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onsemi NCP580SQ30T1G
- Part No.:
- NCP580SQ30T1G
- Manufacturer:
- onsemi
- Package:
- SC-82A, SOT-343
- Datasheet:
-
NCP580SQ30T1G.pdf
- Description:
- IC REG LINEAR 3V 120MA SC82AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,887
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Product details
Overview
NCP580SQ30T1G from onsemi is a 3.0 V, 120 mA ultra-low-dropout CMOS linear regulator with enable control, designed for precision voltage regulation in portable battery-powered systems. It delivers 1.5% output voltage accuracy, 150 mV dropout at 100 mA, 30 µVRMS output noise (no NR cap), and operates from 2.2 V to 6.0 V input across –40°C to +85°C ambient.
For engineers reviewing the NCP580SQ30T1G datasheet, pinout, applications, or equivalent options, key selection criteria include low quiescent current (90 µA), fast load transient response with 2.2 µF ceramic output capacitor, high PSRR (70 dB @ 1 kHz), and SC-82AB package compatibility for space-constrained handheld instrumentation.
Technical Context
The NCP580SQ30T1G employs a CMOS pass transistor architecture enabling ultra-low dropout and minimal ground current variation under load. Its internal bandgap reference and error amplifier deliver tight line regulation (0.02%/V) and load regulation (12 mV), while the active-high CE pin reduces shutdown current to 0.1 µA.
Designed for noise-sensitive analog and RF subsystems, it achieves 30 µVRMS integrated output noise (10 Hz–100 kHz) without external noise-reduction capacitance and maintains 100 ppm/°C output voltage temperature coefficient over full operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.0 V ±1.5% - ensures stable supply for 3.0 V logic, sensors, and RF front-ends requiring tight tolerance. |
| Max Output Current | 120 mA - sufficient to power microcontroller cores, ADCs, or small displays in portable devices. |
| Dropout Voltage | 180 mV @ 120 mA (typ.) - enables operation down to Vin = 3.18 V, extending battery runtime in single-cell Li-ion or 3×AA applications. |
| Quiescent Current | 90 µA @ no load - minimizes standby power loss in always-on monitoring circuits. |
| PSRR | 70 dB @ 1 kHz - suppresses switching noise from DC-DC converters feeding the LDO input. |
| Output Noise | 30 µVRMS (10 Hz–100 kHz) - suitable for powering PLLs, VCOs, and precision op-amps without added filtering. |
| Enable Threshold | VTH,ENH = 1.5 V min - compatible with 1.8 V and 3.3 V GPIO control signals. |
Pinout & Package
Package: SC-82AB (Case 419C-02), 4-pin surface-mount package measuring 1.90 mm × 1.30 mm × 0.95 mm (L × W × H), Pb-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - Vout | Regulated output terminal | Delivers stable 3.0 V supply; requires ≥2.2 µF ceramic capacitor placed adjacent to pin for stability and transient response. |
| 2 - GND | Power ground reference | Low-impedance return path for load and internal circuitry; must be connected to solid ground plane to minimize noise coupling. |
| 3 - CE | Active-high chip enable | Drives device into <0.1 µA shutdown when pulled low; logic-high ≥1.5 V enables regulation - supports system-level power sequencing. |
| 4 - Vin | Input power supply | Accepts 2.2–6.0 V input; requires 1.0 µF ceramic decoupling capacitor close to pin to suppress high-frequency noise. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 180 mV @ 120 mA enables use with depleting batteries or low-headroom intermediate rails. |
| Low-noise regulation | 30 µVRMS output noise eliminates need for external noise-reduction capacitor in sensitive analog signal chains. |
| Precision output accuracy | ±1.5% over temperature and line/load ensures reliable operation of 3.0 V I/O interfaces and ADC references. |
| Fast transient response | Stabilizes within <10 µs after 50 mA → 100 mA load step (with 2.2 µF Cout), supporting burst-mode digital loads. |
| Thermal & foldback protection | Internal thermal shutdown and current foldback prevent damage during overload or high ambient conditions. |
Applications
| Portable Medical Sensors | Wireless IoT End Nodes |
|---|---|
Use Scenario: Continuous glucose monitor (CGM) using low-power MCU and analog front-end. IC Role / Device Role / Timing Role: Primary 3.0 V supply for ADC reference, op-amp biasing, and BLE radio VDD_IO. Use Value: 90 µA quiescent current extends coin-cell life; 30 µVRMS noise prevents measurement drift in sub-mV biosignal amplification. | Use Scenario: Battery-powered environmental sensor node transmitting temperature/humidity via LoRaWAN. IC Role / Device Role / Timing Role: Stable 3.0 V rail for ultra-low-power MCU, RF transceiver, and precision temperature sensor. Use Value: 150 mV dropout allows operation until battery drops to 3.15 V, maximizing usable capacity of 3.6 V Li-SOCl₂ cell. |
| Industrial Handheld Scanners | Automotive Cabin Camera Modules |
Use Scenario: Rugged barcode scanner with laser diode driver and image sensor. IC Role / Device Role / Timing Role: Clean 3.0 V supply for CMOS image sensor interface and flash memory I/O. Use Value: 70 dB PSRR isolates sensor analog chain from digital switching noise generated by motor drivers and display backlight ICs. | Use Scenario: Low-light cabin camera with HDR image sensor and ISP processing. IC Role / Device Role / Timing Role: Secondary regulated 3.0 V rail for image sensor analog supply and clock buffer ICs. Use Value: 100 ppm/°C tempco ensures consistent color balance and exposure calibration across –40°C to +85°C automotive temperature 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-3002E/MB | 3.0 V, 250 mA, 1.8 µA IQ, SOT-23-3 (no CE pin) | Lacks enable control and has higher dropout (600 mV @ 250 mA); suited for always-on, ultra-low-IQ apps only. | Select if shutdown current <1 µA is critical and enable functionality is unnecessary. |
| Torex XC6206P302MR-G | 3.0 V, 250 mA, 1.0 µA IQ, SOT-23-3 (CE pin, but 1.2 V threshold) | Lower IQ but CE threshold (1.2 V) may not interface cleanly with 1.8 V GPIO; dropout 400 mV @ 250 mA. | Choose when lowest possible standby power is required and host controller supports 1.2 V logic-high enable. |
Compared with MCP1700T-3002E/MB and XC6206P302MR-G, the NCP580SQ30T1G provides balanced performance: integrated enable with robust 1.5 V threshold, ultra-low noise without NR cap, and optimal dropout for 3.0 V systems - making it preferred for mixed-signal portable designs where regulation quality and controllability are both essential.
