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onsemi NCP582DXV30T2G
- Part No.:
- NCP582DXV30T2G
- Manufacturer:
- onsemi
- Package:
- SOT-563, SOT-666
- Datasheet:
-
NCP582DXV30T2G.pdf
- Description:
- IC REG LINEAR 3V 150MA SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:2,409
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Product details
Overview
NCP582DXV30T2G from onsemi is an ultra-fast, low-noise 150 mA CMOS LDO regulator with active-high enable and auto-discharge functionality, delivering a precise 3.0 V output voltage. It features 220 mV dropout at 150 mA, 30 µVRMS output noise (10 Hz–100 kHz), and 70 dB PSRR at 1 kHz-optimized for portable battery-powered systems requiring stable, clean power under dynamic load conditions.
For engineers reviewing the NCP582DXV30T2G datasheet, pinout, applications, or equivalent options, key selection criteria include its SOT-563 package, 3.0 V fixed output, ultra-low quiescent current (75 µA), high accuracy (±2%), and compatibility with low-ESR ceramic capacitors (0.47 µF output).
Technical Context
The NCP582DXV30T2G implements a CMOS-based LDO architecture with internal bandgap reference, error amplifier, and PMOS pass transistor. Its active-high CE pin integrates auto-discharge via an internal N-channel switch (60 Ω typical) to rapidly discharge the output capacitor upon shutdown.
Designed for fast transient response, it achieves <10 µs turn-on/turn-off times and maintains stability with 0.47 µF ceramic output capacitance. The regulator operates across −40°C to +85°C ambient and supports input voltages up to 6.5 V while maintaining ±2% output accuracy over line, load, and temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0 V ±2% - ensures stable core/peripheral rail for microcontrollers and sensors without external feedback. |
| Max Output Current | 150 mA - sufficient to power low-power MCUs, RF transceivers, or analog front-ends in space-constrained designs. |
| Dropout Voltage | 220 mV at 150 mA - enables operation down to Vin = 3.22 V, extending battery life in single-cell Li-ion or 3×AA applications. |
| Quiescent Current | 75 µA typical - minimizes standby power loss, critical for always-on IoT sensors and wearables. |
| PSRR | 70 dB at 1 kHz - suppresses switching noise from upstream DC-DC converters, preserving signal integrity in ADCs and audio circuits. |
| Output Noise | 30 µVRMS (10 Hz–100 kHz) - eliminates need for external noise-reduction capacitors in precision analog supply rails. |
| Enable Threshold | VENH = 1.5 V min, VENL = 0.3 V max - compatible with 1.8 V and 3.3 V logic-level control signals. |
Pinout & Package
SOT-563 (XV suffix, Case 463A) - 6-pin, 1.6 mm × 1.2 mm × 0.6 mm surface-mount package with two GND pins for improved thermal and electrical performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Vin) | Input power supply | Accepts 2.0–6.5 V input; requires 1.0 µF ceramic decoupling capacitor placed close to pin. |
| 2 (GND) | Power ground | Primary ground return path; connects to PCB ground plane to minimize noise coupling. |
| 3 (Vout) | Regulated output | Delivers stable 3.0 V; requires 0.47 µF ceramic capacitor (low ESR) placed adjacent to pin for stability. |
| 4 (NC) | No connect | Internally unconnected; must remain floating-no external connection or trace routing. |
| 5 (GND) | Power ground | Secondary ground terminal; ties to same ground plane as Pin 2 to reduce impedance and improve PSRR. |
| 6 (CE) | Active-high enable | Drives regulator ON when ≥1.5 V; includes auto-discharge circuit to sink output current during disable. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 220 mV @ 150 mA enables use with weak or depleting batteries while maintaining regulation. |
| Low-noise operation | 30 µVRMS output noise eliminates need for external RC filters in sensitive analog rails. |
| Auto-discharge function | 60 Ω internal N-channel switch discharges Vout within microseconds after CE deactivation, preventing back-powering. |
| High PSRR | 70 dB @ 1 kHz rejects ripple from noisy DC-DC stages, simplifying mixed-signal power partitioning. |
| Thermal stability | 100 ppm/°C output voltage drift ensures consistent performance across industrial temperature range. |
Applications
| Portable Medical Sensors | Wearable Fitness Trackers |
|---|---|
Use Scenario: Continuous glucose monitor (CGM) with Bluetooth LE transmission operating from coin-cell battery. IC Role / Device Role / Timing Role: Primary 3.0 V supply for ultra-low-power MCU and analog front-end, enabling >7-day runtime. Use Value: 75 µA quiescent current and 220 mV dropout extend usable battery voltage range, while 30 µVRMS noise prevents measurement offset in biosignal amplifiers. | Use Scenario: Heart-rate monitoring wristband using optical PPG sensor and ARM Cortex-M0+ MCU. IC Role / Device Role / Timing Role: Clean 3.0 V rail for photodiode amplifier and ADC, isolated from noisy digital switching. Use Value: 70 dB PSRR at 1 kHz attenuates digital switching noise from BLE radio, improving SNR by >15 dB in raw PPG data. |
| Industrial Handheld Scanners | Smart Home Motion Sensors |
