JAJSR90 データシート

JAJSR90A September 2023 – July 2024 LMQ64480-Q1 , LMQ644A0-Q1 , LMQ644A2-Q1

PRODUCTION DATA

8.2.3 Application Curves

Unless otherwise specified, the following conditions apply: Device: LMQ644A2, V_IN = 13.5 V, T_A = 25°C. The circuit is shown in Figure 8-1, and Figure 8-2 with the appropriate BOM from Table 8-7.

LMQ64480-Q1 LMQ644A0-Q1 LMQ644A2-Q1 Efficiency

V_OUT = 5 V

F_SW = 400 kHz

Auto mode

Single Output

Figure 8-9 Efficiency

V_OUT = 5 V

F_SW = 400 kHz

FPWM mode

Single Output

Figure 8-11 Efficiency

V_OUT = 3.3 V

F_SW = 400 kHz

Auto mode

Single Output

Figure 8-13 Efficiency

V_OUT = 5 V

F_SW = 2.1 MHz

Auto mode

Single Output

Figure 8-15 Efficiency

V_OUT = 5 V

F_SW = 2.1 MHz

FPWM mode

Single Output

Figure 8-17 Efficiency

V_OUT = 3.3 V

F_SW = 2.1 MHz

Auto mode

Single Output

Figure 8-19 Efficiency

V_OUT = 5 V

F_SW = 2.1 MHz

Auto mode

Dual Output

Figure 8-21 Efficiency

V_OUT = 5 V

F_SW = 2.1 MHz

FPWM mode

Dual Output

Figure 8-23 Efficiency

V_OUT = 3.3 V

F_SW = 2.1 MHz

Auto mode

Dual Output

Figure 8-25 Efficiency

LMQ64480-Q1 LMQ644A0-Q1 LMQ644A2-Q1 Load and Line Regulation

V_OUT = 3.3 V

F_SW = 2.1 MHz

FPWM mode

Single Output

Figure 8-27 Load and Line Regulation

V_OUT = 3.3 V

F_SW = 2.1 MHz

FPWM mode

Dual Output

Figure 8-29 Load and Line Regulation

V_OUT = 5 V

F_SW = 2.1 MHz

FPWM mode

Dual Output

Figure 8-31 Load and Line Regulation

LMQ64480-Q1 LMQ644A0-Q1 LMQ644A2-Q1 Dropout

V_OUT = 5 V

F_SW = 400 kHz

FPWM mode

Single Output

Figure 8-33 Dropout

V_OUT = 3.3 V

F_SW = 400 kHz

FPWM mode

Single Output

Figure 8-35 Dropout

LMQ64480-Q1 LMQ644A0-Q1 LMQ644A2-Q1 Dropout Recovery

V_OUT = 5 V	F_SW = 400 kHz	Auto mode
I_OUT = 3 A	V_IN = 5 to 7 V	Single Output

Figure 8-37 Dropout Recovery

LMQ64480-Q1 LMQ644A0-Q1 LMQ644A2-Q1 Start-Up With
100-mA Load

V_OUT = 3.3 V	F_SW = 400 kHz	FPWM mode
I_OUT = 100 mA	V_IN = 13.5 V	Dual Output

Figure 8-39 Start-Up With 100-mA Load

LMQ64480-Q1 LMQ644A0-Q1 LMQ644A2-Q1 Short-Circuit
Protection

V_OUT = 3.3 V	F_SW = 400 kHz	Auto mode
I_OUT = 0 A to Short Circuit	V_IN = 13.5 V	Single Output

Figure 8-41 Short-Circuit Protection

LMQ64480-Q1 LMQ644A0-Q1 LMQ644A2-Q1 Short-Circuit
Hiccup

V_OUT = 3.3 V	F_SW = 400 kHz	Auto mode
I_OUT = Short Circuit to 0 A	V_IN = 13.5 V	Single Output

Figure 8-43 Short-Circuit Hiccup

LMQ64480-Q1 LMQ644A0-Q1 LMQ644A2-Q1 Load
Transient

V_OUT = 5 V	F_SW = 2.1 MHz	FPWM mode
I_OUT = 100 mA to 6 A to 100 mA	V_IN = 13.5 V	Dual Output

