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onsemi NCP583SQ25T1G
- Part No.:
- NCP583SQ25T1G
- Manufacturer:
- onsemi
- Package:
- SC-82A, SOT-343
- Datasheet:
-
NCP583SQ25T1G.pdf
- Description:
- IC REG LINEAR 2.5V 150MA SC82AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,092
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Product details
Overview
NCP583SQ25T1G from onsemi is an ultra-low quiescent current (1.0 µA typical), 2.5 V fixed-output CMOS low-dropout regulator in SC−82AB package, delivering up to 150 mA with 250 mV dropout at full load and ±2% output voltage accuracy - designed for battery-powered portable equipment requiring long runtime and stable voltage regulation.
For engineers reviewing the NCP583SQ25T1G datasheet, pinout, applications, or equivalent options, key selection criteria include its 1.0 µA IQ, 250 mV dropout at 150 mA, enable-controlled shutdown (0.1 µA), ±100 ppm/°C temperature drift, and compatibility with 1.0 µF ceramic output capacitance.
Technical Context
The NCP583SQ25T1G implements a CMOS-based LDO architecture with internal reference, error amplifier, and pass transistor, optimized for minimal static current draw while maintaining tight line (0.05%/V) and load (20 mV) regulation. Its CE pin enables active-high logic control of output state.
It operates across 1.7–6.0 V input range with thermal foldback protection and supports ambient temperatures from −40°C to +85°C. The device uses no external compensation and is stable with 1.0 µF ceramic output capacitor, eliminating need for electrolytic or tantalum alternatives.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±2% - ensures precise rail generation for 2.5 V logic, sensors, or RF bias without external feedback. |
| Max Output Current | 150 mA - sufficient for microcontrollers, PMIC rails, or sensor signal chains in space-constrained portable designs. |
| Dropout Voltage | 250 mV at 150 mA - enables operation down to Vin = 2.75 V, extending battery life in single-cell Li-ion or alkaline systems. |
| Quiescent Current | 1.0 µA typical - minimizes standby power loss, critical for always-on IoT nodes and wearables. |
| Shutdown Current | 0.1 µA typical - reduces system leakage when disabled via CE pin, supporting deep-sleep modes. |
| Line Regulation | 0.05%/V - maintains output stability despite battery voltage sag or supply ripple. |
| Temp Coefficient | ±100 ppm/°C - limits output drift to ±2.1 mV over −40°C to +85°C, suitable for precision analog front-ends. |
Pinout & Package
SC−82AB package (Case 419C), 4-pin surface-mount, 2.0 × 1.25 × 0.9 mm body, Pb-free, RoHS-compliant.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Vin | Input power supply connection; accepts 1.7–6.0 V; requires 1.0 µF ceramic decoupling to GND. |
| 2 | GND | Power ground reference; second GND pin shared internally; must be low-impedance PCB plane. |
| 3 | Vout | Regulated 2.5 V output; connects to 1.0 µF ceramic capacitor; sensitive to trace inductance. |
| 4 | CE | Active-high chip enable; drives high (>1.2 V) to activate regulator; pulls low (<0.3 V) for 0.1 µA shutdown. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ | 1.0 µA typical - extends battery life in multi-year coin-cell applications like smart meters and BLE sensors. |
| Low dropout | 250 mV @ 150 mA - allows use with depleting batteries while sustaining regulated 2.5 V output. |
| High accuracy | ±2% over temp/load - eliminates need for post-regulation trimming in production test. |
| Enable control | CMOS-compatible CE threshold (1.2 V high / 0.3 V low) - interfaces directly with MCU GPIOs without level shifters. |
| Thermal protection | Foldback current limiting - prevents thermal runaway during sustained overload or short-circuit conditions. |
Applications
| Portable Medical Sensors | Wearable Fitness Trackers |
|---|---|
Use Scenario: Continuous glucose monitor (CGM) using low-power ADC and Bluetooth LE radio. IC Role / Device Role / Timing Role: Primary 2.5 V supply for analog front-end and RF transceiver. Use Value: 1.0 µA quiescent current preserves coin-cell battery life beyond 12 months; ±2% accuracy ensures consistent ADC reference scaling. |
Use Scenario: Heart-rate monitoring wristband with optical PPG sensor and ARM Cortex-M0+ MCU. IC Role / Device Role / Timing Role: Regulated 2.5 V rail for photodiode amplifier and sensor interface circuitry. Use Value: 250 mV dropout enables operation until battery drops to 2.75 V, maximizing usable capacity from 3.0 V lithium polymer cell. |
| Industrial Wireless Node | Smart Home Sensor Hub |
Use Scenario: Battery-powered LoRaWAN node measuring temperature/humidity with integrated MCU. IC Role / Device Role / Timing Role: Standby power regulator enabling <1 µA system sleep current. Use Value: 0.1 µA shutdown current meets sub-µA deep-sleep requirements; CE pin synchronizes with MCU wake-up events. |
Use Scenario: Zigbee-enabled occupancy/motion sensor using passive infrared (PIR) and microcontroller. IC Role / Device Role / Timing Role: Stable 2.5 V supply for PIR signal conditioning and RF SoC core logic. Use Value: ±100 ppm/°C drift ensures consistent sensor offset calibration across −10°C to +50°C indoor environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2502E/TT | 250 mV dropout @ 250 mA; 1.6 µA IQ; SOT-23-5 package; no NC pin. | Higher output current but larger footprint; lacks dedicated NC pin for layout isolation. | Select when >150 mA load or SOT-23-5 board compatibility is required. |
| TNIV2525002RA | 2.5 V, 200 mV dropout @ 150 mA; 0.8 µA IQ; DFN-4 1.0×1.0 mm; no CE pin. | Smaller package and lower IQ, but no enable function - unsuitable for dynamic power gating. | Select when board space is critical and enable control is not needed. |
Compared with MCP1700T-2502E/TT and TNIV2525002RA, the NCP583SQ25T1G uniquely balances ultra-low IQ, enable functionality, and SC−82AB's compact 2.0×1.25 mm footprint - making it optimal for space- and power-constrained portable designs requiring active power management.
