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onsemi NCP170AXV310T2G
- Part No.:
- NCP170AXV310T2G
- Manufacturer:
- onsemi
- Package:
- SOT-563, SOT-666
- Datasheet:
-
NCP170AXV310T2G.pdf
- Description:
- IC REG LIN 3.1V 150MA SOT563-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,125
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Product details
Overview
NCP170AXV310T2G from onsemi is a CMOS ultra-low IQ LDO regulator delivering 150 mA output with 3.1 V fixed output voltage, 170 mV typical dropout at full load, ±1% output accuracy, and 500 nA typical quiescent current-designed for battery-powered image sensors and portable wireless modules where standby power and transient response are critical.
For engineers reviewing the NCP170AXV310T2G datasheet, pinout, applications, or equivalent options, this page provides verified package mapping (SOT-563), confirmed EN/IN/OUT/GND pin roles, real-world load regulation (±20 mV), thermal shutdown behavior (175°C), and validated alternatives for low-power embedded power rail design.
Technical Context
The NCP170AXV310T2G integrates a PMOS pass transistor enabling ultra-low dropout operation and features an active-high enable input with 1.2 V high-threshold and 0.4 V low-threshold, supporting controlled power sequencing in multi-rail systems. Its internal bandgap reference and error amplifier ensure stable 3.1 V regulation across −40°C to +85°C.
It employs dynamic transient boost circuitry to improve load step response-critical for burst-mode wireless transceivers-and supports ceramic output capacitors as small as 1 µF without external compensation, simplifying layout in space-constrained portable designs.
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-tolerant logic and analog sensors without external feedback. |
| Quiescent Current | Typ. 500 nA at zero load - extends shelf life and runtime in always-on IoT endpoints and wearable sleep-mode circuits. |
| Dropout Voltage | Typ. 170 mV at 150 mA - enables regulation from 3.27 V input, preserving headroom for single-cell Li-ion or 3.3 V rail derating. |
| Load Regulation | ±20 mV (0–150 mA) - maintains voltage stability during sensor activation bursts without requiring post-regulation filtering. |
| PSRR @ 1 kHz | 47 dB at 150 mA - suppresses switching noise from adjacent DC-DC converters feeding mixed-signal camera modules. |
| Thermal Shutdown | 175°C with 25°C hysteresis - protects against sustained overload in sealed enclosures while allowing recovery after brief thermal excursions. |
| EN Input Threshold | VENH = 1.2 V min, VENL = 0.4 V max - compatible with 1.8 V and 3.3 V GPIOs for clean, glitch-free enable control. |
Pinout & Package
SOT-563 (Case 463A) 6-pin package with exposed pad internally connected to GND; footprint measures 1.6 × 1.6 × 0.55 mm, optimized for automated assembly and thermal dissipation in dense PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Input supply connection; accepts 2.2–5.5 V; requires local 1 µF ceramic decoupling per datasheet. |
| 2 | GND | Power ground reference; electrically tied to EPAD for low-impedance thermal and noise return path. |
| 3 | EN | Active-high enable; pulls up to VIN or MCU GPIO; draws ≤10 nA when asserted, enabling ultra-low leakage control. |
| 4 | OUT | Regulated 3.1 V output; stable with ≥1 µF ceramic capacitor; no ESR requirements simplify BOM. |
| 5 | GND | Second ground terminal; paralleled with Pin 2 and EPAD to reduce ground loop impedance. |
| 6 | NC | No-connect; left unconnected per datasheet marking diagram and absolute maximum ratings table. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ (500 nA) | Enables >10-year battery life in coin-cell–powered devices operating at sub-µA average current. |
| Dynamic transient boost | Reduces output voltage dip by >40% during 1–50 mA load steps-critical for image sensor pixel readout timing. |
| Ceramic capacitor stability | Eliminates need for tantalum or aluminum electrolytic output caps, reducing size, cost, and failure risk. |
| Over-current & thermal protection | Self-limits fault current to ~195 mA and shuts down at 175°C, preventing damage during short-circuit or ambient overheating. |
| Pb-free / RoHS-compliant | Meets IPC-J-STD-020 moisture sensitivity level 1 (MSL1), enabling standard reflow without baking. |
Applications
| Image Sensor Power | Wireless Module Bias |
|---|---|
|
Use Scenario: Powers CMOS image sensor ICs (e.g., OV5640, AR0144) in security cameras and drones during active exposure and readout phases. IC Role / Device Role / Timing Role: Primary 3.1 V analog/digital core supply; regulates during rapid 0→100 mA load transitions induced by rolling shutter readout. Use Value: Dynamic transient boost minimizes VOUT droop below 3.0 V, preventing pixel corruption and frame loss. |
Use Scenario: Supplies 3.1 V rail to Bluetooth Low Energy (BLE) SoCs (e.g., nRF52840) during TX burst and sleep mode cycling. IC Role / Device Role / Timing Role: Standby-biased LDO enabling <1 µA system sleep current while maintaining fast wake-up capability. Use Value: 500 nA IQ allows BLE beacon firmware to achieve >5-year CR2032 battery life with 1-second advertising interval. |
| Portable Medical Monitor | Industrial Handheld Scanner |
|
Use Scenario: Delivers regulated 3.1 V to optical pulse oximeter front-end (AFE4400) and microcontroller in FDA-class II wearable monitors. IC Role / Device Role / Timing Role: Low-noise analog supply for ADC reference and photodiode bias; operates continuously during patient monitoring. Use Value: 120 µVRMS output noise (100 Hz–1 MHz) prevents SNR degradation in weak-signal SpO₂ measurements. |
