MC34166 ON Semiconductor, MC34166 Datasheet - Page 6

• Manufacturer Part Number: MC34166
• Description: (MC33166 / MC34166) Step-Up/Down/Inverting Switching Regulators
• Manufacturer: ON Semiconductor

Timing Capacitor C
C
T
Compensation
+
Switch Output
Pulse Width
Modulator
4.1 V
2.3 V
OFF
ON
GND
T
Oscillator
Figure 14. MC34166 Representative Block Diagram
3
Shutdown
Thermal
Figure 15. Timing Diagram
PWM Latch
Compensation
MC34166, MC33166
http://onsemi.com
100 mA
=
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
Output
Switch
4
2
1
V
in
Input Voltage/V
R
C
1
in
R
2
CC
C
L
O
V
O