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MC34166_05 Datasheet(PDF) 5 Page - ON Semiconductor

Part No. MC34166_05
Description  3.0 A, Step−Up/Down/Inverting Switching Regulators
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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MC34166, MC33166
http://onsemi.com
5
Figure 8. Switch Output Source Saturation
versus Source Current
Figure 9. Negative Switch Output Voltage
versus Temperature
Figure 10. Switch Output Current Limit
Threshold versus Temperature
Figure 11. Standby Supply Current
versus Supply Voltage
Figure 12. Undervoltage Lockout
Threshold versus Temperature
Figure 13. Operating Supply Current
versus Supply Voltage
4.5
−55
TA, AMBIENT TEMPERATURE (°C)
−25
0
25
50
75
100
125
5.0
5.5
6.0
6.5
−2.5
ISource, SWITCH OUTPUT SOURCE CURRENT (A)
−2.0
−1.5
−1.0
−0.5
0
0
2.0
3.0
4.0
5.0
TA, AMBIENT TEMPERATURE (°C)
−55
−25
0
25
50
75
100
125
−3.0
−1.0
−0.8
−0.6
−0.4
−0.2
0
−1.2
VCC = 12 V
Pin 5 = 2.0 V
Pins 1, 3 = GND
Pin 2 Driven Negative
GND
3.9
4.1
4.3
4.5
4.7
−55
−25
0
25
50
75
100
125
VCC = 12 V
Pins 1, 2, 3 = GND
0
40
80
120
160
0
VCC, SUPPLY VOLTAGE (V)
10
20
30
40
Pin 4 = VCC
Pins 1, 3, 5 = GND
Pin 2 Open
TA = +25°C
4.0
0
0
VCC, SUPPLY VOLTAGE (V)
10
20
30
40
10
20
30
40
Pin 4 = VCC
Pins 1, 3 = GND
Pins 2, 5 Open
TA = +25°C
TA, AMBIENT TEMPERATURE (°C)
1.0
TA = +25°C
VCC
Isw = 100 mA
Isw = 10 mA
Startup Threshold
VCC Increasing
Turn−Off Threshold
VCC Decreasing




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