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onsemi NCP582DXV15T2G
- Part No.:
- NCP582DXV15T2G
- Manufacturer:
- onsemi
- Package:
- SOT-563, SOT-666
- Datasheet:
-
NCP582DXV15T2G.pdf
- Description:
- IC REG LINEAR 1.5V 150MA SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:8,000
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Product details
Overview
NCP582DXV15T2G from onsemi is a 1.5 V, 150 mA ultra-low-dropout CMOS linear regulator with active-high enable and auto-discharge functionality, designed for portable battery-powered systems requiring high PSRR (70 dB @ 1 kHz), low output noise (30 µVRMS), and ±2% output voltage accuracy over load/temperature. It operates from 2.0–6.0 V input and delivers stable regulation in space-constrained SOT-563 packaging.
For engineers reviewing the NCP582DXV15T2G datasheet, pinout, applications, or equivalent options, key selection criteria include dropout voltage at 150 mA (0.22 V typ), quiescent current (75 µA typ), thermal performance in 400 mW-rated SOT-563, and compatibility with 0.47 µF ceramic output capacitance for 1.5 V output.
Technical Context
The NCP582DXV15T2G 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-high CE pin integrates auto-discharge via an internal N-channel switch that pulls Vout to GND when disabled.
Designed for low-noise analog and RF subsystems, it achieves 30 µVRMS output noise (10 Hz–100 kHz) without external bypass capacitors and maintains 70 dB power supply rejection at 1 kHz across its full 1.5–3.3 V output range and 150 mA load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.5 V ±2% - ensures precise biasing for 1.5 V logic, sensors, or RF ICs without external trimming. |
| Max Output Current | 150 mA - supports moderate-power microcontrollers, display drivers, or audio codecs in portable devices. |
| Dropout Voltage | 0.22 V @ 150 mA - enables operation down to Vin = 1.72 V, extending battery runtime in single-cell Li-ion or alkaline systems. |
| Quiescent Current | 75 µA typ - minimizes standby power loss in always-on sensor nodes or real-time clock circuits. |
| PSRR | 70 dB @ 1 kHz - suppresses switching noise from adjacent DC-DC converters feeding mixed-signal SoCs. |
| Output Noise | 30 µVRMS (10 Hz–100 kHz) - meets stringent noise requirements for ADC references and low-noise amplifiers. |
| Enable Threshold | VENH = 1.5 V min, VENL = 0.3 V max - compatible with 1.8 V and 3.3 V GPIOs without level-shifting. |
| Operating Temp | −40°C to +85°C - qualified for industrial and automotive cabin applications with no derating up to 85°C ambient. |
Pinout & Package
SOT-563 (Case 463A) package: 1.6 mm × 1.2 mm × 0.6 mm, 6-pin surface-mount, Pb-free, moisture sensitivity level 1 (MSL1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (CE) | Chip Enable Input | Active-high control: drives internal pass transistor ON when ≥1.5 V; enables auto-discharge when pulled low. |
| 2 (GND) | Power Ground | Main return path for input/output current; requires low-impedance PCB connection to minimize noise coupling. |
| 3 (Vout) | Regulated Output | Delivers 1.5 V ±2% to load; must be decoupled with 0.47 µF ceramic capacitor placed within 2 mm of pin. |
| 4 (NC) | No Connect | Internally unconnected; must remain floating-no routing or soldering permitted. |
| 5 (GND) | Power Ground | Dedicated ground terminal for improved thermal dissipation and reduced ground bounce vs. shared GND paths. |
| 6 (Vin) | Input Supply | Accepts 2.0–6.0 V; requires 1.0 µF ceramic input capacitor placed adjacent to pin to stabilize transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 220 mV @ 150 mA enables >90% efficiency at 1.5 V output from 1.8 V input sources like LiFePO₄ cells. |
| Auto-discharge function | Internal 60 Ω N-channel switch rapidly discharges Vout to GND upon disable-prevents back-powering of upstream circuitry. |
| Low-noise regulation | 30 µVRMS noise eliminates need for external noise-reduction capacitors, saving board space and BOM cost. |
| High PSRR | 70 dB @ 1 kHz rejects ripple from noisy DC-DC converters, enabling clean power for precision analog front-ends. |
| Foldback protection | Reduces short-circuit current to ~40 mA during output faults-limits power dissipation and prevents thermal runaway. |
| Wide input range | 2.0–6.0 V input supports single-cell Li-ion (2.7–4.2 V), dual-cell alkaline (2.0–3.2 V), and USB-powered designs. |
Applications
| Portable Medical Sensors | Wearable Fitness Trackers |
|---|---|
Use Scenario: Continuous glucose monitor (CGM) with integrated ADC and Bluetooth LE radio operating from coin-cell battery. IC Role / Device Role / Timing Role: Primary 1.5 V supply for ultra-low-power analog front-end and RF transceiver core logic. Use Value: 75 µA quiescent current extends battery life beyond 6 months; 30 µVRMS noise ensures <1 LSB ADC error in 12-bit medical-grade conversion. | Use Scenario: Optical heart-rate sensor module using photodiode array and low-noise amplifier in wrist-worn form factor. IC Role / Device Role / Timing Role: Clean 1.5 V rail for photodiode biasing and analog signal conditioning prior to digitization. Use Value: 70 dB PSRR isolates optical sensing path from digital switching noise generated by MCU and BLE stack. |
| Industrial IoT Edge Nodes | Smart Home Motion Detectors |
Use Scenario: Battery-operated vibration sensor node with MEMS accelerometer and LoRaWAN transceiver deployed in factory environments. IC Role / Device Role / Timing Role: Regulated 1.5 V supply for MEMS interface and sub-GHz RF IC, activated only during scheduled wake-up intervals. Use Value: Active-high CE with auto-discharge ensures zero holdover current between sampling events-critical for 10-year battery life targets. | Use Scenario: PIR-based occupancy detector powered by AA batteries, requiring reliable startup at cold temperatures down to −25°C. IC Role / Device Role / Timing Role: Stable 1.5 V source for PIR signal amplifier and ultra-low-power microcontroller reset circuitry. Use Value: ±2% output accuracy and 100 ppm/°C tempco maintain consistent detection threshold across −40°C to +85°C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1502E/TT | 150 mA, 1.5 V, 6 µA Iq, no auto-discharge, SOT-23-5 | Lacks auto-discharge; lower Iq suits ultra-long-life applications where Vout discharge is handled externally. | Select when minimal quiescent current (6 µA) outweighs need for integrated discharge; verify external discharge path design. |
| Torex XC6206P152MR-G | 150 mA, 1.5 V, 1.0 µA Iq, no CE pin, SOT-23-3 | Fixed-enable (no CE), no auto-discharge, smaller footprint but no control flexibility. | Choose for cost-sensitive, always-on applications where enable control and discharge are unnecessary. |
Compared with MCP1700T-1502E/TT and XC6206P152MR-G, the NCP582DXV15T2G uniquely combines 150 mA capability, 75 µA Iq, active-high CE with auto-discharge, and 30 µVRMS noise in a 6-pin SOT-563-making it optimal for compact, battery-powered systems requiring both low-noise regulation and controlled power sequencing.
