LM46000PWPR datasheet(36/56 Pages) TI2

36 / 56 page

Time (200 µs/DIV)

VDROP_ON_0.75Ÿ_LOAD

(500 mV/DIV)

VOUT (200 mV/DIV)

IL (500 mA/DIV)

0.1

0.2

0.3

0.4

0.5

0.6

100

110

120

Temperature (

ƒC)

R,JA = 10

ƒC/W

R,JA = 20

ƒC/W

R,JA = 30

ƒC/W

C001

4.80

4.85

4.90

4.95

5.00

5.05

5.10

5.15

0.001

0.01

0.1

Load Current (A)

VIN = 8V

VIN = 12V

VIN = 18V

VIN = 24V

VIN = 28V

VIN = 36V

VIN = 42V

VIN = 48V

VIN = 60V

C014

4.0

4.2

4.4

4.6

4.8

5.0

5.2

5.0

5.2

5.4

5.6

5.8

6.0

VIN (V)

Load = 0.2A

Load = 0.3A

Load = 0.4A

Load = 0.5A

C024

100

0.001

0.01

0.1

Load Current (A)

VIN = 8V

VIN = 12V

VIN = 18V

VIN = 24V

VIN = 28V

VIN = 36V

VIN = 42V

VIN = 48V

VIN = 60V

C004

CBOOT

VCC

BIAS

LM46000

VOUT

RFBT

RFBB

CBIAS

2.2 µF

1 µF

0.47 µF

L=100 µH

150 µF

68 pF

1 M

249

CFF

COUT

CBOOT

CVCC

200

VOUT = 5 V FS = 200 kHz

LM46000

SNVSA45B – JUNE 2014 – REVISED MARCH 2018

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Product Folder Links: LM46000

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See 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 = 5 V

FS = 200 kHz

VIN = 24 V

Figure 59. BOM for VOUT = 5 V, FS = 200 kHz

VOUT = 5 V

FS = 200 kHz

Figure 60. Efficiency

VOUT = 5 V

FS = 200 kHz

Figure 61. Output Voltage Regulation

VOUT = 5 V

FS = 200 kHz

Figure 62. Dropout Curve

VOUT = 5 V

FS = 200 kHz

VIN = 24 V

Figure 63. Load Transient Between 0.05 A and 0.5A

VOUT = 5 V

FS = 200 kHz

VIN = 24 V

Figure 64. Derating Curve

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