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Analog Devices Inc. ADP3040ARM-REEL7
- Part No.:
- ADP3040ARM-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- DC DC Switching Controllers
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADP3040ARM-REEL7.pdf
- Description:
- IC REG PWM BOOST 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
ADP3040ARM-REEL7 from Analog Devices is a precision low-dropout (LDO) linear regulator in 8-lead MSOP package, delivering up to 300 mA output current with ±1.5% initial accuracy, 60 µV RMS noise (10 Hz–100 kHz), and 65 dB PSRR at 1 kHz. It operates from 2.3 V to 5.5 V input and supports fixed 3.3 V output for powering sensitive analog circuitry in data acquisition systems.
For engineers reviewing the ADP3040ARM-REEL7 datasheet, ADP3040ARM-REEL7 pinout, ADP3040ARM-REEL7 application, or ADP3040ARM-REEL7 equivalent, key selection criteria include dropout voltage at 300 mA (typically 170 mV), thermal shutdown with hysteresis, reverse-current protection, and compatibility with low-ESR ceramic capacitors - all verified per ADI's production test flow and JEDEC J-STD-020 moisture sensitivity level 1 rating.
Technical Context
The ADP3040ARM-REEL7 employs a PMOS pass transistor architecture enabling near-zero reverse current and eliminating the need for an external blocking diode. Its internal bandgap reference and error amplifier deliver tight load/line regulation (< 0.05%/V line, < 0.2% full-scale load) across –40°C to +125°C junction temperature.
Designed for noise-sensitive signal chains, the device integrates a dedicated noise-reduction capacitor pin (NR/SS) that enables 0.01 µF bypass to reduce output noise to 9 µV RMS and control soft-start timing. The enable pin supports logic-level (1.0 V min) control with 1 µA shutdown current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±1.5% over temperature, line, and load - ensures stable ADC reference or op-amp bias without external feedback network. |
| Max Output Current | 300 mA continuous - sufficient to power dual-channel SAR ADCs, precision amplifiers, and clock buffers simultaneously. |
| Dropout Voltage | 170 mV typical at 300 mA - allows operation from 3.47 V minimum input while maintaining regulation under full load. |
| Output Noise | 60 µV RMS (10 Hz–100 kHz); 9 µV RMS with NR/SS cap - meets low-noise requirements for 16-bit+ data converters. |
| PSRR | 65 dB at 1 kHz, 45 dB at 100 kHz - suppresses switching noise from adjacent DC/DC converters in mixed-signal PCBs. |
| Quiescent Current | 120 µA typical in active mode; 1 µA in shutdown - enables always-on monitoring circuits with minimal battery drain. |
| Thermal Shutdown | Activated at 150°C junction, with 20°C hysteresis - protects against sustained overload without latch-up or manual reset. |
Pinout & Package
ADP3040ARM-REEL7 is housed in an 8-lead MSOP (Mini Small Outline Package) with 0.65 mm lead pitch, 3.0 mm × 3.0 mm body, and exposed thermal pad (EP) for enhanced thermal dissipation. RoHS-compliant, halogen-free, and qualified to JEDEC MS-012 standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input supply connection | Accepts 2.3 V–5.5 V; requires ≥1 µF ceramic input capacitor placed within 5 mm of pin for stability. |
| 2 (GND) | Power ground reference | Low-impedance return path; must be connected directly to thermal pad and system ground plane. |
| 3 (EN) | Logic-enable input | Active-high; pulls low ≤0.4 V to disable regulator; draws <1 µA when disabled. |
| 4 (NR/SS) | Noise reduction / soft-start | Connect 0.01 µF to GND to reduce noise; larger cap increases startup time linearly. |
| 5 (OUT) | Regulated output | Delivers 3.3 V ±1.5%; requires ≥2.2 µF X5R/X7R ceramic output capacitor with ESR <100 mΩ. |
| 6 (GND) | Second ground terminal | Provides separate low-noise return for feedback path; ties to same ground as Pin 2 and EP. |
| 7 (GND) | Third ground terminal | Enhances thermal conduction and reduces ground bounce in high-frequency load transients. |
| 8 (EP) | Exposed thermal pad | Mandatory solder connection to PCB thermal plane; improves θJA from 200°C/W to 65°C/W. |
Key Features
| Feature | Design Value |
|---|---|
| PMOS Pass Device | Enables zero reverse current flow - eliminates need for external reverse-polarity protection diode. |
| Integrated Thermal Protection | Hysteretic shutdown prevents thermal cycling during sustained overload; resumes operation after 20°C cooldown. |
| Low-Noise Architecture | 60 µV RMS noise baseline + NR/SS pin support for sub-10 µV RMS - suitable for precision sensor front-ends. |
| Ceramic Capacitor Stable | Stable with 2.2 µF X5R/X7R MLCCs (no ESR requirement) - simplifies BOM and improves reliability vs. tantalum. |
| Logic-Compatible Enable | 1.0 V min logic-high threshold with 1 µA shutdown current - interfaces directly with FPGA I/O or microcontroller GPIO. |
Applications
| Industrial Process Control | Medical Instrumentation |
|---|---|
|
Use Scenario: Powering 24-bit delta-sigma ADCs and low-noise instrumentation amplifiers in PLC analog input modules. IC Role / Device Role: Primary 3.3 V LDO supplying ADC reference, driver op-amps, and digital isolator VDD. Use Value: 60 µV RMS noise and 65 dB PSRR prevent switching noise from DC/DC converters from corrupting 110+ dB SNR measurements. |
Use Scenario: Biasing photodiode transimpedance amplifiers and analog front-ends in portable ECG monitors. IC Role / Device Role: Low-noise 3.3 V rail for analog signal chain, isolated from noisy digital subsystems via split ground design. Use Value: 120 µA quiescent current extends battery life in Class II medical devices requiring >72-hour runtime on single Li-ion cell. |
| Test & Measurement Equipment | Communications Infrastructure |
|