Availability
NCP580SQ30T1G is available at Aetrix Electronics and suitable for portable medical sensors, wireless IoT end nodes, and industrial handheld scanners requiring stable component supply, long-term lifecycle support, and guaranteed Pb-free compliance.
Supply support for NCP580SQ30T1G 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 silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCP580 series belongs to onsemi's precision analog power management portfolio, engineered specifically for battery-powered portable electronics demanding ultra-low noise, low IQ, and high accuracy in miniature packages.
FAQ
What is the maximum input voltage rating for the NCP580SQ30T1G?
The NCP580SQ30T1G has an absolute maximum input voltage rating of 6.5 V. However, the recommended operating input voltage range is 2.2 V to 6.0 V per the electrical characteristics table. Exceeding 6.5 V risks permanent damage. For reliable 3.0 V output regulation, Vin must remain ≥3.18 V (3.0 V + 180 mV dropout) under full 120 mA load.
Does the NCP580SQ30T1G require an external noise-reduction capacitor?
No, the NCP580SQ30T1G does not require an external noise-reduction capacitor. Its 30 µVRMS output noise (10 Hz–100 kHz) is achieved internally, as confirmed in the datasheet's Electrical Characteristics table. Adding an NR capacitor is unnecessary and may degrade stability or transient response.
What package type and dimensions does the NCP580SQ30T1G use?
The NCP580SQ30T1G uses the SC-82AB package (Case 419C-02), a 4-pin surface-mount package measuring 1.90 mm × 1.30 mm × 0.95 mm. Pin 1 is Vout, Pin 2 is GND, Pin 3 is CE, and Pin 4 is Vin - verified from the "PIN FUNCTION DESCRIPTION" section and marking diagram on page 2 of the NCP580 datasheet.
How does the enable (CE) pin function on the NCP580SQ30T1G?
On the NCP580SQ30T1G, the CE pin is active-high with a minimum threshold of 1.5 V. When CE ≥1.5 V, the device regulates; when CE <0.3 V, it enters shutdown mode drawing only 0.1 µA. This matches standard 1.8 V and 3.3 V GPIO logic levels, enabling clean system power sequencing without level-shifting.
What is the typical dropout voltage of the NCP580SQ30T1G at 120 mA load?
The typical dropout voltage of the NCP580SQ30T1G at 120 mA load is 180 mV, as specified in the Electrical Characteristics table for VOUT = 2.8 V to 3.3 V. At exactly 3.0 V output, this means the device maintains regulation as long as input voltage stays ≥3.18 V - critical for maximizing runtime in single-cell lithium-based power sources.
NCP580SQ30T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SC-82A, SOT-343
- 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):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.28V @ 120mA
- Current - Output:
- 120mA
- Current - Quiescent (Iq):
- 160 µA
- Current - Supply (Max):
- -
- PSRR:
- 70dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-82AB
NCP580SQ30T1G FAQ
1.How can I place an order for NCP580SQ30T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP580SQ30T1G 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 NCP580SQ30T1G reliable?
The price and inventory of NCP580SQ30T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP580SQ30T1G is usually 5 days.
3.What payment methods are accepted for NCP580SQ30T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP580SQ30T1G transactions.
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4.How is shipping managed for NCP580SQ30T1G?
NCP580SQ30T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP580SQ30T1G 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 NCP580SQ30T1G?
For technical support, including NCP580SQ30T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP580SQ30T1G requirements.
6.How does Aetrix verify that NCP580SQ30T1G is sourced from the original manufacturer or authorized distributors?
All NCP580SQ30T1G 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 NCP580SQ30T1G meets industry standards.
7.What is the process for return or replacement of NCP580SQ30T1G?
All NCP580SQ30T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP580SQ30T1G, 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 NCP580SQ30T1G part is unused and in its original packaging.
Return procedure for NCP580SQ30T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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