Buck / Boost / Inverting Regulator, Switching, 3.0 A

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Overview

The MC34166, MC33166 series are high performance fixed frequency power switching regulators that contain the primary functions required for dc-dc converters. This series was specifically designed to be incorporated in buck, boost and inverting applications with a minimum number of external components and can also be used cost effectively in step-up applications.

These Buck Boost Inverting Switching Regulators consist of an internal temperature compensated reference, fixed frequency oscillator with on-chip timing components, latching pulse width modulator for single pulse metering, high gain error amplifier and a high current output switch.

Protective features consist of cycle-by-cycle current limiting, undervoltage lockout, and thermal shutdown. Also included is a low power standby mode that reduces power supply current to 36 mA.

  • 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 with Hysteresis
  • Internal Thermal Shutdown
  • Operation from 7.5 V to 40 V
  • Standby Mode Reduces Power Supply Current to 36 µA
  • Economical 5-Lead TO-220 Package with Two Optional Leadforms.
  • Also Available in Surface Mount D2PAK Package
  • Moisture Sensitivity Level (MSL) Equals 1
  • Pb-Free Packages are Available

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Reference Price

MC33166D2TG

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Active

CAD Model

Pb

A

H

P

D2PAK-5

1

260

TUBE

50

N

Step-Up/Step-Down

Voltage Mode

7.5

40

40

3

83.3

72

$1.9318

More Details

MC33166D2TR4G

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Active

CAD Model

Pb

A

H

P

D2PAK-5

1

260

REEL

800

N

Step-Up/Step-Down

Voltage Mode

7.5

40

40

3

83.3

72

$1.8764

More Details

MC33166TVG

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Active

CAD Model

Pb

A

H

P

TO-220-5

NA

0

TUBE

50

N

Step-Up/Step-Down

Voltage Mode

7.5

40

40

3

83.3

72

$1.4904

More Details

MC34166D2TR4G

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Active

CAD Model

Pb

A

H

P

D2PAK-5

1

260

REEL

800

N

Step-Up/Step-Down

Voltage Mode

7.5

40

40

3

83.3

72

$1.8813

More Details

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