SNVU682A July 2019 – March 2021 LM61495-Q1

6 Board Curves

Figure 6-1 LM61495-Q1 5-V 400-kHz Efficiency in Auto Mode

Figure 6-3 LM61495-Q1 3.3-V 400-kHz Efficiency in Auto Mode

Figure 6-5 LM61495-Q1 5-V 2.2-MHz Efficiency in Auto Mode

Figure 6-7 LM61495-Q1 3.3-V 2.2-MHz Efficiency in Auto Mode

Figure 6-9 LM61495-Q1 5-V 400-kHz V_OUT Regulation in Auto Mode

V_OUT = 5 V	F_SW = 400 kHz	I_OUT = 10 A
Frequency Tested: 0.15 MHz to 108 MHz

Figure 6-11 Conducted EMI versus CISPR25 Class 5 Limits (Green: Peak Signal, Blue: Average Signal)

V_OUT = 5 V	F_SW = 400 kHz	I_OUT = 10 A
Frequency Tested: 30 MHz to 300 MHz

Figure 6-13 Radiated EMI Bicon Vertical versus CISPR25 Class 5 Limits

V_OUT = 5 V	F_SW = 400 kHz	I_OUT = 10 A
Frequency Tested: 300 MHz to 1 GHz

Figure 6-15 Radiated EMI Log Vertical versus CISPR25 Class 5 Limits

Figure 6-2 LM61495-Q1 5-V 400-kHz Efficiency in FPWM Mode

Figure 6-4 LM61495-Q1 3.3-V 400-kHz Efficiency in FPWM Mode

Figure 6-6 LM61495-Q1 5-V 2.2-MHz Efficiency in FPWM Mode

Figure 6-8 LM61495-Q1 3.3-V 2.2-MHz Efficiency in FPWM Mode

Figure 6-10 LM61495-Q1 5-V 400-kHz V_OUT Regulation in FPWM Mode

V_OUT = 5 V	F_SW = 400 kHz	I_OUT = 10 A
Frequency Tested: 30 MHz to 300 MHz

Figure 6-12 Radiated EMI Bicon Horizontal versus CISPR25 Class 5 Limits

V_OUT = 5 V	F_SW = 400 kHz	I_OUT = 10 A
Frequency Tested: 300 MHz to 1 GHz

Figure 6-14 Radiated EMI Log Horizontal versus CISPR25 Class 5 Limits

V_OUT = 5 V

F_SW = 400 kHz

I_OUT = 10 A

Figure 6-16 LM61495-Q1 EVM Thermal Performance with V_IN = 12 V Providing ϴJA = 21.6°C/W

Table 6-1 BOM for Board Curves

V_OUT	FREQUENCY	R_FBB	C_OUT	C_IN + C_HF	L
3.3 V	400 kHz	43.2 kΩ	4 x 47 µF + 100 µF electrolytic + 2 x 2.2 µF	4 × 10 µF + 2 × 470 nF + 100 µF electrolytic	2.4 µH (744325240)
3.3 V	2200 kHz	43.2 kΩ	2 x 47 µF + 100 µF electrolytic + 2 x 2.2 µF	2 × 10 µF + 2 × 470 nF + 100 µF electrolytic	0.68 µH (744373460068)
5 V	400 kHz	24.9 kΩ	4 x 47 µF + 100 µF electrolytic + 2 x 2.2 µF	4 × 10 µF + 2 × 470 nF + 100 µF electrolytic	2.4 µH (744325240)
5 V	2200 kHz	24.9 kΩ	2 x 47 µF + 100 µF electrolytic + 2 x 2.2 µF	2 × 10 µF + 2 × 470 nF + 100 µF electrolytic	0.68 µH (744373460068)