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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Special Purpose Regulators

Analog Devices Inc. ADP3160JR-REEL

Name: ADP3160JR-REEL
Brand: Analog Devices Inc.
SKU: ADP3160JR-REEL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADP3160JR-REEL

Manufacturer:: Analog Devices Inc.

Category:: Special Purpose Regulators

Package:: 16-SOIC (0.154", 3.90mm Width)

Datasheet:: ADP3160JR-REEL.pdf

Description:: SYNCHRONOUS BUCK CONTROLLER

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Product details

Overview

ADP3160JR-REEL from Analog Devices is a 5-bit programmable, 2-phase synchronous buck controller optimized for high-performance CPU core voltage regulation. It supports VRM 9.0 compliance, delivers 1.1 V to 1.85 V output via VID interface, achieves ±0.8% total output accuracy over temperature, and features dual antiphase PWM outputs with active current balancing - used in desktop PC power supplies for Intel Pentium 4 and AMD Athlon processors.

For engineers reviewing the ADP3160JR-REEL datasheet, ADP3160JR-REEL pinout, ADP3160JR-REEL application, or ADP3160JR-REEL equivalent, this page provides verified technical context, confirmed pin functions, real-world VRM 9.0 design constraints, and validated alternative controllers for CPU core supply implementations requiring tight transient response and dual-phase current sharing.

Technical Context

The ADP3160JR-REEL implements current-mode PWM control with fixed-frequency oscillator (430–570 kHz typical, set by external CT capacitor), 180° out-of-phase PWM1/PWM2 outputs, and ADOPT™ active voltage positioning for dynamic load compensation. Its internal 5-bit DAC reads VID4–VID0 to program FB regulation voltage between 1.1 V and 1.85 V with 25 mV steps.

It integrates high-side current sensing via CS+ and CS– pins, crowbar overvoltage protection (trip at 114–134% nominal), open-drain PWRGD monitoring, and COMP-based output disable. Designed specifically for 12 V input conversion, it differs from the ADP3167JR (optimized for 5 V input) in current sense threshold (142–172 mV vs. 69–89 mV) and COMP disable threshold (560–800 mV vs. 640–880 mV).

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage Range	1.1 V to 1.85 V, digitally programmable in 25 mV steps via 5-bit VID code - enables precise core voltage matching for Pentium 4/Athlon CPUs.
Total Output Accuracy	±0.8% over 0°C to 70°C - ensures VRM 9.0 static tolerance compliance without external calibration.
Switching Frequency	430–570 kHz (typical, set by CT pin capacitor) - each phase operates at half this frequency (215–285 kHz), balancing efficiency and filter size.
Current Sense Threshold	142–172 mV (ADP3160-specific) - sets peak inductor current limit for 12 V input designs; enables accurate per-phase current limiting.
Power Good Threshold	76–88% (UV), 114–134% (OV) of nominal output - provides reliable system-level power sequencing and fault signaling.
Package	16-lead narrow-body SOIC (R-16A) - industry-standard footprint compatible with automated PCB assembly and thermal management on two-layer boards (θ_JA = 125°C/W).
Operating Temperature	0°C to 70°C commercial range - validated for desktop PC motherboard environments with defined thermal derating.

Pinout & Package

ADP3160JR-REEL is housed in a 16-lead narrow-body SOIC (R-16A) package with standard 1.27 mm pitch and exposed pad not present. Pin functions are electrically validated per Analog Devices ADP3160/ADP3167 Rev. B datasheet.

Pin/Terminal	Circuit Role	Design Meaning
VID4–VID0 (Pins 1–5)	Voltage Identification DAC inputs	Read processor VID code to set output voltage; internal pull-up to 5.0 V reference enables "No CPU" mode when all left open.
COMP (Pin 6)	Error amplifier output & compensation node	Programs current comparator threshold; also used for ADOPT voltage positioning and output disable (pull <560 mV).
FB (Pin 7)	Remote feedback input	Connects to CPU V_OUT sense point; referenced to GND pin placed near load for accuracy.
CT (Pin 8)	Oscillator timing capacitor connection	External capacitor (e.g., 150 pF for 400 kHz) sets switching frequency; NPO dielectric recommended for stability.
GND (Pin 9)	Analog/digital ground reference	Common return for all internal circuits; must be routed close to load ground for remote sensing integrity.
PWRGD (Pin 10)	Open-drain power good indicator	Sinks current when output is within ±12% of nominal; requires external pull-up for logic-high signaling.
CS+, CS– (Pins 11, 14)	Differential current sense inputs	Monitor high-side MOSFET current via single sense resistor; enable active current balancing across both phases.
PWM1, PWM2 (Pins 12–13)	Logic-level phase driver outputs	Drive external high-current drivers (e.g., ADP3414); 180° out-of-phase operation reduces output ripple.
REF (Pin 15)	3.0 V precision reference output	Stable 3.0 V ±1.6% source for ADOPT resistor divider; rated for ≤1 mA load.
VCC (Pin 16)	Main supply input	Accepts 12 V input (6.4 V UVLO threshold); powers internal bias and logic; max 15 V absolute rating.

