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onsemi NCP702MX33TCG
- Part No.:
- NCP702MX33TCG
- Manufacturer:
- onsemi
- Package:
- 6-XFDFN
- Datasheet:
-
NCP702MX33TCG.pdf
- Description:
- IC REG LINEAR 3.3V 200MA 6XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,098
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Product details
Overview
NCP702MX33TCG from onsemi is a 200 mA ultra-low-noise, ultra-low-quiescent-current LDO voltage regulator delivering fixed 3.3 V output with ±2% accuracy over full load/line/temperature, 140 mV typical dropout at 200 mA, and 11 µVRMS output noise (100 Hz–100 kHz), optimized for powering RF circuits, PLLs, and low-noise amplifiers in portable battery-operated systems.
For engineers reviewing the NCP702MX33TCG datasheet, pinout, applications, or equivalent options, key selection criteria include its adaptive ground current (10 µA typ. IQ at no load), active output discharge (1 kΩ pull-down), PSRR of 68 dB at 1 kHz, stability with 1 µF ceramic output capacitor, and operation across 2.0 V–5.5 V input range.
Technical Context
The NCP702MX33TCG integrates a PMOS pass transistor with adaptive biasing to maintain ultra-low quiescent current under light loads while sustaining regulation accuracy and transient response. Its internal bandgap reference, soft-start circuitry, and UVLO (1.6 V enable threshold) ensure robust startup and brownout immunity.
It employs an active discharge path activated during shutdown (EN < 0.4 V), pulling VOUT to GND via a 1 kΩ internal resistor, and features thermal shutdown (160 °C trip, 20 °C hysteresis) and current limiting (385 mA typ.) for fault protection without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±2% over −40 °C to +125 °C, 0–200 mA load, and 3.6–5.5 V input - ensures stable rail for MCU I/O, RF front-ends, and analog sensors. |
| Quiescent Current | 10 µA typical at no load - enables multi-year battery life in always-on IoT sensors and wearables. |
| Output Noise | 11 µVRMS (100 Hz–100 kHz) - eliminates need for external noise-bypass capacitor in sensitive PLL/VCO supply paths. |
| PSRR | 68 dB at 1 kHz - suppresses switching noise from adjacent DC-DC converters feeding mixed-signal SoCs. |
| Dropout Voltage | 140 mV typical at 200 mA - supports operation down to 3.44 V input when regulating 3.3 V, critical for Li-ion (3.0–4.2 V) and coin-cell applications. |
| Enable Threshold | VEN_HI = 0.9 V, VEN_LO = 0.4 V - compatible with 1.8 V and 3.3 V logic-level microcontrollers without level-shifting. |
| Shutdown Current | 0.01 µA typical (10 nA) - minimizes leakage in deep-sleep modes of portable medical devices. |
Pinout & Package
Package: XDFN-6 (1.5 mm × 1.5 mm, 0.5 mm pitch, 0.5 mm height), moisture sensitivity level 1 (MSL-1), Pb-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input power supply connection | Accepts 2.0–5.5 V; requires ≥1 µF ceramic capacitor placed adjacent to pin to suppress high-frequency noise and limit inrush. |
| 2 (EN) | Logic-enable control input | Active-high; drives >0.9 V to enable regulation, <0.4 V to disable with active discharge; internal 110 nA pull-down ensures default-off state. |
| 3 (N/C) | No-connect terminal | Internally unconnected; may be tied to GND to improve thermal dissipation but must not be used as signal or power path. |
| 4 (OUT) | Regulated output voltage | Delivers 3.3 V ±2%; stable with 1 µF X5R/X7R ceramic capacitor; trace resistance to load must be <50 mΩ to preserve load regulation. |
| 5 (GND) | Power ground reference | Primary return path for IN, OUT, and EN currents; must be connected to low-impedance PCB ground plane to minimize noise coupling. |
| 6 (N/C) | No-connect terminal | Internally unconnected; same thermal role as Pin 3 - tie to GND only for thermal enhancement, not electrical function. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise without bypass cap | 11 µVRMS noise achieved using internal filtering architecture - eliminates BOM cost and board space for external 10 nF–100 nF noise capacitor. |
| Adaptive ground current | 10 µA IQ at zero load rising to 160 µA at 200 mA - extends battery runtime in intermittent-sensing applications like BLE beacons. |
| Active output discharge | 1 kΩ internal pull-down activated during shutdown - ensures rapid, controlled VOUT decay (<1 ms for 1 µF), preventing back-powering of downstream circuitry. |
| Stable with 1 µF ceramic COUT | Guaranteed phase margin >45° with 1 µF X5R/X7R MLCC (±10%, 0402/0603) - simplifies layout and reduces bill-of-materials vs. legacy LDOs requiring ≥10 µF. |
| Integrated protections | Thermal shutdown (160 °C), current limit (385 mA typ.), and UVLO (1.6 V enable) - enables single-chip power solution without external fault management ICs. |
Applications
| GNSS Receiver Power Supply | Wireless Audio Codec Biasing |
|---|---|
|
Use Scenario: Powering GPS/Galileo LNA and VCO stages in handheld navigation devices where supply ripple directly degrades carrier-to-noise ratio (C/N0). IC Role / Device Role / Timing Role: Ultra-low-noise 3.3 V bias rail generator with 68 dB PSRR at 1 kHz to reject noise from baseband processor switching. Use Value: Enables C/N0 >45 dB-Hz by suppressing 11 µVRMS integrated noise - meeting RTK-grade positioning accuracy requirements. |
Use Scenario: Supplying DAC, ADC, and headphone amplifier sections in Bluetooth earbuds where audible hiss must be minimized. IC Role / Device Role / Timing Role: Low-noise, low-IQ post-regulator for audio codec ICs operating from shared 3.7 V Li-ion battery. Use Value: Delivers 11 µVRMS noise floor and 10 µA quiescent current - extending playback time to >8 hours while maintaining SNR >110 dB. |
| Portable ECG Front-End | Smart Sensor Node Core Rail |
|
Use Scenario: Providing clean 3.3 V supply to instrumentation amplifiers and 24-bit sigma-delta ADCs in battery-powered ECG patches. IC Role / Device Role / Timing Role: Precision analog rail generator with ±2% output accuracy and <2.6 mV load regulation over 0–200 mA. Use Value: Maintains ADC effective resolution >20 bits by limiting supply-induced gain error to <0.01% FS across temperature and load. |
