Charge Pumps | MAX829

50 mA, 1.15-5.5 V Switched Capacitor Voltage Converter

Obsolete

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Overview

The MAX828 and MAX829 are CMOS charge-pump voltage converters in ultra-small SOT-23 5 lead packages. They invert and/or double an input voltage which can range from +1.5V to +5.5V. Conversion efficiency is typically >95%. Switching frequency is 12kHz for the MAX828 and 35kHz for the MAX829.

External component requirement is only two capacitors (3.3μF nominal) for standard voltage inverter applications. With a few additional components a positive doubler can also be built. All other circuitry, including control, oscillator, power MOSFETs are integrated on-chip. Supply current is 50 μA (MAX828) and 115 μA (MAX829).

The MAX828 and MAX829 are available in a SOT-23 5 lead surface mount package.

  • LCD Panel Bias
  • Cellular Phones
  • Pagers
  • Personal Digital Assistants
  • Electronic Games
  • Digital Cameras
  • Camcorders
  • Hand Held Instruments

  • Charge Pump in Thin SOT23-5 Lead Package
  • >95% Voltage Conversion Efficiency
  • Voltage Inversion and/or Doubling
  • Low 50 mA (MAX828) Quiescent Current
  • Operates from +1.5V to +5.5V
  • Up to 25 mA Output Current
  • Only Two External Capacitors Required
  • Tested Operating Temperature Range: -40°C to +85°C
  • Pb-Free Packages are Available

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Reference Price

MAX828EUK

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Obsolete

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

483

1

235

REEL

3000

N

1.15 to 5.5

-Vin or 2Vin

50

90

12

No

Price N/A

More Details

MAX828EUKG

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Obsolete

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

483

1

260

REEL

3000

N

1.15 to 5.5

-Vin or 2Vin

50

90

12

No

Price N/A

More Details

MAX829EUK

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Obsolete

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

483

1

235

REEL

3000

N

1.15 to 5.5

-Vin or 2Vin

50

20

35

No

Price N/A

More Details

MAX829EUKG

Loading...

Obsolete

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

483

1

260

REEL

3000

N

1.15 to 5.5

-Vin or 2Vin

50

20

35

No

Price N/A

More Details

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