onsemi NCP715MX53TBG
- Part No.:
- NCP715MX53TBG
- Manufacturer:
- onsemi
- Package:
- 6-XFDFN
- Datasheet:
-
NCP715MX53TBG.pdf
- Description:
- IC REG LINEAR 5.3V 50MA 6XDFN
- Quantity:
- Payment:

- Shipping:

Inventory:4,991
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Product details
Overview
NCP715MX53TBG from onsemi is a 50 mA fixed-output (5.3 V) ultra-low quiescent current LDO linear voltage regulator with 2.5 V to 24 V input range, ±2% output accuracy over load/line/temperature, 230–350 mV dropout at 50 mA, and integrated thermal shutdown and current limiting. It serves as a precision local power rail in battery-powered portable equipment requiring stable low-noise 5.3 V supply.
For engineers reviewing the NCP715MX53TBG datasheet, pinout, applications, or equivalent options, key selection criteria include its 4.7 µA max ground current across full load and temperature, 55 dB PSRR at 100 kHz, 195 µVRMS output noise (200 Hz–100 kHz), XDFN6 1.5×1.5 mm package, and compatibility with 0.47 µF ceramic output capacitors.
Technical Context
The NCP715MX53TBG implements a PMOS pass transistor architecture enabling low dropout and ultra-low quiescent current. Its bandgap reference and error amplifier maintain regulation under varying line (2.5–24 V), load (0–50 mA), and temperature (−40°C to +125°C) conditions.
Protection circuitry includes foldback current limiting that activates before thermal shutdown (170°C junction, 15°C hysteresis), ensuring safe operation during sustained overload or short-circuit events without latch-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.3 V ±2% over −40°C to +125°C, 0–50 mA load, and 6.3–24 V input - ensures stable MCU core or sensor bias rail without external feedback. |
| Quiescent Current | Max 4.7 µA over full load and temperature - enables >10-year battery life in always-on IoT sensors. |
| Dropout Voltage | 230–350 mV at 50 mA - supports regulation from 5.53 V input, critical for single-cell LiFePO₄ or dual-cell alkaline systems. |
| PSRR | 55 dB at 100 kHz - suppresses switching noise from upstream DC-DC converters feeding the LDO input. |
| Noise | 195 µVRMS (200 Hz–100 kHz) - meets low-noise analog front-end requirements for precision ADCs or RF receivers. |
| Thermal Shutdown | 170°C activation with 15°C hysteresis - prevents permanent damage during PCB layout thermal hotspots or ambient derating. |
| Package | XDFN6 1.5×1.5 mm, 0.5 mm pitch - enables high-density placement in space-constrained wearables and medical patches. |
Pinout & Package
XDFN6 1.5×1.5 mm package (Case 711AE) with wettable flank leads for automated optical inspection. Thermal pad exposed on bottom for enhanced heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Main input supply connection; requires ≥0.1 µF ceramic decoupling to GND for stability and transient response. |
| 2 | GND | Power ground reference; must be connected to low-impedance PCB ground plane for noise control and thermal conduction. |
| 3 | N/C | No internal connection; may be tied to GND to improve thermal dissipation or left floating. |
| 4 | N/C | No internal connection; may be tied to GND to improve thermal dissipation or left floating. |
| 5 | OUT | Regulated 5.3 V output; requires ≥0.47 µF ceramic capacitor to GND for loop stability and load transient suppression. |
| 6 | N/C | No internal connection; may be tied to GND to improve thermal dissipation or left floating. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ | 4.7 µA max enables multi-year operation from coin cells in maintenance-free remote sensors. |
| Wide input range | 2.5–24 V accommodates diverse sources: single Li-ion, automotive 12 V, industrial 24 V rails, or unregulated wall adapters. |
| Low-noise output | 195 µVRMS noise allows direct powering of RF transceivers and precision analog signal chains without additional filtering. |
| Stable with small ceramics | 0.47 µF minimum COUT eliminates need for bulky tantalum or electrolytic capacitors, reducing BOM cost and board area. |
| Integrated protection | Thermal shutdown and current limiting prevent field failures due to PCB overheating or accidental shorts during assembly/test. |
Applications
| Wearable Health Monitor | Industrial Sensor Node |
|---|---|
Use Scenario: Continuous ECG/PPG acquisition in a wrist-worn patch powered by CR2032 coin cell. IC Role / Device Role / Timing Role: Provides clean, regulated 5.3 V supply to analog front-end and BLE SoC, replacing inefficient charge pumps. Use Value: 4.7 µA quiescent current extends battery life beyond 2 years; 195 µVRMS noise avoids signal corruption in sub-µV biomedical measurements. | Use Scenario: Wireless vibration sensor mounted on factory motor housing, operating from 24 V DC industrial bus. IC Role / Device Role / Timing Role: Generates isolated 5.3 V rail for MEMS accelerometer and microcontroller, rejecting conducted noise from variable-frequency drives. Use Value: 55 dB PSRR at 100 kHz attenuates PWM switching harmonics; 24 V max input eliminates need for pre-regulator stage. |
| Smart Meter Auxiliary Rail | Automotive Telematics Module |