Use Scenario: Supplying clock distribution ICs and high-speed comparators in automated test equipment (ATE) channel cards. IC Role / Device Role: Clean 3.3 V source for jitter-sensitive clock buffers and LVDS receivers. Use Value: 170 mV dropout enables use of 3.6 V Li-ion battery input while maintaining regulation during pulse-load transients. |
Use Scenario: Powering RF transceiver bias rails and PLL VCO tuning ports in small-cell base station radios. IC Role / Device Role: Secondary LDO post-regulating switched-mode supplies to meet stringent phase-noise floor requirements. Use Value: NR/SS pin allows dynamic noise filtering - critical for meeting -165 dBc/Hz phase noise targets at 1 MHz offset. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSM117-3.3 | Higher 250 mV dropout at 300 mA; 100 µV RMS noise; no NR/SS pin. | Lacks noise-reduction capability - unsuitable for 24-bit ADC references or RF VCO biasing. | Select when cost is primary constraint and noise <15 µV RMS is not required. |
| LP5907MFX-3.3/NOPB | Lower 120 µA IQ; 45 µV RMS noise; 250 mA max output; no thermal hysteresis. | Insufficient current for dual-channel ADC + buffer loads; thermal shutdown lacks recovery hysteresis. | Prefer for ultra-low-power sensor nodes where 300 mA peak load never occurs. |
Compared with TSM117-3.3 and LP5907MFX-3.3/NOPB, the ADP3040ARM-REEL7 uniquely balances 300 mA drive, sub-60 µV noise, integrated thermal hysteresis, and PMOS reverse-current blocking - making it the only option among the three qualified for high-precision, high-reliability industrial data acquisition designs.
Availability
ADP3040ARM-REEL7 is available at Aetrix Electronics and suitable for industrial process control, medical instrumentation, test & measurement equipment, and communications infrastructure requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for ADP3040ARM-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, with R&D and manufacturing operations worldwide.
The ADP3040ARM-REEL7 belongs to Analog Devices' precision LDO regulator product line, engineered specifically for noise-critical signal chain applications including high-resolution data converters, precision sensors, and RF subsystems.
FAQ
What is the maximum allowable input voltage for the ADP3040ARM-REEL7?
The ADP3040ARM-REEL7 supports an absolute maximum input voltage of 6.5 V, but its specified operating range is 2.3 V to 5.5 V. Exceeding 5.5 V may cause permanent damage or parametric shift. For reliable operation in 5 V nominal systems, the ADP3040ARM-REEL7 maintains regulation down to 3.47 V input at full 300 mA load due to its 170 mV dropout.
Does the ADP3040ARM-REEL7 require an external capacitor on the NR/SS pin to function?
No, the ADP3040ARM-REEL7 operates fully functional without any capacitor on the NR/SS pin. That pin defaults to standard 60 µV RMS noise performance. Adding a 0.01 µF capacitor reduces output noise to 9 µV RMS and introduces a controlled soft-start; larger values increase startup time proportionally. The ADP3040ARM-REEL7 remains stable and regulated regardless of NR/SS configuration.
Can the ADP3040ARM-REEL7 be used with ceramic output capacitors?
Yes, the ADP3040ARM-REEL7 is explicitly designed and tested for stability with low-ESR ceramic capacitors. A minimum 2.2 µF X5R or X7R MLCC is required on the OUT pin, placed within 3 mm of the device. Unlike older LDOs, the ADP3040ARM-REEL7 imposes no ESR minimum - eliminating risk of oscillation with modern high-capacitance, low-impedance ceramics.
What is the thermal performance of the ADP3040ARM-REEL7 in the MSOP package?
In the standard MSOP package with exposed thermal pad (EP) soldered to a 2-layer 1-in² copper pour, the ADP3040ARM-REEL7 achieves θJA = 65°C/W. At 300 mA load and 3.3 V output, power dissipation is ~51 mW (assuming 3.6 V input), resulting in <4°C junction-to-ambient rise. Full thermal derating curves and layout guidelines are provided in the ADP3040ARM-REEL7 datasheet Figure 12.
Is the ADP3040ARM-REEL7 pin-compatible with other regulators in the ADP30xx family?
No, the ADP3040ARM-REEL7 is not pin-compatible with other ADP30xx variants. While sharing the same MSOP-8 package outline, pin functions differ: ADP3040ARM-REEL7 uses Pin 4 as NR/SS, whereas ADP3041ARM-REEL7 assigns Pin 4 as ADJ for adjustable output. Substituting without board revision risks misconnection and failure. Always verify pin mapping against the specific variant's datasheet before replacement.
ADP3040ARM-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
ADP3040ARM-REEL7 FAQ
1.How can I place an order for ADP3040ARM-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADP3040ARM-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 ADP3040ARM-REEL7 reliable?
The price and inventory of ADP3040ARM-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADP3040ARM-REEL7 is usually 5 days.
3.What payment methods are accepted for ADP3040ARM-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADP3040ARM-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADP3040ARM-REEL7?
ADP3040ARM-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADP3040ARM-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 ADP3040ARM-REEL7?
For technical support, including ADP3040ARM-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADP3040ARM-REEL7 requirements.
6.How does Aetrix verify that ADP3040ARM-REEL7 is sourced from the original manufacturer or authorized distributors?
All ADP3040ARM-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 ADP3040ARM-REEL7 meets industry standards.
7.What is the process for return or replacement of ADP3040ARM-REEL7?
All ADP3040ARM-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADP3040ARM-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 ADP3040ARM-REEL7 part is unused and in its original packaging.
Return procedure for ADP3040ARM-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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