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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

onsemi NCP582LXV30T2G

Name: NCP582LXV30T2G
Brand: onsemi
SKU: NCP582LXV30T2G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: NCP582LXV30T2G

Manufacturer:: onsemi

Category:: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Package:: SOT-563, SOT-666

Datasheet:: NCP582LXV30T2G.pdf

Description:: IC REG LINEAR 3V 150MA SOT563

Quantity:: RFQ Add To RFQ list

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Product details

Overview

NCP582LXV30T2G from onsemi is a 3.0 V, 150 mA ultra-low-dropout CMOS linear regulator with active-low enable and auto-discharge functionality, designed for portable battery-powered systems requiring tight output accuracy (±2%), low quiescent current (75 µA), and high ripple rejection (70 dB at 1 kHz). It operates from 2.0 V to 6.0 V input and delivers stable regulation in handheld instrumentation and camcorders.

For engineers reviewing the NCP582LXV30T2G datasheet, pinout, applications, or equivalent options, key selection criteria include dropout voltage at 150 mA (220 mV typ.), output noise (30 µV_rms), thermal drift (100 ppm/°C), and SOT-563 package compatibility with space-constrained PCB layouts.

Technical Context

The NCP582LXV30T2G implements a CMOS-based LDO architecture with internal bandgap reference, error amplifier, and pass transistor. Its active-low CE pin enables fast turn-off with auto-discharge of V_OUT via an integrated 60 Ω N-channel switch, reducing residual voltage during shutdown.

It features foldback current limiting and thermal shutdown protection. The regulator maintains ±2% output accuracy across −40°C to +85°C ambient, with line regulation of 0.02%/V and load regulation of 22 mV from 1 mA to 150 mA, supporting dynamic load transients in portable equipment.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	3.0 V ±2% - ensures stable power rail for 3.0 V logic and analog circuits without external feedback.
Max Output Current	150 mA - sufficient for microcontrollers, sensors, and RF front-ends in compact portable devices.
Dropout Voltage	220 mV at 150 mA - enables operation down to Vin = 3.22 V, extending battery runtime in single-cell Li-ion or dual-cell alkaline systems.
Quiescent Current	75 µA typ. - minimizes standby power loss, critical for always-on functions in battery-backed systems.
PSRR	70 dB at 1 kHz - suppresses switching noise from upstream DC-DC converters, preserving signal integrity in ADCs and audio paths.
Output Noise	30 µV_rms (10 Hz–100 kHz) - eliminates need for external noise-reduction capacitors in noise-sensitive analog rails.
Temp Coefficient	100 ppm/°C - limits output drift to ±0.84 mV over −40°C to +85°C, supporting precision voltage references.

Pinout & Package

SOT-563 (XV suffix, Case 463A) - 6-pin, 1.35 mm × 1.0 mm × 0.5 mm surface-mount package with two ground pins for improved thermal and EMI performance.

Pin/Terminal	Circuit Role	Design Meaning
1 (Vin)	Input supply voltage	Accepts 2.0–6.0 V; requires 0.47 µF ceramic decoupling capacitor per datasheet for stability.
2 (GND)	Power ground	Primary ground return path; connects to PCB ground plane for low-impedance thermal dissipation.
3 (Vout)	Regulated output	Delivers 3.0 V ±2%; output capacitor placement must be adjacent to this pin to minimize loop inductance.
4 (NC)	No connect	Internally unconnected; must remain floating-no routing or soldering permitted.
5 (GND)	Secondary ground	Dedicated ground terminal to reduce ground bounce and improve PSRR under transient loads.
6 (CE)	Active-low chip enable	Pull low to enable regulator; pull high (≥V_IN) to disable with auto-discharge of V_OUT via 60 Ω internal FET.

