器件名称: MC34063CN
功能描述: 0.8A Step Down / Step Up / Inverting DC-DC Converter
文件大小: 160.25KB 共9页
简 介:0.8A Step Down / Step Up / Inverting DC-DC Converter
MC34063C
FEATURES
8 SOP/ 8 DIP PIN Configulation
● OPERATING FROM 3V TO 40V ● Low Standby Current ● Current Limitting ● Output Switch Current to 0.8A ● Output Valtage Adjustable ● Operation Frequency up to 180KHz (CT=100pF) ● Precision 2% Reference
SOP-8 PKG DIP-8 PKG
Switch Collector Switch Emitter
1 2
8 7 6 5
Drive Collector Ipk Sense Vcc Comparator - Input
Application
● Battery Chargers ● NICs / Switches / Hubs ● ADSL Modems ● Negative Voltage Power Supplies
Timing 3 Capacitor 4 Ground
ORDERING INFORMATION
Device MC34063CD MC34063CN Package 8 SOP 8 DIP
DESCRIPTION The MC34063C is a monolithic switching regulator control circuit containing the primary funtion required for DC-DC converters. This device consists of internal temperature compenssated reference, voltage comparator, cotr duty cycle oscillator with active current. The device is specifically designed to be used in StepStep-Up and Voltage-Inverting applications with a minimum number of external components. The MC34063C is the enhanced version of MC34063A with the ability to work in higher frequen The 34063C is available in 2 pcakages : SOP-8 and DIP-8.
Jan. 2007-Rev 1.0
HTC
1
0.8A Step Down / Step Up / Inverting DC-DC Converter
BLOCK DIAGRAM
MC34063C
Drive Collector
8
s
Q Q2 Q1 R
1
Switch Collector
Ipk Sense
7
2
Ipk Oscillator
Switch Emitter
3
Timing Capacitor
Vcc
6
Comparator
+ Comparator lnverting input
1.25V Reference Regulator
4……
