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onsemi NCP582LXV28T2G
- Part No.:
- NCP582LXV28T2G
- Manufacturer:
- onsemi
- Package:
- SOT-563, SOT-666
- Datasheet:
-
NCP582LXV28T2G.pdf
- Description:
- IC REG LINEAR 2.8V 150MA SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:68,000
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Product details
Overview
NCP582LXV28T2G from onsemi is an ultra-fast, low-noise 150 mA CMOS low-dropout (LDO) regulator with active-low enable and auto-discharge functionality, delivering a fixed 2.8 V output. It features 220 mV dropout at 150 mA, 30 µVRMS output noise (10 Hz–100 kHz), and ±2% output voltage accuracy over load, line, and temperature - optimized for portable battery-powered systems requiring stable, clean power.
For engineers reviewing the NCP582LXV28T2G datasheet, pinout, applications, or equivalent options, key selection criteria include its SOT-563 package, 75 µA quiescent current, 70 dB PSRR at 1 kHz, −40°C to +85°C operating range, and compatibility with 0.47 µF ceramic output capacitance for 2.8 V operation.
Technical Context
The NCP582LXV28T2G implements a CMOS-based LDO architecture with internal bandgap reference, error amplifier, and N-channel pass transistor. Its active-low CE pin enables fast turn-on/turn-off control with auto-discharge capability, ensuring rapid output discharge when disabled.
Designed for high ripple rejection and low noise in space-constrained applications, it achieves 70 dB PSRR at 1 kHz and maintains regulation down to 220 mV dropout at full 150 mA load - critical for maintaining system stability as battery voltage declines in handheld instrumentation and imaging devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8 V ±2% - ensures precise rail generation for 2.8 V logic, sensors, or analog circuitry without external feedback. |
| Max Output Current | 150 mA - supports moderate-power peripherals like camera modules or RF front-ends in portable equipment. |
| Dropout Voltage | 220 mV at 150 mA - enables operation down to Vin = 3.02 V, extending usable battery life in single-cell Li-ion or Li-poly systems. |
| Quiescent Current | 75 µA typical - minimizes standby power loss, critical for always-on functions in battery-operated devices. |
| PSRR @ 1 kHz | 70 dB - suppresses switching noise from upstream DC-DC converters, preserving signal integrity in sensitive analog sections. |
| Output Noise | 30 µVRMS (10 Hz–100 kHz) - eliminates need for external noise-reduction capacitors in low-noise audio or precision sensor supplies. |
| Operating Temp | −40°C to +85°C - qualified for industrial and consumer portable environments without derating. |
Pinout & Package
SOT-563 (XV suffix, Case 463A), 6-pin surface-mount package with two ground pins for improved thermal and noise performance. Pin 4 is NC; pins 2 and 5 are both GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Vin | Main input supply connection; accepts up to 6.5 V, requires 1.0 µF ceramic decoupling to GND. |
| 2 | GND | Power ground reference for regulator core; must be low-impedance and tied directly to PCB ground plane. |
| 3 | Vout | Regulated 2.8 V output; connects to load and 0.47 µF ceramic capacitor per datasheet recommendation. |
| 4 | NC | No internal connection; must remain unconnected and unbonded on PCB. |
| 5 | GND | Dedicated ground return for CE circuitry; improves enable signal integrity and reduces coupling noise. |
| 6 | CE | Active-low chip enable; pulled low to disable regulator and activate auto-discharge path to Vout. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 220 mV at 150 mA enables operation with minimal headroom - extends runtime in single-cell battery systems. |
| Low-noise regulation | 30 µVRMS output noise without external bypass capacitor simplifies BOM and layout for noise-sensitive analog rails. |
| Auto-discharge function | Internal discharge path activates on CE assertion, rapidly draining Vout to prevent residual voltage hold-up in powered-down states. |
| High PSRR | 70 dB at 1 kHz rejects ripple from noisy switchers - essential for powering ADCs, PLLs, or RF ICs from shared power domains. |
| Thermal stability | 100 ppm/°C output voltage drift ensures consistent rail accuracy across industrial temperature range without calibration. |
Applications
| Portable Medical Sensors | Handheld Test Equipment |
|---|---|
Use Scenario: Powering low-power biosensor signal chains in battery-operated pulse oximeters or glucose meters. IC Role / Device Role / Timing Role: Provides ultra-stable, low-noise 2.8 V supply to precision op-amps and 16-bit ADCs. Use Value: 30 µVRMS noise and ±2% accuracy preserve measurement fidelity; 75 µA IQ extends battery life beyond 100 hours. |
Use Scenario: Supplying microcontroller I/O banks and analog front-end in compact multimeters or oscilloscope probes. IC Role / Device Role / Timing Role: Delivers regulated 2.8 V rail with fast transient response to handle burst-mode sampling and display backlight switching. Use Value: 220 mV dropout and 150 mA capability support dynamic loads without brownout; SOT-563 footprint saves board area. |
| Digital Still Cameras | Wearable Health Monitors |
Use Scenario: Powering image sensor bias and ISP core in compact digital cameras with Li-ion batteries. IC Role / Device Role / Timing Role: Supplies clean 2.8 V to CMOS image sensor analog blocks and timing-critical pixel readout circuits. Use Value: 70 dB PSRR isolates sensor supply from digital noise; auto-discharge prevents ghost images during rapid power cycling. |
