LM46000PWPR datasheet(39/56 Pages) TI1

39 / 56 page

PGOOD (2 V/DIV)

VOUT (2 V/DIV)

IL (250 mA/DIV)

Time (2 ms/DIV)

PGOOD (2 V/DIV)

VOUT (2 V/DIV)

IL (100 mA/DIV)

Time (2 ms/DIV)

SW (10 V/DIV)

VOUT (5 mV/DIV)

IL (500 mA/DIV)

Time (500 µs/DIV)

PGOOD (2 V/DIV)

VOUT (2 V/DIV)

IL (500 mA/DIV)

Time (2 ms/DIV)

SW (10 V/DIV)

VOUT (5 mV/DIV)

IL (500 mA/DIV)

Time (2 µs/DIV)

SW (10 V/DIV)

VOUT (5 mV/DIV)

IL (500 mA/DIV)

Time (2 µs/DIV)

LM46000

www.ti.com

SNVSA45A – JUNE 2014 – REVISED JULY 2014

Please refer to Table 2 for Bill of materials for each VOUT and FS combination. Unless otherwise stated, application

performance curves were taken at TA = 25 °C.

VOUT = 3.3 V

FS = 500 kHz

IOUT = 0.5A

VOUT = 3.3 V

FS = 500 kHz

IOUT = 40 mA

Figure 89. Switching Waveform in CCM Operation

Figure 90. Switching Waveform in DCM Operation

VOUT = 3.3 V

FS = 500 kHz

IOUT = 0 mA

VIN = 24 V

VOUT = 3.3 V

RLOAD = 6.6 Ω

Figure 91. Switching Waveform in PFM Operation

Figure 92. Startup Into Full Load with Internal Soft-Start

Rate

VIN = 24 V

VOUT = 3.3 V

RLOAD = 13.2 Ω

VIN = 24 V

VOUT = 3.3 V

RLOAD = 33 Ω

Figure 93. Startup Into Half Load with Internal Soft-Start

Figure 94. Startup Into 100 mA with Internal Soft-Start Rate

Rate

Submit Documentation Feedback

Product Folder Links: LM46000

LM46000PWPR Datasheet(PDF) 39 Page - Texas Instruments

LM46000PWPR Datasheet(HTML) 39 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56

Datasheet Download

Link URL