IC REG BUCK BOOST INV ADJ 8SOIC Hello, guys. This is Rose. Today we will have a discussion about MC34063A.
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Aug 19, 2021
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How to make 3A phone charger using ic regulator 34063A without PCB
IC REG BUCK BOOST INV ADJ 8SOIC
Hello, guys. This is Rose. Today we will have a discussion about MC34063A. MC34063A is a monolithic control circuit integrated chip containing all the primary circuitry and functions needed for building simple DC-DC converters.This article mainly introduce application,price, pinout and other detailed information about Texas Instruments MC34063A.
MC34063ADR
MC34063A is a monolithic control circuit integrated chip containing all the primary circuitry and functions needed for building simple DC-DC converters.
These devices primarily consist of an internal temperature-compensated reference, a comparator, an oscillator, a PWM controller with active current limiting, a driver, and a high-current output switch.
This series was specifically designed to be incorporated in StepDown and StepUp and Voltage Inverting applications with a minimum number of external components. It has a switching frequency of up to 100 kHz.
Due to its voltage conversion property, it is used in DC-to-DC converters. You can adjust its output voltage by only two external resistors. It operates in a temperature range of 0 °C to 70 °C. It is used in voltage regulation applications and devices like chargers.
Symbol
Footprint
3D Model
• DC-DC converter IC (Buck, Boost and Inverter)
• Wide input voltage range: 3 V to 40 V
• Adjustable output voltage from 1.25V to 40V
• High output switch current: Up to 1.5 A
• Oscillator frequency up to 100 kHz
• Short circuit current limiting
• Driver collector current: 100mA
• Precision internal reference: 2%
• Quiescent current is 2.5 mA (Typ.) which is very low.
• A short circuit fault protection circuit is integrated inside chip.
• Output voltage adjustable
• Adjustable output voltage
• Low standby current
Texas Instruments MC34063ADR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments MC34063ADR.
Texas Instruments MC34063ADR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments MC34063ADR.
| Product Attribute | Attribute Value | |
|---|---|---|
| Lifecycle Status | ACTIVE (Last Updated: 3 days ago) | |
| Factory Lead Time | 6 Weeks | |
| Contact Plating | Gold | |
| Mounting Type | Surface Mount | |
| Package / Case | 8-SOIC (0.154, 3.90mm Width) | |
| Surface Mount | YES | |
| Number of Pins | 8Pins | |
| Weight | 72.603129mg | |
| Operating Temperature | 0°C~70°C TA | |
| Packaging | Tape & Reel (TR) | |
| JESD-609 Code | e4 | |
| Pbfree Code | yes | |
| Part Status | Active | |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | |
| Number of Terminations | 8Terminations | |
| Termination | SMD/SMT |
| Product Attribute | Attribute Value | |
|---|---|---|
| ECCN Code | EAR99 | |
| Terminal Position | DUAL | |
| Terminal Form | GULL WING | |
| Peak Reflow Temperature (Cel) | 260 | |
| Supply Voltage | 5V | |
| Base Part Number | MC34063 | |
| Function | Step-Up, Step-Down | |
| Number of Outputs | 1Output | |
| Output Voltage | 1.55V | |
| Output Type | Adjustable | |
| Max Output Current | 750mA | |
| Voltage - Input (Min) | 3V | |
| Input Voltage-Nom | 5V | |
| Analog IC - Other Type | SWITCHING REGULATOR | |
| Output Configuration | Positive or Negative | |
| Quiescent Current | 4mA |
| Product Attribute | Attribute Value | |
|---|---|---|
| Max Output Voltage | 40V | |
| Voltage - Output (Min/Fixed) | 1.25V | |
| Topology | Buck, Boost | |
| Control Mode | VOLTAGE-MODE | |
| Frequency - Switching | 100kHz | |
| Control Technique | PULSE WIDTH MODULATION | |
| Synchronous Rectifier | No | |
| Min Output Voltage | 1.55V | |
| Switcher Configuration | BUCK-BOOST | |
| Height | 1.75mm | |
| Length | 4.9mm | |
| Width | 3.91mm | |
| Thickness | 1.58mm | |
| REACH SVHC | No SVHC | |
| RoHS Status | ROHS3 Compliant | |
| Lead Free | Lead Free |
The MC34063A is a DC-DC converter IC, which is normally used to design Buck (step-down), Boost (Step-UP) or Inverter (DC to AC) circuits. It is an industrial standard IC and can be found in Automobile phone chargers to regulate 5V for mobile phones. Since the regulation occurs through switching it is very efficient than linear circuits.
The input voltage for the IC is from 3V to 40V and the output voltage can be varied from 1.25V to 40V and the maximum output current can be upto 1.5A. So if you looking to design DC-DC converter with above specifications then MC34063A might be of interest to you.
As told earlier the MC34063A can be used to design a Buck, Boost or Inverter circuit. The sample application circuit diagram for all three can be found in the MC34063A datasheet.
The IC requires minimum number of components to be operational. The pin 1 and 2 has a pair of transistors between them which is switching to regulate the required output voltage. The pin 3 is connected to a capacitor which determines the switching frequency of the IC. The output voltage is set by forming a potential divider at pin 5. The formulae to calculate the output voltage can be given by.
Vout = 1.25(1 + R8/R7)
A sample MC34063A circuit diagram for buck and boost circuit using the MC3463A IC is shown below.
In the above two circuits, the boost converter is designed to convert 12V to 28V with a current rating of 125mA and the buck converter is used to convert 25V to 28V with a current rating of 500mA. There are also options to limit the output current and set the switching frequency using the below formulas in the table, also available on the MC34063A datasheet linked below.
●Battery operated circuits
●Measurement and test devices
●Consumer and computing electronics
●Portable chargers and blood gas Analyzers
●Telecommunications
●Medical equipment
Texas Instruments Incorporated (TI) is an American technology company headquartered in Dallas, Texas, that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. It is one of the top 10 semiconductor companies worldwide based on sales volume.The company's focus is on developing analog chips and embedded processors, which account for more than 80% of its revenue. TI also produces TI digital light processing technology and education technologyproducts including calculators, microcontrollers and multi-core processors. The company holds 45,000 patents worldwide as of 2016.
Download datasheets and manufacturer documentation for Texas Instruments MC34063ADR.
Download datasheets and manufacturer documentation for MC34063ADR
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