AS1326
Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s
6 Electrical Characteristics
CLK/SEL = FB = PGND = GND, ISET = REF, OUT = POUT, V OUT = 3.6V, T AMB = -40 to +85oC. Typical values are at
T AMB = +25oC. Unless otherwise specified.
Table 4. Electrical Characteristics
Symbol
Parameter
Condition
Min
Typ
Max
Unit
DC-DC Converter
V IN
Input Voltage Range
1
0.7
5.0
V
V MINSU
Minimum Startup Voltage
2
I LOAD < 1mA, T AMB = +25oC
0.9
1.1
V
Temperature Coefficient of
Startup Voltage
-1.6
mV/°C
f SU
f SW
f SWEXT
V OUT
Frequency in Startup Mode
Internal Oscillator Frequency
Oscillator Maximum
3
Duty Cycle
External Clock
Frequency Range
Output Voltage
V OUT = 1.5V
CLK/SEL = OUT
V FB < 0.1V, CLK/SEL = OUT, includes load
regulation for 0 < I LX < 0.55A
125
0.8
80
0.5
3.17
500
1
86
3.3
1000
1.2
90
1.2
3.38
kHz
MHz
%
MHz
V
includes load regulation for 0 < I LX < 0.55A 1.215
V FB
FB Regulation Voltage
Adjustable output, CLK/SEL = OUT,
1.240
1.270
V
I FB
FB Input Leakage Current
V FB = 1.35V, T AMB = +25oC
-100
0.01
100
nA
Load Regulation
CLK/SEL = OUT, no load to full load,
0 < I LX < 1.0A
-1
%
V OUTADJ
Output Voltage
Adjust Range
2.5
5.0
V
Output Voltage
Lockout Threshold
4
Rising edge
2.00
2.15
2.30
V
ISET Input Leakage Current
V ISET = 1.25V, T AMB = +25oC
-50
0.01
50
nA
I SHDN
Supply Current in Shutdown
V ON = 0V, V ONN = 3.6V
0.1
5
μA
No-Load Supply Current
5
CLK/SEL = GND
65
100
μA
5
No-Load Supply Current ,
Forced PWM Mode
CLK/SEL = OUT
2
mA
DC-DC Switches
POUT Leakage Current
LX Leakage Current
V LX = 0, V OUT = 5.5V, T AMB = +25oC
V LX = V OUT = 5.5V, in shutdown,
T AMB = +25oC
0.1
0.1
10
10
μA
μA
R ON
I NMOS
Switch On-Resistance
N-Channel Current Limit
N-channel
P-channel
1.25
0.2
0.25
1.6
0.35
0.45
1.95
Ω
A
References
V REF
Reference Output Voltage
Reference Load Regulation
Reference Supply Rejection
I REF = 0
-1μA < I REF < +50μA
2.5V < V OUT < 5V
1.230
1.250
5
0.2
1.270
15
6
V
mV
mV
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