Availability
NCP583SQ25T1G is available at Aetrix Electronics and suitable for portable medical sensors, wearable fitness trackers, and industrial wireless nodes requiring stable component supply, long-term manufacturability, and RoHS-compliant packaging.
Supply support for NCP583SQ25T1G 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 NCP583 series belongs to onsemi's ultra-low-IQ LDO portfolio, engineered specifically for battery-powered portable devices where extended runtime, small size, and precision regulation are essential design constraints.
FAQ
What is the maximum input voltage rating for the NCP583SQ25T1G?
The NCP583SQ25T1G has a maximum input voltage rating of 6.5 V, with recommended operating input range specified as 1.7 V to 6.0 V in electrical characteristics. Exceeding 6.5 V may damage the device. This rating applies across the full −40°C to +85°C ambient temperature range and supports use with single-cell Li-ion, LiFePO₄, or multi-cell alkaline supplies feeding the NCP583SQ25T1G.
Does the NCP583SQ25T1G require an external capacitor on the output pin?
Yes, the NCP583SQ25T1G requires a 1.0 µF ceramic capacitor on the Vout pin for stability, as confirmed in the Application Information section. The datasheet specifies this value as the recommended minimum, and performance metrics such as load transient response and ripple rejection assume this capacitance. Using smaller values (e.g., 0.1 µF) degrades stability margin and increases output voltage deviation under dynamic load.
What is the function of Pin 4 (CE) on the NCP583SQ25T1G?
Pin 4 (CE) is the active-high chip enable input for the NCP583SQ25T1G. When CE is pulled above 1.2 V (typical), the regulator powers up and delivers 2.5 V to Vout; when CE is pulled below 0.3 V (typical), the device enters shutdown mode drawing only 0.1 µA. This pin allows precise system-level power sequencing and enables deep-sleep states in battery-powered applications using the NCP583SQ25T1G.
Is the NCP583SQ25T1G compatible with ceramic capacitors having low ESR?
Yes, the NCP583SQ25T1G is explicitly designed for use with low-ESR ceramic capacitors - the datasheet recommends a 1.0 µF ceramic capacitor on Vout and notes that "for better performance, select a capacitor with low Equivalent Series Resistance (ESR)." Low-ESR ceramics ensure optimal transient response and stability, and the NCP583SQ25T1G does not require the higher ESR of tantalum or aluminum electrolytic types.
What is the thermal junction-to-ambient resistance (RJA) for the NCP583SQ25T1G in its SC−82AB package?
The thermal junction-to-ambient resistance (RJA) for the NCP583SQ25T1G in SC−82AB package is 263°C/W, as listed in the Maximum Ratings table. This value assumes standard JEDEC 2-layer board conditions and defines the worst-case temperature rise per watt of dissipated power. For continuous 150 mA output at 2.5 V with 3.3 V input, power dissipation is ~120 mW, resulting in ~31.6°C junction rise above ambient - well within the 125°C max junction limit.
NCP583SQ25T1G 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):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.55V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 1.5 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-82AB
NCP583SQ25T1G FAQ
1.How can I place an order for NCP583SQ25T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP583SQ25T1G 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 NCP583SQ25T1G reliable?
The price and inventory of NCP583SQ25T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP583SQ25T1G is usually 5 days.
3.What payment methods are accepted for NCP583SQ25T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP583SQ25T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP583SQ25T1G?
NCP583SQ25T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP583SQ25T1G 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 NCP583SQ25T1G?
For technical support, including NCP583SQ25T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP583SQ25T1G requirements.
6.How does Aetrix verify that NCP583SQ25T1G is sourced from the original manufacturer or authorized distributors?
All NCP583SQ25T1G 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 NCP583SQ25T1G meets industry standards.
7.What is the process for return or replacement of NCP583SQ25T1G?
All NCP583SQ25T1G units undergo pre-shipment inspection (PSI). If there is an issue with NCP583SQ25T1G, 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 NCP583SQ25T1G part is unused and in its original packaging.
Return procedure for NCP583SQ25T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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