MCP16323(2011) 查看數據表（PDF） - Microchip Technology

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MCP16323
(Rev.:2011)

18V Input, 3A Output, High Efficiency Synchronous Buck Regulator with Power Good Indication

Microchip Technology 

MCP16323

Note: Unless otherwise indicated, VIN = 12V, EN = Floating (internally pulled up), CIN = 20 µF, COUT = 2x22 µF,

L = 4.7 µH, ILOAD = 200 mA, TA = +25°C.

30

Typical Minimum Duty Cycle = 7%

25

20

15

10

5

0

0.9

1.2

1.5

1.8

2.1

VOUT (V)

FIGURE 2-25:

Maximum VIN to VOUT Ratio

for Continuous Switching.

VOUT = 3.3V

IOUT = 200 mA

VIN = 12V

FIGURE 2-28:

Startup From Enable.

VOUT = 3.3V

IOUT = 50 mA

VIN = 12V

VOUT = 3.3V

IOUT = 200 mA

VIN = 12V

FIGURE 2-26:

Waveforms.

VOUT = 3.3V

IOUT = 500 mA

VIN = 12V

Light Load Switching

FIGURE 2-29:

Startup From VIN.

VOUT = 3.3V

IOUT = 100 mA to 600 mA

VIN = 12V

FIGURE 2-27:

Waveforms.

Heavy Load Switching

FIGURE 2-30:

Load Transient Response.

© 2011 Microchip Technology Inc.

DS22284A-page 11

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