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
Input Voltage Range 1
VIN
0.7
0.9
5.0
1.1
V
V
Minimum Startup Voltage 2
VMINSU
ILOAD < 1mA, TAMB = +25ºC
Temperature Coefficient of
Startup Voltage
-1.6
mV/°C
fSU
Frequency in Startup Mode
Internal Oscillator Frequency
VOUT = 1.5V
125
0.8
500
1
1000
1.2
kHz
fSW
CLK/SEL = OUT
MHz
Oscillator Maximum
Duty Cycle 3
80
86
90
%
External Clock
fSWEXT
VOUT
0.5
1.2
MHz
V
Frequency Range
VFB < 0.1V, CLK/SEL = OUT, includes load
regulation for 0 < ILX < 0.55A
Output Voltage
3.17
3.3
3.38
Adjustable output, CLK/SEL = OUT,
VFB
IFB
FB Regulation Voltage
FB Input Leakage Current
Load Regulation
1.215 1.240 1.270
V
nA
%
includes load regulation for 0 < ILX < 0.55A
VFB = 1.35V, TAMB = +25ºC
-100
0.01
-1
100
CLK/SEL = OUT, no load to full load,
0 < ILX < 1.0A
Output Voltage
Adjust Range
VOUTADJ
2.5
5.0
V
V
Output Voltage
Rising edge
2.00
-50
2.15
2.30
Lockout Threshold 4
ISET Input Leakage Current
Supply Current in Shutdown
VISET = 1.25V, TAMB = +25ºC
VON = 0V, VONN = 3.6V
0.01
0.1
50
5
nA
µA
ISHDN
No-Load Supply Current 5
CLK/SEL = GND
CLK/SEL = OUT
65
2
100
µA
No-Load Supply Current 5,
Forced PWM Mode
mA
DC-DC Switches
POUT Leakage Current
VLX = 0, VOUT = 5.5V, TAMB = +25ºC
0.1
0.1
10
10
µA
µA
VLX = VOUT = 5.5V, in shutdown,
TAMB = +25ºC
LX Leakage Current
N-channel
P-channel
0.2
0.25
1.6
0.35
0.45
1.95
RON
Switch On-Resistance
N-Channel Current Limit
Ω
INMOS
1.25
A
References
VREF
Reference Output Voltage
IREF = 0
1.230 1.250 1.270
V
Reference Load Regulation
Reference Supply Rejection
-1µA < IREF < +50µA
2.5V < VOUT < 5V
5
15
6
mV
mV
0.2
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