Part Number: MC33063ADR

Manufacturer: Texas Instruments

Description: IC REG BUCK BST ADJ 1.5A 8SOIC

Shipped from: Shenzhen/HK Warehouse

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Technical Specifications of MC33063ADR

Datasheet  MC33063ADR datasheet
Category Integrated Circuits (ICs)
Family PMIC – Voltage Regulators – DC DC Switching Regulators
Manufacturer Texas Instruments
Packaging Cut Tape (CT)
Part Status Active
Function Step-Up, Step-Down
Output Configuration Positive or Negative
Topology Buck, Boost
Output Type Adjustable
Number of Outputs 1
Voltage – Input (Min) 3V
Voltage – Input (Max) 40V
Voltage – Output (Min/Fixed) 1.25V
Voltage – Output (Max) 40V (Switch)
Current – Output 1.5A (Switch)
Frequency – Switching 100kHz
Synchronous Rectifier No
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154″, 3.90mm Width)
Supplier Device Package 8-SOIC

MC33063ADR Introduction

Are you looking for an IC that is straightforward to utilize to construct DC-DC converters? The MC33063A and MC34063A devices are your best bet. These adaptable parts have all the basic circuitry required to create converters using the boost, buck, and inverting topologies. The gadgets, which require few external components to operate, include a PWM controller, a high-current output switch, an oscillator, a comparator, and a precise internal reference. These devices are ideal for various applications, from portable blood gas analyzers to telecommunications and consumer computer devices, and have a wide input voltage range of 3 V to 40 V and adjustable output voltage. Reduce the length of the feedback loop layout traces as much as possible, and make sure the trace from VIN to pin 1 is thick to handle higher current. Start using the MC33063A and MC34063A gadgets right away.

MC33063ADR Description

Devices like the MC33063A and MC34063A are simple DC-DC converter ICs with everything you need to get started. Main components of such gadgets include a temperature-compensated internal reference, a comparator, an oscillator, a driver, a PWM controller with active current limiting, and a high-current output switch. Because of this, the devices can be used to construct converters of the buck, boost, and inverting topologies with a minimum of external components. The MC33063A device has an operating temperature range of -40 degrees Celsius to 85 degrees Celsius, whereas the MC34063A device has a similar range of 0 degrees Celsius to 70 degrees Celsius.

MC33063ADR Features

  • Wide Input Voltage Range: 3 V to 40 V.
  • High Output Switch Current: Up to 1.5 A.
  • Adjustable Output Voltage.
  • Low Standby Current.

MC33063ADR Specifications

  • The product complies with the EU Restriction of Hazardous Substances Directive, as denoted by the marking “EU RoHS Compliant.”
  • This item is subject to the Export Administration Rules and has been assigned the Export Control Classification Number (ECCN) (US) EAR99 by the United States Department of Commerce.
  • The part is live and can be purchased at this time.
  • For international trade, goods are classified according to the Harmonized Tariff Schedule (HTS).
  • Substances of Very High Concern (SVHC) labels tell you whether a product has any potentially dangerous compounds for people or the environment.
  • The automotive spec tells you if the product is designed for or suitable for use in a vehicle.
  • Production Part Approval Procedure (PPAP): This indicates whether the product has undergone the rigorous PPAP testing required for automotive components.
  • Type: Indicates whether the converter is a step-up or step-down device.
  • The output type indicates whether or not the voltage at the device’s end is variable.
  • The 42 kilohertz value listed here is the switching frequency of the gadget in question.
  • Whether or not the gadget is a switching regulator is indicated by this setting.
  • This device has a single output channel, which is indicated by the value for “number of outputs.”
  • This device has an adjustable output voltage range of 1.25 V to 40 V, specified by the Output Voltage (V) setting.
  • The minimum input voltage for this device is 3 V, as specified by the Min Input Voltage (V) setting.
  • This device has a maximum input voltage of 40 V, specified here.
  • This value determines the supply voltage range for the device, which is 3 V to 40 V.
  • The device has a typical switching current of 1.5 A, as specified by the parameter “Typical Switch Current (A).”
  • This device has a typical quiescent current of 4000 A, which means it draws that much current when it is not switching.
  • Set here is the device’s minimum temperature range, which is -40 degrees Celsius.
  • The maximum temperature at which this gadget can function is indicated here; it is set at 85 degrees Celsius.
  • Packaging: This field indicates that the gadget will be shipped in tape and reel form.
  • When it comes to mounting, this item is surface mount, as indicated by the corresponding entry.
  • Maximum Package Height is 1.5 mm; thus, that’s what this value denotes for this item.
  • Dimensional Width of Package 3.98 mm is the maximum width of the packaging allowed for this product.
  • The maximum length of the packaging for this device is 5 mm, as specified by this parameter.
  • Specifies how many times the PCB layout of the device has been modified.
  • The device’s standard package name, SO, is set here.
  • The SOIC package used by the manufacturer to ship this component is indicated below.
  • A device’s pin count, in this case 8.
  • Lead Shape: This parameter defines the lead shapes.

MC33063ADR Applications

  • Blood Gas Analyzers: Portable
  • Cable Solutions
  • HMIs (Human Machine Interfaces)
  • Telecommunications
  • Portable Devices
  • Consumer & Computing
  • Test & Measurement

Detailed Description

You may construct basic DC-DC converters with the help of the MC33063A and MC34063A, two simple ICs providing all the necessary main circuitry. These gadgets have active current limiting on their PWM controllers, drivers, high-current output switches, and a temperature-compensated reference built in. In this way, the devices can be used to construct converters of the boost, buck, and inverting topologies with a minimum of external components. MC33063A devices are rated for use between -40 and 85 degrees Celsius, whereas MC34063A devices are rated for use between 0 and 70 degrees Celsius.

Power Supply Recommendations

The input range of this device is from 3 V to 40 V. A decoupling capacitor of 1000 F should be installed on the input.


● Layout Guidelines

Reduce the length of traces in the feedback loop layout as much as possible to prevent IR drop. Moreover, the input decoupling capacitor loop should be kept to a minimum. The wire between VIN and the device’s pin 1 should be beefed up so it can bear the increased current.


To sum up, if you need to change the voltage of your electronics, the Texas Instruments MC33063ADR DC to DC converter is a fantastic option. This efficient converter has a wide input voltage range (1.25% to 40V) and a high output current output (up to 1.5 A) from a single output. It can operate between -40 degrees Celsius and 85 degrees Celsius and has a switching frequency of 24 to 42 kilohertz, so it may be used in various situations. For those needing this or other electronic components, ICRFQ is a reliable and affordable option with a vast selection of components to meet your needs. Contact us today to source the MC33063ADR DC to DC converter and take your electronic designs to the next level.

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