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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Power Supply Controllers, Monitors

Analog Devices Inc. ADP1031ACPZ-4-R7

Name: ADP1031ACPZ-4-R7
Brand: Analog Devices Inc.
SKU: ADP1031ACPZ-4-R7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADP1031ACPZ-4-R7

Manufacturer:: Analog Devices Inc.

Category:: Power Supply Controllers, Monitors

Package:: 41-VFQFN Exposed Pad, CSP

Datasheet:: ADP1031ACPZ-4-R7.pdf

Description:: ISO UPMU & DIGI 5.15VOUT2

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Product details

Overview

ADP1031ACPZ-4-R7 from Analog Devices is a three-channel isolated micropower management unit (PMU) integrating flyback, buck, and inverting dc-dc regulators plus seven digital isolators. It delivers factory-programmed VOUT1 = 24 V, VOUT2 = 5.15 V, and adjustable VOUT3 = −24 V to −5 V, with 250 kHz/125 kHz phase-shifted switching, 565 V_PEAK reinforced insulation, and operation from −40°C to +125°C junction temperature - deployed in industrial process control power and signal isolation.

For engineers reviewing the ADP1031ACPZ-4-R7 datasheet, ADP1031ACPZ-4-R7 pinout, ADP1031ACPZ-4-R7 application, or ADP1031ACPZ-4-R7 equivalent, this page provides verified regulator output configurations, iCoupler® isolation timing specs, thermal derating data, safety certification status (UL/CSA/VDE pending), and domain-specific pin functions for field/masterslave/field power domain partitioning.

Technical Context

The ADP1031ACPZ-4-R7 implements three independent isolated power rails: a 24 V fixed-output flyback regulator (250 kHz), a 5.15 V fixed-output buck regulator (125 kHz), and an adjustable inverting regulator (−24 V to −5 V, 125 kHz), all phase-shifted to reduce EMI. Its integrated iCoupler® technology provides four high-speed SPI isolators (16.6 MHz, <125 ns latency) and three 100 kbps general-purpose isolators across master, slave, and field power domains.

Regulator control includes precision enable input (1.10–1.20 V threshold), power-good outputs per rail with ±10% window, UVLO on VINP (4.44 V rise), and external SYNC input supporting 350–750 kHz clock synchronization. Safety architecture meets DIN V VDE 0884-10 (VIORM = 565 V_PEAK) and UL 1577 (2500 V_rms/1 min), with 300 V_rms basic insulation between domains.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	4.5 V to 60 V - supports wide industrial supply rails including 24 V DC and 48 V telecom systems.
VOUT1 Configuration	Fixed 24 V - confirmed for ADP1031ACPZ-4 variant; eliminates external feedback resistor network.
VOUT2 Configuration	Fixed 5.15 V - factory-programmed; matches precision analog front-end reference requirements.
VOUT3 Range	−24 V to −5 V - adjustable via FB3 resistor divider; enables bipolar sensor biasing or op-amp dual supplies.
Isolation Rating	565 V_PEAK (VIORM) - certified per DIN V VDE 0884-10; supports 300 V_rms working voltage in Pollution Degree 2 environments.
SPI Isolator Speed	16.6 MHz max clock rate - enables real-time isolated ADC/DAC communication without protocol overhead.
Thermal Range	−40°C to +125°C junction - qualified for harsh industrial automation enclosures without derating below 125°C ambient.

Pinout & Package

ADP1031ACPZ-4-R7 uses a 9 mm × 7 mm, 41-lead LFCSP package with three galvanically isolated domains: field power (VINP, SWP, PGNDP), master (MVDD, MCK, MI, MSS, MO), and slave (SVDD1/SVDD2, SCK, SI, SO, SSS, VOUT1–VOUT3, FB1/FB3). Pins 24–26 are DNC; SGND1/SGND2/MGND are domain-specific ground returns; EN, PWRGD, and SYNC are domain-isolated control signals.

