[AP1150ADSXX]

014011331-E-00

- 12 -

2014/10

The input capacitor is necessary when the battery is discharged, the power supply impedance increases, or

the line distance to the power supply is long. This capacitor might be necessary on each individual IC even if

two or more regulator ICs are used. It is not possible to determine this indiscriminately. Please confirm the

stability while mounted. The IC provides stable operation with an output side capacitor of

0.1F (Vout2.0V). If it is 0.1F or more over the full range of temperature, either a ceramic capacitor or

tantalum capacitor can be used without considering ESR.

C

0.1

F

C

0.1

F

C

Figure 2. Recommended components values

100

10

1

0.1

0.01

150

0

50

100

I

Stable area

C

100

10

1

0.1

0.01

150

0

50

100

I

Stable area

C

100

10

1

0.1

0.01

150

0

50

100

I

Stable area

C

100

10

1

0.1

0.01

150

0

50

100

I

Stable area

C

100

10

1

0.1

0.01

150

0

50

100

I

Stable area

C

All stable: CL0.22F All stable: CL0.1F

Figure 3. Stable operation area vs. voltage, current, and ESR

Note 6. Please increase the output capacitor value when the load current is 0.5 mA or less. The stability of the

regulator improves if a big output side capacitor is used (the stable operation area extends.)