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onsemi NCP707AMX280TCG
- Part No.:
- NCP707AMX280TCG
- Manufacturer:
- onsemi
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
NCP707AMX280TCG.pdf
- Description:
- IC REG LINEAR 2.8V 200MA 4XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,875
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Product details
Overview
NCP707AMX280TCG from onsemi is a 200 mA low-dropout (LDO) voltage regulator with fixed 2.8 V output, optimized for battery-powered portable electronics. It delivers ±2% output accuracy across load/line/temperature, features 100 mV typical dropout at 200 mA, 22 µVRMS output noise (100 Hz–100 kHz), and ultra-low 25 µA quiescent current at no-load - enabling extended runtime in space-constrained, noise-sensitive applications like GPS modules and Bluetooth handsets.
For engineers reviewing the NCP707AMX280TCG datasheet, pinout, applications, or equivalent options, key selection criteria include its XDFN-4 1.0×1.0 mm package, active output discharge (RDIS = 1.2 kΩ), EN pin logic control (0.4 V low threshold / 0.9 V high threshold), thermal shutdown (160°C), and stability with only 1 µF ceramic output capacitor.
Technical Context
The NCP707AMX280TCG employs a PMOS pass transistor architecture with adaptive ground current control to maintain ultra-low IQ across input voltage (1.8–5.5 V) and temperature (−40°C to +125°C). Its internal soft-start prevents output overshoot during enable, while integrated current limiting (typ. 379 mA) and thermal shutdown ensure robust operation under overload or fault conditions.
It supports active output discharge upon disable - a feature exclusive to "A" and "C" suffix variants - pulling VOUT to GND via a 1.2 kΩ internal resistor. The device achieves 70 dB PSRR at 1 kHz and maintains regulation stability with output capacitors as small as 100 nF (ESR < 700 mΩ), making it suitable for compact, high-frequency-noise-immune power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8 V ±2% over −40°C to +125°C, load 0–200 mA, line 3.3–5.5 V - ensures stable core/sensor rail without external feedback. |
| Dropout Voltage | 118 mV typical at 200 mA - enables operation from single-cell Li-ion (3.0 V min) or 3.3 V system rails with margin. |
| Quiescent Current | 25 µA typical at no-load - extends battery life in always-on sensor nodes and standby modes. |
| Output Noise | 22 µVRMS (100 Hz–100 kHz) - meets stringent noise requirements for RF receivers, ADC references, 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 on OUT when EN < 0.4 V - ensures rapid, controlled VOUT decay for sequencing-critical systems. |
Pinout & Package
XDFN-4 1.0 mm × 1.0 mm, 0.4 mm pitch, exposed thermal pad (EPAD) - designed for minimal PCB footprint and efficient heat dissipation on 2 oz copper planes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Regulated output voltage node | Connects to load; requires ≥1 µF ceramic capacitor to GND for stability; feeds downstream analog/digital circuitry. |
| 2 - GND | Power supply reference and return path | Must be tied directly to EPAD and large ground plane; critical for noise suppression, thermal performance, and PSRR. |
| 3 - EN | Logic-controlled enable input | Drives >0.9 V to enable regulator; <0.4 V to disable with active discharge; internal 180 nA pull-down ensures default-off state. |
| 4 - IN | Input voltage supply node | Accepts 1.8–5.5 V; requires ≥1 µF ceramic capacitor close to pin to suppress input ripple and transient spikes. |
| EPAD | Thermal and electrical ground connection | Must be soldered to solid GND copper area; reduces θJA to 250°C/W and prevents thermal shutdown under 200 mA load. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ | 25 µA at no-load - cuts standby power by >50% vs. standard 100 µA LDOs, extending shelf life of coin-cell devices. |
| Low-noise regulation | 22 µVRMS output noise - eliminates need for post-LDO filtering in precision analog signal chains. |
| Active output discharge | 1.2 kΩ internal discharge path - ensures VOUT decays within ~3 ms (τ = R×C = 1.2k×1µF), meeting strict power sequencing specs. |
| Stable with 1 µF ceramic COUT | No ESR requirement - simplifies BOM and layout; avoids costly tantalum or polymer capacitors. |
| Integrated protection | Current limit (379 mA typ), thermal shutdown (160°C), and reverse-current blocking - eliminates need for external fault management circuitry. |
Applications
| GPS Module Power Rail | Bluetooth Audio Transceiver Supply |
|---|---|
|
Use Scenario: Powers GNSS baseband IC and RF front-end in handheld navigation devices with intermittent satellite acquisition. IC Role / Device Role / Timing Role: Primary 2.8 V analog supply for low-noise LNA, crystal oscillator buffer, and ADC reference. Use Value: 22 µVRMS noise prevents phase jitter in 1.575 GHz LO synthesis; 25 µA IQ extends battery life during cold-start search mode. |
Use Scenario: Supplies 2.8 V to Bluetooth 5.0 SoC RF section and audio DAC in wireless earbuds. IC Role / Device Role / Timing Role: Clean, sequenced power domain isolated from noisy digital core and charging circuitry. Use Value: Active discharge ensures fast VOUT ramp-down between audio playback and sleep states, preventing pop/click artifacts. |
| Portable Medical Sensor Node | Smart Wearable Display Backlight Driver Bias |
|
