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onsemi NCP707CMX285TCG
- Part No.:
- NCP707CMX285TCG
- Manufacturer:
- onsemi
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
NCP707CMX285TCG.pdf
- Description:
- IC REG LINEAR 2.85V 200MA 4XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,971
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Product details
Overview
NCP707CMX285TCG 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 - designed for noise-sensitive, space-constrained battery-powered systems such as GPS modules and portable medical devices.
For engineers reviewing the NCP707CMX285TCG datasheet, pinout, applications, or equivalent options, key selection criteria include its XDFN-4 1.0×1.0 mm package, active output discharge (120 Ω), ±2% output accuracy over load/line/temperature, and stability with only 1 µF ceramic output capacitor.
Technical Context
The NCP707CMX285TCG 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, and thermal shutdown (160°C) with 20°C hysteresis ensures robust operation under overload.
It features an enable input with 0.9 V turn-on threshold and 0.4 V turn-off threshold, plus active output discharge activated during shutdown - a function confirmed exclusive to "C" and "A" suffix variants per datasheet Section "PIN FUNCTION DESCRIPTION" and Figure 2 footnote. The device achieves 70 dB PSRR at 1 kHz and supports operation from 1.8 V to 5.5 V input.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.85 V ±2% over −40°C to +125°C, load 0–200 mA, line 3.35–5.5 V - enables direct replacement of 2.85 V rails without external feedback. |
| Dropout Voltage | 114 mV typical at 200 mA - allows regulation from 3.0 V input when powering 2.85 V logic, minimizing power loss in battery systems. |
| Quiescent Current | 25 µA typical at no-load - extends battery life in always-on sensor nodes and wearable standby modes. |
| Output Noise | 22 µVRMS (100 Hz–100 kHz) - meets stringent noise requirements for RF front-ends and precision ADC reference supplies. |
| PSRR | 70 dB at 1 kHz - suppresses switching noise from upstream DC-DC converters feeding the LDO input. |
| Active Discharge | 120 Ω discharge path (C-suffix confirmed) - rapidly discharges output capacitance upon disable, preventing latch-up in multi-rail sequencing. |
| Stability | Stable with ≥1 µF ceramic output capacitor (X5R/X7R), ESR < 700 mΩ - eliminates need for tantalum or electrolytic capacitors. |
Pinout & Package
XDFN-4 1.0×1.0 mm package (Case 711AJ) with exposed pad (EPAD) thermally connected to GND. Requires soldering EPAD to large PCB ground plane for thermal performance (RJA = 250°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Regulated output voltage node | Delivers stable 2.85 V; requires ≥1 µF ceramic capacitor to GND for stability; connects to load and feedback path. |
| 2 - GND | Power and reference ground | Common return for IN, OUT, EN; EPAD must be soldered directly to this node for thermal and electrical integrity. |
| 3 - EN | Logic-enable control input | Drives high (>0.9 V) to enable regulator; drives low (<0.4 V) to disable and activate 120 Ω output discharge. |
| 4 - IN | Input voltage supply node | Accepts 1.8–5.5 V; requires ≥1 µF ceramic capacitor to GND close to pin to suppress input ripple and transients. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 25 µA typical at zero load - reduces standby power in IoT edge nodes where battery replacement is impractical. |
| Low-noise regulation | 22 µVRMS output noise - avoids signal corruption in analog front-ends, GPS RF sections, and audio codec supplies. |
| Active output discharge | 120 Ω discharge path (C-suffix specific) - ensures rapid, controlled VOUT ramp-down during power sequencing or fault recovery. |
| High PSRR at 1 kHz | 70 dB rejection - maintains clean 2.85 V rail even when powered from noisy buck converter outputs. |
| Small-footprint packaging | XDFN-4 1.0×1.0 mm - saves >60% board area vs. SOT-23, critical for compact wearables and hearing aids. |
Applications
| GPS Module Power Supply | Wireless Sensor Node Core Rail |
|---|---|
|
Use Scenario: Powers GNSS baseband IC and RF frontend in handheld GPS receivers operating from single-cell Li-ion (3.0–4.2 V). IC Role / Device Role / Timing Role: Primary 2.85 V LDO supplying sensitive analog/RF circuitry; provides low-noise, fast transient response for satellite signal acquisition. Use Value: 22 µVRMS noise and 75 mV load transient deviation ensure minimal carrier phase error and faster TTFF (Time-To-First-Fix). |
Use Scenario: Supplies microcontroller core, BLE radio, and environmental sensors in battery-operated industrial wireless nodes. IC Role / Device Role / Timing Role: Always-on 2.85 V regulator enabling ultra-low-power sleep modes; EN pin synchronized with MCU wake events. Use Value: 25 µA IQ extends 10-year battery life in sealed deployments; active discharge prevents backfeed into disabled peripherals. |
| Portable Medical Pulse Oximeter | Smartphone Camera Module Bias |
|
Use Scenario: Powers photodiode amplifier, ADC, and optical driver in Class II medical-grade pulse oximeters. IC Role / Device Role / Timing Role: Precision 2.85 V analog supply rejecting switching noise from shared PMIC; supports FDA-required low-noise compliance. Use Value: ±2% accuracy and 22 µVRMS noise ensure sub-1% SpO₂ measurement repeatability across temperature and battery voltage range. |
