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onsemi NCP707AMX250TCG
- Part No.:
- NCP707AMX250TCG
- Manufacturer:
- onsemi
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
NCP707AMX250TCG.pdf
- Description:
- IC REG LINEAR 2.5V 200MA 4XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,534
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Product details
Overview
NCP707AMX250TCG from onsemi is a 200 mA low-dropout (LDO) voltage regulator with fixed 2.5 V output, ultra-low 25 µA quiescent current, 22 µVRMS output noise (100 Hz–100 kHz), and 100 mV typical dropout at 200 mA. It features active output discharge (1.2 kΩ), thermal shutdown, current limiting, and stable operation with only 1 µF ceramic output capacitance - ideal for battery-powered portable electronics requiring high PSRR and minimal power loss.
For engineers reviewing the NCP707AMX250TCG datasheet, pinout, applications, or equivalent options, key selection criteria include its 2.5 V fixed output accuracy (±2%), 70 dB PSRR at 1 kHz, XDFN-4 1.0×1.0 mm package with exposed pad, and EN-controlled enable/disable with active discharge - all critical for space-constrained, noise-sensitive, low-power embedded systems.
Technical Context
The NCP707AMX250TCG integrates a PMOS pass transistor with adaptive ground current control to maintain 25 µA IQ at no-load while delivering up to 200 mA. Its internal soft-start prevents output overshoot during turn-on, and the EN pin provides logic-level control with built-in hysteresis (56 mV) and deglitching to reject noise-induced toggling.
It employs a precision voltage reference and error amplifier to achieve ±2% output accuracy across load (0–200 mA), line (VIN = 2.5 V + 0.5 V to 5.5 V), and temperature (−40°C to +125°C). The active output discharge function - present only in "A" and "C" suffix variants - pulls VOUT to GND via a 1.2 kΩ internal resistor when EN < 0.4 V, ensuring rapid discharge of downstream capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5 V ±2% over full load/line/temperature range - ensures stable rail for sensitive analog or RF circuitry without external feedback. |
| Quiescent Current | Typ. 25 µA at no-load - enables multi-year battery life in always-on IoT sensors and wearables. |
| Dropout Voltage | 100 mV typical at 200 mA - allows operation from 2.6 V input when regulating 2.5 V, maximizing usable battery voltage range. |
| Output Noise | 22 µVRMS (100 Hz–100 kHz) - meets stringent requirements for ADC references, PLLs, and audio codecs. |
| PSRR | 70 dB at 1 kHz - suppresses switching noise from upstream DC/DC converters feeding the LDO input. |
| 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. |
| Active Discharge | 1.2 kΩ internal pull-down when disabled - discharges 10 µF load in <12 ms, preventing latch-up in multi-rail systems. |
Pinout & Package
XDFN-4 1.0 mm × 1.0 mm package with exposed thermal pad (EPAD), optimized for minimal PCB area and efficient heat dissipation on 2 oz copper planes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: OUT | Regulated output | Delivers stable 2.5 V; requires ≥1 µF ceramic capacitor to GND for stability and transient response. |
| 2: GND | Power ground | Reference node for regulation and thermal path; EPAD must be soldered directly to this pin's copper plane. |
| 3: EN | Enable control input | Logic-high (>0.9 V) enables regulation; logic-low (<0.4 V) disables output and activates 1.2 kΩ discharge path. |
| 4: IN | Input supply | Accepts 1.8–5.5 V; requires ≥1 µF ceramic capacitor close to pin to suppress input ripple and transients. |
| EPAD | Thermal & electrical ground | Must be connected to GND plane; critical for thermal performance (RJA = 250°C/W) and EMI reduction. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ with dynamic adjustment | Maintains 25 µA quiescent current at zero load while scaling ground current only as needed under load - extends battery runtime without sacrificing transient response. |
| Active output discharge | 1.2 kΩ internal discharge path activated on disable - eliminates need for external bleed resistors and ensures safe power sequencing in multi-voltage systems. |
| Stable with 1 µF ceramic output cap | Eliminates requirement for minimum ESR or large bulk capacitors - reduces BOM count and board area while supporting fast load transients. |
| High PSRR and low noise | 70 dB rejection at 1 kHz and 22 µVRMS noise enable clean power delivery to noise-critical circuits like RF front-ends and precision data converters. |
| Full protection suite | Integrated thermal shutdown (160°C trip), current limit (~379 mA), and short-circuit protection ensure robust operation in uncontrolled environments. |
Applications
| Portable Medical Sensors | Bluetooth Low Energy Modules |
|---|---|
Use Scenario: Wearable ECG patch monitoring heart rate continuously for 7+ days on a single coin-cell battery. IC Role / Device Role / Timing Role: Provides ultra-low-noise, regulated 2.5 V supply to analog front-end (AFE) and 16-bit ADC, minimizing quantization noise and baseline drift. Use Value: 25 µA quiescent current enables >2000 hours of standby; 22 µVRMS noise preserves signal integrity for sub-microvolt biopotential measurements. | Use Scenario: Compact BLE beacon transmitting sensor data every 500 ms using a CR2032 battery. IC Role / Device Role / Timing Role: Powers the BLE SoC's RF and digital core with tight 2.5 V regulation during burst transmit (200 mA peak) and deep-sleep (25 µA). Use Value: 100 mV dropout allows operation down to 2.6 V input, extracting >15% more energy from the battery; active discharge prevents VOUT float during sleep transitions. |
| GPS/GNSS Receivers | Industrial IoT Edge Nodes |
