0

20

40

60

80

VIN (V)

0

50

100

150

200

250

300

350

0

20

40

60

80

VIN (V)

700

600

500

400

300

0

200

400

600

800

_ 1000

0

20

40

60

80

_

100

LOAD CURRENT (mA)

VIN = 15V

24V

48V

75V

IOUT = 300mA

VIN (V)

0

20

40

60

80

0

20

40

60

80

100

21

LM5010

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SNVS307G – SEPTEMBER 2004 – REVISED APRIL 2016

Product Folder Links: LM5010

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Copyright © 2004–2016, Texas Instruments Incorporated

8.2.3 Application Curves

Figure 14. Efficiency vs VIN

Figure 15. Efficiency vs Load Current and VIN

Figure 16. Output Voltage Ripple vs VIN

Figure 17. Frequency vs VIN

8.3 Do's and Don'ts

A minimum load current of 1 mA is required to maintain proper operation. If the load current falls below that level,

the bootstrap capacitor can discharge during the long OFF-time and the circuit either shuts down or cycles ON

and OFF at a low frequency. If the load current is expected to drop below 1 mA in the application, choose the

feedback resistors to be low enough in value to provide the minimum required current at nominal VOUT.