Unless otherwise specified the following conditions apply: V_IN = 12 V, T_A = 25°C. The circuit is shown in Figure 9-31, with the appropriate BOM from Table 9-3 or Table 9-4.

VOUT = 5 V

400 kHz

DDA Package

Figure 9-7 Efficiency

VOUT = 5 V

1.4 MHz

DDA Package

Figure 9-9 Efficiency

VOUT = 5 V

2.1 MHz

DDA Package

Figure 9-11 Efficiency

VOUT = 5 V

400 kHz

RNX Package

Figure 9-13 Efficiency

VOUT = 5 V

1.4 MHz

RNX Package

Figure 9-15 Efficiency

VOUT = 5 V

2.1 MHz

RNX Package

Figure 9-17 Efficiency

VOUT = 5 V

Figure 9-19 Line and Load Regulation

VOUT = 5 V

ƒSW = 400 kHz

Figure 9-21 Mode Change Thresholds

VIN = 12 V		VOUT = 5 V
tf = tr = 2 µs	IOUT = 0 A to 3 A

Figure 9-23 Load Transient

VOUT = 3.3 V

Figure 9-25 Line and Load Regulation

VOUT = 3.3 V

ƒSW = 400 kHz

Figure 9-27 Mode Change Thresholds

VIN = 12 V		VOUT = 3.3 V
tf = tr = 2 µs	IOUT = 0 A to 3 A

Figure 9-29 Load Transient

VOUT = 3.3 V

400 kHz

DDA Package

Figure 9-8 Efficiency

VOUT = 3.3 V

1.4 MHz

DDA Package

Figure 9-10 Efficiency

VOUT = 3.3 V

2.1 MHz

DDA Package

Figure 9-12 Efficiency

VOUT = 3.3 V

400 kHz

RNX Package

Figure 9-14 Efficiency

VOUT = 3.3 V

1.4 MHz

RNX Package

Figure 9-16 Efficiency

VOUT = 3.3 V

2.1 MHz

RNX Package

Figure 9-18 Efficiency

VOUT = 5 V

IOUT = 0 A

RFBT = 1 MΩ

Figure 9-20 Input Supply Current

VOUT = 5 V

ƒSW = 400 kHz

Figure 9-22 Switching Frequency versus Output Current

VIN = 12 V		VOUT = 5 V
tf = tr = 2 µs	IOUT = 1 A to 3 A

Figure 9-24 Load Transient

VOUT = 3.3 V

IOUT = 0 A

RFBT = 1 MΩ

Figure 9-26 Input Supply Current

VOUT = 3.3 V

ƒSW = 400 kHz

Figure 9-28 Switching Frequency versus Output Current

VIN = 12 V	VOUT = 3.3V	IOUT = 1 A to 3 A
tf = tr = 2 µs

Figure 9-30 Load Transient

Figure 9-31 Circuit for Application Curves

The values in this table were selected to enhance certain performance criteria and may not represent typical values.