AS1326(2007) データシートの表示（PDF） - austriamicrosystems AG
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AS1326 Datasheet PDF : 18 Pages
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AS1326
Data Sheet - Electrical Characteristics
6 Electrical Characteristics
CLK/SEL = FB = PGND = GND, ISET = REF, OUT = POUT, VOUT = 3.6V, TAMB = -40 to +85ºC. Typical values are at
TAMB = +25ºC. Unless otherwise specified.
Table 4. Electrical Characteristics
Symbol
Parameter
Condition
Min Typ Max Unit
DC-DC Converter
VIN
Input Voltage Range 1
0.7 5.0
V
VMINSU Minimum Startup Voltage 2
ILOAD < 1mA, TAMB = +25ºC
0.9 1.1
V
Temperature Coefficient of
Startup Voltage
-1.6
mV/°C
fSU Frequency in Startup Mode
VOUT = 1.5V
125 500 1000 kHz
fSW Internal Oscillator Frequency
CLK/SEL = OUT
0.8
1
1.2 MHz
Oscillator Maximum
Duty Cycle 3
80
86
90
%
fSWEXT
External Clock
Frequency Range
0.5
1.2 MHz
VOUT
Output Voltage
VFB < 0.1V, CLK/SEL = OUT, includes load
regulation for 0 < ILX < 0.55A
3.17
3.3
3.38
V
VFB
FB Regulation Voltage
Adjustable output, CLK/SEL = OUT,
includes load regulation for 0 < ILX < 0.55A
1.215
1.240
1.270
V
IFB
FB Input Leakage Current
VFB = 1.35V, TAMB = +25ºC
-100 0.01 100 nA
Load Regulation
CLK/SEL = OUT, no load to full load,
0 < ILX < 1.0A
-1
%
VOUTADJ
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
VISET = 1.25V, TAMB = +25ºC
-50 0.01 50 nA
ISHDN Supply Current in Shutdown
VON = 0V, VONN = 3.6V
0.1
5
µA
No-Load Supply Current 5
CLK/SEL = GND
65 100 µA
No-Load Supply Current 5,
Forced PWM Mode
CLK/SEL = OUT
2
mA
DC-DC Switches
POUT Leakage Current
VLX = 0, VOUT = 5.5V, TAMB = +25ºC
0.1 10 µA
LX Leakage Current
VLX = VOUT = 5.5V, in shutdown,
TAMB = +25ºC
0.1 10 µA
RON
Switch On-Resistance
N-channel
P-channel
0.2 0.35
Ω
0.25 0.45
INMOS N-Channel Current Limit
1.25 1.6 1.95 A
References
VREF Reference Output Voltage
IREF = 0
1.230 1.250 1.270 V
Reference Load Regulation
-1µA < IREF < +50µA
5
15 mV
Reference Supply Rejection
2.5V < VOUT < 5V
0.2
6
mV
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