38

AN30183A

Ver. AEB

2.4V

2.2V

2.1V

NM

PS

NM

NM

PS

NM

ADDRESS:04h

DATA:61h

00h

18h

NM

05h

02h

05h

00h

00h

10h

05h

01h

05h

00h

NM

PS

NM

00h

19h

00h

3Dh

05h

09h

05h

00h

00h

18h

NM

PS

NM

NM

NM

PS

NM

05h

04h

00h

00h

01h

xxh

02h

xxh

03h

xxh

Initial Setting

Control Resistor

@ 150

μs

REGCNT

(External input signal)

VBAT

RESET

DVDD

(External input signal)

VREG

(IC output signal)

REGW

(IC inner signal)

(External input signal)

VLDO3

(IC output signal)

Pin LDO1 starts

Pin LDO1 stops

DCDC1

(IC output signal)

All LDOs can also be stopped

in PS Mode

VLDO4

(IC output signal)

I2C starts

I2C stops

VLDO2

(IC output signal)

Pin REGCNT starts

I2C starts

I2C stops

Pin REGCNT stops

LDO1ON

(External input signal)

VLDO1

(IC output signal)

Pin REGCNT stops

I2C starts

I2C stops

Pin REGCNT starts

I2C starts

I2C stops

I2C stops

I2C starts

Note) The characteristics listed below are reference values derived from the design of the IC and are not guaranteed.

OPERATION ( Continued )

4. Timing Chart (Sequence – 4 (LDO2/3 are controlled by REGCNT))