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onsemi NCP582LXV29T2G
- Part No.:
- NCP582LXV29T2G
- Manufacturer:
- onsemi
- Package:
- SOT-563, SOT-666
- Datasheet:
-
NCP582LXV29T2G.pdf
- Description:
- IC REG LINEAR 2.9V 150MA SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:20,000
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Product details
Overview
NCP582LXV29T2G from onsemi is a 2.9 V, 150 mA ultra-low-dropout CMOS linear regulator with active-low enable and auto-discharge functionality, designed for portable battery-powered systems requiring precise voltage regulation, low quiescent current (75 µA typ), high PSRR (70 dB at 1 kHz), and low output noise (30 µVrms). It operates from 2.0–6.0 V input and delivers ±2% output accuracy across −40°C to +85°C.
For engineers reviewing the NCP582LXV29T2G datasheet, pinout, applications, or equivalent options, key selection criteria include dropout voltage at 150 mA (0.22 V typ for 2.9 V output), thermal performance in SOT-563 package, enable threshold compatibility with 1.8 V/3.3 V logic, and ceramic capacitor requirements (Cin/Cout = 0.47 µF).
Technical Context
The NCP582LXV29T2G implements a CMOS-based LDO architecture with internal bandgap reference, error amplifier, and P-channel pass transistor-enabling ultra-low dropout and fast transient response. Its active-low CE pin supports system-level power sequencing and includes integrated auto-discharge circuitry (60 Ω N-channel FET) to rapidly discharge output capacitance when disabled.
Designed for low-noise analog and RF subsystems, it achieves 30 µVrms output noise without external bypass capacitors and maintains 70 dB PSRR at 1 kHz under 30 mA load-critical for powering ADCs, sensors, and RF front-ends in space-constrained portable devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.9 V ±2% - stable rail for 2.8 V–3.0 V logic or analog circuits requiring tight tolerance |
| Max Output Current | 150 mA - sufficient for microcontrollers, sensors, or RF ICs in handheld instrumentation |
| Dropout Voltage | 0.22 V at 150 mA - enables operation down to 3.12 V input while maintaining regulation |
| Quiescent Current | 75 µA typ - extends battery life in always-on monitoring applications |
| PSRR | 70 dB at 1 kHz - suppresses switching noise from upstream DC-DC converters |
| Output Noise | 30 µVrms (10 Hz–100 kHz) - suitable for noise-sensitive analog signal chains |
| Enable Threshold | VCEH ≤ 0.3 V (active low) - compatible with standard 1.8 V/3.3 V GPIO outputs |
| Temp Coefficient | 100 ppm/°C - ensures <±1.2 mV drift over −40°C to +85°C operating range |
Pinout & Package
SOT-563 (XV suffix, Case 463A-01), 6-pin surface-mount package with 0.5 mm pitch; footprint optimized for compact PCB layouts and thermal dissipation up to 500 mW.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Vin) | Input power supply | Accepts 2.0–6.0 V; requires 0.47 µF ceramic decoupling capacitor placed adjacent to pin |
| 2 (GND) | Power ground | Primary ground return path; must be connected to low-impedance PCB ground plane |
| 3 (Vout) | Regulated output | Delivers 2.9 V ±2%; requires 0.47 µF ceramic output capacitor with low ESR |
| 4 (NC) | No connect | Internally unconnected; must remain floating-no external connection permitted |
| 5 (GND) | Secondary ground | Dedicated ground terminal for improved noise immunity and thermal conduction |
| 6 (CE) | Active-low chip enable | Pull low to enable regulator; pull high (≥ Vin − 0.3 V) to disable with auto-discharge activation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 220 mV at 150 mA enables use with single-cell Li-ion (3.0 V min) or two-cell alkaline sources |
| Auto-discharge | 60 Ω internal N-channel FET discharges output capacitance rapidly upon shutdown-prevents residual voltage hold-up |
| Low-noise regulation | 30 µVrms noise eliminates need for external noise-reduction capacitor in most applications |
| High PSRR | 70 dB at 1 kHz rejects ripple from switching regulators feeding the LDO input |
| Thermal protection | Fold-back current limiting and thermal shutdown prevent damage during overload or ambient temperature extremes |
| Pb-free packaging | SOT-563 meets RoHS and JEDEC J-STD-020 reflow standards for lead-free assembly |
Applications
| Portable Medical Sensors | Industrial Handheld Scanners |
|---|---|
Use Scenario: Powering low-power biosignal amplifiers and ADCs in wearable ECG monitors. IC Role / Device Role / Timing Role: Provides clean, stable 2.9 V bias for analog front-end circuitry with minimal noise coupling. Use Value: 30 µVrms output noise and 70 dB PSRR ensure signal integrity for sub-microvolt biopotential measurements. | Use Scenario: Supplying image sensor and microcontroller in barcode scanning pens. IC Role / Device Role / Timing Role: Delivers regulated 2.9 V rail with fast load transient response (<10 µs recovery) during LED flash pulses. Use Value: 150 mA capability and 0.22 V dropout sustain operation as battery voltage drops below 3.2 V. |
| Wireless IoT Edge Nodes | Automotive Cabin Camera Modules |