Figure 8-45 Load Transient

V_OUT = 5 V	F_SW = 400 kHz	Auto mode
I_OUT = 100 mA to 6 A to 100 mA	V_IN = 13.5 V	Dual Output

Figure 8-47 Load Transient

V_OUT = 3.3 V	F_SW = 2.1 MHz	FPWM mode
I_OUT = 100 mA to 6 A to 100 mA	V_IN = 13.5 V	Dual Output

Figure 8-49 Load Transient

V_OUT = 3.3 V	F_SW = 2.1 MHz	FPWM mode
I_OUT = 3 A to 6 A to 3 A	V_IN = 13.5 V	Dual Output

Figure 8-51 Load Transient

V_OUT = 3.3 V	F_SW = 400 kHz	Auto mode
I_OUT = 100 mA to 6 A to 100 mA	V_IN = 13.5 V	Dual Output

Figure 8-53 Load Transient

V_OUT = 3.3 V	F_SW = 400 kHz	FPWM mode
I_OUT = 4 A to 12 A to 4 A	V_IN = 13.5 V	Single Output

Figure 8-55 Load Transient

LMQ64480-Q1 LMQ644A0-Q1 LMQ644A2-Q1 Single Output
Monopole Radiated Emissions versus CISPR25 Class 5 Limits (Orange: Peak Signal, Red:
Average Signal, Green: Quasi-Peak Signal)

V_OUT = 3.3 V	F_SW = 2100 kHz	I_OUT = 12 A
Frequency Tested: 150 kHz to 30 MHz

Figure 8-57 Single Output Monopole Radiated Emissions versus CISPR25 Class 5 Limits (Orange: Peak Signal, Red: Average Signal, Green: Quasi-Peak Signal)

LMQ64480-Q1 LMQ644A0-Q1 LMQ644A2-Q1 Single Output
Log Radiated Emissions versus CISPR25 Class 5 Limits (Orange: Peak Signal, Red: Average
Signal, Green: Quasi-Peak Signal)

V_OUT = 3.3 V	F_SW = 2100 kHz	I_OUT = 12 A
Frequency Tested: 200 MHz to 1000 MHz

Figure 8-59 Single Output Log Radiated Emissions versus CISPR25 Class 5 Limits (Orange: Peak Signal, Red: Average Signal, Green: Quasi-Peak Signal)

LMQ64480-Q1 LMQ644A0-Q1 LMQ644A2-Q1 Single Output
Conducted Emissions versus CISPR25 Class 5 Limits (Orange: Peak Signal, Red: Average
Signal, Green: Quasi-Peak Signal)

V_OUT = 3.3 V	F_SW = 2100 kHz	I_OUT = 12 A
Frequency Tested: 150 kHz to 30 MHz

Figure 8-61 Single Output Conducted Emissions versus CISPR25 Class 5 Limits (Orange: Peak Signal, Red: Average Signal, Green: Quasi-Peak Signal)

LMQ64480-Q1 LMQ644A0-Q1 LMQ644A2-Q1 Dual Output
Monopole Radiated Emissions versus CISPR25 Class 5 Limits (Orange: Peak Signal, Red:
Average Signal, Green: Quasi-Peak Signal)

V_OUT = 3.3 V	F_SW = 2100 kHz	I_OUT = 12 A
Frequency Tested: 150 kHz to 30 MHz

Figure 8-63 Dual Output Monopole Radiated Emissions versus CISPR25 Class 5 Limits (Orange: Peak Signal, Red: Average Signal, Green: Quasi-Peak Signal)

LMQ64480-Q1 LMQ644A0-Q1 LMQ644A2-Q1 Dual Output Log Radiated Emissions versus CISPR25 Class 5
Limits (Orange: Peak Signal, Red: Average Signal, Green: Quasi-Peak Signal)

V_OUT = 3.3 V	F_SW = 2100 kHz	I_OUT = 12 A
Frequency Tested: 200 MHz to 1000 MHz

Figure 8-65 Dual Output Log Radiated Emissions versus CISPR25 Class 5 Limits (Orange: Peak Signal, Red: Average Signal, Green: Quasi-Peak Signal)

LMQ64480-Q1 LMQ644A0-Q1 LMQ644A2-Q1 Dual Output Conducted Emissions versus CISPR25 Class 5 Limits
(Orange: Peak Signal, Red: Average Signal, Green: Quasi-Peak Signal)

