FDMF5833 datasheet(8/25 Pages) ONSEMI

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Typical Performance Characteristics

Test Conditions: VIN=12 V, VCC=PVCC=5 V, VOUT=1.8 V, LOUT=250 nH, TA=25°C and natural convection cooling,

unless otherwise noted.

Figure 10.

Power Loss vs. Driver Supply Voltage

Figure 11.

Power Loss vs. Output Voltage

Figure 12.

Power Loss vs. Output Inductor

Figure 13.

Driver Supply Current vs. Switching

Frequency

Figure 14.

Driver Supply Current vs. Driver

Supply Voltage

Figure 15.

Driver Supply Current vs. Output Current

0.94

0.96

0.98

1.00

1.02

1.04

1.06

1.08

1.10

1.12

4.0

4.5

5.0

5.5

6.0

Driver Supply Voltage, PVCC & VCC [V]

VIN = 12V, VOUT = 1.8V, FSW = 500kHz, IOUT = 30A

0.9

1.0

1.1

1.2

1.3

1.4

1.5

1.6

0.5

1.0

1.5

2.0

2.5

3.0

3.5

Module Output Voltage, VOUT [V]

VIN = 12V, PVCC & VVCC = 5V, FSW = 500kHz, IOUT = 30A

0.986

0.988

0.990

0.992

0.994

0.996

0.998

1.000

1.002

200

250

300

350

400

450

500

Output Inductor, LOUT [nH]

VIN = 12V, PVCC & VVCC = 5V, FSW = 500kHz, VOUT = 1.8V, IOUT = 30A

0.01

0.015

0.02

0.025

0.03

0.035

0.04

0.045

200

300

400

500

600

700

800

900

1000 1100

Module Switching Frequency, FSW [kHz]

VIN = 12V, PVCC & VCC = 5V, VOUT = 1.8V, IOUT = 0A

0.016

0.018

0.02

0.022

0.024

0.026

4.0

4.5

5.0

5.5

6.0

Driver Supply Voltage, PVCC & VVCC [V]

VIN = 12V, VOUT = 1.8V, FSW = 500kHz, IOUT = 0A

0.90

0.92

0.94

0.96

0.98

1.00

1.02

1.04

1.06

Module Output Current, IOUT [A]

FSW = 300kHz

FSW = 1000kHz

VIN = 12V, PVCC & VVCC = 5V, VOUT = 1.8V

FDMF5833 Datasheet(PDF) 8 Page - ON Semiconductor

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