Availability
NCP582DXV15T2G is available at Aetrix Electronics and suitable for portable medical sensors, wearable fitness trackers, and industrial IoT edge nodes requiring stable component supply, long-term lifecycle support, and Pb-free compliance.
Supply support for NCP582DXV15T2G 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, fast transient response, and high accuracy under varying load and temperature conditions.
FAQ
What is the maximum input voltage rating for the NCP582DXV15T2G?
The NCP582DXV15T2G has an absolute maximum input voltage (Vin) rating of 6.5 V. However, the recommended operating input voltage range is 2.0 V to 6.0 V per electrical characteristics testing conditions. Exceeding 6.5 V risks permanent damage due to junction breakdown, and operation above 6.0 V may degrade output accuracy and PSRR performance. Always observe derating guidelines for reliability in high-temperature environments.
Does the NCP582DXV15T2G require an external noise-reduction capacitor?
No, the NCP582DXV15T2G does not require an external noise-reduction capacitor. Its inherent CMOS architecture achieves 30 µVRMS output noise (10 Hz–100 kHz) without any additional bypass components. This simplifies layout and reduces BOM count compared to older bipolar LDOs that mandate external CNR pins and capacitors. The specified 0.47 µF ceramic output capacitor serves only for stability and transient response-not noise filtering.
How does the auto-discharge feature work on the NCP582DXV15T2G?
When the CE pin is driven low (disabled), the NCP582DXV15T2G activates an internal 60 Ω N-channel MOSFET between Vout and GND, actively discharging the output capacitor. This prevents residual voltage from back-powering downstream circuitry or interfering with system-level power sequencing. Discharge time depends on output capacitance and load; for example, a 0.47 µF capacitor discharges from 1.5 V to 0.1 V in <1 ms. The feature is exclusive to active-high variants like the NCP582DXV15T2G.
Can the NCP582DXV15T2G be used with ceramic output capacitors smaller than 0.47 µF?
No-onsemi specifies a minimum 0.47 µF ceramic output capacitor for the NCP582DXV15T2G when Vout = 1.5 V. Using smaller values risks instability, excessive overshoot during load transients, and degraded PSRR. The device is optimized for ESR <10 mΩ and capacitance ≥0.47 µF; X5R/X7R dielectrics are recommended. Deviations require full loop stability validation per Figure 22 load transient waveforms in the datasheet.
What is the thermal performance of the NCP582DXV15T2G in SOT-563 package?
In the SOT-563 package, the NCP582DXV15T2G has a maximum power dissipation rating of 500 mW at TA = 25°C, with a thermal resistance θJA of approximately 250°C/W. At 150 mA load and 1.5 V output with 3.3 V input (1.8 V dropout), power dissipation is ~270 mW-well within limits on standard FR-4 with 2 oz copper and two thermal vias. Derating begins above 25°C ambient; full 150 mA output is supported up to +85°C ambient only with adequate PCB copper area.
NCP582DXV15T2G 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):
- 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.70V @ 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
NCP582DXV15T2G FAQ
1.How can I place an order for NCP582DXV15T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP582DXV15T2G 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 NCP582DXV15T2G reliable?
The price and inventory of NCP582DXV15T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP582DXV15T2G is usually 5 days.
3.What payment methods are accepted for NCP582DXV15T2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP582DXV15T2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP582DXV15T2G?
NCP582DXV15T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP582DXV15T2G 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 NCP582DXV15T2G?
For technical support, including NCP582DXV15T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP582DXV15T2G requirements.
6.How does Aetrix verify that NCP582DXV15T2G is sourced from the original manufacturer or authorized distributors?
All NCP582DXV15T2G 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 NCP582DXV15T2G meets industry standards.
7.What is the process for return or replacement of NCP582DXV15T2G?
All NCP582DXV15T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCP582DXV15T2G, 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 NCP582DXV15T2G part is unused and in its original packaging.
Return procedure for NCP582DXV15T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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