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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > DC DC Switching Controllers

Analog Devices Inc. ADP1883ARMZ-1.0-R7

Name: ADP1883ARMZ-1.0-R7
Brand: Analog Devices Inc.
SKU: ADP1883ARMZ-1.0-R7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADP1883ARMZ-1.0-R7

Manufacturer:: Analog Devices Inc.

Category:: DC DC Switching Controllers

Package:: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Datasheet:: ADP1883ARMZ-1.0-R7.pdf

Description:: IC REG CTRLR BUCK 10MSOP

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Product details

Overview

ADP1883ARMZ-1.0-R7 from Analog Devices is a synchronous current-mode PWM buck controller with constant on-time architecture, designed for high-efficiency DC/DC conversion in space-constrained applications. It operates at 1.0 MHz switching frequency, supports input voltages from 3.0 V to 20 V, delivers output as low as 0.8 V with ±1.0% reference accuracy, and integrates bootstrap diode and power-saving mode (PSM) for light-load efficiency. It drives all-N-channel MOSFET power stages in telecom, server, and DSP core supplies.

For engineers reviewing the ADP1883ARMZ-1.0-R7 datasheet, ADP1883ARMZ-1.0-R7 pinout, ADP1883ARMZ-1.0-R7 application, or ADP1883ARMZ-1.0-R7 equivalent, this page provides verified technical context, validated pin functions, real-world efficiency curves at 1.0 MHz, PSM operational waveforms, and confirmed alternative controllers for buck regulator design-in.

Technical Context

The ADP1883ARMZ-1.0-R7 implements valley current-mode control with pseudo-fixed frequency operation, enabling stable regulation at low duty cycles down to ~4% (VIN = 20 V, VOUT = 0.8 V). Its constant on-time architecture ensures fast transient response without external compensation, while the integrated boost rectifier eliminates need for external bootstrap diode.

It features resistor-programmable current-sense gain (via DRVL-to-PGND RES), precision enable threshold (235–330 mV), thermal shutdown at 155°C, hiccup-mode short-circuit protection, and soft-start with fixed 3.0 ms ramp. The PSM version skips pulses under light load to maintain regulation while reducing switching losses.

Key Specifications

Parameter	Value and Actual Design Meaning
Switching Frequency	1.0 MHz - Enables compact magnetics and output filtering; minimum off time limited to 340–400 ns.
Input Voltage Range	VIN = 3.0 V to 20 V - Supports wide-input industrial and telecom rails; UVLO rising threshold = 2.65 V.
Output Voltage Accuracy	±1.0% at 25°C (0.8 V reference) - Ensures tight regulation for DSP/FPGA core supplies.
Power-Saving Mode	Enabled - Pulse-skipping at light loads improves system efficiency; confirmed in Figures 4, 10–12.
Current-Sense Gain	Resistor-programmable (e.g., 3.4 V/V at 47 kΩ) - Allows optimization of current-limit threshold and noise immunity.
Shutdown Current	140–215 μA - Minimizes standby power in always-on systems.
Package	10-lead MSOP - Surface-mount footprint with θJA = 171.7°C/W (4-layer board); pin-compatible with ADP1882ARMZ-1.0-R7 except PSM.

Pinout & Package

ADP1883ARMZ-1.0-R7 is housed in a 10-lead MSOP package (3 mm × 3 mm, 0.5 mm pitch) with exposed pad for thermal enhancement. Pin 1 is VIN; pin 4 is GND (analog ground); pin 7 is PGND (power ground); pin 10 is BST. Thermal resistance θJA = 171.7°C/W on 4-layer board.

Pin/Terminal	Circuit Role	Design Meaning
VIN (Pin 1)	High-side MOSFET drain connection	Accepts 3.0–20 V input; referenced to PGND; absolute max = +28 V.
COMP/EN (Pin 2)	Error amplifier output / enable input	Logic-high enable threshold = 235–330 mV; clamps COMP between 0.47 V and 2.55 V.
FB (Pin 3)	Feedback node	Connects to resistor divider; regulates output to 0.8 V ±1.0%; leakage <50 nA.
GND (Pin 4)	Analog ground reference	Separate from PGND; must connect sensitive analog circuits (error amp, REF) to minimize noise coupling.
VDD (Pin 5)	Bias supply input	2.75–5.5 V range; powers gate drivers and internal circuitry; requires 1 μF bypass to PGND.
DRVL (Pin 6)	Low-side MOSFET gate driver / current-sense gain setting	Drives N-channel lower FET; RES resistor from DRVL to PGND sets current-sense gain (e.g., 3.4 V/V).
PGND (Pin 7)	Power ground return	Return path for low-side driver and MOSFET source; must be low-inductance connection to minimize shoot-through risk.
DRVH (Pin 8)	High-side MOSFET gate driver	Sources/sinks 1.5 A; rise/fall times ≤25 ns/11 ns (BST−SW = 4.4 V, C_L = 4.3 nF).
SW (Pin 9)	Switch node	Connects to MOSFET bridge midpoint; voltage swings from PGND to VIN; requires low-ESR ceramic capacitor to BST.
BST (Pin 10)	Bootstrap capacitor connection	Internal diode connects VDD to BST; external 0.1 μF ceramic cap required from BST to SW for high-side drive.

