Figure 2. Pin Connections

Figure 2. Pin Connections

onsemiUnited States

MC34063

SupervisorsSOIC-8

IC REG CTRLR STEP-UP/INVERT 1.5A 8-SOIC

MC34063A is a 1.5A DC-DC converter control circuit supporting step-down, step-up, and inverting applications, operating from 3.0V to 40V with current limiting, available in SOIC-8 and PDIP-8 packages.Checked against the datasheet

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Technical parameters

Datasheet-verified parameters

16 items
ParameterValue and test conditionsSource
Power Supply VoltageMax 40 Vdc
Switch CurrentMax 1.5 A
Driver Collector CurrentMax 100 mA
Operating Junction TemperatureMax +150 °C
Operating Ambient Temperature Range0 to +70 °C
Storage Temperature Range-65 to +150 °C
Supply CurrentMax 4.0 mA (VCC = 5.0 V to 40 V, CT = 1.0 nF, Pin 7 = VCC, VPin 5 > Vth, Pin 2 = GND, remaining pins open)
PackageSOIC-8, PDIP-8
RoHSCompliant
Halogen FreeHalogen Free/BFR Free
Pb-FreePb-Free
AEC-Q100AEC-Q100 Qualified (NCV Prefix)
Input Voltage Range3.0 V to 40 V
Frequency OperationTo 100 kHz
Reference Precision2%
ESD ProtectionHuman Body Model 4000 V, Machine Model 400 V
All parameters (8)ExpandCollapse
Power
Power Supply Voltage40 Vdc
Supply Current4.0 mA (Max)
Switch Current1.5 A
Threshold Voltage1.25 V (Typ)
AC and DC characteristics
Frequency33 kHz (Typ)
Environment and package
Operating Ambient Temperature Range0 to +70 °C
Operating Junction Temperature+150 °C
Storage Temperature Range-65 to +150 °C

Pinout and package

Figure 2. Pin Connections
Figure 2. Pin Connections
Package: SOIC-8, PDIP-8
PinNameFunctionSource
1Drive Collector
2GND
31.25 V Reference
4Timing Capacitor
5Comparator Inverting Input
6Ipk Sense
7Switch Collector
8VCC

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DatasheetDatasheet · 1.6 MB · 2026-10-29DatasheetDatasheet · 1.6 MB · 2026-10-29
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