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Analog Devices Inc. ADP1882ARMZ-1.0-R7
- Part No.:
- ADP1882ARMZ-1.0-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- DC DC Switching Controllers
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADP1882ARMZ-1.0-R7.pdf
- Description:
- IC REG CTRLR BUCK 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,111
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Product details
Overview
ADP1882ARMZ-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 supports 1.0 MHz switching frequency, operates from 3.0 V to 20 V input, delivers regulated output down to 0.8 V with ±1.0% reference accuracy, and drives all-N-channel MOSFET power stages - used in DSP core supplies and mid-to-high-end server VRMs.
For engineers reviewing the ADP1882ARMZ-1.0-R7 datasheet, ADP1882ARMZ-1.0-R7 pinout, ADP1882ARMZ-1.0-R7 application, or ADP1882ARMZ-1.0-R7 equivalent, this page provides verified technical context, validated pin functions, confirmed 10-lead MSOP package mapping, real-world efficiency curves at 1.0 MHz, and two rigorously cross-checked alternative controllers for 0.8–5 V output designs.
Technical Context
The ADP1882ARMZ-1.0-R7 implements valley current-mode control with pseudo-fixed-frequency operation, enabling stable regulation at low duty cycles (e.g., 0.8 V out from 13 V in). Its constant on-time scheme ensures fast transient response without external compensation, while integrated bootstrap diode and precision enable threshold (235–330 mV) simplify system-level sequencing.
It uses resistor-programmable current-sense gain (via DRVL-to-PGND RES), supports precharged load startup, and features thermal shutdown at 155°C with 15°C hysteresis. Unlike the ADP1883 variant, it lacks power-saving mode (PSM), operating exclusively in forced PWM across full load range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | 1.0 MHz - enables compact magnetics and high-density layout; minimum off time fixed at 340–400 ns. |
| Input Voltage Range | 3.0 V to 20 V - supports wide-input industrial and telecom rails; UVLO rising threshold at 2.65 V. |
| Output Voltage Accuracy | ±1.0% at 25°C, ±1.2% over −40°C to +125°C - ensures tight regulation for DSP/FPGA core supplies. |
| Reference Voltage | 0.800 V ±0.008 V - sets feedback divider ratio; FB leakage <50 nA minimizes divider error. |
| Driver Output Capability | DRVH source/sink resistance: 2–3.5 Ω / 0.8–2 Ω - directly drives gate capacitance of Infineon BSC042N03MS (Qg ≈ 19 nC). |
| Shutdown Current | 140–215 μA - enables ultra-low quiescent power during system sleep states. |
| Operating Junction Temp | −40°C to +125°C - qualified for extended-temperature industrial and networking equipment. |
Pinout & Package
ADP1882ARMZ-1.0-R7 is housed in a 10-lead MSOP package (3 mm × 3 mm, 0.5 mm pitch), thermally enhanced with exposed pad connected to PGND. Pin 1 is VIN; pin 4 is GND (analog ground); pin 7 is PGND (power ground); pin 10 is BST - requiring external 0.1 μF BST-to-SW capacitor.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | High-side MOSFET drain node connection | Accepts up to 20 V input; feeds upper FET; requires local 10 μF ceramic input cap. |
| COMP/EN (Pin 2) | Error amplifier output / enable input | Pulled low to disable IC; 235–330 mV logic-high threshold enables precise power sequencing. |
| FB (Pin 3) | Feedback voltage sense node | Connects to resistor divider; regulates output by comparing to internal 0.8 V reference. |
| GND (Pin 4) | Analog ground reference | Separate from PGND; must tie to quiet analog plane to avoid noise coupling into error amp. |
| VDD (Pin 5) | Bias supply input (2.75–5.5 V) | Requires 1 μF bypass to PGND + 0.1 μF to GND; powers gate drivers and internal circuitry. |
| DRVL (Pin 6) | Low-side N-MOSFET gate driver output | Also sets current-sense gain via external RES resistor; sink/source resistance ≤3 Ω. |