Use Scenario: Powers laser diode driver and decode ASIC in rugged barcode scanners subjected to temperature cycling and mechanical shock. IC Role / Device Role / Timing Role: Main system rail LDO with thermal shutdown protecting against enclosure heat buildup during continuous scanning. Use Value: 175°C shutdown threshold and 25°C hysteresis prevent nuisance tripping while ensuring safe thermal margin under worst-case ambient + self-heating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-3102E/MB | 3.1 V fixed, 250 mA rating, 1.6 µA IQ - 3,200× higher quiescent current than NCP170AXV310T2G. | Suitable for higher-current, non-battery-critical applications; not viable for >1-year coin-cell operation. | Select when output current headroom >100 mA is required and standby current is secondary to cost or availability. |
| Torex XC6206P312MR-G | 3.1 V fixed, 250 mA, 1 µA IQ, SOT-23-3 - lacks enable pin and thermal shutdown; dropout 200 mV @ 150 mA. | Requires external enable logic and thermal monitoring; less robust in unattended deployments. | Choose only for space-constrained, cost-sensitive designs where enable control and fault protection are handled externally. |
Compared with MCP1700T-3102E/MB and XC6206P312MR-G, the NCP170AXV310T2G uniquely combines sub-µA IQ, integrated EN control, thermal protection, and 170 mV dropout in a 1.6 mm² SOT-563 package-making it the sole option for long-life, safety-aware, space-limited battery systems demanding guaranteed 3.1 V regulation.
Availability
NCP170AXV310T2G is available at Aetrix Electronics and suitable for portable medical monitors, BLE-enabled asset trackers, industrial handheld scanners, and CMOS image sensor modules requiring stable component supply with full traceability and lifecycle management.
Supply support for NCP170AXV310T2G 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 technologies for automotive, industrial, cloud, medical, and IoT applications.
The NCP170 series belongs to onsemi's ultra-low-power linear regulator product line, engineered specifically for battery-operated edge devices where nanoscale quiescent current and fast transient response directly determine operational lifetime and signal integrity.
FAQ
What is the exact output voltage tolerance of the NCP170AXV310T2G over temperature?
The NCP170AXV310T2G 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 3.100 V, with min/max bounds of 3.069 V and 3.131 V. This tight tolerance eliminates need for post-regulation trimming in precision analog sensor interfaces.
Does the NCP170AXV310T2G support active output discharge?
No, the NCP170AXV310T2G does not include active output discharge. The "A" in the part number denotes the standard version without discharge functionality. Only NCP170B variants (e.g., NCP170BXV310T2G) integrate an internal 100 Ω discharge FET between OUT and GND when EN is low. For NCP170AXV310T2G, external discharge circuitry is required if fast VOUT decay is needed.
What is the minimum input voltage required to maintain regulation at 150 mA load for the NCP170AXV310T2G?
To maintain 3.1 V regulation at 150 mA, the NCP170AXV310T2G requires VIN ≥ 3.27 V, based on its typical 170 mV dropout voltage. At worst-case (max 240 mV dropout per datasheet Figure 14), VIN must be ≥ 3.34 V. Below 3.27 V, output voltage drops linearly with input-verified in load transient plots (Figures 35–40).
Can the NCP170AXV310T2G operate with a 1 µF ceramic output capacitor?
Yes, the NCP170AXV310T2G is explicitly characterized and guaranteed stable with a 1 µF X5R/X7R ceramic capacitor on the output, as stated in the Features section and Electrical Characteristics tables. No ESR requirements or additional compensation components are needed-simplifying design and reducing BOM count versus older LDOs.
Is the NCP170AXV310T2G pin-compatible with other NCP170 voltage variants in SOT-563?
Yes, all NCP170 variants-including NCP170AXV310T2G, NCP170AXV280T2G, and NCP170AXV330T2G-are fully pin-compatible in the SOT-563 package. The same PCB footprint supports any output voltage from 1.2 V to 3.6 V in 0.1 V steps, enabling hardware reuse across product families and voltage-scaling strategies.
NCP170AXV310T2G 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
NCP170AXV310T2G FAQ
1.How can I place an order for NCP170AXV310T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP170AXV310T2G 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 NCP170AXV310T2G reliable?
The price and inventory of NCP170AXV310T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP170AXV310T2G is usually 5 days.
3.What payment methods are accepted for NCP170AXV310T2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP170AXV310T2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP170AXV310T2G?
NCP170AXV310T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP170AXV310T2G 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 NCP170AXV310T2G?
For technical support, including NCP170AXV310T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP170AXV310T2G requirements.
6.How does Aetrix verify that NCP170AXV310T2G is sourced from the original manufacturer or authorized distributors?
All NCP170AXV310T2G 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 NCP170AXV310T2G meets industry standards.
7.What is the process for return or replacement of NCP170AXV310T2G?
All NCP170AXV310T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCP170AXV310T2G, 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 NCP170AXV310T2G part is unused and in its original packaging.
Return procedure for NCP170AXV310T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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