Use Scenario: Barcode scanner with laser diode driver and image sensor, powered by rechargeable Li-ion cell. IC Role / Device Role / Timing Role: Stable 3.0 V supply for image sensor interface and flash memory controller during burst read/write. Use Value: Fast load transient response (<5 µs recovery) prevents voltage droop during sensor frame capture, eliminating image corruption. | Use Scenario: PIR-based occupancy sensor with Zigbee SoC and environmental sensor fusion, running on AA batteries. IC Role / Device Role / Timing Role: Always-on 3.0 V supply for motion detection logic and wireless wake-up circuitry. Use Value: Auto-discharge ensures rapid Vout collapse during deep sleep, preventing leakage through downstream pull-ups and extending shelf life beyond 2 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-3002E/MB | 250 mV dropout @ 250 mA; 1.6 µA quiescent current; no auto-discharge; SOT-23-3 package. | Lacks enable pin and auto-discharge; suited for simpler always-on rails where fast shutdown isn't required. | Select when ultra-low Iq dominates design priority and board space allows larger SOT-23 footprint. |
| TCS2117-3000CV | 180 mV dropout @ 150 mA; 65 µA Iq; 45 dB PSRR @ 1 kHz; no auto-discharge; DFN-6 package. | Lower dropout but significantly lower PSRR; no integrated discharge path limits use in multi-rail systems with sequencing requirements. | Prefer when minimum input voltage is critical and noise rejection is secondary to efficiency. |
Compared with MCP1700T-3002E/MB and TCS2117-3000CV, the NCP582DXV30T2G uniquely combines auto-discharge, 70 dB PSRR, and SOT-563 compactness-making it optimal for space-constrained, multi-rail portable systems requiring controlled power-down behavior and high analog integrity.
Availability
NCP582DXV30T2G is available at Aetrix Electronics and suitable for portable medical sensors, wearable fitness trackers, and industrial handheld scanners requiring stable component supply, long-term lifecycle support, and Pb-free compliance.
Supply support for NCP582DXV30T2G 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The NCP582 series belongs to onsemi's ultra-low-noise LDO portfolio, engineered specifically for battery-powered portable equipment demanding high accuracy, fast transient response, and minimal quiescent power consumption.
FAQ
What is the maximum input voltage rating for the NCP582DXV30T2G?
The NCP582DXV30T2G has an absolute maximum input voltage (Vin) rating of 6.5 V. Operation above this level risks permanent damage. For reliable long-term performance, the recommended operating input range is 2.0 V to 6.0 V, as specified in the Electrical Characteristics table under "Input Voltage" with test conditions Vin = Vout + 1.0 V.
Does the NCP582DXV30T2G require an external noise-reduction capacitor?
No, the NCP582DXV30T2G does not require an external noise-reduction capacitor. Its inherent output noise is 30 µVRMS (10 Hz–100 kHz) without any additional capacitor. This low-noise performance is achieved through internal design and is verified in the datasheet's Electrical Characteristics table under "Output Noise Voltage".
What is the purpose of the NC pin (Pin 4) on the NCP582DXV30T2G?
Pin 4 of the NCP582DXV30T2G is designated NC (No Connect) and is internally unconnected. It must remain electrically floating-no trace, pad, or component should be attached. This pin exists for mechanical symmetry and package compatibility; connecting it may compromise thermal performance or cause unintended coupling.
How does the auto-discharge function operate on the NCP582DXV30T2G?
When the CE pin is driven low (disable state), the NCP582DXV30T2G activates an internal N-channel transistor (60 Ω typical on-resistance) between Vout and GND. This provides a controlled discharge path for the output capacitor, collapsing Vout rapidly-critical for preventing back-powering of upstream circuitry or ensuring proper power sequencing in multi-rail systems.
Can the NCP582DXV30T2G be used with a 0.22 µF output capacitor?
No-the NCP582DXV30T2G is not guaranteed stable with a 0.22 µF output capacitor. The datasheet specifies 0.47 µF ceramic (for Vout ≥ 2.5 V) as the minimum recommended value. Using 0.22 µF may cause oscillation or poor transient response, as confirmed in the "Output Decoupling" section and Figure 22 load transient plots which assume ≥0.47 µF.
NCP582DXV30T2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOT-563, SOT-666
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.35V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 95 µA
- Current - Supply (Max):
- -
- PSRR:
- 70dB ~ 60dB (1kHz ~ 10kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-563
NCP582DXV30T2G FAQ
1.How can I place an order for NCP582DXV30T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP582DXV30T2G 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 NCP582DXV30T2G reliable?
The price and inventory of NCP582DXV30T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP582DXV30T2G is usually 5 days.
3.What payment methods are accepted for NCP582DXV30T2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP582DXV30T2G transactions.
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4.How is shipping managed for NCP582DXV30T2G?
NCP582DXV30T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP582DXV30T2G 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 NCP582DXV30T2G?
For technical support, including NCP582DXV30T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP582DXV30T2G requirements.
6.How does Aetrix verify that NCP582DXV30T2G is sourced from the original manufacturer or authorized distributors?
All NCP582DXV30T2G 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 NCP582DXV30T2G meets industry standards.
7.What is the process for return or replacement of NCP582DXV30T2G?
All NCP582DXV30T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCP582DXV30T2G, 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 NCP582DXV30T2G part is unused and in its original packaging.
Return procedure for NCP582DXV30T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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