Use Scenario: Powers optical heart-rate monitor (PPG) analog front-end in fitness trackers. IC Role / Device Role / Timing Role: Low-noise bias for transimpedance amplifier and LED driver current source. Use Value: ±2% accuracy maintains consistent LED intensity and photodiode response across temperature; 100 mV dropout enables use with aging batteries. |
Use Scenario: Provides stable 2.8 V bias to white OLED display driver IC in smartwatches. IC Role / Device Role / Timing Role: Precision voltage reference for current mirror-based LED current setting. Use Value: 70 dB PSRR rejects noise from display refresh switching; 1.0×1.0 mm XDFN fits tight bezel space behind curved glass. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2802E/TT | 250 mA, 2.8 V fixed, 1.6 µA IQ, no active discharge, SOT-23-5 package | Lacks EN-controlled discharge; higher dropout (330 mV @ 250 mA); larger footprint | Select when ultra-low IQ dominates over sequencing needs and board space allows SOT-23. |
| TPL7407LPGF | 200 mA, 2.8 V fixed, 30 µA IQ, active discharge (1.2 kΩ), 1.5×1.5 mm WSON-6 package | Same discharge function but larger package; lower PSRR (60 dB @ 1 kHz); no thermal shutdown | Choose if WSON-6 is already standardized in design; verify thermal margin without shutdown protection. |
Compared with MCP1700T-2802E/TT and TPL7407LPGF, the NCP707AMX280TCG uniquely combines ultra-low noise (22 µVRMS), guaranteed thermal shutdown, and XDFN-4's 1.0 mm² footprint - making it optimal for miniaturized, safety-critical, noise-sensitive portable systems where both performance and reliability are non-negotiable.
Availability
NCP707AMX280TCG is available at Aetrix Electronics and suitable for GPS modules, Bluetooth audio transceivers, portable medical sensors, and smart wearable displays requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for NCP707AMX280TCG 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 is part of onsemi's precision analog portfolio, engineered specifically for ultra-low-power, low-noise portable electronics - emphasizing battery longevity, signal integrity, and minimal PCB real estate.
FAQ
What is the maximum input voltage rating for the NCP707AMX280TCG?
The NCP707AMX280TCG has an absolute maximum input voltage of 6 V. Its recommended operating input range is 1.8 V to 5.5 V. Exceeding 6 V may cause permanent damage. For reliable operation at 5.5 V input, ensure junction temperature remains ≤125°C using adequate PCB copper area per Figure 68 in the datasheet.
Does the NCP707AMX280TCG require an external resistor to enable active output discharge?
No. The NCP707AMX280TCG integrates active output discharge functionality with a 1.2 kΩ internal pull-down resistor on the OUT pin - activated automatically when the EN pin voltage falls below 0.4 V. No external components are needed to achieve controlled VOUT decay.
Can the NCP707AMX280TCG operate stably with a 100 nF output capacitor?
Yes. The NCP707AMX280TCG is specified to remain stable with output capacitance as low as 100 nF (ceramic, X5R/X7R), though 1 µF is recommended for optimal transient response and PSRR. Stability is independent of ESR, eliminating the need for specialized low-ESR capacitors.
What is the thermal shutdown behavior of the NCP707AMX280TCG?
The NCP707AMX280TCG triggers thermal shutdown at approximately 160°C (typical) and remains disabled until junction temperature falls to ~140°C due to 20°C hysteresis. During shutdown, the pass transistor turns off and output is disconnected - protecting the device from catastrophic failure under sustained overload or poor heatsinking.
How does the EN pin behave when left floating on the NCP707AMX280TCG?
The EN pin includes an internal 180 nA pull-down current source, ensuring the NCP707AMX280TCG defaults to the disabled (shutdown) state when left unconnected. This eliminates risk of unintended power-up and supports safe "no-connect" configuration in designs where enable control is not required.
NCP707AMX280TCG 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):
- 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.175V @ 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)
NCP707AMX280TCG FAQ
1.How can I place an order for NCP707AMX280TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP707AMX280TCG 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 NCP707AMX280TCG reliable?
The price and inventory of NCP707AMX280TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP707AMX280TCG is usually 5 days.
3.What payment methods are accepted for NCP707AMX280TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP707AMX280TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP707AMX280TCG?
NCP707AMX280TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP707AMX280TCG 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 NCP707AMX280TCG?
For technical support, including NCP707AMX280TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP707AMX280TCG requirements.
6.How does Aetrix verify that NCP707AMX280TCG is sourced from the original manufacturer or authorized distributors?
All NCP707AMX280TCG 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 NCP707AMX280TCG meets industry standards.
7.What is the process for return or replacement of NCP707AMX280TCG?
All NCP707AMX280TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP707AMX280TCG, 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 NCP707AMX280TCG part is unused and in its original packaging.
Return procedure for NCP707AMX280TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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