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onsemi NCP707CMX320TCG
- Part No.:
- NCP707CMX320TCG
- Manufacturer:
- onsemi
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
NCP707CMX320TCG.pdf
- Description:
- IC REG LINEAR 3.2V 200MA 4XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,870
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Product details
Overview
NCP707CMX320TCG from onsemi is a 200 mA low-dropout (LDO) voltage regulator with fixed 3.2 V output, optimized for battery-powered portable electronics requiring ultra-low quiescent current (25 µA typ.), low noise (22 µVRMS), and minimal dropout (105 mV typ. at 200 mA). It integrates active output discharge (120 Ω), thermal shutdown, and current limiting - enabling stable power delivery in space-constrained, noise-sensitive applications such as Bluetooth headsets and portable medical sensors.
For engineers reviewing the NCP707CMX320TCG datasheet, pinout, applications, or equivalent options, key selection criteria include its XDFN-4 1.0×1.0 mm package, EN-controlled enable/disable with hysteresis, compatibility with 1 µF ceramic output capacitors, and guaranteed ±2% output accuracy across −40°C to +125°C.
Technical Context
The NCP707CMX320TCG employs a PMOS pass transistor architecture with adaptive ground current control to maintain 25 µA quiescent current at no-load while delivering up to 200 mA output. Its internal soft-start prevents inrush overshoot, and the EN pin controls both regulation and active discharge via a dedicated 120 Ω pull-down path when disabled.
Designed for input voltages from 1.8 V to 5.5 V, it achieves 70 dB PSRR at 1 kHz and maintains stability with output capacitors as low as 100 nF (1 µF recommended). The device features built-in protection including thermal shutdown (160°C trip, 20°C hysteresis) and current limit (379 mA typ.) - ensuring robust operation under overload and short-circuit conditions without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.2 V ±2% over load/line/temperature - ensures precise rail generation for 3.3 V–tolerant logic without external feedback. |
| Quiescent Current | 25 µA typical at no-load - extends battery life in always-on sensor nodes and standby modes. |
| Dropout Voltage | 105 mV typical at 200 mA - enables regulation from 3.3 V input down to 3.2 V output, maximizing usable battery range. |
| Output Noise | 22 µVRMS (100 Hz–100 kHz) - supports clean analog/RF circuitry (e.g., ADCs, RF transceivers) without additional filtering. |
| 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 with 56 mV hysteresis - ensures noise-immune digital control from 1.8 V or 3.3 V GPIOs. |
| Active Discharge | 120 Ω internal pull-down on OUT when EN < 0.4 V - rapidly discharges output capacitance for safe sequencing in multi-rail systems. |
Pinout & Package
XDFN-4 1.0×1.0 mm package with exposed thermal pad (EPAD); requires soldering EPAD directly to GND plane for optimal thermal performance (RJA = 250°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Regulated output voltage | Delivers 3.2 V; requires ≥1 µF ceramic capacitor to GND for stability; connects to load and feedback path. |
| 2 - GND | Power supply ground | Reference node for regulation and protection circuits; EPAD must be connected to this pin via PCB copper pour. |
| 3 - EN | Enable control input | Logic-level input: >0.9 V enables regulation; <0.4 V disables output and activates 120 Ω discharge path. |
| 4 - IN | Input voltage supply | Accepts 1.8–5.5 V; requires ≥1 µF ceramic capacitor to GND close to pin for transient immunity. |
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 - critical for multi-year battery life. |
| Active output discharge | 120 Ω internal discharge path activated during shutdown - eliminates hold-up voltage without external MOSFET or resistor. |
| Stability with minimal capacitance | Guaranteed stable with 1 µF ceramic output capacitor - reduces BOM count and PCB area vs. legacy LDOs requiring 10+ µF. |
| High-accuracy output | ±2% tolerance over full temperature/load range - avoids need for post-production calibration in precision analog subsystems. |
| Integrated protection suite | Thermal shutdown (160°C), current limit (379 mA), and reverse-current blocking - enables single-chip power solution without discrete protection. |
Applications
| Wearable Health Sensors | Bluetooth Audio Accessories |
|---|---|
|
Use Scenario: Continuous ECG/PPG signal acquisition in compact ear-worn devices powered by coin-cell batteries. IC Role / Device Role / Timing Role: Primary 3.2 V analog supply for low-noise op-amps, ADCs, and RF front-end biasing. Use Value: 22 µVRMS noise and ±2% accuracy preserve signal integrity; 25 µA IQ enables >3-year battery life in always-on mode. |
Use Scenario: Power management in true wireless stereo (TWS) earbuds with fast charge/discharge cycles and tight thermal constraints. IC Role / Device Role / Timing Role: Regulated 3.2 V rail for Bluetooth SoC I/O and audio codec, controlled via host MCU's GPIO. Use Value: Active 120 Ω discharge ensures rapid rail collapse between playback sessions, preventing leakage into disabled blocks. |
| Industrial IoT Edge Nodes | GPS/GLONASS Receivers |
|
Use Scenario: Remote environmental monitoring node operating on Li-SOCl₂ primary cells in −40°C to +85°C ambient. IC Role / Device Role / Timing Role: Stable 3.2 V supply for ultra-low-power microcontroller and sub-GHz RF transceiver. Use Value: 105 mV dropout allows operation down to 3.3 V battery voltage; ±2% accuracy ensures reliable brown-out detection. |
Use Scenario: High-precision GNSS module requiring clean, low-noise power for RF front-end and correlator circuits. IC Role / Device Role / Timing Role: Dedicated LDO for GPS baseband IC and crystal oscillator, decoupled from noisy digital supplies. Use Value: 70 dB PSRR at 1 kHz rejects switching noise from adjacent DC-DC converters; 1.0×1.0 mm footprint saves space in miniaturized modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6210B322MR-G | 3.2 V fixed, 200 mA, 35 µA IQ, no active discharge, SOT-25 package (2.9×2.8 mm) | Lacks active discharge and smaller thermal performance margin; suitable where board space permits larger package. | Select when cost sensitivity outweighs discharge requirement and PCB layout allows SOT-25 footprint. |
| Micrel MIC5205-3.2YM5-TR | 3.2 V fixed, 150 mA, 80 µA IQ, 350 mV dropout at 150 mA, SOT-23-5 package | Lower current rating and higher dropout limit use in high-efficiency battery systems; no active discharge. | Choose only if load current remains ≤150 mA and 350 mV dropout is acceptable in system voltage budget. |
Compared with XC6210B322MR-G and MIC5205-3.2YM5-TR, the NCP707CMX320TCG delivers superior efficiency (105 mV dropout), lower noise (22 µVRMS), and integrated active discharge - making it the preferred choice for space-constrained, battery-life-critical designs requiring fast, safe power sequencing.
Availability
NCP707CMX320TCG is available at Aetrix Electronics and suitable for wearable health sensors, Bluetooth audio accessories, industrial IoT edge nodes, and GPS/GLONASS receivers requiring stable component supply with guaranteed long-term availability.
Supply support for NCP707CMX320TCG 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 (Nasdaq: ON) is a global semiconductor leader delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCP707 series targets ultra-low-power portable electronics, combining micropower operation, miniature packaging, and integrated protection to simplify power design in battery-constrained systems.
FAQ
What is the maximum input voltage rating for the NCP707CMX320TCG?
The NCP707CMX320TCG has an absolute maximum input voltage of 6 V, but its recommended operating input voltage range is 1.8 V to 5.5 V. Exceeding 5.5 V may compromise reliability or trigger overvoltage stress not covered by specifications. For continuous operation, VIN should remain within the 1.8–5.5 V window to ensure specified performance including ±2% output accuracy and 25 µA quiescent current.
Does the NCP707CMX320TCG require an external capacitor on the EN pin for noise immunity?
No, the NCP707CMX320TCG includes built-in 56 mV hysteresis and deglitch timing in its EN input circuitry, eliminating the need for external RC filtering. The internal 180 nA pull-down current source also ensures default disable state when EN is left floating. This integrated design simplifies layout and improves robustness against GPIO noise in battery-powered systems using the NCP707CMX320TCG.
Can the NCP707CMX320TCG operate stably with a 470 nF output capacitor?
Yes - the NCP707CMX320TCG is specified to remain stable with output capacitance as low as 100 nF, so a 470 nF ceramic capacitor meets the minimum requirement. However, the datasheet recommends ≥1 µF for full safety margin against capacitance loss due to DC bias, temperature drift, and initial tolerance. Using 470 nF may reduce phase margin marginally but remains within guaranteed stable operation per onsemi characterization.
What is the purpose of the exposed pad (EPAD) on the NCP707CMX320TCG package?
The EPAD on the NCP707CMX320TCG is a thermal and electrical connection that must be soldered directly to the PCB's GND plane. It lowers thermal resistance (RJA = 250°C/W with 100 mm² copper) and provides a low-impedance return path for internal protection circuitry. Leaving the EPAD unconnected degrades thermal performance and may cause premature thermal shutdown under 200 mA load - proper EPAD grounding is mandatory for reliable operation of the NCP707CMX320TCG.
How does the active output discharge function behave during shutdown of the NCP707CMX320TCG?
When the EN pin voltage drops below 0.4 V, the NCP707CMX320TCG disables regulation and activates an internal 120 Ω NMOS discharge path between OUT and GND. This pulls the output voltage to near-zero within microseconds - critical for safe power sequencing in multi-rail systems. Discharge current is limited by the 120 Ω resistance and output capacitance value; no external components are required to implement this feature in the NCP707CMX320TCG.
NCP707CMX320TCG 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):
- 3.2V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.155V @ 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)
NCP707CMX320TCG FAQ
1.How can I place an order for NCP707CMX320TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP707CMX320TCG 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 NCP707CMX320TCG reliable?
The price and inventory of NCP707CMX320TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP707CMX320TCG is usually 5 days.
3.What payment methods are accepted for NCP707CMX320TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP707CMX320TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP707CMX320TCG?
NCP707CMX320TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP707CMX320TCG 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 NCP707CMX320TCG?
For technical support, including NCP707CMX320TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP707CMX320TCG requirements.
6.How does Aetrix verify that NCP707CMX320TCG is sourced from the original manufacturer or authorized distributors?
All NCP707CMX320TCG 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 NCP707CMX320TCG meets industry standards.
7.What is the process for return or replacement of NCP707CMX320TCG?
All NCP707CMX320TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP707CMX320TCG, 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 NCP707CMX320TCG part is unused and in its original packaging.
Return procedure for NCP707CMX320TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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