Step-Up/Down/Inverting Switching Regulators - Feeling
Description
Technology
FP34063
1.
5 A, Step-Up/Down/Inverting Switching Regulators
GENERAL DESCRIPTION
The FP34063 is a monolithic control circuit containing the primary functions required for DC−to−DC converters.
These devices consist of an internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver and high current output switch.
This series was specifically designed to be incorporated in Step-Down and Step-Up and Voltage Inverting applications with a minimum number of external components.
FEATURES
l Operation from 3.
0 V to 30 V Input l Low Standby Current l Current Limiting l Output Switch Current to 1.
5 A l Output Voltage Adjustable l Frequency Operation to 100 kHz l Precision 2% Reference l SOP8 Package
SOP8
APPLICATION l DC to DC Converter
Rev0.
4 Jan 2, 2007 P1/FP34063/34063
Free Datasheet http://www.
datasheet-pdf.
com/
Technology
FUNCTIONAL BLOCK DIAGRAM
FP34063
Drive Collector
8 SQ
Q2 Q1
100
1
Switch Collector
IPK Sense
R 7 Ipk CT
2
Oscillator
Switch Emitter
VCC
6
Comparator
3
1.
25V Reference Regulator
Timing Capacitor
Comparator Inverting 5 Input
+ -
4
GND
MARK VIEW
PIN DESCRIPTION
Name
No.
1 2 3 4 5 6 7 8
I/O I O I P I P I I
Description Switch Collector Switch Emitter Oscillator Timing Capacitor IC ground Feedback Comparator Inverting Input IC Power Supply Current Sense Input Driver Collector
1 2
FP34063
8 7 6 5
SC SE TC GND INVCC IPK DC
3
-
4
L
Rev0.
4 Jan 2, 2007 P2/FP34063/34063
Free Datasheet http://www.
datasheet-pdf.
com/
Technology
ORDER INFORMATION
Part Number FP34063DR-LF FP34063D-LF FP33063DR-LF FP33063D-LF Operating Temperature -25°C ~ +85°C -25°C ~ +85°C -40°C ~ +85°C -40°C ~ +85°C Package SOP8 SOP8 SOP8 SOP8
FP34063
Description Tape & Reel Tube Tape & Reel Tube
IC DATE CODE DISTINGUISH
FP34063
-
L
Lead Free Lot Number Mass Production Version Per Half Month Year
FOR EXAMPLE:
January February March
A (Front Half Month), B (Last Half Month) C,...
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