MC34167 ON Semiconductor, MC34167 Datasheet - Page 6
MC34167
Manufacturer Part Number
MC34167
Description
(MC33167 / MC34167) Step-Up/Down/Inverting Switching Regulators
Manufacturer
ON Semiconductor
Datasheet
1.MC34167.pdf
(20 pages)
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Timing Capacitor C
C
T
+
Compensation
Switch Output
Pulse Width
Modulator
4.1 V
2.3 V
OFF
ON
GND
T
Oscillator
Figure 14. MC34167 Representative Block Diagram
3
Shutdown
Thermal
Figure 15. Timing Diagram
PWM Latch
Compensation
MC34167, MC33167
100 mA
=
http://onsemi.com
Sink Only
Positive True Logic
S
R
Q
+
6
120
5
Current
Sense
Reference
C
5.05 V
Error
Amp
F
Undervoltage
Lockout
R
F
+
Voltage
Feedback
Input
Switch
Output
4
2
1
V
in
Input Voltage/V
R
C
1
in
R
2
CC
C
L
O
V
O