ADP3502_15 datasheet(3/36 Pages) AD

Part #	ADP3502

Description	CDMA Power Management System

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REV. 0

ADP3502

–3–

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

BASEBAND AVDD MAIN-LDO (LDO2a)

Output Voltage

VLDO2a

16 Steps, 20 mV/Step, IO = 50 mA

Code: 1000

2.30

2.36

2.43

V

Code: 0111

2.60

2.66

2.74

V

TA = 25

°C

Output Default Voltage

VLDO2a

IO = 50 mA, TA = 25

°C

2.46

2.52

2.6

V

Output Voltage

VLDO2a

16 Steps, 20 mV/Step, IO = 50 mA

Code: 1000

2.29

2.36

2.47

V

Code: 0111

2.57

2.66

2.81

V

TA = –30

°C to +85°C

Output Default Voltage

VLDO2a

IO = 50 mA, TA = –30

°C to +85°C

2.42

2.52

2.66

V

Output Capacitor Required for Stability

CLDO2a

1

µF

Dropout Voltage

VDO

IO = 50 mA

210

mV

Ripple Rejection

f = 1 kHz

60

dB

Output Noise Voltage

VNOISE

f = 100 Hz to 100 kHz

120

µV rms

Start-Up Time from Shutdown

250

µs

BASEBAND AVDD SUB-LDO (LDO2b)

Output Voltage

VLDO2b

IO = 300

µA, V

LDO2MAIN = 2.6 V

2.50

2.57

2.70

V

TA = –30

°C to +85°C

REFO SWITCH

On Resistance

RON

TA = –30

°C to +85°C, I

O = 500

µA50

130

Ω

Off Leak

ILEAK

LDO2: ON, Switch: OFF

0.01

1

µA

COIN CELL MAIN-LDO (LDO3a)

Output Voltage

VLDO3a

IO = 1 mA to 50 mA

2.90

3.0

3.09

V

TA = –30

°C to +85°C

Dropout Voltage

VDO

IO = 50 mA

140

mV

Output Capacitor Required for Stability

CLDO3a

1

µF

Start-Up Time from Shutdown

250

µs

COIN CELL SUB-LDO (LDO3b)

Output Voltage

VLDO3b

IO = 1 mA

2.85

2.97

3.15

V

TA = –30

°C to +85°C

AUDIO LDO (LDO4)

Output Voltage

VLDO4

IO = 1 mA to 180 mA

2.81

2.9

2.99

V

TA = –30

°C to +85°C

Output Capacitor Required for Stability

CLDO4

2.2

µF

Dropout Voltage

VDO

IO = 180 mA

200

mV

Ripple Rejection

f = 1 kHz

60

dB

Output Noise Voltage

VNOISE

f = 100 Hz to 10 kHz

50

µV rms

Start-Up Time from Shutdown

250

µs

VIBRATOR LDO (LDO5)

Output Voltage

VLDO5

IO = 1 mA to 150 mA

2.75

2.9

3.05

V

TA = –30

°C to +85°C

Dropout Voltage

VDO

IO = 150 mA

200

mV

Output Capacitor Required for Stability

CLDO5

2.2

µF

BASEBAND CORE MAIN-LDO (LDO6a)

Output Voltage

VLDO6a

IO = 1 mA to 150 mA

2.75

2.85

2.95

V

TA = –30

°C to +85°C

Output Capacitor Required for Stability

CLDO6a

2.2

µF

Dropout Voltage

VDO

IO = 150 mA

200

mV

Start-Up Time from Shutdown

250

µs

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