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onsemi NCP114ASN250T2G
- Part No.:
- NCP114ASN250T2G
- Manufacturer:
- onsemi
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
NCP114ASN250T2G.pdf
- Description:
- IC REG LINEAR 2.5V 300MA 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,134
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Product details
Overview
NCP114ASN250T2G from onsemi is a 300 mA CMOS low-dropout (LDO) voltage regulator with fixed 2.5 V output, designed for noise-sensitive, space-constrained battery-powered systems. It delivers ±1% output accuracy at room temperature, 135 mV typical dropout at 300 mA, and 75 dB PSRR at 1 kHz - enabling stable power delivery in portable medical devices and wireless handsets.
For engineers reviewing the NCP114ASN250T2G datasheet, pinout, applications, or equivalent options, key selection criteria include quiescent current (50 µA typ.), thermal shutdown (160°C), active discharge capability (enabled in SN suffix variants), and compatibility with 1 µF ceramic output capacitors.
Technical Context
The NCP114ASN250T2G uses a PMOS pass transistor architecture to achieve ultra-low quiescent current and high PSRR. Its dynamic IQ adjustment reduces ground current under light load, while integrated thermal shutdown and current limiting protect against overload and overheating.
It operates across 1.7 V to 5.5 V input range and maintains regulation down to 135 mV dropout at full 300 mA load. The TSOP-5 package (Case 483) supports thermal dissipation via exposed pad grounding and features an N/C pin (Pin 4) usable for enhanced thermal conduction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±1% at room temperature - ensures precise biasing for RF front-ends and ADC references. |
| Max Output Current | 300 mA continuous - sufficient for powering baseband processors or Bluetooth SoCs in handheld devices. |
| Dropout Voltage | 150 mV typical at 300 mA (TSOP-5) - enables operation from single-cell Li-ion (3.0 V min) with margin. |
| Quiescent Current | 50 µA typical at no load - extends battery life in always-on sensor nodes and wearable standby modes. |
| PSRR | 75 dB at 1 kHz - suppresses switching noise from adjacent DC/DC converters in mixed-signal PCBs. |
| Stability | Guaranteed with ≥1 µF X7R/X5R ceramic output capacitor - eliminates need for tantalum or electrolytic parts. |
| Enable Threshold | VEN_HI = 0.9 V, VEN_LO = 0.4 V - compatible with 1.8 V and 3.3 V GPIOs without level-shifting. |
Pinout & Package
Package: TSOP-5 (Case 483), 3.00 × 1.50 × 0.95 mm, Pb-free, with exposed thermal pad connected to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input voltage supply | Accepts 1.7–5.5 V; requires local 1 µF ceramic decoupling to minimize trace inductance effects. |
| 2 (OUT) | Regulated output | Delivers stable 2.5 V; connects directly to load and 1 µF output capacitor - no ESR requirement. |
| 3 (GND) | Power ground reference | Common return path; exposed pad must be soldered to large GND copper area for thermal management. |
| 4 (N/C) | No-connect terminal | Internally unconnected; may be tied to GND to improve thermal dissipation without electrical impact. |
| 5 (EN) | Enable control input | Logic-high (>0.9 V) enables regulation; logic-low (<0.4 V) disables output and activates 100 Ω active discharge. |
Key Features
| Feature | Design Value |
|---|---|
| Active output discharge | 100 Ω pull-down path to GND when disabled - prevents floating voltage on powered-down rails in multi-rail systems. |
| Thermal shutdown + hysteresis | Triggers at 160°C (typ.), resets at 140°C - protects IC during sustained overload without latch-up. |
| Low-noise operation | 70 µVRMS (10 Hz–100 kHz) at 1.8 V output - suitable for powering precision analog front-ends and PLLs. |
| Ultra-low IQ with dynamic adjustment | 50 µA typ. at no load, rising only as needed with output current - optimizes battery runtime across operating modes. |
| Robust short-circuit protection | Limits output to 600 mA (typ.) at 90% VOUT; sustains indefinite short without damage - simplifies system-level fault handling. |
Applications
| Wireless Handset Power Management | Portable Medical Sensor Node |
|---|---|
Use Scenario: Powering Bluetooth LE transceiver and MCU core in compact hearing aids or pulse oximeters. IC Role / Device Role / Timing Role: Primary 2.5 V LDO supplying RF section and digital logic; provides clean, low-noise rail independent of battery voltage sag. Use Value: Enables >10-day battery life via 50 µA quiescent current and maintains 75 dB PSRR to prevent RF desense during transmission bursts. |
Use Scenario: Regulating power for low-power ECG amplifier and SAR ADC in disposable patch monitors. IC Role / Device Role / Timing Role: Precision 2.5 V reference-grade supply ensuring <±1% ADC accuracy across temperature and battery discharge. Use Value: ±1% output accuracy and 135 mV dropout allow direct use of declining Li-ion cells (3.6 V → 2.7 V) without brownout risk. |
| Smartphone Camera Module | Industrial IoT Edge Node |
Use Scenario: Supplying image signal processor (ISP) and CIS sensor in dual-camera subsystems. IC Role / Device Role / Timing Role: Dedicated low-noise 2.5 V rail isolating analog sensor circuitry from noisy digital domains. Use Value: 70 µVRMS output noise and 75 dB PSRR prevent spurious patterns in high-resolution images under variable load conditions. |