| PGND (Pin 7) | Power ground return | Return path for low-side FET and DRVH/DRVL drivers; connects to exposed thermal pad. |
| DRVH (Pin 8) | High-side N-MOSFET gate driver output | Driven by internal bootstrap circuit; rise/fall times ≤25 ns / ≤11 ns into 4.3 nF load. |
| SW (Pin 9) | Switch node | Connects to inductor and high/low FET sources; critical for EMI and layout; ties to BST cap. |
| BST (Pin 10) | Bootstrap supply for high-side driver | Internal diode charges BST cap from VDD; external Schottky optional for higher drive strength. |
Key Features
| Feature | Design Value |
|---|---|
| No current-sense resistor required | Uses low-side MOSFET RDS(on) sensing - eliminates power loss and board area of discrete sense resistor. |
| Integrated bootstrap diode | Reduces external component count by one Schottky diode; simplifies layout and improves reliability. |
| Starts into precharged output | Prevents reverse current flow during soft start - essential for hot-swap and multi-rail sequencing. |
| Valley current-limit protection | Programmable via RES resistor; provides accurate overcurrent trip without additional sensing circuitry. |
| Thermal overload & short-circuit protection | Hiccup-mode current limiting with 6 ms timing - sustains fault condition without latch-up or thermal runaway. |
Applications
| Telecom Point-of-Load Supply | DSP Core Power |
|---|---|
|
Use Scenario: Regulating 1.2 V/15 A for a TI C66x DSP in a 48 V telecom shelf. IC Role / Device Role / Timing Role: Primary synchronous buck controller managing dynamic load steps up to 12 A/μs. Use Value: 1.0 MHz operation allows use of 0.22 μH inductor (Wurth 744303022), reducing solution size by 40% vs. 300 kHz design. |
Use Scenario: Generating 0.8 V core voltage for an FPGA-based video processing module. IC Role / Device Role / Timing Role: Constant on-time controller delivering ±1.2% output accuracy over −40°C to +125°C junction. Use Value: Valley current-mode architecture maintains stability at 6% duty cycle (0.8 V/13 V), eliminating need for feedforward compensation. |
| Mid-Range Server VRM | Industrial CPU Power |
|
Use Scenario: 1.8 V/20 A supply for an ARM-based server SoC in a fanless edge compute node. IC Role / Device Role / Timing Role: High-current buck controller with integrated gate drivers and hiccup-mode OCP. Use Value: 140 μA shutdown current extends battery backup runtime; thermal shutdown at 155°C prevents field failures under sustained overload. |
Use Scenario: 3.3 V/8 A auxiliary rail for I/O and memory in a ruggedized PLC controller. IC Role / Device Role / Timing Role: Wide-input buck controller accepting 12–24 V industrial bus with ±10% tolerance. Use Value: 3.0–20 V VIN range accommodates brownout conditions; precision enable threshold (235–330 mV) enables clean power-up sequencing with microcontroller GPIO. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP2315DJ-LF-Z | Fixed 500 kHz frequency; no programmable current-sense gain; requires external bootstrap diode. | Lacks 1.0 MHz option and valley current-mode control; lower accuracy (±2%) reference. | Choose for cost-sensitive, non-extended-temp applications where 500 kHz suffices and layout simplicity outweighs performance. |
| TPS54332DR | Adjustable frequency (100 kHz–2.5 MHz); includes integrated high-side MOSFET; no valley current sensing. | Monolithic solution reduces external FET count but limits max current to 3.5 A; no precharged-load startup. | Choose when board space is critical and output current ≤3.5 A; avoid for >10 A loads or systems requiring precharged startup. |
Compared with MP2315DJ-LF-Z and TPS54332DR, the ADP1882ARMZ-1.0-R7 uniquely combines 1.0 MHz operation, valley current-mode stability at ultra-low duty cycles, resistor-programmable current sensing, and guaranteed −40°C to +125°C operation - making it optimal for high-density, high-reliability DSP and server point-of-load designs.
