Mb3891 – FUJITSU MB3891 User Manual

Page 8

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background image

MB3891

8

(Ta

=

+

25

°

C, VBAT1 to VBAT4

=

VCC-VSIM

=

3.6 V)

(Continued)

Parameter

Symbol

Pin

No.

Conditions

Value

Unit

Min.

Typ.

Max.

LDO1

(OUT1)

Output voltage

V

O

12, 13

50

µ

A

>

OUT1

>

120 mA 2.000 2.100 2.200

V

Line regulation

Line

12, 13 3.1 V < VBAT1 < 5.5 V

10

mV

Load reguration

Load

12, 13

50

µ

A

>

OUT1

>

120 mA

30

mV

Ripple rejection

VBAT1/

OUT1

R.R

12, 13 f

=

217 Hz

45

dB

Dropout voltage

V

DO

12, 13 OUT1

=

120 mA

500

mV

GND current at low load

I

GND

19

OUT1

>

1 mA

30

µ

A

GND current at max. load

I

GND

19

OUT1

=

120 mA

2

mA

Output noise volt. (RMS)

V

NOVL

12, 13

f

=

10 Hz to 1 MHz,

OUT1

=

1

µ

F

500

µ

V

XPOWER-

GOOD

(RESET)

Output voltage

V

OH

17

0.8

×

OUT1

OUT1

V

V

OL

17

0

0.1

×

OUT1

V

Hold time

T

XPG

17

DELAYCAP

=

0.033

µ

F

10

25

40

ms

LDO2

(OUT2)

Output voltage

V

O

6, 7

50

µ

A

>

OUT2

>

50 mA 2.700 2.800 2.900

V

Line regulation

Line

6, 7

3.1 V < VBAT1 < 5.5 V

10

mV

Load regulation

Load

6, 7

50

µ

A

>

OUT2

>

50 mA

30

mV

Ripple rejection

VBAT1/

OUT2

R.R

6, 7

f

=

217 Hz

45

dB

Dropout voltage

V

DO

6, 7

OUT2

=

50 mA

250

mV

GND current at low load

I

GND

19

OUT2

>

1 mA

30

µ

A

GND current at max. load

I

GND

19

OUT2

=

50 mA

1

mA

Output noise volt. (RMS)

V

NOVL

6, 7

f

=

10 Hz to 1 MHz,

OUT2

=

1

µ

F

350

µ

V

General

purpose

switches

Input/Output resistance

R

SW1

45, 46

SW1-INPUT

=

2.8 V

(Gate/Source

=

2.8 V)

4.0

R

SW2

51, 52

SW2-INPUT

=

2.8 V

(Gate/Source

=

2.8 V)

7.0

R

SW3

47, 48

SW3-INPUT

=

2.8 V

(Gate/Source

=

2.8 V)

7.0

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