Use Scenario: Powering real-time clock and secure element in electricity meter with backup supercapacitor. IC Role / Device Role / Timing Role: Delivers precise 5.3 V to RTC and crypto IC during main power loss, maintaining timekeeping and security functions. Use Value: ±2% output accuracy ensures reliable RTC timing across temperature; 230 mV dropout allows operation down to 5.53 V from depleting supercap. | Use Scenario: Supplying GPS receiver and cellular modem in vehicle black box with 12 V battery input subject to load dump transients. IC Role / Device Role / Timing Role: Local LDO post-regulator after primary 12 V DC-DC converter, providing noise-isolated 5.3 V for RF sections. Use Value: XDFN6 package withstands automotive thermal cycling; 170°C thermal shutdown protects against under-hood overheating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703T-5302E/MB | 50 mA, 5.3 V, 3.5 µA IQ, SOT-23-5 package, 600 mV dropout at 50 mA | Higher dropout limits use with low-input-voltage sources; smaller package lacks thermal pad | Select when ultra-low IQ is primary and thermal performance is secondary. |
| TLD1115-53 | 150 mA, 5.3 V, 12 µA IQ, TSOP-5 package, AEC-Q100 qualified | Higher current and automotive qualification; higher IQ reduces battery life in portable designs | Select for automotive-grade reliability where 150 mA output and AEC-Q100 compliance are mandatory. |
Compared with MCP1703T-5302E/MB and TLD1115-53, the NCP715MX53TBG offers superior thermal performance via its XDFN6 thermal pad and lower dropout for marginal input voltages, while maintaining best-in-class quiescent current-making it optimal for space-constrained, battery-sensitive industrial and medical applications.
Availability
NCP715MX53TBG is available at Aetrix Electronics and suitable for wearable health monitors, industrial sensor nodes, smart meter auxiliary rails, and automotive telematics modules requiring stable component supply with guaranteed long-term availability.
Supply support for NCP715MX53TBG 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 supplier delivering energy-efficient silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCP715MX53TBG belongs to onsemi's wide-input-voltage LDO family designed specifically for ultra-low-power, high-reliability applications where extended battery life, noise-sensitive analog performance, and robust thermal protection are critical.
FAQ
What is the maximum input voltage rating for the NCP715MX53TBG?
The NCP715MX53TBG has an absolute maximum input voltage rating of 24 V, with recommended operating range from 6.3 V to 24 V for the 5.3 V output variant. Exceeding 24 V risks permanent device damage per the Absolute Maximum Ratings table in the datasheet.
Does the NCP715MX53TBG require an external output capacitor, and what value is recommended?
Yes, the NCP715MX53TBG requires an external ceramic output capacitor for stability. The datasheet specifies a minimum of 0.47 µF, with X5R or X7R dielectrics recommended. Values up to 10 µF are supported and improve load transient response without compromising stability.
What is the thermal shutdown behavior of the NCP715MX53TBG?
The NCP715MX53TBG activates thermal shutdown at 170°C junction temperature and remains latched off until junction temperature falls by 15°C (hysteresis), resuming regulation at ~155°C. This prevents thermal cycling and ensures safe recovery after overload conditions.
Can the NCP715MX53TBG be used with input voltages below its nominal 5.3 V output?
No-the NCP715MX53TBG is a fixed 5.3 V output LDO and requires input voltage ≥ (5.3 V + dropout). Minimum functional input is 5.53 V (230 mV dropout at 50 mA); operation below this causes loss of regulation and output collapse.
Is the NCP715MX53TBG RoHS-compliant and halogen-free?
Yes, the NCP715MX53TBG is Pb-free and RoHS-compliant per the datasheet's ordering information and marking diagram. It meets JEDEC J-STD-609 Category 1 for halogen content, with chlorine and bromine levels below 900 ppm each.
NCP715MX53TBG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 6-XFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 24V
- Voltage - Output (Min/Fixed):
- 5.3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.35V @ 50mA
- Current - Output:
- 50mA
- Current - Quiescent (Iq):
- 35 µA
- Current - Supply (Max):
- -
- PSRR:
- 55dB (100kHz)
- Control Features:
- -
- Protection Features:
- Over Current, Over Temperature, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-XDFN (1.5x1.5)
NCP715MX53TBG FAQ
1.How can I place an order for NCP715MX53TBG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP715MX53TBG 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 NCP715MX53TBG reliable?
The price and inventory of NCP715MX53TBG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP715MX53TBG is usually 5 days.
3.What payment methods are accepted for NCP715MX53TBG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP715MX53TBG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP715MX53TBG?
NCP715MX53TBG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP715MX53TBG 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 NCP715MX53TBG?
For technical support, including NCP715MX53TBG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP715MX53TBG requirements.
6.How does Aetrix verify that NCP715MX53TBG is sourced from the original manufacturer or authorized distributors?
All NCP715MX53TBG 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 NCP715MX53TBG meets industry standards.
7.What is the process for return or replacement of NCP715MX53TBG?
All NCP715MX53TBG units undergo pre-shipment inspection (PSI). If there is an issue with NCP715MX53TBG, 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 NCP715MX53TBG part is unused and in its original packaging.
Return procedure for NCP715MX53TBG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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