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RT2852BH - Synchronous Step-Down Converter

General Description

The RT2852BH is a high efficiency, monolithic synchronous step-down DC-DC converter that can deliver up to 3A output current from a 4.5V to 18V input supply.

Key Features

  • Low RDS(ON) Power MOSFET Switches 46mΩ/36mΩ.
  • Input Voltage Range : 4.5V to 18V.
  • Adjustable Switching Frequency : 200kHz to 1.2MHz.
  • Current-Mode Control.
  • Synchronous to External Clock : 200kHz to 1.2MHz.
  • Accurate Voltage Reference 0.8V ± 1.25%, Over.
  • 40°C to 105°C.
  • Monotonic Start-Up into Pre-biased Outputs.
  • Adjustable Soft-Start.
  • Power Good Indicator.
  • Under-Voltage and Over-Voltage Protection.
  • Input Under-Voltage Lockout Ordering I.

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Datasheet Details

Part number RT2852BH
Manufacturer Richtek
File Size 263.04 KB
Description Synchronous Step-Down Converter
Datasheet download datasheet RT2852BH Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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® RT2852BH 3A, 18V, Synchronous Step-Down Converter General Description The RT2852BH is a high efficiency, monolithic synchronous step-down DC-DC converter that can deliver up to 3A output current from a 4.5V to 18V input supply. The RT2852BH current-mode architecture with external compensation allows the transient response to be optimized over a wide range of loads and output capacitors. Cycle-by-cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge during start-up. Fault condition protections include output under-voltage protection, output over-voltage protection, and over-temperature protection. The low current shutdown mode provides output disconnection, enabling easy power management in battery-powered systems.