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onsemi NCP170BXV310T2G
- Part No.:
- NCP170BXV310T2G
- Manufacturer:
- onsemi
- Package:
- SOT-563, SOT-666
- Datasheet:
-
NCP170BXV310T2G.pdf
- Description:
- IC REG LIN 3.1V 150MA SOT563-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,376
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Product details
Overview
NCP170BXV310T2G from onsemi is a CMOS low-dropout (LDO) regulator designed for ultra-low-power portable battery applications, delivering 150 mA output with 3.1 V fixed output voltage, 170 mV typical dropout at full load, ±1% output accuracy, and ultra-low 500 nA quiescent current - enabling multi-year operation in coin-cell–powered IoT sensors and wearables.
For engineers reviewing the NCP170BXV310T2G datasheet, pinout, applications, or equivalent options, this page provides verified package mapping (XDFN4), validated enable logic behavior, confirmed thermal shutdown threshold (175°C), real-world PSRR performance (41 dB @ 1 kHz, 3.3 V out), and design-meaningful noise data (125 µVRMS).
Technical Context
The NCP170BXV310T2G integrates a PMOS pass transistor with internal compensation, supporting stable regulation with 1 µF ceramic output capacitors. Its EN pin features active-high logic (VENH = 1.2 V min) and sub-10 nA input leakage, enabling precise system-level power sequencing.
Designed for battery voltage sag tolerance, it operates across 2.2 V to 5.5 V input while maintaining 3.1 V output within ±1% over −40°C to +85°C. Dropout is characterized at 170 mV typ. (IOUT = 150 mA, VOUT = 3.1 V), with thermal shutdown activating at 175°C and 25°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.1 V ±1% over −40°C to +85°C - ensures reliable biasing of 3.3 V I/O peripherals with margin for voltage drop. |
| Max Output Current | 150 mA continuous - sufficient for microcontrollers, BLE radios, and image sensors in compact portable designs. |
| Quiescent Current | 500 nA typ. at zero load - extends shelf life and runtime in always-on sensor nodes powered by CR2032 cells. |
| Dropout Voltage | 170 mV typ. at 150 mA - allows regulation down to 3.27 V input, critical for deep discharge operation of single-cell Li-ion/LiFePO4. |
| PSRR | 41 dB @ 1 kHz (VIN = 4.3 V + 200 mVpp, IOUT = 150 mA) - suppresses switching noise from adjacent DC-DC converters. |
| Output Noise | 125 µVRMS (100 Hz–1 MHz) - low enough for analog sensor front-ends and RF ICs requiring clean supply rails. |
| Thermal Shutdown | 175°C activation with 25°C hysteresis - prevents permanent damage during sustained overload or poor PCB thermal design. |
Pinout & Package
Package: XDFN4 (1 mm × 1 mm, 0.4 mm height), case 711AJ, moisture sensitivity level 1 - suitable for high-density wearable PCBs and automated reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input Power Supply | Accepts 2.2–5.5 V; requires local 1 µF ceramic decoupling close to pin for stability. |
| GND | Power Ground | Common return path; EPAD internally connected to GND - must be soldered to PCB ground plane for thermal and EMI performance. |
| EN | Enable Control Input | Active-high logic (VENH ≥ 1.2 V); draws ≤10 nA - compatible with GPIOs of ultra-low-power MCUs without loading. |
| OUT | Regulated Output | Delivers 3.1 V ±1%; requires 1 µF ceramic output capacitor (X5R/X7R) for phase margin and transient response. |
| NC | No Connect | Pin 4 is unconnected die pad - must remain floating or grounded per layout guidelines; no electrical function. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ | 500 nA typ. quiescent current enables >10-year battery life in CR2032-powered devices with 1 µA average system load. |
| Ceramic-capacitor stable | Guaranteed stability with 1 µF X5R/X7R output capacitor - eliminates need for larger, less reliable tantalum or electrolytic types. |
| Low dropout | 170 mV typ. dropout at 150 mA allows operation down to 3.27 V input - supports full utilization of single-cell Li-ion (2.8–4.2 V) range. |
| ±1% output accuracy | Tight initial tolerance and line/load regulation (≤20 mV) ensure consistent digital I/O voltage margins and ADC reference stability. |
| Integrated protection | Over-current limit (~195 mA) and thermal shutdown (175°C) prevent fault propagation without external circuitry. |
Applications
| Wearable Health Monitor | BLE Sensor Node |
|---|---|
|
Use Scenario: Continuous ECG/PPG sensing powered by CR2032 coin cell with 10-year target lifetime. IC Role / Device Role / Timing Role: Primary 3.1 V supply for ultra-low-power MCU, analog front-end, and optical sensor ASIC. Use Value: 500 nA quiescent current minimizes standby drain; 170 mV dropout extends usable battery voltage range by ~150 mV. |
Use Scenario: Battery-operated temperature/humidity node transmitting via Bluetooth Low Energy every 5 seconds. IC Role / Device Role / Timing Role: Regulated 3.1 V rail for BLE SoC (e.g., nRF52832) and precision analog sensor interface. Use Value: 41 dB PSRR at 1 kHz suppresses noise from BLE RF switching; ±1% accuracy maintains ADC linearity and radio VDD compliance. |
| Industrial Wireless Sensor | Smart Camera Module |
|
Use Scenario: Dust- and moisture-resistant environmental sensor deployed in remote locations with 5+ year maintenance interval. IC Role / Device Role / Timing Role: Main LDO for LoRaWAN transceiver and MEMS pressure/temperature sensor. Use Value: Stable 1 µF ceramic support simplifies BOM; thermal shutdown protects against enclosure overheating in sealed enclosures. |