Key Features

Feature	Design Value
ADOPT™ Optimal Positioning Technology	Actively adjusts output voltage as function of load current to minimize transient deviation - enables use of fewer output capacitors while meeting VRM 9.0 dynamic specs.
Active Current Balancing	Ensures equal current sharing between both phases under steady-state and large transients - eliminates need for matched MOSFETs or inductors and reduces thermal stress per phase.
Integrated Crowbar Protection	Overvoltage detection (114–134% trip) forces both PWM outputs low within 300 ns - protects CPU from destructive overvoltage without external components.
VID-Based Programmability	Direct interface to Pentium 4/Athlon VID bus; 32-step resolution (1.1 V–1.85 V) eliminates external DAC and simplifies system integration.
Current-Mode Control Architecture	Provides inherent cycle-by-cycle current limiting, stable loop response with minimal compensation, and immunity to input voltage variations.

Applications

Desktop CPU Core Supply	VRM 9.0 Module
Use Scenario: Regulating core voltage for Intel Pentium 4 processors in ATX desktop motherboards with 12 V rail input. IC Role / Device Role / Timing Role: Dual-phase synchronous buck controller managing two interleaved power stages, reading VID code, and enforcing VRM 9.0 transient and accuracy requirements. Use Value: Enables compliant 53.4 A output with <130 mV static deviation using only nine 2.2 µF Rubycon MBZ capacitors - 50% fewer than non-ADOPT designs.	Use Scenario: Building compact, plug-in VRM 9.0 modules for OEM motherboard vendors requiring drop-in CPU power solutions. IC Role / Device Role / Timing Role: Primary controller IC defining module behavior, including PWRGD signaling, crowbar protection, and VID decoding for automatic voltage selection. Use Value: Reduces BOM count by integrating reference, error amp, current sense comparator, and PWM logic - no external op-amps or comparators needed.
AMD Athlon Power Delivery	High-Current Embedded Processor Supply
Use Scenario: Delivering tightly regulated 1.5 V core supply to AMD Athlon processors in performance-oriented desktop systems. IC Role / Device Role / Timing Role: 2-phase controller implementing active voltage positioning to maintain <±1% output deviation during 20 A/µs load steps. Use Value: Achieves superior transient response with 600 nH inductors and 1.44 mΩ total ESR output capacitance - validated in Figure 6 reference design.	Use Scenario: Powering high-performance embedded x86 processors in industrial PCs where thermal margin and long-term reliability are critical. IC Role / Device Role / Timing Role: Robust buck controller with 125°C/W thermal resistance, ESD-hardened inputs (4 kV HBM), and crowbar protection for unattended operation. Use Value: Supports continuous 70°C ambient operation with documented thermal derating and failsafe overvoltage shutdown - avoids field failures due to MOSFET shoot-through.

Desktop CPU Core Supply

VRM 9.0 Module

Use Scenario: Regulating core voltage for Intel Pentium 4 processors in ATX desktop motherboards with 12 V rail input.

IC Role / Device Role / Timing Role: Dual-phase synchronous buck controller managing two interleaved power stages, reading VID code, and enforcing VRM 9.0 transient and accuracy requirements.

Use Value: Enables compliant 53.4 A output with <130 mV static deviation using only nine 2.2 µF Rubycon MBZ capacitors - 50% fewer than non-ADOPT designs.

Use Scenario: Building compact, plug-in VRM 9.0 modules for OEM motherboard vendors requiring drop-in CPU power solutions.

IC Role / Device Role / Timing Role: Primary controller IC defining module behavior, including PWRGD signaling, crowbar protection, and VID decoding for automatic voltage selection.

Use Value: Reduces BOM count by integrating reference, error amp, current sense comparator, and PWM logic - no external op-amps or comparators needed.

AMD Athlon Power Delivery

High-Current Embedded Processor Supply

Use Scenario: Delivering tightly regulated 1.5 V core supply to AMD Athlon processors in performance-oriented desktop systems.

IC Role / Device Role / Timing Role: 2-phase controller implementing active voltage positioning to maintain <±1% output deviation during 20 A/µs load steps.

Use Value: Achieves superior transient response with 600 nH inductors and 1.44 mΩ total ESR output capacitance - validated in Figure 6 reference design.

Use Scenario: Powering high-performance embedded x86 processors in industrial PCs where thermal margin and long-term reliability are critical.

IC Role / Device Role / Timing Role: Robust buck controller with 125°C/W thermal resistance, ESD-hardened inputs (4 kV HBM), and crowbar protection for unattended operation.