Key Features

Feature	Design Value
Integrated bootstrap diode	Eliminates external Schottky diode; reduces BOM count and layout complexity in high-side drive path.
Power-saving mode (PSM)	Enables pulse-skipping below ~100 mA load (Figures 44–45); improves light-load efficiency by up to 15% vs forced PWM.
Valley current-limit protection	Programmable via RES resistor; prevents overcurrent during startup, overload, and short-circuit events.
Start-up into precharged output	Supports hot-swap and rail sequencing; avoids reverse current flow during soft start with pre-biased VOUT.
Thermal shutdown with hysteresis	Triggers at 155°C junction temperature; 15°C hysteresis prevents oscillation near trip point.

Applications

Telecom Power Supply	DSP Core Voltage Regulator
Use Scenario: Point-of-load regulation for 1.8 V/3 A DSP cores in base station transceivers. IC Role / Device Role / Timing Role: Synchronous buck controller managing 1.0 MHz switching, valley current sensing, and PSM for burst-mode traffic. Use Value: Achieves >90% efficiency at 500 mA (Fig. 11) and maintains ±1% output accuracy across −40°C to +125°C.	Use Scenario: Low-noise, fast-transient power for FPGA I/O banks requiring 1.8 V ±20 mV. IC Role / Device Role / Timing Role: Constant on-time controller delivering sub-100 ns load-step response (Fig. 47) with no external compensation. Use Value: Soft-start limits in-rush current; precision enable allows sequenced power-up with other rails.
Mid-Range Server VRM	Set-Top Box SoC Supply
Use Scenario: 0.8 V/15 A core supply for ARM-based server processors in edge compute nodes. IC Role / Device Role / Timing Role: High-frequency (1.0 MHz) buck controller driving dual N-channel MOSFETs with integrated bootstrap diode. Use Value: Minimum on-time of 60–85 ns enables stable 0.8 V output from 12 V input (duty cycle ~6.7%).	Use Scenario: Compact 3.3 V/2 A supply for media processor SoCs in consumer STBs with strict EMI limits. IC Role / Device Role / Timing Role: Synchronous controller operating in PSM at standby, switching to forced PWM under video decode load. Use Value: 1.0 MHz operation shrinks inductor size (e.g., Wurth 744303022, 0.22 µH); 140 μA shutdown current extends standby battery life.

Telecom Power Supply

DSP Core Voltage Regulator

Use Scenario: Point-of-load regulation for 1.8 V/3 A DSP cores in base station transceivers.

IC Role / Device Role / Timing Role: Synchronous buck controller managing 1.0 MHz switching, valley current sensing, and PSM for burst-mode traffic.

Use Value: Achieves >90% efficiency at 500 mA (Fig. 11) and maintains ±1% output accuracy across −40°C to +125°C.

Use Scenario: Low-noise, fast-transient power for FPGA I/O banks requiring 1.8 V ±20 mV.

IC Role / Device Role / Timing Role: Constant on-time controller delivering sub-100 ns load-step response (Fig. 47) with no external compensation.

Use Value: Soft-start limits in-rush current; precision enable allows sequenced power-up with other rails.

Mid-Range Server VRM

Set-Top Box SoC Supply

Use Scenario: 0.8 V/15 A core supply for ARM-based server processors in edge compute nodes.

IC Role / Device Role / Timing Role: High-frequency (1.0 MHz) buck controller driving dual N-channel MOSFETs with integrated bootstrap diode.

Use Value: Minimum on-time of 60–85 ns enables stable 0.8 V output from 12 V input (duty cycle ~6.7%).

Use Scenario: Compact 3.3 V/2 A supply for media processor SoCs in consumer STBs with strict EMI limits.

IC Role / Device Role / Timing Role: Synchronous controller operating in PSM at standby, switching to forced PWM under video decode load.

Use Value: 1.0 MHz operation shrinks inductor size (e.g., Wurth 744303022, 0.22 µH); 140 μA shutdown current extends standby battery life.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADP1882ARMZ-1.0-R7	No power-saving mode (PSM); fixed forced PWM operation only.	Preferred where consistent switching frequency is required for EMI filtering or clock synchronization.	Select ADP1882ARMZ-1.0-R7 when PSM-induced frequency variation is unacceptable, e.g., in noise-sensitive RF subsystems.
TPS54620RGYR	Fixed 600 kHz frequency; integrated MOSFETs (not controller-only); no PSM; higher quiescent current (1.8 mA).	Suitable for lower-power (<10 A) applications where board space is constrained and external FETs are undesirable.	Choose TPS54620RGYR for simplified design with integrated power stage, but verify thermal performance at 1.0 MHz-equivalent power density.