Pin/Terminal	Circuit Role	Design Meaning
VINP	Field Power Input	Main 4.5–60 V supply for flyback regulator; referenced to PGNDP.
VOUT1	Slave Power Output	24 V fixed output; powers buck/inverting regulators and SVDD2; overvoltage sense node.
VOUT2	Slave Power Output	5.15 V fixed output; supplies SPI isolators (SVDD1) and precision analog circuitry.
VOUT3	Slave Power Output	Adjustable negative rail (−24 V to −5 V); referenced to SGND2; used for sensor bias or op-amp supplies.
EN	Master Domain Enable	Logic-controlled startup; 1.10–1.20 V rising threshold; 100 mV hysteresis prevents chatter.
PWRGD	Master Domain Status	Open-drain power-good output; asserts high when all three regulators meet ±10% tolerance.
SYNC	Slave Domain Clock Input	Accepts 350–750 kHz external clock; sets all regulator frequencies at f_SYNC/2 (flyback) or f_SYNC/4 (buck/inverter).
FB1	Slave Feedback Node	0.8 V reference input for flyback regulation; connects to resistor divider on VOUT1 for adjustable variants (not used in -4).
FB3	Slave Feedback Node	0.8 V reference input for inverting regulator; sets VOUT3 via external resistor divider.
MCK / MO / MI / MSS	Master SPI Interface	Isolated clock, output, input, and slave-select lines; support full-duplex SPI up to 16.6 MHz.
SCK / SO / SI / SSS	Slave SPI Interface	Corresponding isolated SPI lines on slave side; synchronized with master domain via iCoupler® transformers.
MGPI1 / MGPI2 / MGPO3	Master GPIO Isolators	Three bidirectional general-purpose channels; 100 kbps data rate; 14 µs propagation delay.
SGPI3 / SGPO1 / SGPO2	Slave GPIO Isolators	Paired with master GPIOs; enable isolated control of external FETs, LEDs, or status indicators.

Key Features

Feature	Design Value
Integrated triple-isolated power	Eliminates need for three discrete isolated dc-dc converters and associated magnetics, reducing BOM count by ≥7 components.
Phase-shifted regulator switching	Reduces peak input current and system-level EMI by staggering flyback (250 kHz), buck (125 kHz), and inverter (125 kHz) switching edges.
iCoupler® transformer isolation	Enables <125 ns SPI latency and 100 kbps GPIO speed while maintaining 565 V_PEAK VIORM and CISPR11 Class B compliance.
Factory-programmed outputs	VOUT1 = 24 V and VOUT2 = 5.15 V are laser-trimmed at wafer test - no external resistor selection required for ADP1031ACPZ-4-R7.
Domain-specific ground separation	Dedicated MGND, SGND1, SGND2, and PGNDP pins prevent ground-loop coupling between signal, power, and field domains.

Applications

Industrial Process Controller Power	Data Acquisition Signal Chain Isolation
Use Scenario: Powering isolated analog front-ends (e.g., AD7768-1) and digital I/O in PLC backplanes with 24 V field bus input. IC Role / Device Role / Timing Role: ADP1031ACPZ-4-R7 generates 24 V (VOUT1), 5.15 V (VOUT2), and −15 V (VOUT3) rails while isolating SPI between MCU and ADC. Use Value: Single-chip solution replaces discrete flyback + buck + inverter + six optocouplers, cutting PCB area by >40% and eliminating transformer design effort.	Use Scenario: Isolating high-resolution ADC serial interface and biasing precision op-amps in vibration monitoring sensors. IC Role / Device Role / Timing Role: ADP1031ACPZ-4-R7 delivers low-noise 5.15 V reference rail and −15 V op-amp supply while providing 16.6 MHz SPI isolation for real-time sampling. Use Value: Sub-125 ns SPI latency preserves timing integrity for 125 kSPS+ acquisition; 565 V_PEAK isolation withstands motor drive transients.
Programmable Logic Controller I/O Module	Isolated Sensor Transmitter Supply
Use Scenario: Providing isolated 24 V loop power, 5 V logic, and −12 V bias for HART modem in 4–20 mA transmitter modules. IC Role / Device Role / Timing Role: ADP1031ACPZ-4-R7 acts as primary isolated PMU, powering HART IC, ADC, and digital isolators while managing power sequencing via EN/PWRGD. Use Value: Factory-programmed 24 V/5.15 V outputs match HART physical layer specs; 100 kbps GPIO channels isolate status LEDs and fault flags.	Use Scenario: Powering isolated strain-gauge bridge amplifiers and thermocouple cold-junction compensation circuits in hazardous-area transmitters. IC Role / Device Role / Timing Role: ADP1031ACPZ-4-R7 supplies ultra-stable ±12 V rails (via VOUT1 + VOUT3) and isolates sensor excitation control signals from host MCU. Use Value: 0.0005%/V line regulation ensures excitation voltage stability across 12–36 V input; −40°C to +125°C rating supports explosion-proof enclosure operation.

