RHM4900

Name: RHM4900
Brand: Analog Devices
Price: 468.75 USD
Availability: InStock

PRE-RELEASE

Quad, 40V_IN, Silent Switcher μModule Regulator with Configurable 3A Output Array

Data Sheet (Rev. 0) Product Selection Table

Part Models: 2
1ku List Price: Starting From $446.43

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Overview

No single-event latchup (SEL) ≤40.8MeV linear energy transfer (LET), up to 15V_IN
75krads maximum total ionizing dose (TID) available
Wafer diffusion lot traceability, radiation monitoring for SEL, TID, and outgassing characterization
Commercial space low (CSL) production flow
Four complete 3A (4A peak) step-down switching power supplies
Low noise Silent Switcher^® architecture

Compliant with CISPR22 Class B/CISPR25 Class 5
Wide input voltage range: 3V to 40V
Wide output voltage range: 0.8V to 8V
4A continuous output current per channel at 12V_IN, 3.3V_OUT, f_SW = 2MHz, T_A = 60°C
Multiphase or multi-μModule^® parallelable for increased output current
165-Lead, 16mm × 11.9mm × 3.32mm, BGA package

Part Models: 2
1ku List Price: Starting From $446.43

Documentation

Data Sheet 1

RHM4900: Quad, 40VIN, Silent Switcher μModule Regulator with Configurable 3A Output Array Data Sheet (Rev.0) 08/17/2026

User Guide 1

EVAL-RHM4900-AZ User Guide: Quad, 40VIN, 3A Silent Switcher μModule Regulator (Rev.0) 08/17/2026

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
RHM4900IY-CSL	CSP_BGA	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
RHM4900IY-CSL#PBF	CSP_BGA	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

RHM4900
RHM4900-1

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

RHM4900: Quad, 40VIN, 3A Silent Switcher μModule Regulator

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Features and Benefits

Optional Circuitry for Parallel Operation
Input EMI Filter (VEMI)

Product Details

The EVAL-RHM4900-AZ evaluation board features the RHM4900, a quad output, high-performance, step-down Silent Switcher^® power μModule^® regulator in a thermally-enhanced 16mm × 11.9mm × 3.32mm, ball-grid array (BGA) package. The EVAL-RHM4900-AZ has a wide operating input voltage range of 5.4V to 40V. The output rails are configured for 5V, 3.3V, 1.5V, and 1.2V. They are resistor programmable from 0.8V to 8V. Each output can provide up to 3A, and phases can also be paralleled together to satisfy higher rail current requirements.

The RHM4900 is a complete multi-output, DC-to-DC, point-of-load (POL) regulator in a compact form factor, requiring only a few input and output capacitors and resistors to set the output voltages and operating frequency. Output voltage tracking is made available by the TRSS pins for supply rail sequencing. External clock synchronization is available through the SYNC pins.

The CLKOUT pins provide for the optional synchronization of additional phases. For reduced noise, spread-spectrum operation is available through the SYNC pin programming. The RHM4900 data sheet must be read in conjunction with this user guide for working on or modifying the EVAL-RHM4900-AZ.