Diodes AP3407/A Manual do Utilizador descarregar pdf (Página 6)

Data Sheet

1.2A, 1.4MHz High Efficiency Synchronous DC-DC Buck Converter AP3407/A

Dec. 2011 Rev. 1. 3 BCD Semiconductor Manufacturing Limited

23456

Efficiency (%)

Input Voltage (V)

OUT

=2.5V

OUT

=0.5A

OUT

=1.0A

200 400 600 800 1000 1200

2.47

2.48

2.49

2.50

2.51

Output Voltage (V)

Output Current (mA)

=3.3V

OUT

=2.5V

200 400 600 800 1000 1200

100

Efficiency (%)

Output Current (mA)

=3.3V

OUT

=2.5V

Typical Performance Characteristics

Figure 4. Efficiency vs. Output Current

Figure 5. Efficiency vs. Input Voltage

Figure 6. Output Voltage vs. Output Current Figure 7. Frequency vs. Input Voltage

2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5

1.3

1.4

1.5

1.6

1.7

1.8

Frequency (MHz)

Input Voltage (V)

OUT

=300mA

1 2 3 4 5 6 7 8 9 10 11

Electrical Characteristics 5
6
DS (ON)_LOW 8
AP3407/A-ADJ 9

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