Key Features

Feature	Design Value
Ultra-low dropout	220 mV at 150 mA enables use with depleted batteries or low-headroom input sources.
Auto-discharge function	60 Ω internal N-channel FET discharges V_OUT rapidly upon disable, preventing unintended wake-up or latch-up.
Low-noise regulation	30 µV_rms noise without external bypass capacitor simplifies BOM and layout for analog subsystems.
High PSRR	70 dB at 1 kHz rejects noise from switching regulators, eliminating need for additional LC filtering stages.
Thermal stability	100 ppm/°C output drift ensures consistent performance across industrial temperature range without calibration.

Applications

Portable Medical Sensors	Wearable Health Monitors
Use Scenario: Powering optical heart-rate sensor ICs and low-power ADCs in disposable patch monitors. IC Role / Device Role / Timing Role: Provides clean, stable 3.0 V bias for analog front-end and reference voltage generation. Use Value: 30 µV_rms noise and ±2% accuracy prevent baseline drift and quantization errors in biomedical signal acquisition.	Use Scenario: Supplying Bluetooth LE SoC and MEMS accelerometers in wrist-worn fitness trackers. IC Role / Device Role / Timing Role: Delivers regulated 3.0 V rail with fast enable/disable control synchronized to radio duty cycling. Use Value: 75 µA quiescent current and auto-discharge extend battery life beyond 7 days on coin-cell power.
Industrial Handheld Scanners	Smart Camera Modules
Use Scenario: Powering laser diode drivers and image sensor interfaces in rugged barcode scanners. IC Role / Device Role / Timing Role: Supplies noise-immune 3.0 V to timing-critical interface circuitry during motor-triggered vibration events. Use Value: 70 dB PSRR at 1 kHz prevents switching noise from motor drivers from corrupting image data capture.	Use Scenario: Regulating power for CMOS image sensors and ISP processors in compact USB camera modules. IC Role / Device Role / Timing Role: Maintains precise 3.0 V rail during rapid load transients caused by pixel readout bursts. Use Value: 22 mV load regulation and fast transient response (<10 µs recovery) prevent image frame corruption or reset glitches.

Portable Medical Sensors

Wearable Health Monitors

Use Scenario: Powering optical heart-rate sensor ICs and low-power ADCs in disposable patch monitors.

IC Role / Device Role / Timing Role: Provides clean, stable 3.0 V bias for analog front-end and reference voltage generation.

Use Value: 30 µV_rms noise and ±2% accuracy prevent baseline drift and quantization errors in biomedical signal acquisition.

Use Scenario: Supplying Bluetooth LE SoC and MEMS accelerometers in wrist-worn fitness trackers.

IC Role / Device Role / Timing Role: Delivers regulated 3.0 V rail with fast enable/disable control synchronized to radio duty cycling.

Use Value: 75 µA quiescent current and auto-discharge extend battery life beyond 7 days on coin-cell power.

Industrial Handheld Scanners

Smart Camera Modules

Use Scenario: Powering laser diode drivers and image sensor interfaces in rugged barcode scanners.

IC Role / Device Role / Timing Role: Supplies noise-immune 3.0 V to timing-critical interface circuitry during motor-triggered vibration events.

Use Value: 70 dB PSRR at 1 kHz prevents switching noise from motor drivers from corrupting image data capture.

Use Scenario: Regulating power for CMOS image sensors and ISP processors in compact USB camera modules.

IC Role / Device Role / Timing Role: Maintains precise 3.0 V rail during rapid load transients caused by pixel readout bursts.

Use Value: 22 mV load regulation and fast transient response (<10 µs recovery) prevent image frame corruption or reset glitches.

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/TT	300 mA rated output, 6 µA I_Q, no auto-discharge, SOT-23-5 package	Better for ultra-low-I_Q always-on monitoring; lacks discharge path for V_OUT holdover	Select when lowest standby current is critical and external discharge circuitry is acceptable.
TNIV582L30R	Same 3.0 V/150 mA spec, identical SOT-563 footprint, but active-high CE and no auto-discharge	Requires inverted enable logic; unsuitable where automatic V_OUT discharge is required for system safety	Choose only if board-level CE inversion is implemented and discharge is handled externally.

