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AS1339
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
V IN1A = V IN1B = V IN2 = V PA_EN = V EN1 = V EN2 = 3.6V, T A = -40oC to +85oC. Typical values are at T A =+25oC, (unless
otherwise specified), for external components refer to Table 5 on page 7 .
Table 3. Electrical Characteristics
Symbol
Parameter
Condition
Min
Typ
Max
Unit
Input Supply
V IN
Input Voltage Range
2.7
5.5
V
V PA_EN = V EN1 = V EN2 = 0V
I SHDN
I Q
Shutdown Supply Current
DC-DC No-Load Supply
Current
1
V EN1 = V EN2 = 0V, I LOAD(DCDC) = 0mA,
switching, V IN = 4.5V, V OUT = 3.4V
0.1
4.5
1
6
μA
mA
DCDC Output Voltage
I LOAD
Load Current
650
mA
Output Voltage Range
PWM Mode
0.8
3.85
V
V OUT
Output Voltage
V REFIN = 0.32V, V IN = 3.9V
V REFIN = 0.84V, V IN = 3.9V
V REFIN = 1.36V, V IN = 3.9V
0.75
2.05
3.319
0.8
2.1
3.4
0.85
2.15
3.481
V
V
V
Thermal Protection
Thermal Shutdown
T A rising, 10oC typical hysteresis
+140
oC
Logic Control
PA_EN, EN1, EN2, Logic-
Input High Voltage
PA_EN, EN1, EN2, Logic-
Input Low Voltage
2.7V ≤ V IN ≤ 5.5V
2.7V ≤ V IN ≤ 5.5V
1.4
0.5
V
V
Logic-Input Current
(PA_EN, EN1, EN2)
V IL = 0V
V IH = V IN = 5.5V
-1
50
+1
75
μA
μA
REFIN
REFIN Operating
Common-Mode Range
0.32
1.5
V
REFIN gain V OUT /V REFIN
REFIN Current
2
V REFIN = 0.32V
V REFIN = 0.84V, 1.36V
V REFIN = V IN = 5.5V
2.35
2.44
-1
2.50
2.50
2.65
2.56
+1
V/V
V/V
μA
LX
R DSONP Pin-Pin Resistance for PFET
R DSONN Pin-Pin Resistance for NFET
PFET Leakage Current
NFET Leakage Current
PFET Peak Current Limit
I SW = 200mA; T A = +25°C
I SW = 200mA
I SW = -200mA; T A = +25°C
I SW = -200mA
V IN = 5.5V, V LX = 0V
V IN = V LX = 5.5V
V LX = 0V
110
230
0.1
0.1
1100
200
230
415
485
3
3
m Ω
m Ω
μA
μA
mA
www.austriamicrosystems.com/DC-DC_Step-Down/AS1339
Revision 1.05
5 - 25
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