MAS3587F datasheet(21/82 Pages) MICRONAS

21 / 82 page

ADVANCE INFORMATION

MAS 3587F

Micronas

DCCF Register (reset = 5050hex)

DCCF

DC/DC Converter 2

bit[15]

PUP2: Voltage monitor 2 flag (readback)

bit[14:11]

Voltage between VSENS2 and DCSG2

Code

Nominal

set level

reset level

output volt. of PUP2

of PUP2

1111

3.5 V

3.4 V

3.3 V

1110

3.4 V

3.3 V

3.2 V

1101

3.3 V

3.2 V

3.1 V

1100

3.2 V

3.1 V

3.0 V

1011

3.1 V

3.0 V

2.9 V

1010

3.0 V

2.9 V

2.8 V (reset)

1001

2.9 V

2.8 V

2.7 V

1000

2.8 V

2.7 V

2.6 V

0111

2.7 V

2.6 V

2.5 V

0110

2.6 V

2.5 V

2.4 V

0101

2.5 V

2.4 V

2.3 V

0100

2.4 V

2.3 V

2.2 V

0011

2.3 V

2.2 V

2.1 V

0010

2.2 V

2.1 V

2.0 V

00011)

2.1 V

2.0 V

1.9 V

00001)

2.0 V

1.9 V

1.8 V

bit[10]

Mode

Pulse frequency modulation (PFM)

Pulse width modulation (PWM) (reset)

bit[9]

reserved, must be set to zero

bit[8]

Disable synchronized rectifier

disable synchronized recitifier

enable synchronized recitifier (reset)

The DC/DC converters are up-converters only. Thus, if the battery voltage is

higher than the selected nominal voltage, the output voltage will exceed the

nominal voltage.

1) refer to Section 4.6.2. on page 59

Table 3–3: Direct Configuration Registers

I2C Sub-

address

(hex)

Function

Name

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