REV. 0

–2–

Parameter

Symbol

Condition

Min

Typ

Max

Unit

SHUTDOWN SUPPLY CURRENT

ICC

VBAT

≤ 2.5 V

VBAT = VBAT2 = 2.3 V

7

20

µA

(Deep Discharged Lockout Active)

2.5 V < VBAT

≤ 3.2 V

VBAT = VBAT2 = 3.0 V

30

55

µA

(UVLO Active)

VBAT > 3.2 V

VBAT = VBAT2 = 4.0 V

45

80

µA

OPERATING GROUND CURRENT

IGND

VBAT = 3.6 V

VSIM, VCORE, VMEM, VRTC On

Minimum Loads

225

300

µA

All LDOs On

Minimum Loads

345

450

µA

Maximum Loads

1.0

3.0

% of max

load

current

UVLO ON THRESHOLD

VBAT

3.2

3.3

V

UVLO HYSTERESIS

VBAT

200

mV

DEEP DISCHARGED LOCKOUT ON

VBAT

2.4

2.75

V

THRESHOLD

DEEP DISCHARGED LOCKOUT

VBAT

100

mV

HYSTERESIS

INPUT HIGH VOLTAGE

2.0

V

(PWRONIN, TCXOEN, SIMEN,

CHGEN, GATEIN)

INPUT LOW VOLTAGE

0.4

V

(PWRONIN, TCXOEN, SIMEN,

CHGEN, GATEIN)

INPUT HIGH BIAS CURRENT

1.0

µA

(PWRONIN, TCXOEN, SIMEN,

CHGEN, GATEIN)

INPUT LOW BIAS CURRENT

–1.0

µA

(PWRONIN, TCXOEN, SIMEN,

CHGEN, GATEIN)

PWRONKEY INPUT HIGH VOLTAGE

0.7

× VBAT

V

PWRONKEY INPUT LOW VOLTAGE

0.3

× VBAT V

PWRONKEY INPUT PULL-UP

70

100

130

k

Ω

RESISTANCE TO VBAT

THERMAL SHUTDOWN THRESHOLD

2

160

ºC

THERMAL SHUTDOWN HYSTERESIS

45

ºC

ROWX CHARACTERISTICS

ROWX Output Low Voltage

PWRONKEY = Low

µA

0.4

V

ROWX Output High Leakage

PWRONKEY = High

Current

V(ROWX) = 5 V

1

µA

SIM CARD LDO (VSIM)

Output Voltage

VSIM

Line, Load, Temp

2.80

2.85

2.92

V

Line Regulation

∆VSIM

Min Load

2

mV

Load Regulation

∆VSIM

50

1

mV

Output Capacitor Required for Stability

2.2

µF

Dropout Voltage

35

100

mV

DIGITAL CORE LDO (VCORE)

Output Voltage

ADP3408ARU-2.5

VCORE

Line, Load, Temp

2.40

2.45

2.50

V

ADP3408ARU-1.8

VCORE

Line, Load, Temp

1.75

1.80

1.85

V

Line Regulation

∆VCORE

Min Load

2

mV

Load Regulation

∆VCORE

50

7

mV

Output Capacitor Required for Stability

2.2

µF

(–20 C

CVMEM = 2.2

F, VTCXO = 0.22

F, CVRTC = 0.1

F, CVBAT = 10

F, minimum loads applied on all outputs, unless otherwise noted.)