MC34063ADR
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Texas Instruments MC34063ADR

Manufacturer No:
MC34063ADR
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC REG BUCK BST ADJ 1.5A 8SOIC
Delivery:
Payment:
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Product Introduction

Overview

The MC34063ADR, produced by Texas Instruments, is a versatile 1.5-A peak boost, buck, and inverting switching regulator. This device is part of the MC34063A series, which includes all the primary circuitry necessary for building simple DC-DC converters. The MC34063ADR operates in a SOIC (D) package with 8 pins and is characterized for operation from 0°C to 70°C. It is designed to be used in a variety of DC-DC converter topologies with minimal external components.

Key Specifications

Parameter Min Typ Max Unit
Input Voltage Range 3 40 V
Output Switch Current 1.5 A
Oscillator Frequency 24 33 42 kHz
Precision Internal Reference 2%
Operating Temperature Range 0 70 °C
Supply Current (VCC = 5 V to 40 V) 4 mA
Short-Circuit Current Limiting 1.1 A
Output Ripple (VIN = 25 V, IO = 500 mA) 120 mVpp
Efficiency (VIN = 25 V, IO = 500 mA) 83.7%

Key Features

  • Wide Input Voltage Range: 3 V to 40 V
  • High Output Switch Current: Up to 1.5 A
  • Adjustable Output Voltage
  • Oscillator Frequency Up to 100 kHz
  • Precision Internal Reference: 2%
  • Short-Circuit Current Limiting
  • Low Standby Current
  • Internal temperature-compensated reference, comparator, controlled duty cycle oscillator with active current limit circuit, driver, and high-current output switch

Applications

The MC34063ADR is suitable for various DC-DC converter applications, including:

  • Boost converters
  • Buck converters
  • Inverting converters
  • Step-Up and Step-Down converters
  • Voltage-Inverting applications

These devices are particularly useful in systems where minimal external components are desired, making them ideal for compact and efficient power supply designs.

Q & A

  1. What is the input voltage range of the MC34063ADR?

    The input voltage range is from 3 V to 40 V.

  2. What is the maximum output switch current of the MC34063ADR?

    The maximum output switch current is up to 1.5 A.

  3. What is the oscillator frequency range of the MC34063ADR?

    The oscillator frequency range is up to 100 kHz.

  4. What is the precision of the internal reference voltage?

    The precision of the internal reference voltage is 2%.

  5. Does the MC34063ADR have short-circuit current limiting?

    Yes, the MC34063ADR has short-circuit current limiting.

  6. What is the operating temperature range of the MC34063ADR?

    The operating temperature range is from 0°C to 70°C.

  7. What types of DC-DC converters can be built using the MC34063ADR?

    The MC34063ADR can be used to build boost, buck, and inverting DC-DC converters.

  8. What is the recommended decoupling capacitor for the input voltage?

    A 1000-µF decoupling capacitor is recommended for the input voltage.

  9. Does the MC34063ADR require minimal external components?

    Yes, the MC34063ADR requires minimal external components to build DC-DC converters.

  10. What is the typical supply current of the MC34063ADR?

    The typical supply current is up to 4 mA.

Product Attributes

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:0°C ~ 70°C (TA)
Mounting Type:Surface Mount
Package / Case:8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:8-SOIC
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Similar Products

Part Number MC34063ADR MC34063ADX MC34063ADR2 MC33063ADR MC34063AD MC34063ADG
Manufacturer Texas Instruments Fairchild Semiconductor onsemi Texas Instruments Fairchild Semiconductor onsemi
Product Status Active Obsolete Obsolete Active Obsolete Active
Function Step-Up, Step-Down Step-Up, Step-Down Step-Up, Step-Down Step-Up, Step-Down Step-Up, Step-Down Step-Up, Step-Down
Output Configuration Positive or Negative Positive or Negative Positive or Negative Positive or Negative Positive or Negative Positive or Negative
Topology Buck, Boost Buck, Boost Buck, Boost Buck, Boost Buck, Boost Buck, Boost
Output Type Adjustable Adjustable Adjustable Adjustable Adjustable Adjustable
Number of Outputs 1 1 1 1 1 1
Voltage - Input (Min) 3V 3V 3V 3V 3V 3V
Voltage - Input (Max) 40V 40V 40V 40V 40V 40V
Voltage - Output (Min/Fixed) 1.25V 1.24V 1.25V 1.25V 1.25V 1.25V
Voltage - Output (Max) 40V (Switch) 40V (Switch) 40V (Switch) 40V (Switch) 40V (Switch) 40V (Switch)
Current - Output 1.5A (Switch) 1.5A (Switch) 1.5A (Switch) 1.5A (Switch) 1.5A (Switch) 1.5A (Switch)
Frequency - Switching 100kHz 100Hz ~ 100kHz 100kHz 100kHz 100kHz 100kHz
Synchronous Rectifier No No No No No No
Operating Temperature 0°C ~ 70°C (TA) 0°C ~ 70°C (TA) 0°C ~ 70°C (TA) -40°C ~ 85°C (TA) 0°C ~ 70°C (TA) 0°C ~ 70°C (TA)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC 8-SOIC 8-SOIC 8-SOIC 8-SOIC 8-SOIC

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