EVAL6730 STMicroelectronics, EVAL6730 Datasheet - Page 42

• Manufacturer Part Number: EVAL6730
• Description: EVAL BOARD FOR L6730XX
• Manufacturer: STMicroelectronics
• Type: Motor / Motion Controllers & Driversr

Specifications of EVAL6730

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Power - Output: 66W
• Voltage - Output: 3.3V
• Current - Output: 20A
• Voltage - Input: 4.5 ~ 14V
• Regulator Topology: Buck
• Frequency - Switching: 400kHz
• Board Type: Fully Populated
• Utilized Ic / Part: L6730
• Input Voltage: 8 V to 52 V
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: L6208
• Other names: 497-5501

Efficiency
9
Figure 36. Demoboard efficiency 400KHz
Figure 37. Demoboard efficiency 645KHz
42/50
Efficiency
The following figures show the demoboard efficiency versus load current for different values of
input voltage and switching frequency:
95.00%
90.00%
85.00%
80.00%
75.00%
95.00%
90.00%
85.00%
80.00%
75.00%
70.00%
1
1
V
V
V
IN = 5V
IN = 5V
IN = 5V
V
IN = 5V
V
IN = 12V
V
3
3
IN = 12V
Fsw=400KHz
Fsw=645KHz
5
5
7
7
Iout (A)
Iout (A)
9
9
11
11
V
O
13
13
= 3.3V
V
O
= 3.3V
L6730C - L6730D
15
15