Use Scenario: Powering LoRaWAN transceiver and ARM Cortex-M microcontroller in remote environmental sensors. IC Role / Device Role / Timing Role: Always-on 2.5 V regulator supporting deep-sleep wake-up events with sub-100 µA total system current. Use Value: Active discharge clears residual charge on sensor interface lines during sleep transitions, preventing false wake-ups. |
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/MB | 250 mA max output, 170 mV dropout at 250 mA, no active discharge, SOT-23-5 package | Lacks enable-controlled discharge; lower current rating limits use in higher-power RF stages | Select when board space is constrained and active discharge is unnecessary; verify thermal margin at 300 mA. |
| Torex XC6206P252MR-G | 150 mA max output, 160 mV dropout at 150 mA, no thermal shutdown, SOT-25 package | Lower current and missing overtemperature protection reduce robustness in thermally dense layouts | Consider only for ultra-low-cost, low-current sensor interfaces where full 300 mA capability is unused. |
Compared with MCP1700T-2502E/MB and XC6206P252MR-G, the NCP114ASN250T2G offers higher output current, guaranteed thermal shutdown, and active discharge - making it preferable for battery-powered systems requiring reliability, fast turn-off, and extended runtime.
Availability
NCP114ASN250T2G is available at Aetrix Electronics and suitable for wireless handsets, portable medical equipment, and industrial IoT edge nodes requiring stable component supply with full lifecycle support.
Supply support for NCP114ASN250T2G 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 specializing in energy-efficient power management, analog, and sensor solutions for automotive, industrial, and portable electronics.
The NCP114ASN250T2G belongs to onsemi's high-performance LDO family engineered for ultra-low quiescent current and high PSRR in battery-powered portable applications - targeting smartphones, wearables, and medical instrumentation.
FAQ
What is the dropout voltage specification for NCP114ASN250T2G at 300 mA load?
The NCP114ASN250T2G has a typical dropout voltage of 150 mV at 300 mA output current in the TSOP-5 package. This value is measured when the output voltage drops 100 mV below nominal 2.5 V, confirming reliable regulation down to VIN = 2.65 V under full load - critical for maintaining operation across Li-ion battery discharge curves.
Does NCP114ASN250T2G include active output discharge functionality?
Yes, NCP114ASN250T2G includes active output discharge. When the EN pin is driven below 0.4 V, an internal 100 Ω switch pulls the OUT pin to GND, rapidly discharging external capacitance. This feature is confirmed in the ordering information table for SN-suffix variants and prevents unintended voltage coupling in multi-rail power sequencing.
What output capacitor is required for stability with NCP114ASN250T2G?
The NCP114ASN250T2G is stable with a minimum 1 µF X7R or X5R ceramic capacitor on the OUT pin. No ESR requirement exists, but maximum ESR must be under 2 Ω. Larger values (e.g., 4.7 µF) improve transient response and high-frequency PSRR - verified in Figures 26 and 39 of the datasheet.
What is the quiescent current of NCP114ASN250T2G at zero load?
The NCP114ASN250T2G draws 50 µA typical quiescent current at no load and 25°C junction temperature. This value increases slightly with temperature and input voltage but remains below 95 µA across −40°C to +85°C - enabling multi-year battery life in always-on sensor applications.
How does the enable pin (EN) interface with common microcontroller GPIOs?
The EN pin of NCP114ASN250T2G has a guaranteed high threshold of 0.9 V and low threshold of 0.4 V, making it compatible with 1.8 V and 3.3 V logic families without external level shifters. Its 300 nA internal pull-down ensures default disable state if left floating - simplifying design for microcontrollers with limited GPIO count.
NCP114ASN250T2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 95 µA
- Current - Supply (Max):
- -
- PSRR:
- 75dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-TSOP
NCP114ASN250T2G FAQ
1.How can I place an order for NCP114ASN250T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP114ASN250T2G 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 NCP114ASN250T2G reliable?
The price and inventory of NCP114ASN250T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP114ASN250T2G is usually 5 days.
3.What payment methods are accepted for NCP114ASN250T2G?
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4.How is shipping managed for NCP114ASN250T2G?
NCP114ASN250T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP114ASN250T2G 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 NCP114ASN250T2G?
For technical support, including NCP114ASN250T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP114ASN250T2G requirements.
6.How does Aetrix verify that NCP114ASN250T2G is sourced from the original manufacturer or authorized distributors?
All NCP114ASN250T2G 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 NCP114ASN250T2G meets industry standards.
7.What is the process for return or replacement of NCP114ASN250T2G?
All NCP114ASN250T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCP114ASN250T2G, 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 NCP114ASN250T2G part is unused and in its original packaging.
Return procedure for NCP114ASN250T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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