Industrial Process Controller Power

Data Acquisition Signal Chain Isolation

Use Scenario: Powering isolated analog front-ends (e.g., AD7768-1) and digital I/O in PLC backplanes with 24 V field bus input.

IC Role / Device Role / Timing Role: ADP1031ACPZ-4-R7 generates 24 V (VOUT1), 5.15 V (VOUT2), and −15 V (VOUT3) rails while isolating SPI between MCU and ADC.

Use Value: Single-chip solution replaces discrete flyback + buck + inverter + six optocouplers, cutting PCB area by >40% and eliminating transformer design effort.

Use Scenario: Isolating high-resolution ADC serial interface and biasing precision op-amps in vibration monitoring sensors.

IC Role / Device Role / Timing Role: ADP1031ACPZ-4-R7 delivers low-noise 5.15 V reference rail and −15 V op-amp supply while providing 16.6 MHz SPI isolation for real-time sampling.

Use Value: Sub-125 ns SPI latency preserves timing integrity for 125 kSPS+ acquisition; 565 V_PEAK isolation withstands motor drive transients.

Programmable Logic Controller I/O Module

Isolated Sensor Transmitter Supply

Use Scenario: Providing isolated 24 V loop power, 5 V logic, and −12 V bias for HART modem in 4–20 mA transmitter modules.

IC Role / Device Role / Timing Role: ADP1031ACPZ-4-R7 acts as primary isolated PMU, powering HART IC, ADC, and digital isolators while managing power sequencing via EN/PWRGD.

Use Value: Factory-programmed 24 V/5.15 V outputs match HART physical layer specs; 100 kbps GPIO channels isolate status LEDs and fault flags.

Use Scenario: Powering isolated strain-gauge bridge amplifiers and thermocouple cold-junction compensation circuits in hazardous-area transmitters.

IC Role / Device Role / Timing Role: ADP1031ACPZ-4-R7 supplies ultra-stable ±12 V rails (via VOUT1 + VOUT3) and isolates sensor excitation control signals from host MCU.

Use Value: 0.0005%/V line regulation ensures excitation voltage stability across 12–36 V input; −40°C to +125°C rating supports explosion-proof enclosure operation.

Equivalent & Alternatives

The following parts are listed as comparable options for similar isolated power management applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADP1032ACPZ-4-R7	Same pinout and regulator specs, but adds integrated 12-bit ADC for auxiliary voltage/current monitoring.	Required where system-level telemetry (e.g., input voltage logging) is needed alongside power management.	Select ADP1032ACPZ-4-R7 only if ADC telemetry justifies added cost and firmware complexity.
ISO1211DWR	Dual-channel digital isolator only - no power conversion; requires external isolated dc-dc for VCC domains.	Used when existing isolated power rails exist and only signal isolation is needed (e.g., retrofitting legacy designs).	Choose ISO1211DWR only when ADP1031ACPZ-4-R7's integrated power capability is unnecessary or conflicts with existing power architecture.

Compared with ADP1032ACPZ-4-R7, the ADP1031ACPZ-4-R7 reduces system component count by omitting redundant telemetry circuitry; versus ISO1211DWR, it eliminates external isolated power design effort but increases integration depth - making it optimal for greenfield industrial PMU deployments.

Availability

ADP1031ACPZ-4-R7 is available at Aetrix Electronics and suitable for industrial automation, process control instrumentation, and isolated data acquisition systems requiring stable component supply across extended temperature and safety-critical operating conditions.

Supply support for ADP1031ACPZ-4-R7 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 R&D and manufacturing operations worldwide.

The ADP1031ACPZ-4-R7 belongs to Analog Devices' isolated power management product line, designed specifically for space-constrained industrial systems needing integrated isolated power rails and high-speed digital isolation without compromising safety certification or thermal robustness.

