ADP3168JRUZ-REEL-AD - 4-Phase Buck | Analog Devices
Référence : ADP3168JRUZ-REEL-AD ✓ ActifADP3168JRUZ-REEL-AD Présentation
A multiphase synchronous buck controller is a voltage-regulation IC that coordinates multiple power stages to deliver high current with improved transient response and reduced ripple. In the power-management hierarchy, it belongs to the DC-DC converter controller class, where an external MOSFET power stage converts a higher input voltage into a regulated processor core rail.
Key verified features include 6-bit programming, selectable two-, three-, or four-phase operation, and a switching frequency of up to 1 MHz per phase. The four-phase architecture distributes current across multiple power stages, helping servers and computer systems manage high processor current while limiting the amount of ripple current handled by any one stage. The available search data also identifies the controller as optimized for a 12 V input.
The ADP3168 family is intended for high-performance computing platforms requiring accurate, high-current core supplies. Its programming interface supports platform-specific voltage and operating configurations, while multiphase control allows designers to balance phase count against component count, switching performance, and solution cost. Because it is a controller rather than a self-contained regulator, external high-side and low-side MOSFETs, inductors, output capacitors, and compensation components are required.
Typical applications include Intel processor core supplies, server and workstation power systems, desktop-computer motherboards, and other multiprocessor or high-current computing platforms. The controller is most appropriate where a 12 V intermediate bus supplies a lower regulated core rail through a configurable two-, three-, or four-phase synchronous converter.
Designers should validate controller-to-MOSFET compatibility, calculate inductor and capacitor ratings for the selected phase count, and confirm the programmed output against the processor power requirements. PCB layout is especially important because high-current switching loops require compact gate-drive paths, adequate copper area, and carefully placed high-frequency decoupling.
This page consolidates the verified distributor information, package data, functional capabilities, sourcing details, and engineering guidance for ADP3168JRUZ-REEL-AD, helping designers evaluate the controller without mistaking a partially specified search result for a complete electrical design.
Alternatives de remplacement direct pour ADP3168JRUZ-REEL-AD — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Aucune alternative de remplacement direct disponible pour ce produit.
Demander des alternativesADP3168JRUZ-REEL-AD Valeurs maximales et caractéristiques électriques
| Product Type | Multiphase synchronous buck switching regulator controller |
| Optimized Input Supply | 12 V |
| Programmable Phase Count | 2, 3, or 4 phases |
| Programming Resolution | 6-bit |
| Maximum Switching Frequency | 1 MHz per phase |
| Output Voltage Accuracy | ±10 mV worst case |
| Boîtier | 28-pin TSSOP, 4.40 mm width |
| Type de montage | Surface mount |
| Control Topology | Multiphase synchronous buck |
| Number of Controller Pins | 28 pins |
Guide de configuration des broches du ADP3168JRUZ-REEL-AD 28-pin tssop, 4.40 mm width
Configuration des broches du ADP3168JRUZ-REEL-AD (boîtier 28-pin tssop, 4.40 mm width). Ce composant de puissance comporte des bornes de grille, de drain et de source. Pour les boîtiers non polarisés, consultez la fiche technique du fabricant pour l'orientation exacte de la broche 1 et les détails de l'empreinte. Les applications courantes incluent la conception d'alimentations, la commande de moteurs et la commutation de charges.
Aucune donnée de brochage détaillée disponible pour ADP3168JRUZ-REEL-AD.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
ADP3168JRUZ-REEL-AD convient pour 6 applications: Intel Processor Core Supply, Multiphase Server Power Architecture, Desktop Motherboard VRM, Workstation Processor Power, High-Current Computing Platform, High-Performance Intel Core Supply.
Intel Processor Core Supply
The ADP3168JRUZ-REEL-AD fits an Intel processor core-supply design that begins with a 12 V main supply and requires a programmed, high-current lower voltage. Its two-, three-, or four-phase architecture divides the power path among multiple external switching stages, while ±10 mV worst-case output accuracy provides a defined regulation target. The controller operates to 1 MHz per phase, allowing the designer to select inductors, capacitors, and compensation that fit the board and switching requirements. Because the ADP3168 is a controller rather than an integrated regulator, the final design must include MOSFETs, inductors, output capacitors, and a feedback network configured for the intended processor rail.
Multiphase Server Power Architecture
A server motherboard can use the ADP3168JRUZ-REEL-AD to regulate a processor core rail from a 12 V intermediate bus when high transient current and small output ripple are priorities. Programmable selection of two, three, or four phases provides flexibility for balancing phase count against board area and external component cost. At up to 1 MHz per phase, the controller supports high-frequency synchronous-buck implementations, but each phase still requires properly rated MOSFETs, inductors, and capacitors. Thermal and layout reviews are essential because processor load transitions can move substantial energy between the input bus, switching nodes, magnetics, and output capacitors within very short intervals.
