AS1329
Data Sheet
- Electrical Characteristics
6 Electrical Characteristics
T
AMB
= -40 to +85ºC, V
IN
= +1.2V, V
OUT
= +3.3, V
SHDNN
= +1.2V (unless otherwise specified). Typ values @ T
AMB
= +25ºC.
Table 4. Electrical Characteristics
Symbol
Parameter
Minimum Start-Up Voltage
Minimum Operating Voltage
Output Voltage Adjust Range
V
FB
I
FB
I
QPWS
I
QSHDNN
I
Q
I
NMOSSWL
I
PMOSSWL
R
ONNMOS
Feedback Voltage
Feedback Input Current
Quiescent Current
(Powersave Operation)
Quiescent Current (Shutdown)
Quiescent Current (Active)
NMOS Switch Leakage
PMOS Switch Leakage
NMOS Switch On Resistance
Conditions
I
LOAD
= 1mA
SHDNN = V
IN
T
AMB
= 25ºC
T
AMB
=
T
MIN
to T
MAX
V
FB
= 1.25V
3
2
1
Min
Typ
0.85
0.65
Max
1
0.85
5
Units
V
V
V
V
nA
2.5
1.192
1.23
1
30
0.01
150
0.1
0.1
0.35
0.20
0.45
0.30
850
2
1.268
V
FB
= 1.4V , AS1329A&B only
V
SHDNN
= 0V
V
FB
= 1.4V , AS1329B only
V
SW
= 5V
V
SW
= 0V
V
OUT
= 3.3V
V
OUT
= 5V
V
OUT
= 3.3V
V
OUT
= 5V
V
IN
= 2.5V
AS1329A only
3
50
1
300
5
5
0.8
0.7
0.8
0.7
µA
µA
µA
µA
µA
Ω
Ω
mA
mA
%
R
ONPMOS
I
NMOS
I
PS
PMOS Switch On Resistance
NMOS Current Limit
Powersave Operation Current
Threshold
Max Duty Cycle
3
80
0.95
0.85
1
0.35
87
1.2
1.2
1.5
1.5
V
FB
= 1V, T
AMB
=
T
MIN
to T
MAX
T
AMB
= 25ºC
T
AMB
=
T
MIN
to T
MAX
f
SW
V
SHDNNH
V
SHDNNL
I
SHDNN
Switching Frequency
SHDNN Input High
SHDNN Input Low
SHDNN Input Current
MHz
V
V
µA
V
SHDNN
= 5.0V
0.01
1
1. Minimum V
IN
operation after start-up is only limited by the battery’s ability to provide the necessary power as it
enters a deeply discharged state.
2. Specification is guaranteed by design and not 100% production tested.
3. I
QPWS
is measured at V
OUT
. Multiply this value by V
OUT
/V
IN
to get the equivalent input (battery) current.
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