SP6120 Datasheet, PDF (7/22 Pages) Sipex Corporation – Low Voltage, AnyFETTM, Synchronous ,Buck Controller Ideal for 2A to 10A, High Performance, DC-DC Power Converters

TYPICAL PERFORMANCE CHARACTERISTICS: Continued
Unless otherwise specified: V_CC = BST = ENABLE = 3.3V, R_OSC = 18.7kΩ, C_COMP = 0.1µF, C_SS = 0.1µF, CGH = CGL = 3.3nF, V_FB = 1.25V,
ISP = ISN = 1.25V, SWN = GND = PGND = 0V, T_AMB = 25°C.
0.30
48
0.20
46
0.10
44
0.00
-0.10
-0.20
-40
-15
10
35
60
85
Temperature (°C)
Figure 8. Error Amplifier Reference vs. Temperature
42
40
38
-40
-15
10
35
60
85
Temperature (°C)
Figure 9. Overcurrent Comparator Threshold Voltage
vs. Temperature
-44
-45
-46
-47
-40
-15
10
35
60
85
Temperature (°C)
Figure 10. SS Charge Current vs. Temperature with
V_SS = 1.5V
5.25
5.20
5.15
5.10
5.05
5.00
-40
-15
10
35
60
85
Temperature (°C)
Figure 11. SS Discharge Current vs. Temperature with
V_SS = 1.5V
3.6
3.4
3.2
3.0
2.8
2.6
-40
-15
10
35
60
85
Temperature (°C)
Figure 12. V_FB 3% High Comparator vs. Temperature
-2.2
-2.4
-2.6
-2.8
-3.0
-3.2
-40
-15
10
35
60
85
Temperature (°C)
Figure 13. V_FB 3% Low Comparator vs. Temperature
Date: 1/21/05
SP6120 Low Voltage, AnyFET^TM, Synchronous, Buck Controller
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© Copyright 2005 Sipex Corporation