple voltage is recommended to be less than 5% of the output voltage.
Device Description
Case Temperature
(°C)
I
load
= 9.9A
Case Temperature
(°C)
I
load
= 12.4A
Case Temperature
(°C)
I
load
=13.9A
Q3A MOSFET
K1388
57 63 56.3
Q3B MOSFET
K1388
58 64 66.6
L1 Inductor,
Unknown
53 56 61.2
Q2 Schottky Diode
2048CT
66 70 87
IC Raytheon RC5040 52 54 58
Cin Input Capacitor 1000µF 38.2 36.8 39
Cout Output Capacitor
1500µF
35 34.8 38.2
Evaluation Summary:
The on-board DC-DC converter is fully functional. It has
excellent load regulation, transient response, and input
voltage ripple.
Attachment A Attachment B