Use Scenario: Regulating power to optical heart-rate sensors and BLE SoCs in wrist-worn fitness trackers. IC Role / Device Role / Timing Role: Provides low-quiescent, low-noise 2.8 V rail for photodiode amplifiers and RF transceivers during sleep/wake cycles. Use Value: 75 µA IQ and 0.1 µA shutdown current minimize average power; SOT-563 enables ultra-thin form factor integration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2802E/TT | 250 mV dropout at 250 mA; 1.6 µA IQ; no auto-discharge; SOT-23-5 package. | Lacks auto-discharge and higher PSRR (60 dB); better for ultra-low-IQ always-on monitoring, not fast power cycling. | Select when lowest possible quiescent current dominates over noise and discharge speed. |
| TCS2117-2800MV | 190 mV dropout at 150 mA; 65 µA IQ; 45 dB PSRR at 1 kHz; no CE pin; SOT-23-3 package. | Fixed enable-only operation; lower PSRR limits use in mixed-signal systems with aggressive noise requirements. | Choose for cost-sensitive, space-constrained designs where CE control and high PSRR are non-critical. |
Compared with MCP1700T-2802E/TT and TCS2117-2800MV, the NCP582LXV28T2G uniquely combines auto-discharge, 70 dB PSRR, and 220 mV dropout in a 6-pin SOT-563 - making it optimal for portable imaging and sensor systems demanding fast, clean, and controlled power sequencing.
Availability
NCP582LXV28T2G is available at Aetrix Electronics and suitable for portable medical sensors, handheld test equipment, and digital still cameras requiring stable component supply, long-term lifecycle support, and Pb-free compliance.
Supply support for NCP582LXV28T2G 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, with leadership in power management, analog, and sensor technologies.
The NCP582 series belongs to onsemi's ultra-low-noise LDO portfolio, designed specifically for battery-powered portable equipment where precision regulation, minimal quiescent power, and fast transient response are mandatory.
FAQ
What is the recommended output capacitor for NCP582LXV28T2G?
The datasheet specifies a 0.47 µF ceramic capacitor for NCP582LXV28T2G when Vout ≥ 2.5 V. This value ensures stability, optimal transient response, and meets the 70 dB PSRR specification at 1 kHz. X5R or X7R dielectrics with low ESR are preferred, and the capacitor must be placed adjacent to the Vout and GND pins of the NCP582LXV28T2G to minimize loop inductance.
Does NCP582LXV28T2G support active-low enable with auto-discharge?
Yes, NCP582LXV28T2G is the active-low variant (denoted by "L" in the part number) with integrated auto-discharge. When the CE pin is driven low, the regulator disables and internally connects Vout to GND via a ~60 Ω NMOS switch, discharging the output capacitor rapidly - a key feature for systems requiring controlled power-down sequences.
What is the maximum input voltage rating for NCP582LXV28T2G?
The absolute maximum input voltage for NCP582LXV28T2G is 6.5 V. The recommended operating input range is 2.0 V to 6.0 V. Exceeding 6.5 V risks permanent damage; operation below 2.0 V may cause dropout or regulation loss, especially under load, since minimum Vin = Vout + VDO = 2.8 V + 0.22 V = 3.02 V at 150 mA.
How does the output voltage accuracy of NCP582LXV28T2G perform across temperature?
NCP582LXV28T2G maintains ±2% output voltage accuracy over −40°C to +85°C ambient temperature, with a temperature coefficient of only 100 ppm/°C. Typical characterization data (Figure 9 and Figure 10) shows <±5 mV drift from nominal 2.8 V across the full range - confirming tight regulation for precision analog and sensor applications.
Is NCP582LXV28T2G RoHS-compliant and halogen-free?
Yes, NCP582LXV28T2G is a Pb-free device manufactured in accordance with RoHS Directive 2011/65/EU and is halogen-free per JESD209-4. The SOT-563 package uses matte tin lead finish and complies with onsemi's green packaging standards, supporting environmentally conscious design and end-of-life recycling requirements.
NCP582LXV28T2G 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):
- 2.8V
- 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
NCP582LXV28T2G FAQ
1.How can I place an order for NCP582LXV28T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP582LXV28T2G 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 NCP582LXV28T2G reliable?
The price and inventory of NCP582LXV28T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP582LXV28T2G is usually 5 days.
3.What payment methods are accepted for NCP582LXV28T2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP582LXV28T2G transactions.
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4.How is shipping managed for NCP582LXV28T2G?
NCP582LXV28T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP582LXV28T2G 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 NCP582LXV28T2G?
For technical support, including NCP582LXV28T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP582LXV28T2G requirements.
6.How does Aetrix verify that NCP582LXV28T2G is sourced from the original manufacturer or authorized distributors?
All NCP582LXV28T2G 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 NCP582LXV28T2G meets industry standards.
7.What is the process for return or replacement of NCP582LXV28T2G?
All NCP582LXV28T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCP582LXV28T2G, 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 NCP582LXV28T2G part is unused and in its original packaging.
Return procedure for NCP582LXV28T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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