MC34063AD ON Semiconductor, MC34063AD Datasheet - Page 7

• 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

R
V
sc
in
8
7
6
11a. External NPN Switch
25 V
V
in
Line Regulation
Load Regulation
Output Ripple
Short Circuit Current
Efficiency
Output Ripple With Optional Filter
100
0.33
R
R1 1.2 k
sc
Figure 12. External Current Boost Connections for I
+
8
7
6
5
V
CC
Test
+
-
3.6 k
R2
I
1
2
pk
Comp.
OSC
S Q
R
Figure 11. Step−Down Converter
C
T
1.25 V
Reg
Ref
Q2
http://onsemi.com
V
V
V
V
V
V
in
in
in
in
in
in
V
out
Q1
= 15 V to 25 V, I
= 25 V, I
= 25 V, I
= 25 V, R
= 25 V, I
= 25 V, I
7
1
2
3
4
1N5819
C
O
O
O
O
L
T
R
Conditions
V
= 50 mA to 500 mA
= 500 mA
= 500 mA
= 500 mA
sc
470
= 0.1 W
in
pF
470
L
O
+
8
7
6
= 500 mA
C
220 mH
O
11b. External PNP Saturated Switch
C
5.0 V/500 mA
Peak Greater than 1.5 A
V
out
12 mV = ±0.12%
3.0 mV = ±0.03%
120 mVpp
1.1 A
83.7%
40 mVpp
Results
1.0 mH
Optional Filter
1
2
+
100
V
out
V