V_OUT = 3.3 V	F_SW = 2100 kHz	I_OUT = 12 A
Frequency Tested: 150 kHz to 30 MHz

Figure 8-67 Dual Output Conducted Emissions versus CISPR25 Class 5 Limits (Orange: Peak Signal, Red: Average Signal, Green: Quasi-Peak Signal)

LMQ64480-Q1 LMQ644A0-Q1 LMQ644A2-Q1 Recommended
Input EMI Filter

Figure 8-69 Recommended Input EMI Filter

V_OUT = 5 V

F_SW = 400 kHz

Auto mode

Single Output

Figure 8-10 Efficiency

V_OUT = 3.3 V

F_SW = 400 kHz

Auto mode

Single Output

Figure 8-12 Efficiency

V_OUT = 3.3 V

F_SW = 400 kHz

FPWM mode

Single Output

Figure 8-14 Efficiency

V_OUT = 5 V

F_SW = 2.1 MHz

Auto mode

Single Output

Figure 8-16 Efficiency

V_OUT = 3.3 V

F_SW = 2.1 MHz

Auto mode

Single Output

Figure 8-18 Efficiency

V_OUT = 3.3 V

F_SW = 2.1 MHz

FPWM mode

Single Output

Figure 8-20 Efficiency

V_OUT = 5 V

F_SW = 2.1 MHz

Auto mode

Dual Output

Figure 8-22 Efficiency

V_OUT = 3.3 V

F_SW = 2.1 MHz

Auto mode

Dual Output

Figure 8-24 Efficiency

V_OUT = 3.3 V

F_SW = 2.1 MHz

FPWM mode

Dual Output

Figure 8-26 Efficiency

V_OUT = 3.3 V

F_SW = 2.1 MHz

Auto mode

Single Output

Figure 8-28 Load and Line Regulation

V_OUT = 3.3 V

F_SW = 2.1 MHz

Auto mode

Dual Output

Figure 8-30 Load and Line Regulation

V_OUT = 5 V

F_SW = 2.1 MHz

Auto mode

Dual Output

Figure 8-32 Load and Line Regulation

V_OUT = 5 V

F_SW = 2.1 MHz

FPWM mode

Single Output

Figure 8-34 Dropout

V_OUT = 3.3 V

F_SW = 2.1 MHz

FPWM mode

Single Output

Figure 8-36 Dropout

V_OUT = 5 V	F_SW = 400 kHz	FPWM mode
I_OUT = 100 mA	V_IN = 13.5 V	Dual Output

Figure 8-38 Start-Up With 100-mA Load

LMQ64480-Q1 LMQ644A0-Q1 LMQ644A2-Q1 Start-Up With
12-A Load

V_OUT = 3.3 V	F_SW = 400 kHz	FPWM mode
I_OUT = 12 A	V_IN = 13.5 V	Single Output

Figure 8-40 Start-Up With 12-A Load

V_OUT1 = 3.3 V	F_SW = 400 kHz	Auto mode
I_OUT = 0 A to Short Circuit	V_IN = 13.5 V	Dual Output

Figure 8-42 Short-Circuit Protection

V_OUT = 3.3 V	F_SW = 400 kHz	Auto mode
I_OUT = Short Circuit to 0 A	V_IN = 13.5 V	Dual Output

Figure 8-44 Short-Circuit Hiccup

V_OUT = 5 V	F_SW = 400 kHz	FPWM mode
I_OUT = 100 mA to 6 A to 100 mA	V_IN = 13.5 V	Dual Output

Figure 8-46 Load Transient

V_OUT = 5 V	F_SW = 400 kHz	FPWM mode
I_OUT = 3 A to 6 A to 3 A	V_IN = 13.5 V	Dual Output

Figure 8-48 Load Transient

V_OUT = 3.3 V	F_SW = 2.1 MHz	Auto mode
I_OUT = 100 mA to 6 A to 100 mA	V_IN = 13.5 V	Dual Output

Figure 8-50 Load Transient

V_OUT = 3.3 V	F_SW = 400 kHz	FPWM mode
I_OUT = 100 mA to 6 A to 100 mA	V_IN = 13.5 V	Dual Output

Figure 8-52 Load Transient

V_OUT = 3.3 V	F_SW = 400 kHz	FPWM mode
I_OUT = 3 A to 6 A to 3 A	V_IN = 13.5 V	Dual Output