Use Scenario: Provides clean 2.85 V bias to CMOS image sensor analog blocks and ISP cores in smartphone rear camera modules. IC Role / Device Role / Timing Role: Dedicated low-noise LDO decoupling sensor analog supply from noisy SoC domain; sequenced via EN with camera power-on. Use Value: 114 mV dropout enables use of partially depleted battery (≥3.0 V); 70 dB PSRR prevents digital switching artifacts in raw image data. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-285I/OT | 250 mA rating, 1.6 µA IQ, no active discharge, SOT-23-5 package | Lacks output discharge; larger footprint; lower IQ but higher dropout (285 mV @ 250 mA) | Choose for ultra-low-IQ battery monitoring circuits where discharge is unnecessary and board space permits SOT-23. |
| TLC7701QDCKR | 200 mA, 15 µA IQ, 1.2 V to 5.5 V input, no fixed 2.85 V option - requires external resistor network | Needs external feedback; no integrated active discharge; Q-grade automotive qualification | Choose for automotive infotainment subsystems requiring AEC-Q100 Grade 2 and adjustable output, not fixed 2.85 V. |
Compared with MCP1700T-285I/OT and TLC7701QDCKR, the NCP707CMX285TCG uniquely combines fixed 2.85 V output, 120 Ω active discharge, XDFN-4 size, and 22 µVRMS noise - making it optimal for miniaturized, noise-critical portable electronics where precise rail control and fast sequencing matter.
Availability
NCP707CMX285TCG is available at Aetrix Electronics and suitable for GPS receivers, portable medical instruments, and wireless sensor nodes requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for NCP707CMX285TCG 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-noise, ultra-low-IQ power management in portable and battery-constrained systems - emphasizing small size, high accuracy, and robust protection.
FAQ
What is the maximum input voltage rating for the NCP707CMX285TCG?
The NCP707CMX285TCG has an absolute maximum input voltage of 6 V. Continuous operation is specified from 1.8 V to 5.5 V. Exceeding 6 V may cause permanent damage per Absolute Maximum Ratings table on page 2 of the datasheet. For reliable 2.85 V output, VIN must remain ≥ VOUT + dropout (≥2.964 V typical at full load).
Does the NCP707CMX285TCG include active output discharge, and how does it behave?
Yes, the NCP707CMX285TCG includes active output discharge - confirmed by datasheet footnote on page 2 ("*Active output discharge function is present only in NCP707AMXyyyTCG and NCP707CMXyyyTCG devices") and Electrical Characteristics table (RDIS = 120 Ω for C-suffix). When EN < 0.4 V, a 120 Ω internal FET pulls OUT to GND, discharging external capacitance rapidly.
What output capacitor value and type are required for stability with the NCP707CMX285TCG?
The NCP707CMX285TCG is stable with a minimum 1.0 µF ceramic capacitor (X5R or X7R dielectric) on the OUT pin. The datasheet specifies no minimum ESR requirement but caps maximum ESR at 700 mΩ. Tantalum capacitors are explicitly discouraged due to high/temperature-variable ESR. 0402-size MLCCs are recommended for space-constrained layouts.
How accurate is the output voltage of the NCP707CMX285TCG across temperature and load?
The NCP707CMX285TCG maintains output voltage within ±2% over −40°C to +125°C junction temperature, 0–200 mA load, and input voltage from (VOUT + 0.5 V) to 5.5 V - per Electrical Characteristics table on page 3. Load regulation contributes ≤10 µV/mA, and line regulation is ≤400 µV/V, ensuring tight tolerance in real-world conditions.
Can the NCP707CMX285TCG be used without connecting the EN pin?
Yes - the EN pin has an internal pull-down current source (180 nA typical) that guarantees disable state when left floating. However, for guaranteed behavior in noisy environments, the datasheet recommends tying EN directly to IN if enable control is unused. This avoids unintended enable/disable toggling due to leakage or EMI.
NCP707CMX285TCG 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):
- 2.85V
- 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)
NCP707CMX285TCG FAQ
1.How can I place an order for NCP707CMX285TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP707CMX285TCG 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 NCP707CMX285TCG reliable?
The price and inventory of NCP707CMX285TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP707CMX285TCG is usually 5 days.
3.What payment methods are accepted for NCP707CMX285TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP707CMX285TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP707CMX285TCG?
NCP707CMX285TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP707CMX285TCG 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 NCP707CMX285TCG?
For technical support, including NCP707CMX285TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP707CMX285TCG requirements.
6.How does Aetrix verify that NCP707CMX285TCG is sourced from the original manufacturer or authorized distributors?
All NCP707CMX285TCG 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 NCP707CMX285TCG meets industry standards.
7.What is the process for return or replacement of NCP707CMX285TCG?
All NCP707CMX285TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP707CMX285TCG, 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 NCP707CMX285TCG part is unused and in its original packaging.
Return procedure for NCP707CMX285TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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