Use Value: Supports continuous 70°C ambient operation with documented thermal derating and failsafe overvoltage shutdown - avoids field failures due to MOSFET shoot-through.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-phase synchronous buck controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADP3167JR-REEL	Optimized for 5 V input (vs. ADP3160JR-REEL's 12 V focus); lower CS threshold (69–89 mV); higher COMP disable threshold (640–880 mV).	Used in 5 V-input VRM modules or low-input-voltage server applications; not interchangeable without redesigning current sense network and UVLO.	Select ADP3167JR-REEL only when main input is 5 V; ADP3160JR-REEL remains optimal for standard ATX 12 V rail designs.
ISL6322IRZ-T	6-phase capable, integrated MOSFET drivers, 0.5% accuracy; requires external VID translator for legacy CPU support.	Targets higher-current platforms (>100 A); supports newer VRM 10.x/11.x specifications; lacks native 5-bit VID decode.	Choose ISL6322IRZ-T for scalability beyond 53.4 A or multi-phase expansion; ADP3160JR-REEL offers simpler, cost-optimized 2-phase VRM 9.0 compliance.

Compared with ADP3167JR-REEL and ISL6322IRZ-T, the ADP3160JR-REEL provides the most direct path to VRM 9.0 compliance for 12 V-input, 53.4 A desktop CPU supplies - delivering verified ADOPT transient performance, integrated crowbar, and native VID decoding without translation logic or phase-count overhead.

Availability

ADP3160JR-REEL is available at Aetrix Electronics and suitable for desktop PC motherboard design, VRM 9.0 module production, and high-current embedded processor supply applications requiring stable component supply, full traceability, and long-term lifecycle support.

Supply support for ADP3160JR-REEL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with design and manufacturing expertise spanning power management, precision control, and RF technologies.

The ADP3160JR-REEL belongs to Analog Devices' CPU power controller product line, engineered specifically for VRM-compliant core voltage regulation in high-performance computing platforms - emphasizing transient response, integration, and system-level protection.

FAQ

What is the primary function of the ADP3160JR-REEL in a CPU power supply?

The ADP3160JR-REEL serves as a dual-phase synchronous buck controller that regulates the core voltage for Intel Pentium 4 and AMD Athlon processors. It reads the processor's VID code to set output voltage between 1.1 V and 1.85 V, drives two antiphase PWM signals for external MOSFET drivers, and implements ADOPT™ active voltage positioning to maintain tight regulation during rapid load transients - all within a single 16-pin SOIC package.

Does the ADP3160JR-REEL include built-in overvoltage protection?

Yes, the ADP3160JR-REEL integrates a dedicated crowbar comparator that triggers when output voltage exceeds 114–134% of nominal. Upon detection, it forces both PWM1 and PWM2 outputs low within 300 ns, turning off high-side MOSFETs and activating low-side devices to rapidly collapse the output - protecting the CPU without requiring external circuitry.

How does the ADP3160JR-REEL achieve current balancing between its two phases?

The ADP3160JR-REEL uses high-side current sensing through a single shared sense resistor (connected to CS+ and CS–) and alternates measurement between phases on successive oscillator cycles. Because both phases use the same internal current comparator and gm amplifier, mismatch from MOSFET R_DS(ON) or inductor DCR is inherently rejected - ensuring equal current division even under large transient loads.

Can the ADP3160JR-REEL operate with a 5 V input supply?

No - the ADP3160JR-REEL is specifically optimized for 12 V input conversion, as confirmed by its current sense threshold (142–172 mV), UVLO threshold (6.4 V), and functional block diagram targeting 12 V-to-core-VDD conversion. For 5 V input, Analog Devices specifies the pin-compatible ADP3167JR-REEL, which uses a lower CS threshold (69–89 mV) and different COMP disable threshold.

What package type and thermal characteristics apply to the ADP3160JR-REEL?

The ADP3160JR-REEL is supplied in a 16-lead narrow-body SOIC (R-16A) package with 1.27 mm lead pitch. Its thermal resistance is specified as θ_JA = 125°C/W on a two-layer board and 81°C/W on a four-layer board. The device operates from 0°C to 70°C and features ESD protection rated to 4 kV HBM, consistent with standard desktop motherboard handling requirements.

ADP3160JR-REEL Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Package/Case:: 16-SOIC (0.154", 3.90mm Width)

Packaging:: Bulk

Product Status:: Active

Applications:: Controller, High Performance Processor

Voltage - Input:: 12V

Number of Outputs:: 5

Voltage - Output:: 1.1V ~ 1.85V

Operating Temperature:: 0°C ~ 70°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-SOIC

ADP3160JR-REEL FAQ

1.How can I place an order for ADP3160JR-REEL through Aetrix?

Please submit a Request for Quotation (RFQ) for ADP3160JR-REEL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for ADP3160JR-REEL reliable?

The price and inventory of ADP3160JR-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP3160JR-REEL is usually 5 days.

3.What payment methods are accepted for ADP3160JR-REEL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP3160JR-REEL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADP3160JR-REEL?

ADP3160JR-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADP3160JR-REEL order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for ADP3160JR-REEL?

For technical support, including ADP3160JR-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP3160JR-REEL requirements.

6.How does Aetrix verify that ADP3160JR-REEL is sourced from the original manufacturer or authorized distributors?

All ADP3160JR-REEL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADP3160JR-REEL meets industry standards.

7.What is the process for return or replacement of ADP3160JR-REEL?

All ADP3160JR-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADP3160JR-REEL, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The ADP3160JR-REEL part is unused and in its original packaging.

Return procedure for ADP3160JR-REEL:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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