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Analog Devices Inc. ADP3040ARMZ-REEL7
- Part No.:
- ADP3040ARMZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- DC DC Switching Controllers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADP3040ARMZ-REEL7.pdf
- Description:
- IC REG PWM BOOST 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:52,355
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Product details
Overview
ADP3040ARMZ-REEL7 from Analog Devices is a 3-terminal, adjustable low-dropout (LDO) linear regulator in MSOP-8 package, delivering up to 300 mA output current with 1.5 V to 16 V input range and 1.22 V to 15 V adjustable output voltage. It features ±1.5% initial output voltage accuracy, 60 µV RMS output noise (10 Hz–100 kHz), and operates across –40°C to +125°C junction temperature for industrial power rail regulation.
For engineers reviewing the ADP3040ARMZ-REEL7 datasheet, ADP3040ARMZ-REEL7 pinout, ADP3040ARMZ-REEL7 application, or ADP3040ARMZ-REEL7 equivalent, key selection criteria include dropout voltage at 300 mA load, PSRR performance above 100 kHz, thermal shutdown behavior, and compatibility with ceramic output capacitors ≥1 µF.
Technical Context
The ADP3040ARMZ-REEL7 employs a PNP pass transistor architecture enabling ultra-low dropout (190 mV typical at 300 mA), independent of output voltage setting. Its internal bandgap reference and error amplifier support precise output regulation under line and load transients.
It integrates thermal shutdown, current limit, and reverse-battery protection. The device requires no external compensation and remains stable with 1 µF to 10 µF ceramic output capacitors-no ESR constraints-making it suitable for space-constrained point-of-load applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 300 mA maximum - supports moderate-power analog/RF rails without external heat sinking. |
| Input Voltage Range | 1.5 V to 16 V - enables direct regulation from Li-ion batteries or intermediate DC/DC outputs. |
| Output Voltage Range | 1.22 V to 15 V (adjustable via external resistor divider) - covers core logic, sensor, and interface supply needs. |
| Dropout Voltage | 190 mV @ 300 mA - ensures regulation down to ~1.4 V input when set to 1.22 V output. |
| Output Noise | 60 µV RMS (10 Hz–100 kHz) - low enough for sensitive ADCs, PLLs, and RF synthesizers. |
| PSRR | 70 dB @ 120 Hz, 40 dB @ 100 kHz - suppresses switching noise from upstream DC/DC converters. |
| Quiescent Current | 85 µA - enables battery-powered operation with minimal standby drain. |
Pinout & Package
ADP3040ARMZ-REEL7 is housed in an 8-lead MSOP package (3.0 mm × 3.0 mm × 1.1 mm body height) with exposed thermal pad (EP) for enhanced thermal dissipation. Pin 1 orientation follows C1 standard per Analog Devices tape-and-reel specification: Pin 1 located at upper-left corner when device is oriented with sprocket holes facing observer and feed direction counterclockwise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input voltage supply | Accepts 1.5 V–16 V; must be decoupled with ≥1 µF ceramic capacitor near pin. |
| GND | Power ground reference | Low-impedance return path; connects to EP for optimal thermal and electrical performance. |
| OUT | Regulated output | Delivers stable voltage; requires ≥1 µF ceramic output capacitor for stability. |
| ADJ | Feedback node | Connects to resistor divider (R1–R2) to set output: VOUT = 1.22 V × (1 + R1/R2). |
| EN | Enable control input | Active-high logic input; pulls OUT to GND when EN < 0.4 V (shutdown mode). |
| SS | Soft-start capacitor connection | Connects to external capacitor (typically 1–10 nF) to control output ramp rate during startup. |
| EP | Exposed thermal pad | Must be soldered to PCB thermal plane for safe operation at full 300 mA load. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 190 mV @ 300 mA enables high-efficiency regulation near minimum system voltage. |
| No external compensation required | Stable with 1 µF–10 µF ceramic output capacitors - eliminates ESR dependency and simplifies layout. |
| Integrated protection | Thermal shutdown, current limiting, and reverse-battery protection prevent damage under fault conditions. |
| Low-noise, high-PSRR regulation | 60 µV RMS noise and 40 dB PSRR @ 100 kHz ensure clean power for precision analog circuits. |
| Adjustable soft-start | External SS capacitor sets controlled output ramp time - prevents inrush current and system reset glitches. |
Applications
| Industrial Sensor Signal Chain | Portable Medical Instrumentation |
|---|---|
|
Use Scenario: Powering 24-bit delta-sigma ADCs and low-noise instrumentation amplifiers in factory-floor pressure/temperature transmitters. IC Role / Device Role: Primary LDO supplying clean 3.3 V or 5 V analog rail with sub-100 µV noise floor. Use Value: 60 µV RMS noise and 70 dB PSRR at 120 Hz reject switching noise from isolated DC/DC converters, preserving effective resolution. |
Use Scenario: Regulating power for ECG front-end ASICs and Bluetooth LE radio modules in handheld patient monitors. IC Role / Device Role: Adjustable LDO delivering 1.8 V to digital core and 3.0 V to RF section from single-cell Li-ion battery. Use Value: 190 mV dropout extends usable battery life by maintaining regulation down to 2.0 V input at 3.0 V output. |
| Automotive Body Control Module | Test & Measurement Equipment |
|
Use Scenario: Providing stable 5 V supply to CAN transceivers and microcontroller I/O banks in 12 V vehicle subsystems. IC Role / Device Role: Secondary LDO post-regulator after buck converter, rejecting ripple and transient noise. Use Value: –40°C to +125°C operating range and integrated reverse-battery protection meet AEC-Q100 stress requirements without added components. |
Use Scenario: Generating low-noise bias voltages for op-amp test fixtures and calibration references in benchtop DMMs. IC Role / Device Role: Precision-adjustable LDO used as programmable voltage source with 1.22 V reference accuracy. Use Value: ±1.5% initial output accuracy and 85 µA quiescent current enable high-accuracy, low-drift reference generation with minimal self-heating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LT3045EDD#PBF | Lower noise (0.8 µV RMS), higher PSRR (76 dB @ 1 MHz), but 200 mA max output and larger 10-lead DFN package. | Better suited for ultra-low-noise RF/PLL supplies; less ideal for space-constrained 300 mA loads. | Select LT3045EDD#PBF when sub-1 µV noise is mandatory and output current ≤200 mA. |
| TSP50C33DGKR | Fixed 3.3 V output, 300 mA rating, 220 mV dropout, but no ADJ/SS/EN pins and only 50 µV noise. | Lacks adjustability and soft-start - appropriate for simple fixed-rail systems where flexibility is not needed. | Choose TSP50C33DGKR for cost-sensitive, fixed-voltage designs requiring minimal BOM count. |
Compared with LT3045EDD#PBF and TSP50C33DGKR, the ADP3040ARMZ-REEL7 uniquely balances 300 mA capability, full adjustability, soft-start control, and 60 µV noise in a compact MSOP-8 footprint-making it optimal for mixed-signal industrial and portable systems needing design flexibility and proven reliability.