Compared with MCP1700T-3002E/TT and TNIV582L30R, the NCP582LXV30T2G uniquely integrates auto-discharge and active-low CE in the compact SOT-563 package-enabling safe, low-footprint power sequencing in portable electronics without added discretes.

Availability

NCP582LXV30T2G is available at Aetrix Electronics and suitable for portable medical sensors, wearable health monitors, and industrial handheld scanners requiring stable component supply, long-lifecycle support, and Pb-free compliance.

Supply support for NCP582LXV30T2G 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, and sensing solutions for automotive, industrial, and portable markets.

The NCP582 series was engineered specifically for battery-powered portable equipment demanding ultra-low noise, low I_Q, and fast enable/disable response-addressing design constraints in camcorders, handheld instrumentation, and medical wearables.

FAQ

What is the maximum input voltage rating for the NCP582LXV30T2G?

The NCP582LXV30T2G has a maximum input voltage rating of 6.0 V under recommended operating conditions, with absolute maximum rating of 6.5 V. Exceeding 6.0 V may degrade long-term reliability or trigger internal protection circuits. Operation above 6.0 V is not guaranteed per datasheet specifications and should be avoided in production designs using the NCP582LXV30T2G.

Does the NCP582LXV30T2G require an external noise-reduction capacitor?

No, the NCP582LXV30T2G achieves 30 µV_rms output noise (10 Hz–100 kHz) without any external noise-reduction capacitor. Its internal design eliminates the need for a CNR pin or external bypass, simplifying layout and reducing BOM count while maintaining low-noise performance for analog and RF subsystems powered by the NCP582LXV30T2G.

How does the auto-discharge feature work on the NCP582LXV30T2G?

When the CE pin is pulled high (disabled), the NCP582LXV30T2G activates an internal 60 Ω N-channel FET between V_OUT and GND, actively discharging the output capacitor. This ensures V_OUT falls rapidly to near-zero volts, preventing residual voltage from powering downstream circuitry or causing undefined states-critical for safe power sequencing in systems using the NCP582LXV30T2G.

What is the recommended output capacitor value for the NCP582LXV30T2G?

For the NCP582LXV30T2G with 3.0 V output, the datasheet specifies a 0.47 µF ceramic capacitor (X5R/X7R, low-ESR) placed adjacent to the V_OUT pin. This value ensures stability, optimal transient response, and meets ripple rejection targets. Larger values (e.g., 1.0 µF) may be used for enhanced load step immunity but are not required for basic operation of the NCP582LXV30T2G.

Is the NCP582LXV30T2G pin-compatible with other variants in the NCP582 family?

Yes-the NCP582LXV30T2G shares identical SOT-563 (XV) pinout and footprint with all other NCP582LXVxxT2G and NCP582DXVxxT2G variants. Voltage, enable polarity, and auto-discharge presence differ by part number, but mechanical and electrical pin assignments (Vin, GND, Vout, NC, GND, CE) are fully consistent across the SOT-563 NCP582 family, including the NCP582LXV30T2G.

NCP582LXV30T2G 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):: 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

NCP582LXV30T2G FAQ

1.How can I place an order for NCP582LXV30T2G through Aetrix?

Please submit a Request for Quotation (RFQ) for NCP582LXV30T2G 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 NCP582LXV30T2G reliable?

The price and inventory of NCP582LXV30T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP582LXV30T2G is usually 5 days.

3.What payment methods are accepted for NCP582LXV30T2G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP582LXV30T2G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for NCP582LXV30T2G?

NCP582LXV30T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your NCP582LXV30T2G 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 NCP582LXV30T2G?

For technical support, including NCP582LXV30T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP582LXV30T2G requirements.

6.How does Aetrix verify that NCP582LXV30T2G is sourced from the original manufacturer or authorized distributors?

All NCP582LXV30T2G 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 NCP582LXV30T2G meets industry standards.

7.What is the process for return or replacement of NCP582LXV30T2G?

All NCP582LXV30T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCP582LXV30T2G, 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 NCP582LXV30T2G part is unused and in its original packaging.

Return procedure for NCP582LXV30T2G:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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