Buck / Boost / Inverting Regulator, Switching, Constant Current, 1.5 A, for HB-LEDs

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Overview

The NCP3065 is a monolithic Buck Boost Inverting Switching Regulator designed to deliver constant current for powering high brightness LEDs (HBLED). The device has a very low feedback voltage of 235 mV (nominal) which is used to regulate the average current of the LED string. In addition, the NCP3065 has a wide input voltage up to 40 V to allow it to operate from 12 Vac or 12 Vdc supplies commonly used for lighting applications as well as unregulated supplies such as Lead Acid batteries.

The device can be configured in a controller topology with the addition of an external transistor to support higher LED currents beyond the 1.5 A rated switch current of the internal transistor. The NCP3065 switching regulator can be configured in Step-Down (Buck), Step-Up (boost) or SEPIC topologies with a minimum number of external components. Available with ENABLE feature under part number NCP3066.

  • Constant Current Source
  • High Power LED Driver
  • High Brightness LED (HB-LED)
  • Automotive and Marine Lighting (LED)
  • Low Voltage LED Landscape Lighting
  • MR-16 Replacement
  • Integrated 1.5 A Switch
  • Input Voltage Range from 3 V to 40 V
  • Low Feedback Voltage of 235 mV
  • Cycle-by-Cycle Current Limit
  • No Control Loop Compensation Required
  • Frequency of Operation Adjustable up to 250 kHz
  • Operation With All Ceramic Output Capacitors or No Output Capacitance
  • Analog and Digital PWM Dimming Capability
  • Internal Thermal Shutdown with Hysteresis

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Product

Status

ECAD Models

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Case Outline

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MSL Temp (°C)

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Control Mode

VCC Min (V)

VCC Max (V)

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IO Typ (A)

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NCV3065PG

Obsolete

Pb

A

H

P

PDIP-8

NA

0

TUBE

50

N

Step-Up/Step-Down

Hysteretic

3

40

40

1.5

85

250

Price N/A

More Details

NCP3065PG

Obsolete

Pb

A

H

P

PDIP-8

NA

0

TUBE

50

N

Step-Up/Step-Down

Hysteretic

3

40

40

1.5

85

250

Price N/A

More Details

NCV3065MNTXG

Active

Pb

A

H

P

DFN-8

1

260

REEL

4000

Y

Step-Up/Step-Down

Hysteretic

3

40

40

1.5

85

250

$0.8212

More Details

NCV3065DR2G

Active

Pb

A

H

P

SOIC-8

1

260

REEL

2500

Y

Step-Up/Step-Down

Hysteretic

3

40

40

1.5

85

250

$0.6072

More Details

NCP3065MNTXG

Active

Pb

A

H

P

DFN-8

1

260

REEL

4000

Y

Step-Up/Step-Down

Hysteretic

3

40

40

1.5

85

250

$0.9139

More Details

NCP3065DR2G

Active

Pb

A

H

P

SOIC-8

1

260

REEL

2500

Y

Step-Up/Step-Down

Hysteretic

3

40

40

1.5

85

250

$0.653

More Details

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