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RT2862A - Synchronous Step-Down Converter

Description

The RT2862A is a high efficiency, current-mode synchronous step-down DC/DC converter that can deliver up to 3A output current over a wide input voltage range from 4.5V to 36V.

The device integrates 105mΩ high-side and 80mΩ low-side MOSFETs to achieve high conversion efficiency.

Features

  • z 4.5V to 36V Input Voltage Range z 3A Output Current z Internal N-MOSFETs z Current Mode Control z Frequency Operation : 300kHz to 1MHz z Adjustable Output Voltage from 0.8V to 30V z High Efficiency Up to 95% z Stable with Low ESR Ceramic Output Capacitors z Cycle-by-Cycle Current Limit z Input Under-Voltage Lockout z Output Under-Voltage Protection z Thermal Shutdown z Power Saving at Light Load.

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Datasheet Details

Part number RT2862A
Manufacturer Richtek
File Size 266.92 KB
Description Synchronous Step-Down Converter
Datasheet download datasheet RT2862A Datasheet

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Full PDF Text Transcription

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Design Sample & Tools Buy ® RT2862A 3A, 36V, Synchronous Step-Down Converter General Description The RT2862A is a high efficiency, current-mode synchronous step-down DC/DC converter that can deliver up to 3A output current over a wide input voltage range from 4.5V to 36V. The device integrates 105mΩ high-side and 80mΩ low-side MOSFETs to achieve high conversion efficiency. The current-mode control architecture supports fast transient response and simple external compensation. A cycle-by-cycle current limit function provides protection against shorted output and an internal soft-start eliminates input current surge during start-up.
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