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onsemi NCP707AMX285TCG
- Part No.:
- NCP707AMX285TCG
- Manufacturer:
- onsemi
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
NCP707AMX285TCG.pdf
- Description:
- IC REG LINEAR 2.85V 200MA 4XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:138,000
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Product details
Overview
NCP707AMX285TCG from onsemi is a 200 mA low-dropout (LDO) regulator with fixed 2.85 V output, ultra-low 25 µA quiescent current, 22 µVRMS output noise (100 Hz–100 kHz), and 114 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 capacitor - ideal for battery-powered portable electronics requiring precision, low-noise power.
For engineers reviewing the NCP707AMX285TCG 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, ±2% output accuracy over load/line/temperature, and compatibility with space-constrained, noise-sensitive designs such as GPS modules and Bluetooth handsets.
Technical Context
The NCP707AMX285TCG employs a PMOS pass transistor architecture enabling reverse-current blocking and low dropout across its 1.8 V to 5.5 V input range. Its adaptive ground current circuitry dynamically reduces IQ to 25 µA at no-load while maintaining regulation, and the integrated EN logic includes built-in 56 mV hysteresis and deglitching to prevent noise-induced toggling.
It integrates active output discharge (enabled only in "A" and "C" suffix variants), delivering 1.2 kΩ pull-down resistance when disabled - critical for fast VOUT ramp-down in systems with multiple power domains. The device achieves 70 dB PSRR at 1 kHz and maintains stability with output capacitors as low as 100 nF (1 µF recommended), leveraging internal compensation optimized for ceramic capacitors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.85 V ±2% - ensures precise rail generation for 2.85 V logic or analog circuits without external feedback. |
| Max Output Current | 200 mA continuous - supports moderate-power peripherals like RF transceivers or sensor interfaces. |
| Quiescent Current | 25 µA typ. at no-load - extends battery life in always-on portable devices (e.g., wearables, remote sensors). |
| Dropout Voltage | 114 mV typ. at 200 mA - enables operation down to VIN = 2.964 V, maximizing usable battery voltage range. |
| Output Noise | 22 µVRMS (100 Hz–100 kHz) - meets stringent requirements for ADC reference supplies and RF LNA biasing. |
| 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. |
| Thermal Shutdown | 160 °C activation with 20 °C hysteresis - protects against sustained overload or poor PCB thermal design. |
Pinout & Package
Package: XDFN-4 (1.0 mm × 1.0 mm, 0.4 mm height), case 711AJ, with exposed thermal pad (EPAD) connected to GND for enhanced heat dissipation. Thermal resistance RJA = 250 °C/W on 2 oz FR4 with 100 mm² copper area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Regulated output | Delivers stable 2.85 V; requires ≥1 µF ceramic capacitor to GND for stability and transient response. |
| 2 - GND | Power ground | Reference return for IN, OUT, and EN; EPAD must be soldered directly to this node for thermal and electrical integrity. |
| 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 to GND. |
| 4 - IN | Input supply | Accepts 1.8–5.5 V; requires ≥1 µF ceramic capacitor to GND near pin to minimize input impedance and EMI. |
Key Features
| Feature | Design Value |
|---|---|
| Active Output Discharge | 1.2 kΩ internal pull-down on OUT when EN is low - ensures rapid, controlled discharge of downstream capacitance to prevent floating rails or latch-up. |
| Ultra-Low IQ Operation | 25 µA typical quiescent current at zero load - enables multi-year battery life in IoT endpoint devices with infrequent wake cycles. |
| Low-Noise Regulation | 22 µVRMS broadband noise - eliminates need for additional LC filtering in sensitive analog signal chains (e.g., audio codecs, precision ADCs). |
| Stable with Minimal Capacitance | Guaranteed stability with 1 µF X7R/X5R ceramic output capacitor - reduces BOM count and PCB area vs. traditional LDOs requiring >10 µF tantalum. |
| Robust Protection Suite | Integrated thermal shutdown, output current limit (379 mA typ.), and short-circuit protection - eliminates need for external fault management circuitry. |
| Wide Input Range | 1.8 V to 5.5 V operation - supports single-cell Li-ion (2.7–4.2 V), LiFePO₄ (2.0–3.6 V), and dual-cell alkaline (2.0–3.2 V) battery inputs. |
Applications
| GPS Module Power Supply | Bluetooth Audio Transceiver Bias |
|---|---|
Use Scenario: Powers GNSS receiver ICs (e.g., u-blox NEO-M8, Quectel L86) in handheld navigation devices where battery runtime and position accuracy are critical. IC Role / Device Role / Timing Role: Provides clean, low-noise 2.85 V supply to RF front-end and baseband processor, minimizing phase noise and timing jitter in GPS correlation engines. Use Value: 22 µVRMS noise and 70 dB PSRR at 1 kHz reduce C/N₀ degradation, improving time-to-first-fix (TTFF) and positional accuracy under weak-signal conditions. | Use Scenario: Supplies 2.85 V bias to Bluetooth 5.0 audio SoCs (e.g., Nordic nRF52833, Dialog DA14585) in wireless earbuds and hearing aids. IC Role / Device Role / Timing Role: Delivers regulated voltage to digital core and 2.4 GHz RF synthesizer, with EN pin synchronized to audio playback state for dynamic power gating. Use Value: 25 µA quiescent current extends standby time between audio sessions; active discharge clears residual charge during pause-to-play transitions, preventing pop/click artifacts. |
| Portable Medical Sensor Node | Smart Wearable Display Backlight Driver |
