Critical Conduction Mode SMPS Controller

Last Shipments

Overview

The MC33364 series are variable frequency SMPS controllers that operate in the critical conduction mode. They are optimized for high density power supplies requiring minimum board area, reduced component count, and low power dissipation. Integration of the high voltage startup saves approximately 0.7 W of power compared to the value of the resistor bootstrapped circuits.

Each MC33364 features an on-board reference, UVLO function, a watchdog timer to initiate output switching, a zero current detector to ensure critical conduction operation, a current sensing comparator, leading edge blanking, a CMOS driver and cycle-by-cycle current limiting.

The MC33364D1 has an internal 126 kHz frequency clamp. The MC33364D2 is available without an internal frequency clamp. The MC33364D has an internal 126 kHz frequency clamp which is pinned out, so that the designer can adjust the clamp frequency by connecting appropriate values of resistance.

  • Lossless Off-Line Startup
  • Leading Edge Blanking for Noise Immunity
  • Watchdog Timer to Initiate Switching
  • Operating Temperature Range -25° to +125°C
  • Shutdown Capability
  • Over Temperature Protection
  • Optional/Adjustable Frequency Clamp to Limit EMI

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6

Product

Status

CAD Models

Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Topology

Control Mode

fsw Typ (kHz)

Stand-by Mode

UVLO (V)

Short Circuit Protection

Latch

Soft Start

VCC Max (V)

Drive Cap. (mA)

Reference Price

MC33364D1G

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Obsolete

CAD Model

Pb

A

H

P

SOIC-8

1

260

TUBE

98

N

Flyback

Current Mode

Up to 150

Yes

Yes

No

No

No

16

220 / 600

Price N/A

More Details

MC33364D1R2G

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Last Shipments

CAD Model

Pb

A

H

P

SOIC-8

1

260

REEL

2500

N

Flyback

Current Mode

Up to 150

Yes

Yes

No

No

No

16

220 / 600

Price N/A

More Details

MC33364D2G

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Obsolete

CAD Model

Pb

A

H

P

SOIC-8

1

260

TUBE

98

N

Flyback

Current Mode

Up to 150

Yes

Yes

No

No

No

16

220 / 600

Price N/A

More Details

MC33364D2R2G

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Obsolete

CAD Model

Pb

A

H

P

SOIC-8

1

260

REEL

2500

N

Flyback

Current Mode

Up to 150

Yes

Yes

No

No

No

16

220 / 600

Price N/A

More Details

MC33364DG

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Obsolete

CAD Model

Pb

A

H

P

SOIC-16

3

260

TUBE

48

N

Flyback

Current Mode

Up to 150

Yes

Yes

No

No

No

16

220 / 600

Price N/A

More Details

MC33364DR2G

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Last Shipments

CAD Model

Pb

A

H

P

SOIC-16

3

260

REEL

2500

N

Flyback

Current Mode

Up to 150

Yes

Yes

No

No

No

16

220 / 600

Price N/A

More Details

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