APPLICATION MANUAL
PWM switching
regulator controller IC TK11840L
CONTENTS
1 .
DESCRIPTION 2 .
FEATURES 3 .
APPLICATIONS 4 .
PIN CONFIGURATION 5 .
PACKAGE OUTLINE 6 .
BLOCK DIAGRAM 7 .
ABSOLUTE MAXIMUM RATINGS 8 .
ELECTRICAL CHARACTERISTICS 9 .
TEST CIRCUIT 10 .
TYPICAL CHARACTERISTICS 11 .
CIRCUIT DESCRIPTION 12 .
APPLICATIONS INFORMATION 13 .
NOTES 14.
OFFICES
2 2 2 2 2 3 4 5 6 6 8 13 15 15
GC3-I015
MEETING YOUR NEEDS Page 1
TK11840L
PWM switching
regulator controller IC TK11840L
1.
DESCRIPTION
The TK11840L is a step-up DC-DC converter that drives an external
NPN power
transistor using a constant frequency PWM architecture.
The IC works with a wide operating supply range (1.
8V to 10...