BA

ΟΟST / BAΟΟSFP series

Regulator ICs

7/11

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Measurement circuits

( The C pin only exists on the BA00AST / ASFP, for the BA00AST / ASFP, place a 6.8k

Ω resistor between the OUT and

C pins, and a 2.2k

Ω resisitor between the C and pins.)

Fig.1 Measurement circuit for output voltage, input

stability, load regulation, and temperature

coefficient of output voltage

V

22

µF

OUT

GND

CTL

5V

*C

+

Fig.2 Measurement circuit for ripple rejection ratio

Ripple rejection ratio R.R. = 20 log

)

V

V

22

µF

0.33

µF

100

µF

OUT

GND

f=120Hz

10

Ω5W

5V

CTL

*C

+

Fig.3 Measurement circuit for minimum I/O

voltage differential

22

µF

0.33

µF

OUT

GND

V

5V

CTL

*C

+

Fig.4 Measurement circuit for bias current,

power save current measurement circuit

22

µF

0.33

µF

OUT

GND

A

CTL

*C

+

Fig.5 Measurement circuit for output

short-circuit current

22

µF

0.33

µF

OUT

GND

A

CTL

5V

+

*C

Fig.6

Measurement circuit for ON/OFF mode voltage,

input high level current

22

µF

0.33

µF

OUT

V

CTL

A

GND *C

+