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MAX8546 - Low-Cost / Wide Input Range / Step-Down Controllers

Description

The MAX8545/MAX8546/MAX8548 are voltage-mode pulse-width-modulated (PWM), step-down DC-DC controllers ideal for a variety of cost-sensitive applications.

They drive low-cost N-channel MOSFETs for both the high-side switch and synchronous rectifier, and require no external current-sense resistor.

Features

  • MAX8545/MAX8546/MAX8548 Ordering Information PART MAX8545EUB MAX8546EUB MAX8548EUB TEMP RANGE -40°C to +85°C -40°C to +85°C -40°C to +85°C PIN-.

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Datasheet Details

Part number MAX8546
Manufacturer Maxim Integrated
File Size 287.92 KB
Description Low-Cost / Wide Input Range / Step-Down Controllers
Datasheet download datasheet MAX8546 Datasheet
Additional preview pages of the MAX8546 datasheet.

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Full PDF Text Transcription

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19-2795; Rev 0; 7/03 Low-Cost, Wide Input Range, Step-Down Controllers with Foldback Current Limit General Description The MAX8545/MAX8546/MAX8548 are voltage-mode pulse-width-modulated (PWM), step-down DC-DC controllers ideal for a variety of cost-sensitive applications. They drive low-cost N-channel MOSFETs for both the high-side switch and synchronous rectifier, and require no external current-sense resistor. These devices can supply output voltages as low as 0.8V. The MAX8545/MAX8546/MAX8548 have a wide 2.7V to 28V input range, and do not need any additional bias voltage. The output voltage can be precisely regulated from 0.8V to 0.83 x VIN. These devices can provide efficiency up to 95%.
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