MB3788 Просмотр технического описания (PDF) - Fujitsu

Номер в каталоге

Компоненты Описание

производитель

MB3788

SWITCHING REGULATOR CONTROLLER

Fujitsu 

MB3788

7. Duty - input oscillating frequency characteristic

100

Input waveform

80

1.9V

1.3V

VCC = 6 V

VFB = 1.6 V

TA = +25°C

60

Duty

Dtr (%)

40

8.Gain - frequency characteristic and phase - frequency

characteristic

40

TA = +25°C 180

20

Gain

(dB)

0

90

Phase

0 φ (deg)

20

0

05 K10 K50 K100 K500 K1 M

Input oscillating frequency (Hz)

-20

-40

1 K 10 K100 K1 M5 M10 M

f (Hz)

-90

-180

9. Power dissipation - ambient temperature characteristic

1000

800

Circuit for measuring gain - frequency characteristic and

phase - frequency characteristic

2.5 V 2.5 V

VCC = 6 V

240 kΩ

Power 600

dissipation

PD (mW)

400

200

4.7 kΩ 4.7 kΩ

10 µF

in - +

4.7 kΩ 4.7 kΩ

-

out

+

Error amplifier

0

-20 020 4060 80 100

Ambient temperature TA (°C)

11

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