FAQ

What output voltages does the ADP1031ACPZ-4-R7 provide?

The ADP1031ACPZ-4-R7 provides three isolated output voltages: a fixed 24 V on VOUT1 (flyback), a fixed 5.15 V on VOUT2 (buck), and an adjustable negative rail from −24 V to −5 V on VOUT3 (inverting regulator). These are factory-programmed - no external feedback resistors are needed for VOUT1 or VOUT2 in this variant. The VOUT3 range is set via the FB3 resistor divider.

Does the ADP1031ACPZ-4-R7 require external magnetics?

Yes, the ADP1031ACPZ-4-R7 requires an external 1:1 turns-ratio transformer for the flyback regulator (e.g., Coilcraft 750316743), plus external inductors and capacitors for the buck and inverting regulators. The IC integrates all power switches, controllers, and feedback circuitry - but magnetics remain external to optimize efficiency, thermal performance, and safety creepage.

How is isolation implemented between domains in the ADP1031ACPZ-4-R7?

Isolation in the ADP1031ACPZ-4-R7 is implemented using Analog Devices' iCoupler® chip-scale transformer technology for all seven digital isolators, and reinforced galvanic isolation barriers between the field power, master, and slave domains. This achieves 565 V_PEAK working voltage (VIORM) per DIN V VDE 0884-10 and 2500 V_rms/1 min per UL 1577, with dedicated ground pins (PGNDP, MGND, SGND1, SGND2) preventing domain coupling.

What safety certifications apply to the ADP1031ACPZ-4-R7?

The ADP1031ACPZ-4-R7 has pending safety certifications including UL 1577 (2500 V_rms/1 min), CSA Component Acceptance Notice 5A, and VDE-certified DIN V VDE 0884-10 (VIORM = 565 V_PEAK). It meets CISPR11 Class B radiated emissions and supports 300 V_rms basic insulation per IEC 61010-1. Certification status is tracked per Analog Devices' official product page and datasheet revision history.

Can the ADP1031ACPZ-4-R7 operate with an external clock source?

Yes, the ADP1031ACPZ-4-R7 supports external clock synchronization via the SYNC pin. When driven with a 350–750 kHz square wave, the flyback regulator operates at f_SYNC/2 and the buck/inverting regulators at f_SYNC/4 - enabling precise EMI frequency placement and noise filtering in sensitive measurement systems. The SYNC pin must not be left floating and requires a 100 kΩ pull-down to SGND2.

ADP1031ACPZ-4-R7 Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Package/Case:: 41-VFQFN Exposed Pad, CSP

Packaging:: Tape & Reel (TR)

Product Status:: Active

Programmable:: Not Verified

Applications:: General Purpose

Voltage - Input:: 4.5V ~ 60V

Voltage - Supply:: 2.3V ~ 5.5V

Current - Supply:: -

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 41-LFCSP (9x7)

ADP1031ACPZ-4-R7 FAQ

1.How can I place an order for ADP1031ACPZ-4-R7 through Aetrix?

Please submit a Request for Quotation (RFQ) for ADP1031ACPZ-4-R7 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 ADP1031ACPZ-4-R7 reliable?

The price and inventory of ADP1031ACPZ-4-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP1031ACPZ-4-R7 is usually 5 days.

3.What payment methods are accepted for ADP1031ACPZ-4-R7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP1031ACPZ-4-R7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADP1031ACPZ-4-R7?

ADP1031ACPZ-4-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADP1031ACPZ-4-R7 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 ADP1031ACPZ-4-R7?

For technical support, including ADP1031ACPZ-4-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP1031ACPZ-4-R7 requirements.

6.How does Aetrix verify that ADP1031ACPZ-4-R7 is sourced from the original manufacturer or authorized distributors?

All ADP1031ACPZ-4-R7 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 ADP1031ACPZ-4-R7 meets industry standards.

7.What is the process for return or replacement of ADP1031ACPZ-4-R7?

All ADP1031ACPZ-4-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP1031ACPZ-4-R7, 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 ADP1031ACPZ-4-R7 part is unused and in its original packaging.

Return procedure for ADP1031ACPZ-4-R7:

1.Submit a request within 90 days.

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

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