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MC34063A View Datasheet(PDF) - Texas Instruments

Part NameMC34063A TI
Texas Instruments TI
Description1.5-A Peak Boost/Buck/Inverting Switching Regulators
MC34063A Datasheet PDF : 30 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
MC33063A, MC34063A
SLLS636N – DECEMBER 2004 – REVISED JANUARY 2015
7.9 Typical Characteristics
1000
VCC = 5 V
Pin 7 = VCC
Pin 5 = GND
100
tON
TA = 25°C
10
tOFF
1
0.01
0.1
1
10
CT, Oscillator Timing Capacitor (nF)
Figure 1. Output Switch On-Off Time vs
Oscillator Timing Capacitor
1.4
Darlington Connection
1.2
1.0
Force Beta = 20
0.8
0.6
0.4
VCC = 5 V
Pin 7 = VCC
0.2
Pin 2, 3, 5 = GND
0.0
TA = 25°C
00.0 0.2 0.4 0.6 0.8 11.0 1.2 1.4 1.6
IC, Collector Current (A)
Figure 3. Output Switch Saturation Voltage vs
Collector Current (Common-Emitter Configuration)
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1.8
1.7
VCC = 5 V
Pin 1, 7, 8 = VCC
1.6 Pin 3, 5 = GND
1.5 TA = 25°C
1.4
1.3
1.2
1.1
1.10
00.0 0.2 0.4 0.6 0.8 11.0 1.2 1.4 1.6
IE, Emitter Current (A)
Figure 2. Output Switch Saturation Voltage vs
Emitter Current (Emitter-Follower Configuration)
3.6
3.2
2.8
2.4
2.0
1.6
1.2
CT = 1 nF
Pin 7 = VCC
0.8
Pin 2 = GND
0.4
TA = 25°C
0.0
0
5 10 15 20 25 30 35 40
VCC, Supply Voltage (V)
Figure 4. Standby Supply Current vs Supply Voltage
6
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