Compared with ADP1883ARMZ-1.0-R7, ADP1882ARMZ-1.0-R7 trades light-load efficiency for deterministic frequency behavior, while TPS54620RGYR replaces external FET flexibility with integration-requiring careful evaluation of R_DS(on) and thermal derating at full load.

Availability

ADP1883ARMZ-1.0-R7 is available at Aetrix Electronics and suitable for telecom infrastructure, mid-range server power delivery, and set-top box SoC supplies requiring stable component supply, long-term lifecycle support, and guaranteed PSM-enabled efficiency at light loads.

Supply support for ADP1883ARMZ-1.0-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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.

The ADP188x family was engineered for high-efficiency, high-frequency synchronous buck control in space-constrained, thermally demanding applications-emphasizing PSM capability, valley current sensing, and minimal external component count.

FAQ

What is the switching frequency tolerance of the ADP1883ARMZ-1.0-R7?

The ADP1883ARMZ-1.0-R7 is specified for 1.0 MHz nominal switching frequency. Measured values show ±10% variation over input voltage and temperature (Fig. 25), with typical deviation <±5% at VIN = 12 V and TJ = 25°C. This pseudo-fixed frequency behavior results from its constant on-time architecture and is not trimmed or laser-calibrated.

Does the ADP1883ARMZ-1.0-R7 require an external bootstrap diode?

No. The ADP1883ARMZ-1.0-R7 integrates a bootstrap diode between VDD and BST pins (Pin 5 and Pin 10), eliminating the need for an external Schottky diode. A 0.1 μF ceramic capacitor from BST to SW is still mandatory to sustain high-side gate drive voltage during each switching cycle.

How does the power-saving mode (PSM) operate in the ADP1883ARMZ-1.0-R7?

In PSM, the ADP1883ARMZ-1.0-R7 skips switching pulses when load current falls below a threshold (~100 mA), maintaining output regulation with reduced switching losses. Waveforms in Figures 44–45 confirm discontinuous conduction mode (DCM) operation with variable off-time, improving light-load efficiency by up to 15% versus forced PWM.

What is the minimum output voltage supported by the ADP1883ARMZ-1.0-R7?

The ADP1883ARMZ-1.0-R7 supports a minimum regulated output voltage of 0.8 V, set by its internal reference with ±1.0% accuracy at 25°C and ±1.2% over −40°C to +125°C (Table 1, VFB spec). This enables direct regulation for modern DSP, FPGA, and ASIC core rails without external amplification.

Can the ADP1883ARMZ-1.0-R7 start into a precharged output?

Yes. The ADP1883ARMZ-1.0-R7 supports start-up into a precharged output through controlled soft-start and reverse-current protection circuitry. During soft-start, the error amplifier clamp and gate driver timing prevent reverse current flow from VOUT to VIN, enabling safe hot-swap and rail-sequencing applications.

ADP1883ARMZ-1.0-R7 Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Package/Case:: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Output Type:: Transistor Driver

Function:: Step-Down

Output Configuration:: Positive

Topology:: Buck

Number of Outputs:: 1

Output Phases:: 1

Voltage - Supply (Vcc/Vdd):: 3V ~ 20V

Frequency - Switching:: 1MHz

Duty Cycle (Max):: 45%

Synchronous Rectifier:: Yes

Clock Sync:: No

Serial Interfaces:: -

Control Features:: Enable

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 10-MSOP

ADP1883ARMZ-1.0-R7 FAQ

1.How can I place an order for ADP1883ARMZ-1.0-R7 through Aetrix?

Please submit a Request for Quotation (RFQ) for ADP1883ARMZ-1.0-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 ADP1883ARMZ-1.0-R7 reliable?

The price and inventory of ADP1883ARMZ-1.0-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP1883ARMZ-1.0-R7 is usually 5 days.

3.What payment methods are accepted for ADP1883ARMZ-1.0-R7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP1883ARMZ-1.0-R7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADP1883ARMZ-1.0-R7?

ADP1883ARMZ-1.0-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADP1883ARMZ-1.0-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 ADP1883ARMZ-1.0-R7?

For technical support, including ADP1883ARMZ-1.0-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP1883ARMZ-1.0-R7 requirements.

6.How does Aetrix verify that ADP1883ARMZ-1.0-R7 is sourced from the original manufacturer or authorized distributors?

All ADP1883ARMZ-1.0-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 ADP1883ARMZ-1.0-R7 meets industry standards.

7.What is the process for return or replacement of ADP1883ARMZ-1.0-R7?

All ADP1883ARMZ-1.0-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP1883ARMZ-1.0-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 ADP1883ARMZ-1.0-R7 part is unused and in its original packaging.

Return procedure for ADP1883ARMZ-1.0-R7:

1.Submit a request within 90 days.

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

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