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29.Nov.2013 Rev.003

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TSZ22111・15・001

BD4275FP2-C

BD4275FPJ-C

Datasheet

TSZ02201-0T2T0AN00110-1-2

Selection of Components Externally Connected

・VCC pin

Insert capacitors with a capacitance of 0.1

μF or higher between the VCC and GND pin. Choose the capacitance

according to the line between the power smoothing circuit and the VCC pin. Selection of the capacitance also

depends on the application. Verify the application and allow for sufficient margins in the design. We recommend

using a capacitor with excellent voltage and temperature characteristics.

・Output pin capacitor

In order to prevent oscillation, a capacitor needs to be placed between the output pin and GND pin. We recommend

using a ceramic capacitor with a capacitance of 6

μF or higher. In selecting the capacitor, ensure that the capacitance

of 6

μF or higher is maintained at the intended applied voltage and temperature range. For actual applications the

stable operating range is influenced by the PCB impedance, input supply impedance and load impedance. Therefore

verification of the final operating environment is needed.

When selecting a ceramic type capacitor, we recommend using X5R, X7R or better with excellent temperature and

DC - biasing characteristics and high voltage tolerance.

In case the application requires large capacitance for output pin, we recommend using a capacitor with a capacitance

of 13

μF or higher and ESR of 5 Ω or lower. For actual applications the stable operating range is influenced by the

PCB impedance, input supply impedance and load impedance. Therefore verification of the final operating

environment is needed. For the rapid fluctuation of input voltage and the load current, it is possible that output voltage

fluctuates. In case this fluctuation can be problematic for the application, connect low ESR capacitor (capacitance > 6

µF, ESR < 1

Ω) in paralleled to large capacitor (not low ESR).

I/O equivalence circuits

1 VCC

2 RO

4 CT

5 VO

Figure 23. I / O equivalence circuits

100

Ω (Typ)

20 k

Ω (Typ)

6

Ω (Typ)

500 k

Ω

(Typ)

1500 k

Ω

(Typ)

VCC

IC