Use Scenario: Miniature GPS module in asset tracker requiring cold-start acquisition within 30 seconds under weak-signal conditions. IC Role / Device Role / Timing Role: Supplies low-noise 2.5 V to GNSS RF frontend and correlator ASIC, rejecting switching noise from host MCU's DC/DC converter. Use Value: 70 dB PSRR at 1 kHz attenuates 1 MHz DC/DC ripple by >1000×, improving carrier-to-noise ratio (C/N₀) and reducing time-to-first-fix. | Use Scenario: Battery-backed industrial sensor node logging vibration and temperature in remote locations for 5+ years. IC Role / Device Role / Timing Role: Regulates 2.5 V for microcontroller, MEMS accelerometer, and EEPROM - enabling precise wake-up timing and reliable nonvolatile storage writes. Use Value: ±2% output accuracy ensures consistent ADC reference voltage across temperature; EN pin enables firmware-controlled power gating of peripherals to minimize system IQ. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6219B251MR-G | 200 mA, 2.5 V fixed, 25 µA IQ, but no active discharge; PSRR = 65 dB @ 1 kHz; requires 2.2 µF min. COUT. | Lacks active discharge - unsuitable where rapid VOUT decay is required for safe power sequencing. | Select when board space permits larger output capacitor and discharge is handled externally or not needed. |
| Micrel MIC5205-2.5YM5-TR | 150 mA, 2.5 V fixed, 100 µA IQ, no active discharge; dropout = 250 mV @ 150 mA; PSRR = 60 dB @ 1 kHz. | Lower current rating and higher dropout limit use in high-efficiency, high-current portable designs. | Choose only for cost-sensitive, lower-current applications where 25 µA IQ and 100 mV dropout are not mandatory. |
Compared with XC6219B251MR-G and MIC5205-2.5YM5-TR, the NCP707AMX250TCG delivers superior efficiency (100 mV vs. ≥250 mV dropout), integrated active discharge for safe sequencing, and higher PSRR - making it optimal for next-generation ultra-low-power, multi-rail portable systems.
Availability
NCP707AMX250TCG is available at Aetrix Electronics and suitable for portable medical sensors, Bluetooth Low Energy modules, GPS/GNSS receivers, and industrial IoT edge nodes requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for NCP707AMX250TCG 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 is a global semiconductor leader delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCP707 series is designed specifically for ultra-low-power, noise-sensitive portable electronics - emphasizing minimal quiescent current, high PSRR, small footprint, and robust protection in space-constrained battery-operated devices.
FAQ
What is the output voltage tolerance of the NCP707AMX250TCG over temperature and load?
The NCP707AMX250TCG maintains ±2% output voltage accuracy across −40°C to +125°C junction temperature, 0–200 mA load, and input voltage from (2.5 V + 0.5 V) to 5.5 V. This is verified per Electrical Characteristics table on page 3 of the datasheet, ensuring reliable 2.5 V regulation in demanding environmental conditions without external trimming.
Does the NCP707AMX250TCG require an external capacitor on the EN pin for noise immunity?
No, the NCP707AMX250TCG includes built-in 56 mV hysteresis and deglitching in the EN input circuitry, eliminating the need for external RC filtering. This design prevents false toggling due to noise on the enable line while maintaining compatibility with standard GPIO drivers - confirmed in the Applications Information section (page 16).
Can the NCP707AMX250TCG operate with a 1.8 V input supply?
No - the NCP707AMX250TCG requires a minimum input voltage of 1.8 V, but to regulate 2.5 V output, VIN must be ≥ VOUT + dropout. With 100 mV typical dropout, the minimum functional input is 2.6 V. At 1.8 V input, the device enters dropout and cannot sustain 2.5 V output, as specified in the Absolute Maximum Ratings and Electrical Characteristics tables.
What is the maximum output current capability of the NCP707AMX250TCG before current limiting engages?
The NCP707AMX250TCG limits output current to typ. 379 mA when VOUT drops 100 mV below nominal (i.e., to 2.4 V), and to typ. 390 mA under hard short-circuit (VOUT = 0 V). These values are characterized over temperature and documented in Figure 28 and the Electrical Characteristics table (page 3), ensuring predictable fault behavior without external current-sense components.
Is the exposed pad (EPAD) of the NCP707AMX250TCG electrically connected to GND?
Yes - the EPAD of the NCP707AMX250TCG is internally connected to the GND pin and must be soldered to a dedicated GND copper plane on the PCB. This connection serves both thermal management (reducing RJA to 250°C/W) and electrical grounding, as explicitly stated in the Pin Function Description (page 2) and Thermal Characteristics table (page 3).
NCP707AMX250TCG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 4-XDFN Exposed Pad
- 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):
- 0.225V @ 200mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 35 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-XDFN (1x1)
NCP707AMX250TCG FAQ
1.How can I place an order for NCP707AMX250TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP707AMX250TCG 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 NCP707AMX250TCG reliable?
The price and inventory of NCP707AMX250TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP707AMX250TCG is usually 5 days.
3.What payment methods are accepted for NCP707AMX250TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP707AMX250TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP707AMX250TCG?
NCP707AMX250TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP707AMX250TCG 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 NCP707AMX250TCG?
For technical support, including NCP707AMX250TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP707AMX250TCG requirements.
6.How does Aetrix verify that NCP707AMX250TCG is sourced from the original manufacturer or authorized distributors?
All NCP707AMX250TCG 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 NCP707AMX250TCG meets industry standards.
7.What is the process for return or replacement of NCP707AMX250TCG?
All NCP707AMX250TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP707AMX250TCG, 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 NCP707AMX250TCG part is unused and in its original packaging.
Return procedure for NCP707AMX250TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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