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onsemi NCP582DXV18T2G
- Part No.:
- NCP582DXV18T2G
- Manufacturer:
- onsemi
- Package:
- SOT-563, SOT-666
- Datasheet:
-
NCP582DXV18T2G.pdf
- Description:
- IC REG LINEAR 1.8V 150MA SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:1,214
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Product details
Overview
NCP582DXV18T2G from onsemi is an ultra-fast, low-noise 150 mA CMOS LDO regulator with active-high enable and auto-discharge functionality, delivering a fixed 1.8 V output. It features 220 mV dropout at 150 mA, 30 µVRMS output noise (10 Hz–100 kHz), and ±2% output voltage accuracy over −40°C to +85°C. Designed for portable battery-powered systems, it powers core logic rails in handheld instrumentation and camcorders.
For engineers reviewing the NCP582DXV18T2G datasheet, pinout, applications, or equivalent options, key selection criteria include its SOT-563 package, 75 µA quiescent current, 70 dB PSRR at 1 kHz, 100 ppm/°C temperature coefficient, and compatibility with 0.47 µF ceramic output capacitance.
Technical Context
The NCP582DXV18T2G integrates a PMOS pass transistor enabling ultra-low dropout and fast transient response. Its internal bandgap reference and error amplifier deliver tight line regulation (0.02%/V) and load regulation (22 mV), while the active-high CE pin controls startup/shutdown with auto-discharge via an internal N-channel switch (60 Ω typical).
It operates across 2.0–6.0 V input range with 1.8 V fixed output, supports stable operation with 0.47 µF ceramic output capacitor, and includes foldback current limiting and thermal shutdown. The device meets Pb-free requirements and is rated for −40°C to +85°C ambient operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8 V ±2% - ensures stable core supply for 1.8 V logic interfaces without external feedback. |
| Max Output Current | 150 mA - sufficient for powering microcontroller I/O banks or sensor signal chains. |
| Dropout Voltage | 220 mV at 150 mA - enables operation down to Vin = 2.02 V, extending battery life in single-cell Li-ion or alkaline systems. |
| Quiescent Current | 75 µA typical - minimizes standby power loss in always-on subsystems like real-time clocks or wake-up monitors. |
| PSRR | 70 dB at 1 kHz - suppresses switching noise from upstream DC-DC converters feeding the LDO input. |
| Output Noise | 30 µVRMS (10 Hz–100 kHz) - suitable for noise-sensitive analog circuits such as ADC references or RF bias rails. |
| Temp Coefficient | 100 ppm/°C - maintains <±1.5 mV output drift over full temperature range, critical for precision analog front-ends. |
Pinout & Package
SOT-563 (XV suffix, Case 463A) - 6-pin, 1.6 mm × 1.2 mm × 0.6 mm surface-mount package with two ground pins for improved thermal and noise performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (CE) | Chip Enable (active high) | Logic-high (>1.5 V) enables regulator; auto-discharge path activates when disabled. |
| 2 (GND) | Power Ground | Primary ground return for internal circuitry and pass element; connects to PCB ground plane. |
| 3 (Vout) | Regulated Output | Delivers stable 1.8 V; requires 0.47 µF ceramic capacitor placed adjacent to pin per layout guidelines. |
| 4 (NC) | No Connect | Internally unconnected; must be left floating or tied to GND per PCB design rules (no electrical function). |
| 5 (GND) | Power Ground | Secondary ground terminal - improves thermal dissipation and reduces ground loop impedance. |
| 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 at 150 mA enables use with depleted batteries or low-headroom inputs. |
| Low-noise regulation | 30 µVRMS output noise eliminates need for external noise-reduction capacitors in sensitive analog paths. |
| Auto-discharge function | Internal 60 Ω N-channel switch discharges Vout rapidly after shutdown, preventing unintended system wake-up. |
| Fast dynamic response | Load transient recovery within microseconds (per Fig. 21–22) maintains stability during processor burst-mode operation. |
| Pb-free & RoHS compliant | SOT-563 package meets environmental compliance requirements for global industrial and consumer shipments. |
Applications
| Handheld Instrumentation | Camcorders & Digital Cameras |
|---|---|
Use Scenario: Powering 1.8 V FPGA configuration memory and sensor interface logic in portable multimeters or spectrum analyzers. IC Role / Device Role / Timing Role: Primary low-noise, low-quiescent-current LDO supplying clean 1.8 V rail to mixed-signal ICs. Use Value: 30 µVRMS noise and 100 ppm/°C drift ensure measurement repeatability across operating temperature range. | Use Scenario: Regulating power to image signal processors (ISPs) and high-speed serial interfaces (e.g., MIPI CSI-2) in compact video capture modules. IC Role / Device Role / Timing Role: Core voltage regulator for digital imaging subsystems requiring fast load transient response and minimal voltage droop. Use Value: 220 mV dropout and sub-100 µA IQ extend runtime during burst recording while maintaining 1.8 V accuracy under varying load. |
| Portable Medical Devices | Wearable Health Monitors |
