LDO Regulator, 300 mA, High PSRR, with On/Off Control

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Overview

The MC33375 series are micropower low dropout (LDO) linear voltage regulators available in a wide variety of output voltages as well as packages, SOT-223,and SOP-8 surface mount packages. These devices feature a very low quiescent current and are capable of supplying output currents up to 300mA. Internal current and thermal limiting protection are provided by the presence of a short circuit at the output and an internal thermal shutdown circuit.

The MC33375 has a control pin that allows a logic level signal to turn-off or turn-on the regulator output.

Due to the low input-to-output voltage differential and bias current specifications, these devices are ideally suited for battery powered computer, consumer, and industrial equipment where an extension of useful battery life is desirable.

  • Battery Powered Consumer Products
  • HandHeld Instruments
  • Camcorders and Cameras
  • Camcorders and Cameras
  • Low Quiescent Current (0.3 mA in OFF mode; 125 mA in ON mode)
  • Low Input-to-Output Voltage Differential of 25 mV at IO = 10 mA, and 260 mV at IO = 300 mA
  • Extremely Tight Line and Load Regulation
  • Stable with Output Capacitance of only 0.33 mF for 2.5 V Output Voltage
  • Internal Current and Thermal Limiting
  • Logic Level ON/OFF Control

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Output

Polarity

VO (V)

IO Typ (A)

VI Min (V)

VI Max (V)

VDO Typ (V)

Iq Typ (mA)

PSRR (dB)

Noise (µVrms)

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Reference Price

MC33375D-2.5G

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Active

CAD Model

Pb

A

H

P

SOIC-8

1

260

TUBE

98

N

Single

Positive

2.5

0.3

2.5

12

0.26

0.125

75

46

Yes

No

Industrial

$0.3552

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MC33375ST-1.8T3G

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Active

CAD Model

Pb

A

H

P

SOT-223-4 / TO-261-4D

1

260

REEL

4000

N

Single

Positive

1.8

0.3

2.5

12

0.26

0.125

75

46

Yes

No

Industrial

$0.2501

More Details

MC33375ST-3.3T3G

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Active

CAD Model

Pb

A

H

P

SOT-223-4 / TO-261-4D

1

260

REEL

4000

N

Single

Positive

3.3

0.3

2.5

12

0.26

0.125

75

46

Yes

No

Industrial

$0.2807

More Details

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