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What is MC34063A?

This electronic component, produced by the manufacturer "HTC", performs the same function as "DC-DC Converter Control Circuits".


MC34063A Datasheet PDF - HTC

Part Number MC34063A
Description DC-DC Converter Control Circuits
Manufacturers HTC 
Logo HTC Logo 


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DC-DC Converter Control Circuits
MC34063A
● OUTPUT SWITCH CURRENT IN EXCESS OF
1.5A
2% REFERENCE ACCURACY
LOW QUIESCENT CURRENT:2.5mA(TYP.)
OPERATING FROM 3V TO 40V
REQUENCY OPERATION TO 100KHz
ACTIVE CURRENT LIMITING
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.
8 SOP/ 8 DIP PIN Configulation
Switch
Collector
Switch
Emitter
1
2
8
Drive
Collector
7 Ipk Sense
Timing
Capacitor
3
Ground 4
6 Vcc
5
Comparator
- Input
ORDERING INFORMATION
Device
Package
MC34063AD
8 SOP
MC34063AN
8 DIP
BLOCK DIAGRAM
Drive
Collector
8
sQ
R
Switch
Q2 1 Collector
Q1
Ipk Sense 7
Vcc 6
Comparator
lnverting
5
input
Ipk Oscillator
Comparator
+
-
1.25V
Reference
Regulator
2
Switch
Emitter
3
Timing
Capacitor
4 GND
HTC
1

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MC34063A equivalent
DC-DC Converter Control Circuits
MC34063A
TYPICAL ELECTRICAL CHARACTERISTICS (Continued)
Reference Voltage vs Temperature
Bias Current vs Temperature
Vref
(V)
1.265
1.260
1.255
VCC=5V
1.250
1.245
1.240
-40
0
40 80 120 TJ(℃)
Supply Current vs Temperature
IBias
(㎁)
10
8
VCC=5V
CII to GND
6
4
2
0
-40 0
40 80 120
Supply Current vs Input Voltage
TJ(℃)
ICC
(㎃)
5
4
3
2
1
0
-40
VCC=5V
CT=1㎋
0 40 80 120 TJ(℃)
ICC
(㎃)
4.0
3.5
3.0
2.5
2.0
1.5
0
TJ= 25℃
CT= 1㎋
10 20 30 40 Vin(V)
HTC
5


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On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for MC34063A electronic component.


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1. 1.5A, Switching Regulator - Onsemi

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Featured Datasheets

Part NumberDescriptionMFRS
MC34063The function is DC/DC CONVERTER CONTROL CIRCUIT. HOTCHIPHOTCHIP
MC34063The function is DC-DC CONVERTER CONTROL CIRCUITS. ST MicroelectronicsST Microelectronics
MC34063The function is DC to DC Converter Controller. Unisonic TechnologiesUnisonic Technologies

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