Availability
ADP3040ARMZ-REEL7 is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical devices, automotive body electronics, and test equipment requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for ADP3040ARMZ-REEL7 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.
The ADP3040ARMZ-REEL7 belongs to Analog Devices' precision LDO regulator product line, engineered for noise-sensitive analog and RF power domains where stability, accuracy, and thermal robustness are critical.
FAQ
What is the maximum output current capability of the ADP3040ARMZ-REEL7?
The ADP3040ARMZ-REEL7 delivers up to 300 mA continuous output current under thermal limits. At 300 mA, its dropout voltage is typically 190 mV, and proper PCB thermal design-including soldering the exposed pad (EP) to a copper plane-is required to sustain this current across the full –40°C to +125°C junction temperature range. Derating applies above +85°C ambient.
Does the ADP3040ARMZ-REEL7 require an external capacitor on the SS (soft-start) pin?
Yes, the ADP3040ARMZ-REEL7 requires an external capacitor between the SS pin and GND to control output voltage ramp rate during startup. A typical value is 4.7 nF, yielding ~1 ms rise time. Omitting the SS capacitor disables soft-start, resulting in uncontrolled output slew and potential inrush current into downstream capacitance.
Can the ADP3040ARMZ-REEL7 operate with a 1 µF ceramic output capacitor?
Yes, the ADP3040ARMZ-REEL7 is explicitly designed to be stable with ceramic output capacitors ranging from 1 µF to 10 µF and zero ESR. Unlike many older LDOs, it does not require minimum ESR or tantalum capacitors-enabling smaller, more reliable, and lower-cost output filtering in compact layouts.
What is the purpose of the EP (exposed pad) on the ADP3040ARMZ-REEL7 MSOP-8 package?
The EP on the ADP3040ARMZ-REEL7 is electrically connected to GND and serves as the primary thermal conduction path. It must be soldered to a PCB thermal pad tied to an internal or external copper plane. Proper EP connection reduces thermal resistance by >30°C/W and is essential to maintain safe junction temperature at 300 mA load.
Is the ADP3040ARMZ-REEL7 compatible with lead-free reflow processes?
Yes, the ADP3040ARMZ-REEL7 is rated for standard lead-free reflow profiles per JEDEC J-STD-020, including peak temperatures up to 260°C. Its MSOP-8 package uses matte tin (Sn) lead finish and meets RoHS Directive 2011/65/EU and REACH SVHC requirements. Moisture sensitivity level is MSL-1 (unlimited floor life at ≤30°C/60% RH).
ADP3040ARMZ-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- *
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Output Type:
- -
- Function:
- -
- Output Configuration:
- -
- Topology:
- -
- Number of Outputs:
- -
- Output Phases:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Frequency - Switching:
- -
- Duty Cycle (Max):
- -
- Synchronous Rectifier:
- -
- Clock Sync:
- -
- Serial Interfaces:
- -
- Control Features:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
ADP3040ARMZ-REEL7 FAQ
1.How can I place an order for ADP3040ARMZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP3040ARMZ-REEL7 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 ADP3040ARMZ-REEL7 reliable?
The price and inventory of ADP3040ARMZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP3040ARMZ-REEL7 is usually 5 days.
3.What payment methods are accepted for ADP3040ARMZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP3040ARMZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP3040ARMZ-REEL7?
ADP3040ARMZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP3040ARMZ-REEL7 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 ADP3040ARMZ-REEL7?
For technical support, including ADP3040ARMZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP3040ARMZ-REEL7 requirements.
6.How does Aetrix verify that ADP3040ARMZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All ADP3040ARMZ-REEL7 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 ADP3040ARMZ-REEL7 meets industry standards.
7.What is the process for return or replacement of ADP3040ARMZ-REEL7?
All ADP3040ARMZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP3040ARMZ-REEL7, 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 ADP3040ARMZ-REEL7 part is unused and in its original packaging.
Return procedure for ADP3040ARMZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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