Use Scenario: Supplying 1.8 V to low-power microcontrollers and analog front-end sensors (ECG, SpO₂) in battery-operated diagnostic tools. IC Role / Device Role / Timing Role: Precision LDO ensuring stable MCU core voltage and reference integrity during intermittent wireless transmission. Use Value: ±2% output accuracy and 70 dB PSRR prevent data corruption caused by switching noise from BLE/Wi-Fi radios. | Use Scenario: Powering accelerometer, gyroscope, and Bluetooth LE SoC in fitness trackers where size and battery life are critical. IC Role / Device Role / Timing Role: Compact, efficient LDO delivering regulated 1.8 V from coin-cell or small Li-po sources. Use Value: SOT-563 footprint (1.6 × 1.2 mm) saves board space; 75 µA IQ enables multi-week operation on a single charge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1802E/TT | 250 mV dropout at 250 mA; 1.8 V ±1%; 1.6 µA IQ; SOT-23-3 package | Lacks enable pin and auto-discharge; lower IQ but no shutdown control | Select when ultra-low standby power outweighs need for controlled shutdown sequencing. |
| Torex XC6206P182MR-G | 300 mV dropout at 150 mA; 1.8 V ±2%; 1 µA IQ; SOT-25 package; no auto-discharge | Higher dropout limits minimum input voltage; no CE-controlled discharge path | Choose for cost-sensitive, non-critical applications where rapid Vout discharge is unnecessary. |
Compared with MCP1700T-1802E/TT and XC6206P182MR-G, the NCP582DXV18T2G uniquely combines active-high enable, auto-discharge, ultra-low dropout, and low-noise operation in a space-efficient 6-pin SOT-563 - making it optimal for portable systems requiring precise power sequencing and noise immunity.
Availability
NCP582DXV18T2G is available at Aetrix Electronics and suitable for portable instrumentation, wearable health monitors, and camcorder power management requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for NCP582DXV18T2G 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 battery-powered portable equipment demanding low noise, low dropout, and fast transient response.
FAQ
What is the recommended input and output capacitor for NCP582DXV18T2G?
The NCP582DXV18T2G requires a 1.0 µF ceramic capacitor between Vin and GND. For the output, a 0.47 µF ceramic capacitor is recommended due to the 1.8 V output voltage (≤2.5 V threshold). Both capacitors must have low ESR and be placed as close as possible to their respective pins to ensure stability and optimal transient response, per the manufacturer's layout guidance.
Does NCP582DXV18T2G support automatic discharge of the output capacitor when disabled?
Yes, the NCP582DXV18T2G includes an integrated auto-discharge function activated when the CE pin is driven low. An internal N-channel MOSFET (60 Ω typical on-resistance) connects Vout to GND, discharging the output capacitor rapidly to prevent residual voltage from interfering with downstream logic states or causing unintended wake-up events in battery-powered systems.
What is the maximum junction temperature and thermal derating behavior of NCP582DXV18T2G?
The NCP582DXV18T2G has a maximum junction temperature of 125°C and is rated for operation from −40°C to +85°C ambient. Its SOT-563 package provides 500 mW maximum power dissipation. Thermal derating begins above 85°C ambient, with safe operating area constrained by ambient temperature, PCB copper area, and airflow - full 150 mA output is only guaranteed up to +85°C ambient with adequate heatsinking.
Can NCP582DXV18T2G be used with input voltages below 2.0 V?
No, the NCP582DXV18T2G specifies a minimum input voltage of 2.0 V in its Recommended Operating Conditions. Operation below 2.0 V may result in improper regulation, failure to maintain 1.8 V output, or undefined behavior of the CE pin threshold. For sub-2.0 V inputs, alternative LDOs with lower VIN(min) - such as those supporting 1.7 V input - should be evaluated.
Is NCP582DXV18T2G pin-compatible with other variants in the NCP582 family?
Yes, all SOT-563-packaged NCP582 variants - including NCP582DXV15T2G, NCP582DXV25T2G, and NCP582LXV18T2G - share identical pinout and footprint. However, the NCP582DXV18T2G (active-high CE) is not functionally interchangeable with active-low versions (e.g., NCP582LXV18T2G) without modifying the enable logic in the host system.
NCP582DXV18T2G 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):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.55V @ 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
NCP582DXV18T2G FAQ
1.How can I place an order for NCP582DXV18T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP582DXV18T2G 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 NCP582DXV18T2G reliable?
The price and inventory of NCP582DXV18T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP582DXV18T2G is usually 5 days.
3.What payment methods are accepted for NCP582DXV18T2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP582DXV18T2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP582DXV18T2G?
NCP582DXV18T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP582DXV18T2G 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 NCP582DXV18T2G?
For technical support, including NCP582DXV18T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP582DXV18T2G requirements.
6.How does Aetrix verify that NCP582DXV18T2G is sourced from the original manufacturer or authorized distributors?
All NCP582DXV18T2G 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 NCP582DXV18T2G meets industry standards.
7.What is the process for return or replacement of NCP582DXV18T2G?
All NCP582DXV18T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCP582DXV18T2G, 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 NCP582DXV18T2G part is unused and in its original packaging.
Return procedure for NCP582DXV18T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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