ADP3408 Ver la hoja de datos (PDF) - Analog Devices
Número de pieza
componentes Descripción
Lista de partido
ADP3408 Datasheet PDF : 20 Pages
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ADP3408
Parameter
RTC LDO
REAL-TIME CLOCK LDO/
COIN CELL CHARGER (VRTC)
Maximum Output Voltage
ADP3408ARU-2.5
ADP3408ARU-1.8
Off Reverse Input Current
Output Capacitor Required for Stability
ANALOG LDO (VAN)
Output Voltage
Line Regulation
Load Regulation
Symbol
VRTC
VRTC
IL
CO
VAN
⌬VAN
⌬VAN
Output Capacitor Required for Stability
Ripple Rejection
Output Noise Voltage
CO
⌬VBAT/
⌬VAN
VNOISE
TCXO LDO (VTCXO)
Output Voltage
ADP3408-2.5
ADP3408-1.8
Line Regulation
Load Regulation
VTCXO
VTCXO
⌬VTCXO
⌬VTCXO
Output Capacitor Required for Stability CO
Dropout Voltage
VDO
Ripple Rejection
Output Noise Voltage
⌬VBAT/
⌬VTCXO
VNOISE
MEMORY LDO (VMEM)
Output Voltage
Line Regulation
Load Regulation
VMEM
⌬VMEM
⌬VMEM
Output Capacitor Required for Stability CO
Dropout Voltage
REFOUT
Output Voltage
Line Regulation
Load Regulation
Ripple Rejection
Maximum Capacitive Load
Output Noise Voltage
RESET GENERATOR (RESET)
Output High Voltage
Output Low Voltage
Output Current
Delay Time per Unit Capacitance
Applied to RESCAP Pin
BATTERY VOLTAGE DIVIDER
Divider Ratio
Divider Impedance at MVBAT
Divider Leakage Current
Divider Resistance
VREFOUT
⌬VREFOUT
⌬VREFOUT
⌬VBAT/
⌬VREFOUT
CO
VNOISE
VOH
VOL
IOL
IOH
TD
BATSNS/MVBAT
ZO
Condition
1 µA ≤ ILOAD ≤ 10 µA
1 µA ≤ ILOAD ≤ 10 µA
VBAT = 2.15 V, TA = 25°C
Line, Load, Temp
Min Load
50 µA ≤ ILOAD ≤ 130 mA,
VBAT = 3.6 V
f = 217 Hz
VBAT = 3.6 V
f = 10 Hz to 100 kHz
ILOAD = 130 mA
VBAT = 3.6 V
Line, Load, Temp
Line, Load, Temp
Min Load
50 µA ≤ ILOAD ≤ 20 mA,
VBAT = 3.6 V
VO = VINITIAL – 100 mV
ILOAD = 20 mA
f = 217 Hz
VBAT = 3.6 V
f = 10 Hz to 100 kHz
ILOAD = 20 mA,
VBAT = 3.6 V
Line, Load, Temp
Min Load
50 µA < ILOAD < 60 mA,
VBAT = 3.6 V
ILOAD = 60 mA
ILOAD = 80 mA
Line, Load, Temp
Min Load
0 µA < ILOAD < 50 µA
VBAT = 3.6 V
f = 217 Hz
VBAT = 3.6 V, ILOAD = 50 µA
f = 10 Hz to 100 kHz,
VBAT = 3.6 V
IOH = 500 µA
IOL = –500 µA
VOL = 0.25 V,
VOH = VMEM – 0.25 V
TCXOEN = High
TCXOEN = Low
TCXOEN = High
Min Typ
2.39
2.45
1.80
1.95
0.1
2.40
2.45
2
8
2.2
65
80
2.66
2.711
0.22
65
2.715
2.750
2
1
160
80
2.744
2.2
2.80
2
3
80
107
1.19
1.210
0.2
0.5
65
75
100
40
VMEM – 0.25
1
1
0.6
1.2
2.32
59.5
215
2.35
85
300
Max Unit
2.51
V
2.1
V
0.5
µA
µF
2.50
V
mV
mV
µF
dB
µV rms
2.77
2.789
310
V
V
mV
mV
µF
mV
dB
µV rms
2.856 V
mV
mV
µF
180
mV
210
mV
1.23
V
mV
mV
dB
pF
µV rms
V
0.25
V
mA
mA
2.4
ms/nF
2.37
110
kΩ
1
µA
385
kΩ
REV. A
–3–
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