DC-DC Converter Control Circuits
FEATURES
OUTPUT SWITCH CURRENT IN EXCESS OF 1.5A
2% REFERENCE ACCURACY
LOW QUIESCENT CURRENT:2.5mA(TYP.)
OPERATING FROM 3V TO 40V
FREQUENCY OPERATION TO 100KHz
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ACTIVE CURRENT LIMITING
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MOISTURE SENSITIVITY LEVEL 3
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MC34063A
8 SOP/ 8 DIP PIN Configulation
MC34063AG is Halogen Free products
SOP-8 PKG
DIP-8 PKG
APPLICATION
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Battery Chargers
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NICs / Switches / Hubs
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ADSL Modems
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Negative Voltage Power Supplies
Switch
Collector
Switch
Emitter
Timing
Capacitor
Ground
1
2
3
4
8
7
6
5
Driver
Collector
Ipk Sense
Vcc
Comparator
Inverting
Input
ORDERING INFORMATION
Device
MC34063AD
MC34063AGD
MC34063AN
Package
SOP-8
DIP-8
DESCRIPTION
The MC34063A series is a monolithic control circuit delivering the main functions for DC-DC voltage
converting.
The device contains an intermal temperature compensated reference, comparator, duty cycle controlled
oscillator with an active current limit circuit driver and high current output switch.
Output voltage is adjustable through two external resistors with a 2% reference accuracy.
Employing a minimum number of external components the MC34063A devices series is designed for
Step-Down, Step-Up and Voltage-lnverting applications.
May. 2009 - Rev. 1.2
HTC
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1
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HTC [ HTC KOREA TAEJIN TECHNOLOGY CO. ]