Use Scenario: Powering Cortex-M0+ MCU, BLE radio, and environmental sensors (temp/humidity/pressure) in industrial wireless sensor nodes. IC Role / Device Role / Timing Role: Primary system rail with active discharge enabling fast wake-up from hibernation and safe reset sequencing. Use Value: Reduces system wake-up latency by 3× via 1 kΩ active discharge - achieving sub-100 µs VOUT ramp from 0 V to 3.3 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO voltage regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6210B332MR-G | 300 mA rated, 25 µVRMS noise, requires 2.2 µF min. COUT, no active discharge | Lacks active discharge and higher noise limits use in fast-wake systems and ultra-low-noise RF chains | Select when higher output current headroom is needed and discharge timing is managed externally |
| Diodes Inc. AP7361-C-33SA-7 | 300 mA rated, 30 µVRMS noise, 25 µA IQ, no UVLO or thermal shutdown | Higher noise and missing protections reduce suitability for medical or automotive-qualified designs | Choose for cost-sensitive consumer applications where full protection set is not required |
Compared with the NCP702MX33TCG, the XC6210B332MR-G offers higher current but sacrifices noise performance and discharge control, while the AP7361-C-33SA-7 trades off protection features and quiescent current for lower unit cost - making the NCP702MX33TCG optimal for precision, safety-critical, or battery-constrained designs.
Availability
NCP702MX33TCG is available at Aetrix Electronics and suitable for GNSS receivers, portable medical monitors, wireless audio codecs, and smart sensor nodes requiring stable component supply with guaranteed long-term manufacturability and consistent parametric performance.
Supply support for NCP702MX33TCG 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 NCP702MX33TCG belongs to onsemi's high-performance LDO family engineered specifically for noise-sensitive, battery-constrained portable electronics - emphasizing ultra-low IQ, minimal footprint, and integrated reliability features.
FAQ
What is the maximum input voltage rating for the NCP702MX33TCG?
The NCP702MX33TCG has an absolute maximum input voltage of 6 V, but its recommended operating input voltage range is 2.0 V to 5.5 V. Operation above 5.5 V risks permanent damage, while operation below 2.0 V may prevent regulation due to UVLO activation at ~1.6 V. For reliable 3.3 V output, VIN must remain ≥3.44 V (3.3 V + 140 mV dropout) under full 200 mA load.
Does the NCP702MX33TCG require an external noise-bypass capacitor?
No, the NCP702MX33TCG achieves 11 µVRMS output noise (100 Hz–100 kHz) without any external noise-bypass capacitor due to its internal low-noise architecture. This eliminates the need for a dedicated 10 nF–100 nF ceramic capacitor typically required by competing LDOs, reducing BOM count and PCB area.
How does the active discharge feature operate in the NCP702MX33TCG?
When the EN pin voltage falls below 0.4 V, the NCP702MX33TCG activates an internal 1 kΩ pull-down resistor between OUT and GND, discharging the output capacitance rapidly. This ensures VOUT decays to <100 mV within <1 ms for a 1 µF load, preventing back-powering of downstream ICs and enabling clean system reset sequencing.
What output capacitor is required for stability with the NCP702MX33TCG?
The NCP702MX33TCG is stable with a minimum 1.0 µF ceramic capacitor (X5R or X7R dielectric, ±10% tolerance, 0402 or larger) on the output. Larger values (e.g., 4.7 µF or 10 µF) improve PSRR above 10 kHz and load transient response but are not required for basic stability. Tantalum capacitors are not recommended due to high ESR.
Is the NCP702MX33TCG pin-compatible with other variants in the NCP702 family?
Yes, all NCP702 variants - including NCP702MX33TCG (3.3 V fixed), NCP702MX25TCG (2.5 V), and NCP702MX18TCG (1.8 V) - share identical XDFN-6 (1.5 mm × 1.5 mm) package and pinout (IN, EN, N/C, OUT, GND, N/C). Only the output voltage differs; no PCB redesign is needed when substituting between fixed-voltage options.
NCP702MX33TCG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 6-XFDFN
- 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):
- 3.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 16 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Soft Start, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-XDFN (1.5x1.5)
NCP702MX33TCG FAQ
1.How can I place an order for NCP702MX33TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP702MX33TCG 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 NCP702MX33TCG reliable?
The price and inventory of NCP702MX33TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP702MX33TCG is usually 5 days.
3.What payment methods are accepted for NCP702MX33TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP702MX33TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP702MX33TCG?
NCP702MX33TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP702MX33TCG 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 NCP702MX33TCG?
For technical support, including NCP702MX33TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP702MX33TCG requirements.
6.How does Aetrix verify that NCP702MX33TCG is sourced from the original manufacturer or authorized distributors?
All NCP702MX33TCG 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 NCP702MX33TCG meets industry standards.
7.What is the process for return or replacement of NCP702MX33TCG?
All NCP702MX33TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCP702MX33TCG, 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 NCP702MX33TCG part is unused and in its original packaging.
Return procedure for NCP702MX33TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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