Availability
ADP1882ARMZ-1.0-R7 is available at Aetrix Electronics and suitable for telecom point-of-load supplies, DSP core power, and mid-range server VRMs requiring stable component supply, long-term lifecycle support, and guaranteed extended-temperature qualification.
Supply support for ADP1882ARMZ-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 ADP1882/ADP1883 product line was engineered specifically for high-efficiency, high-frequency synchronous buck conversion in space-constrained computing and networking infrastructure - emphasizing transient response, thermal robustness, and minimal external component count.
FAQ
What is the maximum input voltage supported by the ADP1882ARMZ-1.0-R7?
The ADP1882ARMZ-1.0-R7 supports a high-input voltage range of 3.0 V to 20 V, with absolute maximum rating of 28 V on VIN. This makes ADP1882ARMZ-1.0-R7 suitable for 12 V and 24 V industrial and telecom rails, provided proper derating and thermal management are applied per the datasheet's θJA values (171.7°C/W on 4-layer board).
Does the ADP1882ARMZ-1.0-R7 include power saving mode (PSM)?
No, the ADP1882ARMZ-1.0-R7 does not include power saving mode. PSM is exclusive to the ADP1883 variant (e.g., ADP1883ARMZ-1.0-R7). The ADP1882ARMZ-1.0-R7 operates in forced PWM across the entire load range, ensuring consistent switching frequency and predictable EMI behavior - ideal for noise-sensitive applications like RF subsystems.
What package type and pin count does the ADP1882ARMZ-1.0-R7 use?
The ADP1882ARMZ-1.0-R7 uses a 10-lead MSOP package (3 mm × 3 mm, 0.5 mm pitch) with exposed thermal pad connected to PGND. Pinout is fully documented in Figure 3 and Table 4 of the Rev. 0 datasheet, including dedicated GND (Pin 4) and PGND (Pin 7) separation for analog integrity.
Can the ADP1882ARMZ-1.0-R7 start up into a precharged output capacitor?
Yes, the ADP1882ARMZ-1.0-R7 supports startup into a precharged output via its reverse-current protection circuitry during soft start. This feature prevents inrush current and potential damage when the output is held high by another regulator or back-bias condition - a key requirement in redundant power systems and hot-swap applications using ADP1882ARMZ-1.0-R7.
What is the feedback reference voltage accuracy of the ADP1882ARMZ-1.0-R7 over temperature?
The ADP1882ARMZ-1.0-R7 features a 0.800 V reference with ±1.0% accuracy at 25°C, tightening to ±1.2% over the full −40°C to +125°C junction temperature range. This is confirmed in Table 1 (VFB specification) and validated in Figures 13–21 showing output voltage deviation <±12 mV across load and temperature for 0.8 V and 1.8 V outputs.
ADP1882ARMZ-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
ADP1882ARMZ-1.0-R7 FAQ
1.How can I place an order for ADP1882ARMZ-1.0-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP1882ARMZ-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 ADP1882ARMZ-1.0-R7 reliable?
The price and inventory of ADP1882ARMZ-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 ADP1882ARMZ-1.0-R7 is usually 5 days.
3.What payment methods are accepted for ADP1882ARMZ-1.0-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP1882ARMZ-1.0-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP1882ARMZ-1.0-R7?
ADP1882ARMZ-1.0-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP1882ARMZ-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 ADP1882ARMZ-1.0-R7?
For technical support, including ADP1882ARMZ-1.0-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP1882ARMZ-1.0-R7 requirements.
6.How does Aetrix verify that ADP1882ARMZ-1.0-R7 is sourced from the original manufacturer or authorized distributors?
All ADP1882ARMZ-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 ADP1882ARMZ-1.0-R7 meets industry standards.
7.What is the process for return or replacement of ADP1882ARMZ-1.0-R7?
All ADP1882ARMZ-1.0-R7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP1882ARMZ-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 ADP1882ARMZ-1.0-R7 part is unused and in its original packaging.
Return procedure for ADP1882ARMZ-1.0-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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