MC34063AD ON Semiconductor, MC34063AD Datasheet - Page 4

• Manufacturer Part Number: MC34063AD
• Description: IC REG SW 1.5A STEP UP/DN 8-SOIC
• Manufacturer: ON Semiconductor
• Type: Step-Down (Buck), Step-Up (Boost), Invertingr

Specifications of MC34063AD

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.25 ~ 40 V
• Current - Output: 1.5A
• Frequency - Switching: 100kHz
• Voltage - Input: 3 ~ 40 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Power - Output: 625mW
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: MC34063ADOS

7. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible.
18
16
14
12
10
8
6
4
2
0
400
380
360
340
320
300
280
260
240
220
200
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.0
-55
0
Figure 5. Emitter Follower Configuration Output
V
Pin 5 = GND, T
CC
V
I
0.5
chg
Saturation Voltage versus Emitter Current
Ct, TIMING CAPACITOR CAPACITANCE (nF)
CC
0.2
= 5.0 V, Pin 7 = V
Figure 7. Current Limit Sense Voltage
= I
= 5.0 V
-25
dischg
1.0
Figure 3. Oscillator Frequency
0.4
T
1.5
A
, AMBIENT TEMPERATURE (°C)
versus Temperature
A
I
0
E
, EMITTER CURRENT (A)
= 25°C
0.6
2.0
ON TIME (ms)
CC
25
2.5
0.8
FREQUENCY (kHz)
3.0
50
1.0
OFF TIME (ms)
V
Pins 1, 7, 8 = V
Pins 3, 5 = GND
T
(See Note 7)
3.5
A
CC
75
= 25°C
1.2
= 5.0 V
4.0
100
1.4
4.5
http://onsemi.com
CC
5.0
1.6
125
180
160
140
120
100
80
60
40
20
0
4
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
3.6
3.2
2.8
2.4
2.0
1.6
1.2
0.8
0.4
0
0
Figure 6. Common Emitter Configuration Output
0
0
V
Pin 7 = V
Pin 2 = GND
CC
V
Pin 7 = V
Pins 2, 3, 5 = GND
T
(See Note 7)
= 5.0 V
A
Figure 4. Timing Capacitor Waveform
CC
Figure 8. Standby Supply Current versus
0.2
= 25°C
5.0
= 5.0 V
CC
Switch Saturation Voltage versus
CC
0.4
10
I
C
Pins 1, 5, 8 = Open
C
T
V
A
, COLLECTOR CURRENT(A)
T
CC
Collector Current
= 25°C
= 1.0 nF
Supply Voltage
0.6
, SUPPLY VOLTAGE (V)
15
10 ms/DIV
0.8
20
1.0
25
Darlington Connection
C
Pin 7 = V
Pin 2 = GND
T
Forced b = 20
= 1.0 nF
30
1.2
CC
35
1.4
40
1.6