NJM2890R3333 Просмотр технического описания (PDF) - Japan Radio Corporation

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NJM2890R3333

2ch LOW DROPOUT VOLTAGE REGULATOR

Japan Radio Corporation  

2 In use of ON/OFF CONTROL:

R

(0∼300kΩ)

VIN1

0.1µF

NJM2890

CONTROL

NOISE

BYPASS1

Cp=0.01µF

VIN1

VOUT1

NJM2890

GND

GND

1.0µF*3

VOUT1

VIN2

0.1µF

R

(0∼300kΩ)

*3 Vo≤2.6V version: Co=2.2µF

State of control terminal:

•“H”→ output is enabled.

• “L” or “open” → output is disabled.

VIN2

VOUT2

NOISE

CONTROL BYPASS2

1.0µF*3

Cp=0.01µF

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 0.01µF greater to avoid the problem.

VOUT2

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