Fujitsu MB3891 manual Parameter Symbol Pin No Conditions Value Unit Min Typ Max

MB3891

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

Parameter		Symbol	Pin No.	Conditions		Value		Unit
					Min.	Typ.	Max.
	Ripple rejection
	ΔVCC-VSIM/	R.R	29	f = 217 Hz	30			dB
	ΔVSIMOUT
		IO	29	3.1 V < VCC-VSIM < 5.5 V,	10			mA
				VSIMOUT = 5 V
	Output current
		IO	29	3.1 V < VCC-VSIM < 5.5 V,	6			mA
				VSIMOUT = 3 V
VSIMOUT
	GND current at			VSIMOUT > −50 ∝A				∝A
chargepump		IGND	32				100
	no load
	Efficiency at	η	25, 29	VSIMOUT = −10 mA,	85			%
	max. load			VSIMOUT = 5 V
	Output ripple	VRP	29	f = 10 Hz to 1 MHz,			100	mVPP
	voltage			VSIMOUT = 10 ∝F
	Shutdown sup-	ILDO	25	VSIM-ON = “L”			100	nA
	ply current
		VIH	33, 34,		0.7 ⋅		OUT1	V
			35		OUT1
	Input voltage
GSM/SIM		VIL	33, 34,		0		0.3 ⋅	V
			35				OUT1
logic level
translation		VOH	35	∝P-IO (max.) = −20 ∝A	0.8 ⋅		OUT1	V
∝p interface					OUT1
	Output voltage
		VOL	35	∝P-IO (max.) = 1 mA	0		0.2 ⋅	V
							OUT1
							(Continued)

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