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onsemi NCP582LXV33T2G
- Part No.:
- NCP582LXV33T2G
- Manufacturer:
- onsemi
- Package:
- SOT-563, SOT-666
- Datasheet:
-
NCP582LXV33T2G.pdf
- Description:
- IC REG LINEAR 3.3V 150MA SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:4,844
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Product details
Overview
NCP582LXV33T2G from onsemi is an ultra-fast, low-noise 150 mA CMOS LDO regulator with active-low enable and auto-discharge functionality, delivering a precise 3.3 V output voltage with ±2% accuracy, 220 mV dropout at 150 mA, and 30 µVRMS output noise (10 Hz–100 kHz). It operates from 2.0 V to 6.0 V input and targets power-sensitive portable electronics requiring stable, clean rail generation.
For engineers reviewing the NCP582LXV33T2G datasheet, pinout, applications, or equivalent options, key selection criteria include its SOT-563 package, active-low CE pin behavior, 75 µA quiescent current, 70 dB PSRR at 1 kHz, and verified performance in handheld instrumentation and camera modules where low thermal footprint and fast transient response are critical.
Technical Context
The NCP582LXV33T2G implements a CMOS-based pass transistor architecture with internal bandgap reference and error amplifier, enabling ultra-low dropout and high DC accuracy. Its active-low enable pin directly controls the output stage and activates internal auto-discharge circuitry when disabled, ensuring rapid VOUT discharge without external components.
Designed for ceramic-capacitor compatibility, it stabilizes with 0.47 µF output capacitance (per spec for VOUT ≥ 2.5 V) and exhibits excellent dynamic performance: load transient recovery < 10 µs (IOUT step 0→150 mA), input transient rejection ≤ 20 mV undershoot/overshoot, and temperature coefficient of only 100 ppm/°C over −40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.3 V ±2% - Ensures reliable logic-level compliance for 3.3 V microcontrollers and sensors. |
| Dropout Voltage | 220 mV at 150 mA - Enables operation down to 3.52 V input while maintaining regulation. |
| Quiescent Current | 75 µA typical - Minimizes battery drain in always-on or sleep-mode portable systems. |
| Output Noise | 30 µVRMS (10 Hz–100 kHz) - Supports noise-sensitive analog circuits (e.g., ADC references, RF bias rails). |
| PSRR | 70 dB at 1 kHz - Effectively suppresses switching noise from upstream DC-DC converters. |
| Enable Threshold | VENL = 0.3 V max (low-active) - Compatible with standard GPIO outputs and open-drain control signals. |
| Operating Temp | −40°C to +85°C ambient - Validated for industrial-grade portable equipment deployment. |
Pinout & Package
SOT-563 (XV suffix, Case 463A) - 6-pin, 1.6 mm × 1.2 mm × 0.55 mm surface-mount package with two GND pins for enhanced thermal and EMI performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (CE) | Chip Enable (active-low) | Asserting low enables regulator; high disables output and activates internal auto-discharge path to VOUT. |
| 2 (GND) | Power Ground | Primary ground return for internal circuitry and pass device; must be low-impedance connection. |
| 3 (VOUT) | Regulated Output | Delivers stable 3.3 V; requires 0.47 µF ceramic capacitor placed adjacent to pin per layout guidelines. |
| 4 (NC) | No Connect | Internally unconnected; no electrical function; may be left floating or tied to GND for mechanical stability. |
| 5 (GND) | Power Ground | Secondary ground pin; improves thermal dissipation and reduces ground bounce in high-dI/dt conditions. |
| 6 (VIN) | Input Supply | Accepts 2.0–6.0 V; requires 1.0 µF ceramic decoupling capacitor close to this pin. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 220 mV @ 150 mA enables use with single-cell Li-ion (3.0 V min) or 3.3 V pre-regulated rails. |
| Auto-discharge on disable | Integrated N-channel switch discharges VOUT rapidly (< 100 µs) without external FET or resistor. |
| Low-noise regulation | 30 µVRMS noise eliminates need for external noise-reduction capacitors in precision analog paths. |
| High PSRR | 70 dB @ 1 kHz and 60 dB @ 10 kHz suppresses ripple from switching regulators feeding the LDO input. |
| Fast transient response | Load step recovery < 10 µs (0→150 mA) maintains system stability during processor wake-up or sensor burst modes. |
| Pb-free & RoHS compliant | SOT-563 package meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL1) and halogen-free requirements. |
Applications
| Handheld Medical Instrumentation | Digital Still Cameras (DSC) |
|---|---|
Use Scenario: Battery-powered glucose meters and pulse oximeters requiring stable 3.3 V supply for mixed-signal ASICs and OLED displays. IC Role / Device Role / Timing Role: Primary post-regulator delivering clean, low-noise 3.3 V rail to ADC front-end and microcontroller core. Use Value: 30 µVRMS noise ensures <1 LSB error in 12-bit medical ADCs; 75 µA IQ extends battery life beyond 12 months in standby. |
Use Scenario: Compact digital cameras with image sensor, ISP, and SD card interface-all powered from single Li-ion cell. IC Role / Device Role / Timing Role: Dedicated 3.3 V LDO for sensor bias and memory I/O, enabled synchronously with imaging sequence. Use Value: Auto-discharge prevents residual VOUT from interfering with sensor reset; 220 mV dropout allows full utilization of battery voltage range. |
| Portable Test & Measurement Tools | Wireless Sensor Nodes |
Use Scenario: Handheld multimeters and oscilloscope probes needing precise, low-drift reference voltages and analog front-end power. IC Role / Device Role / Timing Role: Low-drift 3.3 V source for precision DACs and op-amp rails, with tight line/load regulation. Use Value: 0.02%/V line regulation and 100 ppm/°C tempco minimize measurement drift across battery discharge and ambient temperature swings. |
