AIC1573CS データシートの表示（PDF） - Analog Intergrations

部品番号

コンポーネント説明

メーカー

AIC1573CS

5-bit DAC, Synchronous PWM Power Regulator with Simple PWM Power Regulator, LDO And Linear Controller

Analog Intergrations 

AIC1573

n TYPICAL PERFORMANCE CHARACTERISTICS

PGOOD

SS

SS

VO U T 4

VO U T 3

VOUT2

VOUT1

VDAC=3.5V

VDAC=2V

VDAC=1.3V

Fig. 1 Soft Start Interval with 4 Outputs and PGOOD

30

90°C

25

20

-40 °C

15

22°C

10

5

0

-5 1k

10k

100k

1M

Frequency (Hz)

Fig 3. Internal Compensation Gain of PWM Error Amplifier

160

140 VCC=12V

120 CUG1=CLG1=CUG2=C

100

C=4.7nF

C=3.3nF

80

C=1.5nF

60

C=650pF

40

20

C=0

0

200k 300k 400k 500k 600k 700k 800k 900k 1M

Switching Frequency (Hz)

Fig. 5 Supply Current vs. Frequency

Fig. 2

10M

Soft Start Initiates PWM Output

RT Pull Up to 12V

1M

100k

RT Pull Down to GND

10k

1k

10k

Fig. 4

100k

1M

Switching Frequency (Hz)

RT Resistance vs. Frequency

Over Load

Applied

Inductor

Current 5A/div

SS

Fault

Fig. 6

Over Current ON Inductor

6

Share Link: