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onsemi NCP552SQ25T1
- Part No.:
- NCP552SQ25T1
- Manufacturer:
- onsemi
- Package:
- SC-82A, SOT-343
- Datasheet:
-
NCP552SQ25T1.pdf
- Description:
- IC REG LINEAR 2.5V 80MA SC82AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,738
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Product details
Overview
NCP552SQ25T1 from onsemi is a fixed-output 2.5 V, 80 mA CMOS low-IQ NOCAP linear regulator in SC82-AB (SC70-4) package, featuring 2.8 µA typical quiescent current, ±2.0% output voltage accuracy, and an enable pin for ON/OFF control-designed for battery-powered portable devices requiring ultra-low standby power.
For engineers reviewing the NCP552SQ25T1 datasheet, pinout, applications, or equivalent options, key selection criteria include dropout voltage at 80 mA (max 800 mV), operation without output capacitor, industrial temperature range (−40°C to +85°C), and compatibility with low-ESR ceramic decoupling.
Technical Context
The NCP552SQ25T1 integrates a PMOS pass transistor, precision voltage reference, error amplifier, and thermal/overcurrent protection circuits. Its NOCAP architecture eliminates mandatory output capacitance, enabling stable regulation with only input decoupling (≥1.0 µF).
Enable functionality is implemented as a logic-controlled shutdown input with 1.3 V turn-on threshold and 0.3 V turn-off threshold; unused Enable must be tied to Vin. Dropout voltage is specified at 3.0% output deviation under full load across −40°C to +125°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.5 V ±2.0% (ensures stable rail for 2.5 V logic or analog circuitry) |
| Quiescent Current | 2.8 µA typical (enables multi-year battery life in always-on sensor nodes) |
| Max Output Current | 80 mA (supports low-power microcontrollers, RF transceivers, and sensors) |
| Dropout Voltage | 800 mV max at 80 mA (allows operation down to Vin = 3.3 V for 2.5 V output) |
| Line Regulation | 4.5 mV/V (minimizes output variation during battery voltage sag) |
| Operating Temp | −40°C to +85°C (suitable for consumer and industrial ambient environments) |
| Input Voltage Range | Up to 12 V (supports single-cell Li-ion, dual-cell alkaline, or USB-powered systems) |
Pinout & Package
The NCP552SQ25T1 is housed in the SC82-AB (SC70-4) surface-mount package-1.8 mm × 1.15 mm footprint, 0.9 mm height, 4-pin configuration with 0.65 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power supply ground reference; must be low-impedance connection to minimize noise coupling |
| 2 | Vin | Positive input supply; requires ≥1.0 µF ceramic decoupling placed adjacent to pin |
| 3 | Vout | Regulated 2.5 V output; stable without output capacitor but benefits from ≥0.1 µF for transient response |
| 4 | Enable | Active-high enable control; pulls low to disable regulator (IQ drops to 0.1 µA); tie to Vin if unused |
Key Features
| Feature | Design Value |
|---|---|
| NOCAP operation | Stable regulation with no mandatory output capacitor-reduces BOM count and board space |
| Ultra-low IQ | 2.8 µA typical enables >10-year battery life in 10 µA average-load applications |
| Enable pin | Logic-compatible ON/OFF control with defined 1.3 V/0.3 V thresholds-no external pull-up needed |
| Thermal shutdown | Internal protection activates at ~160°C junction temperature-prevents damage during overload or poor heatsinking |
| Pb-free packaging | RoHS-compliant SC82-AB package supports lead-free reflow assembly per J-STD-020 |
Applications
| Wireless Sensor Nodes | Portable Medical Monitors |
|---|---|
Use Scenario: Battery-powered environmental sensor node logging temperature/humidity every 5 minutes using BLE transmission. IC Role / Device Role / Timing Role: Primary 2.5 V power rail regulator for MCU, sensor ICs, and RF transceiver-enabled only during active measurement/transmit cycles. Use Value: 2.8 µA quiescent current extends CR2032 battery life beyond 5 years; NOCAP design simplifies layout in space-constrained PCB. | Use Scenario: Handheld pulse oximeter operating from two AAA alkaline cells with intermittent display and measurement bursts. IC Role / Device Role / Timing Role: Stable 2.5 V supply for analog front-end (AFE), ADC, and low-power display driver-disabled between readings via microcontroller GPIO. Use Value: 800 mV dropout allows full utilization of battery voltage down to 3.3 V; ±2.0% accuracy ensures consistent AFE biasing. |
| Industrial Handheld Scanners | Low-Power IoT Edge Devices |
Use Scenario: Rugged barcode scanner powered by rechargeable Li-ion, requiring reliable operation across −20°C to +60°C ambient. IC Role / Device Role / Timing Role: Main system regulator delivering 2.5 V to imaging sensor, decode ASIC, and interface logic-activated only during scan trigger. Use Value: −40°C to +85°C rating ensures cold-storage reliability; enable pin synchronizes power with host controller wake-up signals. | Use Scenario: Smart meter endpoint with LoRaWAN connectivity, sampling utility data hourly and transmitting daily. IC Role / Device Role / Timing Role: Low-noise 2.5 V supply for precision metrology ADC and sub-GHz transceiver-powered via energy-harvesting storage capacitor. Use Value: 90 µVRMS output noise prevents signal corruption in 24-bit ADC measurements; SC70-4 footprint minimizes PCB area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-IQ LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2502E/TT | 2.5 V, 250 mA, 1.6 µA IQ, no enable pin, SOT-23-3 package | Lacks enable control; higher current capability but larger footprint and no shutdown mode | Select when higher output current is required and enable functionality is unnecessary |
| TNIV250025000 | 2.5 V, 150 mA, 3.5 µA IQ, enable pin, X2-DFN2020-6 package | 6-pin DFN with separate GND and VIN pins; slightly higher IQ and different pinout | Select when thermal performance under 100+ mA load is critical and board layout accommodates 6-pin DFN |
Compared with MCP1700T-2502E/TT and TNIV250025000, the NCP552SQ25T1 uniquely combines ultra-low 2.8 µA quiescent current, integrated enable, SC70-4 compactness, and NOCAP operation-making it optimal for space- and battery-life-constrained designs where dynamic power gating is essential.
Availability
NCP552SQ25T1 is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, and industrial handheld scanners requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for NCP552SQ25T1 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 NCP552SQ25T1 belongs to onsemi's NOCAP LDO family-engineered specifically for ultra-low-power portable electronics where minimal quiescent current, small size, and capacitor-free operation are critical system requirements.
FAQ
What is the maximum input voltage rating for the NCP552SQ25T1?
The NCP552SQ25T1 has a maximum input voltage rating of 12 V, as specified in its Absolute Maximum Ratings table. Operation above this voltage risks permanent device damage. For reliable 2.5 V output regulation, input should remain within 2.5 V + dropout (≤3.3 V at 80 mA) up to 12 V, with thermal limits observed at higher differentials.
Does the NCP552SQ25T1 require an output capacitor to function?
No, the NCP552SQ25T1 is designed as a NOCAP regulator and operates stably without an output capacitor. However, adding ≥0.1 µF ceramic capacitance improves load transient response and noise rejection-especially beneficial in systems with pulsed loads like RF transceivers or digital sensors.
What is the enable pin behavior of the NCP552SQ25T1?
The NCP552SQ25T1 enable pin is active-high: pulling it ≥1.3 V turns the regulator ON; pulling it ≤0.3 V disables output and reduces quiescent current to 0.1 µA. If unused, the pin must be tied directly to Vin-floating or capacitive coupling may cause erratic operation or increased leakage.
What is the dropout voltage specification for the NCP552SQ25T1 at full load?
At 80 mA output current and −40°C to +125°C junction temperature, the NCP552SQ25T1 has a maximum dropout voltage of 800 mV-defined as the Vin–Vout differential at which output drops 3.0% below nominal 2.5 V. This allows operation from a 3.3 V supply while maintaining regulation across temperature and load.
Is the NCP552SQ25T1 suitable for automotive applications?
The NCP552SQ25T1 is rated for −40°C to +85°C ambient operation and is not AEC-Q200 qualified. For automotive use, the pin-compatible NCV553SQ25T1 variant is specified for −40°C to +125°C and qualified for automotive applications-offering identical electrical performance with enhanced temperature and reliability validation.
NCP552SQ25T1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- NOCAP™
- 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):
- 12V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.4V @ 80mA
- Current - Output:
- 80mA
- Current - Quiescent (Iq):
- 1 µA
- Current - Supply (Max):
- 6 µA
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-82AB
NCP552SQ25T1 FAQ
1.How can I place an order for NCP552SQ25T1 through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP552SQ25T1 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 NCP552SQ25T1 reliable?
The price and inventory of NCP552SQ25T1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP552SQ25T1 is usually 5 days.
3.What payment methods are accepted for NCP552SQ25T1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP552SQ25T1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP552SQ25T1?
NCP552SQ25T1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP552SQ25T1 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 NCP552SQ25T1?
For technical support, including NCP552SQ25T1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP552SQ25T1 requirements.
6.How does Aetrix verify that NCP552SQ25T1 is sourced from the original manufacturer or authorized distributors?
All NCP552SQ25T1 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 NCP552SQ25T1 meets industry standards.
7.What is the process for return or replacement of NCP552SQ25T1?
All NCP552SQ25T1 units undergo pre-shipment inspection (PSI). If there is an issue with NCP552SQ25T1, 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 NCP552SQ25T1 part is unused and in its original packaging.
Return procedure for NCP552SQ25T1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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