Use Scenario: Powering BLE SoC and environmental sensors in battery-operated smart home devices. IC Role / Device Role / Timing Role: Enables ultra-low-power sleep mode via active-low CE control and 0.1 µA shutdown current. Use Value: 75 µA quiescent current extends 10-year battery life in maintenance-free deployments. | Use Scenario: Regulating power for CMOS image sensor and ISP in rear-view cameras. IC Role / Device Role / Timing Role: Supplies 2.9 V with ±2% accuracy and 100 ppm/°C drift across automotive temperature range. Use Value: Tight voltage tolerance and low temp coefficient maintain consistent image sensor gain calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2902E/TT | 300 mV dropout at 250 mA; 2.5 µA Iq; no auto-discharge; SOT-23-5 package | Lacks auto-discharge and higher PSRR; better for ultra-low-Iq always-on sensing, not fast-shutdown systems | Select when lowest possible quiescent current dominates over shutdown speed and noise performance |
| TCS2117-2.9V | 250 mV dropout at 150 mA; 65 µA Iq; 45 dB PSRR at 1 kHz; no auto-discharge; DFN-6 package | Lower PSRR and no auto-discharge limit suitability for noise-critical or fast-sequencing designs | Choose for cost-sensitive industrial controls where moderate PSRR suffices and auto-discharge is unnecessary |
Compared with MCP1700T-2902E/TT and TCS2117-2.9V, the NCP582LXV29T2G provides superior noise suppression, higher PSRR, and integrated auto-discharge-making it optimal for portable medical, imaging, and fast-sequencing applications where output rail cleanliness and controlled shutdown behavior are critical.
Availability
NCP582LXV29T2G is available at Aetrix Electronics and suitable for portable medical sensors, industrial handheld scanners, and wireless IoT edge nodes requiring stable component supply, long-lifecycle support, and Pb-free compliance.
Supply support for NCP582LXV29T2G 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 delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCP582 series belongs to onsemi's precision analog LDO portfolio, engineered specifically for battery-powered portable equipment demanding ultra-low noise, low dropout, and fast dynamic response in miniature packages.
FAQ
What is the maximum input voltage rating for the NCP582LXV29T2G?
The NCP582LXV29T2G has an absolute maximum input voltage (Vin) of 6.5 V. The recommended operating input voltage range is 2.0 V to 6.0 V. Exceeding 6.5 V may cause permanent damage. For reliable operation with margin, design inputs to stay within 6.0 V, especially under transient conditions.
Does the NCP582LXV29T2G require an external noise-reduction capacitor?
No, the NCP582LXV29T2G does not require an external noise-reduction capacitor. Its 30 µVrms output noise (10 Hz–100 kHz) is achieved without one. Adding a bypass capacitor may marginally improve noise but is unnecessary for most applications-including precision analog and RF bias rails powered by this device.
What is the function of Pin 4 (NC) on the NCP582LXV29T2G SOT-563 package?
Pin 4 on the NCP582LXV29T2G is marked NC (No Connect) and is internally unconnected. It must remain electrically floating-no trace, pad, or component should be attached. This pin serves only mechanical alignment and thermal relief purposes in the SOT-563 package and has no electrical role in the device operation.
How does the auto-discharge feature work on the NCP582LXV29T2G?
When the CE pin is driven high (disabled state), the NCP582LXV29T2G activates an internal 60 Ω N-channel FET between Vout and GND, discharging the output capacitor. This ensures rapid removal of residual voltage-critical for safe power-down sequencing in multi-rail systems and preventing back-powering of upstream circuitry.
Can the NCP582LXV29T2G support ceramic output capacitors smaller than 0.47 µF?
No-onsemi specifies 0.47 µF ceramic for Vout ≥ 2.5 V (including 2.9 V). Using smaller values risks instability, increased output ripple, and degraded transient response. The device's internal compensation is optimized for ≥0.47 µF X5R/X7R ceramics with low ESR; deviating voids performance guarantees in the datasheet.
NCP582LXV29T2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOT-563, SOT-666
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 2.9V
- 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
NCP582LXV29T2G FAQ
1.How can I place an order for NCP582LXV29T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP582LXV29T2G 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 NCP582LXV29T2G reliable?
The price and inventory of NCP582LXV29T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP582LXV29T2G is usually 5 days.
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NCP582LXV29T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP582LXV29T2G 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 NCP582LXV29T2G?
For technical support, including NCP582LXV29T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP582LXV29T2G requirements.
6.How does Aetrix verify that NCP582LXV29T2G is sourced from the original manufacturer or authorized distributors?
All NCP582LXV29T2G 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 NCP582LXV29T2G meets industry standards.
7.What is the process for return or replacement of NCP582LXV29T2G?
All NCP582LXV29T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCP582LXV29T2G, 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 NCP582LXV29T2G part is unused and in its original packaging.
Return procedure for NCP582LXV29T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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