BD9329AEFJ-E2 Ver la hoja de datos (PDF) - ROHM Semiconductor

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Fabricante

BD9329AEFJ-E2

Simple Step-down Switching Regulator with Built-in Power MOSFET

ROHM Semiconductor 

BD9329AEFJ

Technical Note

VOUT

VOUT-MAX: +48mV

VOUT-MIN: -22m V

VOUT: 50 mV / Div

IOUT

IOUT: 1.0 A / Div

VOUT

Δ: 28.4 mV

VOUT: 10.0 mV / Div

IOUT: 1.0 A / Div

IOUT

Fig.13 Transient Response

(VIN= 12V VOUT= 3.3V L= 10µH Cout =22µF Iout= 0.2-1.0A )

Fig.14 Output Ripple Voltage

(VIN= 12V VOUT= 3.3V L= 10µH Cout =22µF I out= 1.0A )

VOUT

VOUT-MAX: +120mV

VOUT-MIN: -42mV

VOUT: 100 mV / Div

IOUT

IOUT: 1.0 A / Div

VOUT

Δ:28.8 mV

IOUT

VOUT: 10.0 mV / Div

IOUT: 1.0 A / Div

Fig.15 Transient Response

(VIN= 12V VOUT= 3.3V L= 10µH Cout =22µF Iout= 0.2-3.0A)

EN

VOUT

TSS

22ms

Fig.16 Output Ripple Voltage

(VIN= 12V VOUT= 3.3V L= 10µH Cout =22µF I out= ３.0A )

EN: 10V / Div

VOUT: 1.0V / Div

IOUT

IOUT: 1.0 A / Div

Fig.17 Start Up waveform

(VIN= 12V VOUT= 3.3V L= 10µH CSS= 0.1µF)

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7/15

2011.02 - Rev.A

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