Converters | NCP1402

Boost Converter, PFM, Micropower, 200 mA

Obsolete

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Products

Overview

The NCP1402 series are monolithic micropower step-up DC to DC converter that are specially designed for powering portable equipment from one or two cell battery packs.These devices are designed to start-up with a cell voltage of 0.8 V and operate down to less than 0.3 V. With only three external components, this series allow a simple means to implement highly efficient converters that are capable of up to 200 mA of output current at Vin = 2.0 V, VOUT = 3.0 V.

Each device consists of an on-chip PFM (Pulse Frequency Modulation) oscillator, PFM controller, PFM comparator, soft-start, voltage reference, feedback resistors, driver, and power MOSFET switch with current limit protection. Additionally, a chip enable feature is provided to power down the converter for extended battery life.

The NCP1402 device series are available in the Thin SOT-23-5 package with five standard regulated output voltages. Additional voltages that range from 1.8 V to 5.0 V in 100 mV steps can be manufactured.

  • Cellular Telephones
  • Pagers
  • Personal Digital Assistants (PDA)
  • Electronic Games
  • Portable Audio (MP3)
  • Camcorders
  • Digital Cameras
  • Handheld Instruments

  • Extremely Low Start-Up Voltage of 0.8 V
  • Operation Down to Less than 0.3 V
  • High Efficiency 85% (Vin = 2.0 V, VOUT = 3.0 V, 70 mA)
  • Low Operating Current of 30 µA (VOUT = 1.9 V)
  • Output Voltage Accuracy +/- 2.5%
  • Low Converter Ripple with Typical 30 mV
  • Only Three External Components Are Required
  • Chip Enable Power Down Capability for Extended Battery Life
  • Micro Miniature Thin SOT–23–5 Packages
  • Pb-Free Packages are Available

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Reference Price

NCP1402SN19T1G

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Obsolete

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

483

1

260

REEL

3000

N

Step-Up

Voltage Mode

0.8

5.5

1.9

Up to 0.2

85

Up to 200

Price N/A

More Details

NCP1402SN27T1G

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Obsolete

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

483

1

260

REEL

3000

N

Step-Up

Voltage Mode

0.8

5.5

2.7

Up to 0.2

85

Up to 200

Price N/A

More Details

NCP1402SN30T1G

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Obsolete

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

483

1

260

REEL

3000

N

Step-Up

Voltage Mode

0.8

5.5

3

Up to 0.2

85

Up to 200

Price N/A

More Details

NCP1402SN33T1G

Loading...

Obsolete

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

483

1

260

REEL

3000

N

Step-Up

Voltage Mode

0.8

5.5

3.3

Up to 0.2

85

Up to 200

Price N/A

More Details

NCP1402SN40T1G

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Obsolete

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

483

1

260

REEL

3000

N

Step-Up

Voltage Mode

0.8

5.5

4

Up to 0.2

85

Up to 200

Price N/A

More Details

NCP1402SN50T1G

Loading...

Obsolete

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

483

1

260

REEL

3000

N

Step-Up

Voltage Mode

0.8

5.5

5

Up to 0.2

85

Up to 200

Price N/A

More Details

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