Desktop Motherboard VRM
The ADP3168JRUZ-REEL-AD is applicable to a desktop-computer motherboard VRM that derives a processor core voltage from a 12 V rail. The 6-bit programming interface permits configuration of the controlled output, while selectable phase operation lets a designer use two phases for a lower-complexity implementation or move to three or four phases as current and transient requirements increase. The 28-pin TSSOP package supports a compact controller layout, but it does not replace the external power stage. Careful partitioning of the controller, gate-driver circuitry, MOSFETs, inductors, and output capacitance is needed to preserve switching performance and maintain the advertised ±10 mV worst-case voltage accuracy.
Workstation Processor Power
Workstation platforms can employ the ADP3168JRUZ-REEL-AD for a configurable high-performance processor core rail because the controller supports up to four operating phases and switching at up to 1 MHz per phase. This configuration is useful when workload-dependent current demand makes a single-phase design difficult to optimize. The 12 V optimized input architecture fits platforms that distribute a common main bus to the processor regulator. Engineering validation must include steady-state efficiency, load-line behavior, startup sequencing, transient response, and converter temperature under worst-case processor demand. The controller, MOSFET gate drive, inductors, and output network should be evaluated together rather than tuned independently.
High-Current Computing Platform
The ADP3168JRUZ-REEL-AD supports high-current computing platforms that require a compact multiphase conversion stage between a 12 V bus and a lower processor voltage. Programmable phase selection provides a path to scale the number of external power stages without changing the controller family, and the 1 MHz-per-phase operating limit permits high-frequency magnetics and capacitor designs. The principal tradeoff is that higher phase counts increase component count, gate-drive coordination, and PCB layout complexity. Designers should quantify efficiency and thermal performance across phase counts rather than assuming that four phases always provide the best system result for every load range.
High-Performance Intel Core Supply
The ADP3168JRUZ-REEL-AD directly matches a high-performance Intel core-supply topology because the manufacturer describes it as a multiphase synchronous buck controller optimized for converting a 12 V main supply into the required core voltage. The 6-bit programming capability supports controlled output settings, and selectable two-, three-, or four-phase operation provides design flexibility. Its stated ±10 mV worst-case accuracy is especially relevant for a rail serving demanding processors, although system accuracy also depends on reference, feedback, compensation, load-line implementation, and external component tolerances. Hardware validation should include startup, steady-state, maximum-load, and rapid load-step tests.
Données de référence d'ingénierie pour ADP3168JRUZ-REEL-AD — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit |
|---|---|
| Product Type | Multiphase synchronous buck controller |
| Brand | Analog Devices |
| Package | 28-pin TSSOP, 4.40 mm width |
| Optimized Input Supply | 12 V |
| Programmable Phase Count | 2, 3, or 4 phases |
| Programming Resolution | 6-bit |
| Maximum Switching Frequency | 1 MHz per phase |
| Output Voltage Accuracy | ±10 mV worst case |
| Verified Unit Price | Quotation required as of 2026-10-29 |
Principaux différenciateurs
- Configurable multiphase control (vs Single-phase buck controllers)
- High per-phase switching capability (vs Lower-frequency multiphase controllers)
- 6-bit output programming (vs Controllers with coarser programming resolution)
- Purpose-built 12 V processor conversion (vs General-purpose isolated or non-multiphase regulators)
Notes de conception
Use the manufacturer datasheet as the authority for the 28-pin TSSOP land pattern and every signal assignment; a complete pinout was not available in the supplied search data. Keep the controller, gate-driver circuitry, MOSFETs, and high-frequency decoupling in a compact power-conversion section. Minimize the distance between switching devices, inductors, and the power-stage return path because parasitic inductance in high di/dt loops increases switching voltage excursions and EMI.
The ADP3168 is a controller and therefore does not regulate power by itself. Select external high-side and low-side MOSFETs, inductors, capacitors, and feedback components for the chosen two-, three-, or four-phase configuration. Validate the complete converter against the 12 V input, programmed core voltage, maximum processor current, and 1 MHz-per-phase switching limit before treating the control specifications as system performance.
Do not assume that identical TSSOP package dimensions guarantee compatibility with another controller. A valid replacement must match the complete pinout, programming interface, phase-operation behavior, compensation architecture, gate-drive expectations, output-voltage range, and switching frequency. The supplied search results did not establish such a drop-in alternative, so any substitution requires schematic-level and timing verification rather than footprint comparison alone.
Thermal design must include the external power stage because controller package temperature does not represent MOSFET or inductor loss. Estimate conduction and switching loss in every MOSFET, verify inductor saturation current against phase current, and account for copper and ambient temperature. Use the controller's verified operating-temperature limits and the power components' limits when assessing the maximum processor load and enclosure temperature.
Informations de conformité
A distributor result contains a RoHS-related field, but the supplied text is incomplete and does not provide an unambiguous compliance statement. No verified REACH, lead-free, halogen-free, or conflict-minerals declaration was supplied.