Figure 8-54 Load Transient

V_OUT = 3.3 V	F_SW = 400 kHz	FPWM mode
I_OUT = 6 A to 12 A to 4 A	V_IN = 13.5 V	Single Output

Figure 8-56 Load Transient

LMQ64480-Q1 LMQ644A0-Q1 LMQ644A2-Q1 Single Output
Bicon Radiated Emissions versus CISPR25 Class 5 Limits (Orange: Peak Signal, Red:
Average Signal, Green: Quasi-Peak Signal)

V_OUT = 3.3 V	F_SW = 2100 kHz	I_OUT = 12 A
Frequency Tested: 30 MHz to 200 MHz

Figure 8-58 Single Output Bicon Radiated Emissions versus CISPR25 Class 5 Limits (Orange: Peak Signal, Red: Average Signal, Green: Quasi-Peak Signal)

LMQ64480-Q1 LMQ644A0-Q1 LMQ644A2-Q1 Single Output
Horn Radiated Emissions versus CISPR25 Class 5 Limits (Orange: Peak Signal, Red: Average
Signal, Green: Quasi-Peak Signal)

V_OUT = 3.3 V	F_SW = 2100 kHz	I_OUT = 12 A
Frequency Tested: 1000 MHz to 2500 MHz

Figure 8-60 Single Output Horn Radiated Emissions versus CISPR25 Class 5 Limits (Orange: Peak Signal, Red: Average Signal, Green: Quasi-Peak Signal)

V_OUT = 3.3 V	F_SW = 2100 kHz	I_OUT = 12 A
Frequency Tested: 30 MHz to 108 MHz

Figure 8-62 Single Output Conducted Emissions versus CISPR25 Class 5 Limits (Orange: Peak Signal, Red: Average Signal, Green: Quasi-Peak Signal)

LMQ64480-Q1 LMQ644A0-Q1 LMQ644A2-Q1 Dual Output Bicon Radiated Emissions versus CISPR25 Class 5
Limits (Orange: Peak Signal, Red: Average Signal, Green: Quasi-Peak Signal)

V_OUT = 3.3 V	F_SW = 2100 kHz	I_OUT = 12 A
Frequency Tested: 30 MHz to 200 MHz

Figure 8-64 Dual Output Bicon Radiated Emissions versus CISPR25 Class 5 Limits (Orange: Peak Signal, Red: Average Signal, Green: Quasi-Peak Signal)

LMQ64480-Q1 LMQ644A0-Q1 LMQ644A2-Q1 Dual Output Horn Radiated Emissions versus CISPR25 Class 5
Limits (Orange: Peak Signal, Red: Average Signal, Green: Quasi-Peak Signal)

V_OUT = 3.3 V	F_SW = 2100 kHz	I_OUT = 12 A
Frequency Tested: 1000 MHz to 2500 MHz

Figure 8-66 Dual Output Horn Radiated Emissions versus CISPR25 Class 5 Limits (Orange: Peak Signal, Red: Average Signal, Green: Quasi-Peak Signal)

V_OUT = 3.3 V	F_SW = 2100 kHz	I_OUT = 12 A
Frequency Tested: 30 MHz to 108 MHz

Figure 8-68 Dual Output Conducted Emissions versus CISPR25 Class 5 Limits (Orange: Peak Signal, Red: Average Signal, Green: Quasi-Peak Signal)

Table 8-3 BOM for Typical Application Curves

V_OUT	FREQUENCY	R_FBB	C_OUT EACH PHASE	C_IN + C_HF EACH PHASE	L	C_FFFOR ADJUSTABLE OUTPUT
3.3 V	400 kHz	32.4 kΩ	47 + 22 µF	2 × 10 µF + 1 × 100 nF	2.8 µH	10 pF
3.3 V	2200 kHz	32.4 kΩ	47 + 22 µF	2 × 10 µF + 1 × 100 nF	1 µH	10 pF
5 V	400 kHz	19.1 kΩ	47 + 22 µF	2 × 10 µF + 1 × 100 nF	2.8 µH	10 pF
5 V	2200 kHz	19.1 kΩ	47 + 22 µF	2 × 10 µF + 1 × 100 nF	1 µH	10 pF