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reference designRHP50000

Analog Devices RHP50000

5.5V, 12.5A Synchronous Step-Down Silent Switcher 2

Overview

TopologyBuck Converter
Input voltage2.25-5.5 V
Switching frequency500-5000 kHz
Output 10.5 V / 12.5 A
Output 20.5 V / 12.5 A
IC revisionA

Description

The RHP50000-CSL is a very small, low noise, monolithic step-down DC/DC converter capable of providing up to 12.5A of output current from a 2.25V to 5.5V input supply. The device employs Silent Switcher 2 architecture with internal hot loop bypass capacitors to achieve both low EMI and high efficiency at switching frequencies as high as 5MHz. For systems with higher power requirements, multi-phasing parallel converters is readily implemented.

Features

  • No Single-Event Latch-Up (SEL) up to 47.0 MeV·cm2/mg at VIN ≤ 3.6V
  • Total Ionizing Dose (TID) Assured up to 30krad(Si)
  • Silent Switcher®2 Architecture: Ultralow EMI Emissions
  • High Efficiency—4.5mΩ NMOS and 16mΩ PMOS
  • Wide Bandwidth, Fast Transient Response
  • Safely Tolerates Inductor Saturation in Overload
  • VIN Range: 2.25V to 5.5V
  • VOUT Range: 0.5V to VIN
  • VOUT Accuracy: ±1% with Remote Sense
  • Minimum On-Time: 35ns
  • Programmable Frequency to 5MHz
  • Shutdown Current: 1μA
  • Output Soft-Start with Voltage Tracking
  • Power Good Output
  • Die Temperature Monitor
  • Configurable for Paralleling Power Stages in ForcedContinuous Mode
  • Thermally Enhanced 3mm × 3mm LQFN Package

Typical applications

  • Distributed DC Power Systems (Point-of-Load); FPGA, ASIC, μP Core Supplies
  • Low Earth Orbit (LEO) Satellites, Avionics, Point-to-Point Communication Systems
  • Point-to-Point Communication Systems

More information

Parts approved by Analog Devices

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
LR(µH)
IR(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
SamplesAvailability & Sample
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744340300055
SPECWE-HCM SMT High Current Flat Wire Inductor, 0.055 µH, 0.055 µH

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCM SMT High Current Flat Wire Inductor
Inductance0.055 µH
Rated Inductance0.055 µH
Rated Current27 A
Saturation Current @ 10%23.6 A
Saturation Current @ 30%25.2 A
DC Resistance0.27 mΩ
Self Resonant Frequency123 MHz
MaterialMnZn 
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