NJM2890 Ver la hoja de datos (PDF) - Japan Radio Corporation

Número de pieza

componentes Descripción

Fabricante

NJM2890

2ch LOW DROPOUT VOLTAGE REGULATOR

Japan Radio Corporation  

y In use of ON/OFF CONTROL:

NJM2890

Preliminary

R

(0∼300kΩ)

VIN1

0.1uF

CONTROL

NOISE

BYPASS1

Cp=0.01uF

VIN1

VOUT1

1.0uF

OR

2.2uF(Vo≤2.6V)

NJM2890

(Ceramic Capacitor)

GND

GND

VOUT1

VIN2

0.1uF

R

(0∼300kΩ)

VIN2

VOUT2

1.0uF

OR

2.2uF(Vo≤2.6V)

NOISE (Ceramic Capacitor)

CONTROL BYPASS2

Cp=0.01uF

VOUT2

State of control terminal:

•“H”→ output is enabled.

• “L” or “open” → output is disabled.

✱Noise bypass Capacitance Cp

Noise bypass capacitance Cp reduces noise generated by band-gap reference circuit.

Noise level and ripple rejection will be improved when larger Cp is used.

Use of smaller Cp value may cause oscillation.

Use the Cp value of 0.01uF greater to avoid the problem.

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