ADP3522_15 datasheet(4/20 Pages) AD

Part #	ADP3522

Description	GSM Power Management System

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Manufacturer	AD [Analog Devices]

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REV. 0

–4–

ADP3522

ELECTRICAL CHARACTERISTICS1

(–20 C < TA < +85 C, VBAT = VBAT2 = 3 V–5.5 V, CVSIM = CVCORE = CVAN = CVMEM =

2.2

F, VTCXO = 0.22

F, CVRTC = 0.1

F, CVBAT = 10

F, minimum loads applied on

all outputs, unless otherwise noted.)

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

TCXO LDO (VTCXO)

Output Voltage

VTCXO

Line, Load, Temperature

2.711

2.75

2.789

V

Line Regulation

VTCXO

2

mV

Load Regulation

VTCXO

50

µA ≤ I

LOAD

≤ 20 mA,

2

mV

VBAT = 3.6 V

Output Capacitor Required for

CO

0.22

µF

Stability

Dropout Voltage

VDO

VO = VINITIAL – 100 mV

160

300

mV

ILOAD = 20 mA

Ripple Rejection

VBAT/

f = 217 Hz (t = 4.6 ms)

65

dB

VTCXO

VBAT = 3.6 V

Output Noise Voltage

VNOISE

f = 10 Hz to 100 kHz

80

µV rms

ILOAD = 20 mA, VBAT = 3.6 V

MEMORY LDO (VMEM)

Output Voltage-3

VMEM

Line, Load, Temperature

2.740

2.80

2.850

V

Output Voltage-1.8

VMEM

Line, Load, Temperature

1.80

1.85

1.90

V

Line Regulation

VMEM

2

mV

Load Regulation

VMEM

50

µA < I

LOAD < 150 mA

12

mV

VBAT = 3.6 V

Output Capacitor Required for

CO

2.2

µF

Stability

Dropout Voltage-3

VO = VINITIAL – 100 mV

160

360

mV

ILOAD = 150 mA

REFOUT

Output Voltage

VREFOUT

Line, Load, Temperature

1.19

1.21

1.23

V

Line Regulation

VREFOUT

Min Load

0.2

mV

Load Regulation

VREFOUT

0

µA < I

LOAD < 50

µA

0.5

mV

VBAT = 3.6 V

Ripple Rejection

VBAT/

f = 217 Hz (t = 4.6 ms)

65

75

dB

VREFOUT

Maximum Capacitive Load

CO

100

pF

Output Noise Voltage

VNOISE

f = 10 Hz to 100 kHz

40

µV rms

RESET GENERATOR (

RESET)

Output High Voltage

VOH

IOH = +500

µAVMEM – 0.25

V

Output Low Voltage

VOL

IOL = –500

µA0.25

V

Output Current

IOL/IOH

VOL= 0.25 V,

1

mA

VOH = VMEM – 0.25 V

Delay Time per Unit Capacitance

tD

0.6

1.2

2.4

ms/nF

Applied to RESCAP Pin

BATTERY VOLTAGE DIVIDER

Divider Ratio

BATSNS/

TCXOEN = High

2.32

2.35

2.37

MVBAT

Divider Impedance at MVBAT

ZO

59.5

85

110

k

Divider Leakage Current

TCXOEN = Low

1

µA

Divider Resistance

TCXOEN = High

215

300

385

k

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