Use Scenario: Zigbee/Bluetooth LE nodes operating on coin-cell batteries with periodic wake-up and RF transmission bursts. IC Role / Device Role / Timing Role: Always-on LDO supplying MCU and sensor; CE pin gated by RTC interrupt to minimize quiescent consumption. Use Value: 0.1 µA shutdown current extends 10-year battery life; fast turn-on (< 5 µs) ensures timely sensor sampling after wake-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-3302E/MB | 300 mV dropout at 250 mA; 1.6 µA IQ; no auto-discharge; SOT-23-5 package. | Lacks active discharge; better for ultra-low-IQ always-on monitoring but unsuitable where rapid VOUT decay is required. | Select when lowest possible quiescent current dominates over discharge speed and board space permits larger SOT-23 footprint. |
| Torex XC6206P332MR-G | 300 mV dropout at 100 mA; 1 µA IQ; no enable pin; SOT-25 package. | Fixed-on operation only; no CE control or auto-discharge; lower max output current limits peak load capability. | Choose for cost-sensitive, non-enabling applications where 100 mA output suffices and PCB area is constrained. |
Compared with MCP1700T-3302E/MB and XC6206P332MR-G, the NCP582LXV33T2G uniquely combines active-low enable, integrated auto-discharge, 150 mA output, and 220 mV dropout in a 1.6 mm × 1.2 mm footprint-making it optimal for space-constrained, battery-powered systems requiring controlled power sequencing and fast state transitions.
Availability
NCP582LXV33T2G is available at Aetrix Electronics and suitable for portable instrumentation, digital cameras, and wireless sensor nodes requiring stable component supply, long-term manufacturability, and Pb-free compliance.
Supply support for NCP582LXV33T2G 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 focused on energy-efficient electronics, delivering silicon solutions for automotive, industrial, cloud, and IoT applications.
The NCP582 series belongs to onsemi's precision analog LDO portfolio, engineered specifically for portable battery-powered devices demanding ultra-low noise, fast transient response, and minimal quiescent power consumption.
FAQ
What is the maximum input voltage rating for the NCP582LXV33T2G?
The NCP582LXV33T2G has an absolute maximum input voltage (VIN) rating of 6.5 V. However, the recommended operating input range is 2.0 V to 6.0 V per electrical characteristics testing conditions. Exceeding 6.5 V risks permanent damage, and operation above 6.0 V may degrade parametric performance such as line regulation and PSRR.
Does the NCP582LXV33T2G require an external capacitor for noise reduction?
No, the NCP582LXV33T2G achieves 30 µVRMS output noise (10 Hz–100 kHz) without any external noise-reduction capacitor. Its internal design eliminates the need for a bypass pin or external RC network, simplifying layout and reducing BOM count while maintaining low-noise performance.
How does the auto-discharge feature work on the NCP582LXV33T2G?
When the CE pin is driven high (inactive, since it is active-low), the NCP582LXV33T2G disables the pass transistor and activates an internal ~60 Ω N-channel discharge path between VOUT and GND. This safely drains stored charge from the output capacitor within tens of microseconds, preventing unintended back-powering of upstream circuitry.
What output capacitor value is required for stable operation of the NCP582LXV33T2G?
For the NCP582LXV33T2G (VOUT = 3.3 V ≥ 2.5 V), a minimum 0.47 µF ceramic capacitor is required at the VOUT pin. The datasheet recommends X5R or X7R dielectrics with low ESR; placement must be adjacent to the VOUT and GND pins to ensure stability and optimal transient response.
Is the NCP582LXV33T2G pin-compatible with other variants in the NCP582 family?
Yes - all SOT-563-packaged NCP582 variants (e.g., NCP582DXV33T2G, NCP582LXV28T2G) share identical pinout, footprint, and thermal pad configuration. Only the enable polarity (active-high vs. active-low) and output voltage differ; substituting variants requires verifying CE logic compatibility and output voltage tolerance in the target application.
NCP582LXV33T2G 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):
- 3.3V
- 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
NCP582LXV33T2G FAQ
1.How can I place an order for NCP582LXV33T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP582LXV33T2G 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 NCP582LXV33T2G reliable?
The price and inventory of NCP582LXV33T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP582LXV33T2G is usually 5 days.
3.What payment methods are accepted for NCP582LXV33T2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP582LXV33T2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP582LXV33T2G?
NCP582LXV33T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP582LXV33T2G 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 NCP582LXV33T2G?
For technical support, including NCP582LXV33T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP582LXV33T2G requirements.
6.How does Aetrix verify that NCP582LXV33T2G is sourced from the original manufacturer or authorized distributors?
All NCP582LXV33T2G 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 NCP582LXV33T2G meets industry standards.
7.What is the process for return or replacement of NCP582LXV33T2G?
All NCP582LXV33T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCP582LXV33T2G, 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 NCP582LXV33T2G part is unused and in its original packaging.
Return procedure for NCP582LXV33T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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