MB3891 View Datasheet(PDF) - Fujitsu

Part Name

Description

Manufacturer

MB3891

Power Management IC for GSM Mobile Phone

Fujitsu 

MB3891

Parameter

Symbol Pin No.

(Ta = +25 °C, VBAT1 to VBAT4 = VCC-VSIM = 3.6 V)

Conditions

Value

Unit

Min. Typ. Max.

Ripple rejection

∆VCC-VSIM/

R.R

∆VSIMOUT

29 f = 217 Hz

30



 dB

IO

Output current

IO

VSIMOUT

chargepump

GND current at

no load

IGND

29

3.1 V < VCC-VSIM < 5.5 V,

VSIMOUT = 5 V

10

29

3.1 V < VCC-VSIM < 5.5 V,

VSIMOUT = 3 V

6

32 VSIMOUT > −50 µA





 mA



 mA

 100 µA

Efficiency at

max. load

η

25, 29

VSIMOUT = −10 mA,

VSIMOUT = 5 V

85





%

Output ripple

voltage

VRP

29

f = 10 Hz to 1 MHz,

VSIMOUT = 10 µF





100 mVPP

Shutdown sup-

ply current

ILDO

25 VSIM-ON = “L”



 100 nA

VIH

33, 34,

35



Input voltage

GSM/SIM

logic level

VIL

33, 34,

35



translation

µp interface

VOH

35 µP-IO (max.) = −20 µA

Output voltage

VOL

35 µP-IO (max.) = 1 mA

0.7 ×

OUT1



OUT1 V

0



0.3 ×

OUT1

V

0.8 ×

OUT1



OUT1 V

0



0.2 ×

OUT1

V

(Continued)

11

Share Link: