Evaluation Board Test Results; Typical Efficiency And Power Loss Curves - Infineon EVAL TDA38813 1VOUT User Manual

EVAL_TDA38813_1VOUT user guide
User guide for TDA38813 evaluation board

Evaluation board test results

3 Evaluation board test results
3.1

Typical efficiency and power loss curves

V = 12 V, V = internal LDO, I
IN CC
efficiency and power loss curves include losses of the TDA38813, inductor losses, losses of the input and output
capacitors, and PCB trace
output voltages in the efficiency measurement.
Table 4 Inductors for V
V (V) L (nH)
OUT OUT
240 nH
1.0
820 nH
3.3
1000 nH
5.0
100
95
90
85
80
75
70
65
60
0
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0
Figure 9 Efficiency and power loss
User Guide
= 0 A – 12 A, F
OUT SW
losses. Error! Reference source not found.
= 12 V, F = 800 kHz
IN SW
P/N
CMLE063T-R24MS
CMLE063T-R82MS
CMLE063T-1R0MS
V = 12 V, F = 800 kHz - internal LDO, natural convection, T
IN SW
1 2 3 4 5
Output current (A)
V = 12 V, F = 800 kHz - internal LDO, natural convection, T
IN SW
1 2 3 4 5
Output current (A)
= 800 kHz, room temperature, natural convection. Note that the
shows the inductors used for each of the
DCR (m)
1.19
4.7
5.6
6 7 8 9 10
6 7 8 9 10
16
Size (mm)
6.95 x 6.6 x 2.8
7.25 x 6.6 x 2.8
7.25 x 6.6 x 2.8
= 25°C
A
1.0V - DEM
1.0V - FCCM
3.3V - DEM
3.3V - FCCM
5V - DEM
5V - FCCM
11 12
= 25°C
A
1.0V - DEM
1.0V - FCCM
3.3V - DEM
3.3V - FCCM
5V - DEM
5V - FCCM
11 12
V 1.0
2023-07-21