AS1331_07 Datasheet, PDF (8/17 Pages) ams AG – 300mA Buck-Boost Synchronous DC/DC Converters

AS1331
Datasheet - Typical Operating Characteristics
Figure 9. IIN Short Circuit vs. Input Voltage
30
Figure 10. VOUT Ripple vs. Input Voltage
250
25
200
20
15
lid 10
5
a ₀
v _{1.8 2.2 2.6 3.0 3.4 3.8 4.2 4.6 5.0 5.4}
Input Voltage (V)
150
100
50
10uF/ Vpp
22uF/ Vpp
47uF/ Vpp
0
1.5 2 2.5 3 3.5 4 4.5 5 5.5
Input Voltage (V)
till Figure 11. Load Regulation vs. Load Current
3.38
G _{s 3.36}
A ^t _3.34
s ^{n 3.32}
e _3.3
m ^t _3.28
a ⁿ _3.26
o _3.24
c _0.1
Vout - 10uF
Vout - 22uF
Vout - 47uF
1
10
100
Load Current (mA)
1000
Figure 12. VOUT Regulation vs. Temperature
3.5
V_OUT = 3.3V
3.25
V_OUT = 3.0V
3
2.75
2.5
V_OUT = 2.5V
2.25
2
-45 -30 -15 0 15 30 45 60 75 90
Temperature (°C)
al _{Figure 13. IFB vs. Temperature; VIN = 5V}
ic ^0.4
3.6V
5.0V
0.3
5.5V
n _0.2
h _0.1
Tec ⁰
Figure 14. EN Pin Threshold
1
0.9
0.8
0.7
-0.1
up-ON
down-OFF
-0.2
0.6
-45 -30 -15 0 15 30 45 60 75 90
Temperature (°C)
-45 -30 -15 0 15 30 45 60 75 90
Temperature (°C)
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Revision 1.04
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