LM43601PWPR datasheet(39/57 Pages) TI2

39 / 57 page

ILOAD (1 A/DIV)

VOUT (500 mV/DIV)

IL (1 A/DIV)

Time (200 µs/DIV)

0.2

0.4

0.6

0.8

1.2

100

110

120

Temperature (

ƒC)

R,JA = 10

ƒC/W

R,JA = 20

ƒC/W

R,JA = 30

ƒC/W

C001

11.0

11.2

11.4

11.6

11.8

12.0

12.2

12.4

12.0

12.5

13.0

13.5

14.0

VIN (V)

Load = 0.25A

Load = 0.5A

Load = 0.75A

Load = 1A

C027

11.5

11.6

11.7

11.8

11.9

12.0

12.1

12.2

12.3

12.4

12.5

0.001

0.010

0.100

1.000

Load Current (A)

VIN = 24V

VIN = 28V

VIN = 36V

C017

100

0.001

0.010

0.100

1.000

Load Current (A)

VIN = 24V

VIN = 28V

VIN = 36V

C007

CBOOT

VCC

BIAS

LM43601

VOUT

RFBT

RFBB

CBIAS

2.2 µF

1 µF

0.47 µF

L=47 µH

22 µF

47 pF

1 M

90.9

CFF

COUT

CBOOT

CVCC

VOUT = 12 V FS = 500 kHz

LM43601

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SNVSA44B – AUGUST 2014 – REVISED JANUARY 2018

Product Folder Links: LM43601

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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 = 12 V

FS = 500 kHz

VIN = 24 V

Figure 83. BOM for VOUT = 12 V FS = 500 kHz

VOUT = 12 V

FS = 500 kHz

Figure 84. Efficiency

VOUT = 12 V

FS = 500 kHz

Figure 85. Output Voltage Regulation

VOUT = 12 V

FS = 500 kHz

Figure 86. Dropout Curve

VOUT = 12 V

FS = 500 kHz

VIN = 24 V

Figure 87. Load Transient Between 0.1 A and 1 A

VOUT = 12 V

FS = 500 kHz

VIN = 24 V

Figure 88. Derating Curve

LM43601PWPR Datasheet(PDF) 39 Page - Texas Instruments

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