MC34166TV
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onsemi MC34166TV

Manufacturer No:
MC34166TV
Manufacturer:
onsemi
Package:
Tube
Description:
IC REG BUCK BST ADJ 3.3A TO220-5
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The MC34166TV, part of the MC34166 and MC33166 series, is a high-performance fixed-frequency power switching regulator designed by onsemi. These monolithic devices are optimized for dc-to-dc converter applications, particularly in step-down, voltage-inverting, and step-up configurations. They integrate all the necessary active functions to implement these converters with a minimal number of external components. The MC34166TV is housed in a 5-lead TO-220 package and is suitable for various applications, including automotive, computer, industrial, and cost-sensitive consumer products.

Key Specifications

Characteristic Symbol Min Typ Max Unit
Power Supply Input Voltage VCC - - 40 V
Switch Output Voltage Range VO(switch) -1.5 - + Vin V
Voltage Feedback and Compensation Input Voltage Range VFB, VComp -1.0 - + 7.0 V
Output Switch Current - - - 3.0 A A
Oscillator Frequency fOSC 65 72 79 kHz
Operating Junction Temperature TJ - - +150 °C
Operating Ambient Temperature TA 0 - +70 °C
Thermal Resistance, Junction-to-Ambient �JA - - 65 °C/W
Thermal Resistance, Junction-to-Case �JC - - 5.0 °C/W

Key Features

  • Output Switch Current in Excess of 3.0 A
  • Fixed Frequency Oscillator (72 kHz) with On-Chip Timing
  • Provides 5.05 V Output without External Resistor Divider
  • Precision 2% Reference
  • 0% to 95% Output Duty Cycle
  • Cycle-by-Cycle Current Limiting
  • Undervoltage Lockout
  • Thermal Shutdown
  • Low Power Standby Mode (reduces power supply current to 36 μA)

Applications

The MC34166TV is versatile and can be used in various applications, including:

  • Automotive systems
  • Computer and industrial power supplies
  • Cost-sensitive consumer electronics
  • Step-down, voltage-inverting, and step-up converter configurations

Q & A

  1. What is the maximum output switch current of the MC34166TV?

    The maximum output switch current is in excess of 3.0 A.

  2. What is the fixed oscillator frequency of the MC34166TV?

    The fixed oscillator frequency is 72 kHz.

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

    The internal reference voltage has a precision of 2%.

  4. What protective features are included in the MC34166TV?

    The device includes cycle-by-cycle current limiting, undervoltage lockout, and thermal shutdown.

  5. What is the operating ambient temperature range for the MC34166TV?

    The operating ambient temperature range is 0°C to +70°C.

  6. What is the thermal shutdown temperature for the MC34166TV?

    The thermal shutdown typically occurs at 170°C.

  7. Can the MC34166TV be used in step-up converter applications?

    Yes, the MC34166TV can be used cost-effectively in step-up converter applications.

  8. What is the power supply current in standby mode?

    The power supply current in standby mode is reduced to 36 μA.

  9. What is the maximum power supply input voltage for the MC34166TV?

    The maximum power supply input voltage is 40 V.

  10. What type of package is the MC34166TV available in?

    The MC34166TV is available in a 5-lead TO-220 package.

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):7.5V
Voltage - Input (Max):40V
Voltage - Output (Min/Fixed):5.05V
Voltage - Output (Max):40V (Switch)
Current - Output:3.3A (Switch)
Frequency - Switching:72kHz
Synchronous Rectifier:No
Operating Temperature:0°C ~ 70°C (TA)
Mounting Type:Through Hole
Package / Case:TO-220-5 Formed Leads
Supplier Device Package:TO-220-5
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Similar Products

Part Number MC34166TV MC34166TVG MC34167TV MC33166TV MC34166T MC34166TG MC34166TH
Manufacturer onsemi onsemi onsemi onsemi onsemi onsemi onsemi
Product Status Obsolete Active Obsolete Obsolete Obsolete Active Obsolete
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 Step-Up, Step-Down
Output Configuration Positive or Negative 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 Buck, Boost
Output Type Adjustable Adjustable Adjustable Adjustable Adjustable Adjustable Adjustable
Number of Outputs 1 1 1 1 1 1 1
Voltage - Input (Min) 7.5V 7.5V 7.5V 7.5V 7.5V 7.5V 7.5V
Voltage - Input (Max) 40V 40V 40V 40V 40V 40V 40V
Voltage - Output (Min/Fixed) 5.05V 5.05V 5.05V 5.05V 5.05V 5.05V 5.05V
Voltage - Output (Max) 40V (Switch) 40V (Switch) 40V (Switch) 40V (Switch) 40V (Switch) 40V (Switch) 40V (Switch)
Current - Output 3.3A (Switch) 3.3A (Switch) 5.5A (Switch) 3.3A (Switch) 3.3A (Switch) 3.3A (Switch) 3.3A (Switch)
Frequency - Switching 72kHz 72kHz 72kHz 72kHz 72kHz 72kHz 72kHz
Synchronous Rectifier No 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) 0°C ~ 70°C (TA)
Mounting Type Through Hole Through Hole Through Hole Through Hole Through Hole Through Hole Through Hole
Package / Case TO-220-5 Formed Leads TO-220-5 Formed Leads TO-220-5 Formed Leads TO-220-5 Formed Leads TO-220-5 TO-220-5 TO-220-5 Formed Leads
Supplier Device Package TO-220-5 TO-220-5 TO-220-5 TO-220-5 TO-220-5 TO-220-5 TO-220-5 Horizontal

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