Use Scenario: Powers optical heart-rate monitor (PPG) analog front-end in fitness trackers, operating continuously from coin-cell batteries. IC Role / Device Role / Timing Role: Supplies ultra-stable 2.85 V to transimpedance amplifier and ADC reference, rejecting noise from nearby MCU clock domains. Use Value: ±2% output accuracy over −40°C to +125°C ensures consistent LED drive current and photodiode signal gain across environmental conditions. | Use Scenario: Provides 2.85 V gate bias for OLED display driver ICs (e.g., SSD1306, RA8875) in smartwatches with always-on display mode. IC Role / Device Role / Timing Role: Regulates voltage to display controller logic and interface I/O, with EN pin controlled by system PMIC to enable/disable display subsystem during sleep. Use Value: 114 mV dropout allows operation down to 2.964 V input - extending usable voltage range of 3.0 V nominal Li-ion cells by ~15 minutes per charge cycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-285E/TT | 300 mA rated, 1.6 µA IQ, no active discharge, SOT-23-5 package (2.9×1.6 mm) | Larger footprint, lower IQ but no discharge - suitable for cost-sensitive, non-rapid-shutdown applications | Select when board space permits larger package and active discharge is unnecessary. |
| TLC7603QDBVRQ1 | 250 mA rated, 35 µA IQ, 25 µVRMS noise, automotive-grade (−40°C to +125°C), same X2SON-4 package | AEC-Q100 qualified, higher max input (6.5 V), identical 2.85 V output and discharge capability | Select for automotive infotainment or ADAS modules requiring qualification and extended VIN range. |
Compared with MCP1700T-285E/TT and TLC7603QDBVRQ1, the NCP707AMX285TCG offers the smallest footprint (1.0×1.0 mm), lowest dropout at full load (114 mV), and guaranteed active discharge - making it optimal for ultra-compact, fast-turnoff consumer portable designs where every mm² and µA matters.
Availability
NCP707AMX285TCG is available at Aetrix Electronics and suitable for GPS receivers, Bluetooth audio transceivers, and portable medical sensors requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for NCP707AMX285TCG 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 supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCP707 series is designed for ultra-low-power, noise-sensitive portable electronics - emphasizing minimal quiescent current, small form factor, and robust protection in space-constrained battery-operated systems.
FAQ
What is the maximum input voltage rating for the NCP707AMX285TCG?
The NCP707AMX285TCG has an absolute maximum input voltage of 6 V. However, its recommended operating input voltage range is 1.8 V to 5.5 V. Exceeding 6 V may cause permanent damage. For reliable long-term operation, VIN should remain within the specified 1.8–5.5 V range, especially when paired with 2.85 V output - ensuring sufficient headroom for dropout and line regulation.
Does the NCP707AMX285TCG require an external resistor network to set output voltage?
No, the NCP707AMX285TCG is a fixed-output LDO with factory-trimmed 2.85 V regulation - no external resistors are required. Its feedback network is internal and laser-trimmed during production to achieve ±2% accuracy over load, line, and temperature. This simplifies design, reduces BOM count, and improves reliability compared to adjustable LDOs.
How does the active output discharge function operate in the NCP707AMX285TCG?
When the EN pin voltage falls below 0.4 V, the NCP707AMX285TCG disables regulation and turns on an internal 1.2 kΩ NMOS discharge transistor between OUT and GND. This actively pulls the output voltage to ground, discharging downstream capacitance faster than passive leakage. The feature is exclusive to "A" and "C" suffix variants - confirmed for NCP707AMX285TCG in the datasheet's PIN FUNCTION DESCRIPTION and APPLICATIONS INFORMATION sections.
Can the NCP707AMX285TCG be used with a 100 nF output capacitor?
Yes - the NCP707AMX285TCG is stable with output capacitance as low as 100 nF, though 1 µF is recommended for optimal transient response and PSRR. The 100 nF minimum accounts for capacitance loss due to DC bias, temperature, and tolerance; using 1 µF X7R/X5R ceramic capacitors ensures margin across all conditions and aligns with the datasheet's stability validation and Figure 42 (ESR vs. stability).
What is the thermal performance of the NCP707AMX285TCG in its XDFN-4 package?
The NCP707AMX285TCG in XDFN-4 (case 711AJ) has a junction-to-air thermal resistance (RJA) of 250 °C/W on a 2 oz FR4 PCB with 100 mm² copper area. At 200 mA load and 114 mV dropout, power dissipation is ~22.8 mW - resulting in <6 °C junction rise above ambient. For higher loads or elevated ambient, connecting the EPAD to a large GND plane is essential to maintain TJ ≤ 125 °C.
NCP707AMX285TCG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 4-XDFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.85V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.17V @ 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)
NCP707AMX285TCG FAQ
1.How can I place an order for NCP707AMX285TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP707AMX285TCG 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 NCP707AMX285TCG reliable?
The price and inventory of NCP707AMX285TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP707AMX285TCG is usually 5 days.
3.What payment methods are accepted for NCP707AMX285TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP707AMX285TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP707AMX285TCG?
NCP707AMX285TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP707AMX285TCG 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 NCP707AMX285TCG?
For technical support, including NCP707AMX285TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP707AMX285TCG requirements.
6.How does Aetrix verify that NCP707AMX285TCG is sourced from the original manufacturer or authorized distributors?
All NCP707AMX285TCG 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 NCP707AMX285TCG meets industry standards.
7.What is the process for return or replacement of NCP707AMX285TCG?
All NCP707AMX285TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP707AMX285TCG, 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 NCP707AMX285TCG part is unused and in its original packaging.
Return procedure for NCP707AMX285TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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