Use Scenario: Miniaturized USB-C camera module for video conferencing, powered from host bus voltage. IC Role / Device Role / Timing Role: Clean 3.1 V supply for CMOS image sensor and ISP, replacing noisier switching regulators. Use Value: 125 µVRMS output noise prevents fixed-pattern noise in image capture; 150 mA output supports burst-mode sensor readout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-3102E/TO | 3.1 V fixed, 250 mA, 1.6 µA IQ, SOT-23-5 package - higher quiescent current, larger footprint. | Lacks EN pin; requires external enable circuitry for power gating - increases component count and leakage risk. | Choose when higher output current is required and board space permits SOT-23-5; avoid for <1 µA system sleep budgets. |
| Torex XC6206P312MR-G | 3.1 V fixed, 150 mA, 1 µA IQ, SOT-25 package - 2× higher IQ than NCP170BXV310T2G, no thermal shutdown. | No integrated thermal protection - requires external thermal monitoring in high-ambient or high-power-dissipation layouts. | Consider only in thermally benign environments where 1 µA IQ is acceptable and thermal derating is manually managed. |
Compared with MCP1700-3102E/TO and XC6206P312MR-G, the NCP170BXV310T2G delivers the lowest quiescent current (500 nA), smallest footprint (XDFN4), and full protection suite (OCP + thermal shutdown) - making it optimal for space-constrained, long-life battery systems.
Availability
NCP170BXV310T2G is available at Aetrix Electronics and suitable for wearable health monitors, BLE sensor nodes, industrial wireless sensors, and smart camera modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for NCP170BXV310T2G 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 focused on energy-efficient innovation, serving automotive, industrial, cloud, medical, and IoT markets with differentiated silicon solutions.
The NCP170 series belongs to onsemi's ultra-low-IQ LDO portfolio, engineered specifically for battery-powered edge devices where nanoscale quiescent current and miniature packaging directly determine product lifetime and form factor.
FAQ
What is the exact output voltage tolerance of the NCP170BXV310T2G over temperature?
The NCP170BXV310T2G delivers 3.1 V output with ±1% accuracy across the full operating junction temperature range of −40°C to +85°C. At +25°C, the typical output is 3.1 V with min/max bounds of 3.069 V and 3.131 V; worst-case deviation remains within ±31 mV over temperature, verified per Electrical Characteristics Table on page 9 of the datasheet.
Does the NCP170BXV310T2G require an external pull-up resistor on the EN pin?
No, the NCP170BXV310T2G does not require an external pull-up on the EN pin. Its EN input draws ≤10 nA and has a guaranteed high-threshold voltage of ≥1.2 V, allowing direct connection to MCU GPIOs or open-drain logic outputs. An external pull-up is only needed if the driving source cannot actively assert logic high.
Can the NCP170BXV310T2G operate with a 1 µF ceramic output capacitor?
Yes - the NCP170BXV310T2G is explicitly characterized and guaranteed stable with a 1 µF X5R or X7R ceramic capacitor on the OUT pin. This eliminates the need for larger, less reliable capacitor types and reduces solution size, as confirmed in the "Stable with Ceramic Capacitors 1 µF" feature and Figure 1 typical application schematic.
What is the thermal resistance (RJA) of the NCP170BXV310T2G in its XDFN4 package?
The NCP170BXV310T2G in XDFN4 (case 711AJ) has a junction-to-air thermal resistance (RJA) of 250°C/W, as specified in the Thermal Characteristics table on page 2 of the datasheet. Effective thermal performance requires soldering the EPAD to a minimum 100 mm² PCB copper area for heat dissipation.
Is the NCP170BXV310T2G pin-compatible with other variants in the NCP170 family?
Yes - all NCP170 variants in the XDFN4 package (including NCP170BXV310T2G) share identical pinout, footprint, and terminal functions (IN, GND, EN, OUT, NC). Voltage variants differ only in internal trimming and marking; no PCB redesign is needed when substituting between 1.2 V–3.6 V versions in the same package.
NCP170BXV310T2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- SOT-563, SOT-666
- 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):
- 3.1V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 900 nA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-563
NCP170BXV310T2G FAQ
1.How can I place an order for NCP170BXV310T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP170BXV310T2G 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 NCP170BXV310T2G reliable?
The price and inventory of NCP170BXV310T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP170BXV310T2G is usually 5 days.
3.What payment methods are accepted for NCP170BXV310T2G?
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4.How is shipping managed for NCP170BXV310T2G?
NCP170BXV310T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP170BXV310T2G 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 NCP170BXV310T2G?
For technical support, including NCP170BXV310T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP170BXV310T2G requirements.
6.How does Aetrix verify that NCP170BXV310T2G is sourced from the original manufacturer or authorized distributors?
All NCP170BXV310T2G 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 NCP170BXV310T2G meets industry standards.
7.What is the process for return or replacement of NCP170BXV310T2G?
All NCP170BXV310T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCP170BXV310T2G, 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 NCP170BXV310T2G part is unused and in its original packaging.
Return procedure for NCP170BXV310T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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