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onsemi NCP170AXV150T2G
- Part No.:
- NCP170AXV150T2G
- Manufacturer:
- onsemi
- Package:
- SOT-563, SOT-666
- Datasheet:
-
NCP170AXV150T2G.pdf
- Description:
- IC REG LIN 1.5V 150MA SOT563-6
- Quantity:
- Payment:
- Shipping:
Inventory:1,420
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Product details
Overview
NCP170AXV150T2G from onsemi is a CMOS low-dropout linear regulator designed for ultra-low-power portable battery applications. It delivers 150 mA output current with 1.5 V fixed output voltage, ultra-low 500 nA typical quiescent current, 170 mV typical dropout at full load, and ±1% output voltage accuracy over −40°C to +85°C - enabling multi-year operation in coin-cell–powered IoT sensors and wearables.
For engineers reviewing the NCP170AXV150T2G datasheet, pinout, applications, or equivalent options, key selection criteria include its 2.2–5.5 V input range, active discharge capability ('A' variant), thermal shutdown (175°C), and compatibility with 1 µF ceramic output capacitors - critical for space-constrained, long-life edge-node designs.
Technical Context
The NCP170AXV150T2G integrates a PMOS pass transistor with precision bandgap reference and error amplifier, enabling stable regulation under dynamic load transients common in wireless sensor wake-up cycles. Its enable pin (EN) features TTL-compatible thresholds (VENH = 1.2 V, VENL ≤ 0.4 V) and sub-10 nA leakage, supporting low-power system-level control.
Designed specifically for battery-powered systems, it includes over-current protection (225 mA short-circuit limit), thermal shutdown with 25°C hysteresis, and operates reliably with minimal external components - only input and output 1 µF X7R ceramics required per the typical application schematic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5 V ±1% over −40°C to +85°C - ensures stable core biasing for 1.5 V logic and analog circuitry without external feedback. |
| Max Output Current | 150 mA continuous - sufficient to power microcontrollers, BLE radios, and image sensors in compact portable devices. |
| Quiescent Current | Typ. 500 nA - extends shelf life and operational runtime in always-on, intermittently active battery systems (e.g., smart tags). |
| Dropout Voltage | Typ. 170 mV at 150 mA - allows regulation down to VIN = 1.67 V, maximizing usable battery voltage range from alkaline or Li-MnO₂ cells. |
| PSRR @ 1 kHz | 57 dB at 150 mA - suppresses switching noise from adjacent DC-DC converters, preserving signal integrity in mixed-signal sensor nodes. |
| Thermal Shutdown | 175°C activation with 25°C hysteresis - provides robust fault recovery during sustained overload or high-ambient conditions. |
| Active Discharge | Enabled ('A' suffix) - discharges output via 100 Ω internal path when EN = low, ensuring fast, controlled power-down for sequencing-critical systems. |
Pinout & Package
Package: SOT-563 (Case 463A), 1.6 mm × 1.6 mm × 0.55 mm, 6-pin, RoHS-compliant, Pb-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Input supply connection - accepts 2.2–5.5 V; requires local 1 µF ceramic decoupling. |
| 2 | GND | Power ground reference - connects to PCB ground plane for low-noise regulation and thermal dissipation. |
| 3 | EN | Enable input (active-high) - drives device ON/OFF; <0.4 V disables regulator and activates active discharge. |
| 4 | OUT | Regulated output - supplies 1.5 V to load; stable with 1 µF ceramic capacitor (no ESR requirement). |
| 5 | GND | Second ground terminal - improves thermal performance and reduces ground loop impedance. |
| 6 | NC | No connect - internally unconnected; must be left floating or tied to GND per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ | 500 nA typical quiescent current enables >10-year battery life in 10 µA average-load IoT endpoints. |
| Small-footprint packaging | SOT-563 (1.6 × 1.6 mm) saves board area vs. larger SOT-23 or TSOP-5 alternatives in wearable and medical patch designs. |
| Active output discharge | 100 Ω internal discharge path pulls OUT to GND within milliseconds of disable - eliminates hold-up voltage in power-sequenced systems. |
| Stable with 1 µF ceramics | Eliminates need for bulky tantalum or aluminum electrolytics, reducing BOM cost and improving reliability in temperature-cycling environments. |
| ±1% output accuracy | Guaranteed across temperature and line/load - avoids margining overhead in precision analog front-ends and ADC reference supplies. |
Applications
| Wearable Health Sensors | BLE Beacon Modules |
|---|---|
|
Use Scenario: Continuous ECG/PPG monitoring powered by CR2032 coin cell with 10-year target lifetime. IC Role / Device Role / Timing Role: Primary 1.5 V supply for ultra-low-power MCU and analog front-end ASIC. Use Value: 500 nA IQ minimizes standby drain; 170 mV dropout extends usable battery range from 3.0 V down to 1.67 V. |
Use Scenario: Battery-powered asset tracker transmitting periodic BLE advertisements every 2 seconds. IC Role / Device Role / Timing Role: Stable 1.5 V rail for Nordic nRF52832 SoC during RF transmit bursts. Use Value: 57 dB PSRR at 1 kHz suppresses DC-DC ripple; active discharge ensures clean reset between advertising intervals. |
| Smart Industrial Tags | Portable Medical Diagnostics |
|
Use Scenario: NFC-enabled temperature/humidity tag operating in cold-chain logistics with −25°C minimum ambient. IC Role / Device Role / Timing Role: Regulator for EEPROM, sensor interface, and NFC controller IC. Use Value: ±1% output accuracy maintained from −40°C to +85°C ensures consistent sensor calibration and memory write margins. |
Use Scenario: Handheld pulse oximeter using AAA batteries and requiring FDA-grade reliability and low EMI. IC Role / Device Role / Timing Role: Low-noise 1.5 V supply for photodiode amplifier and ADC reference. Use Value: 85 µVrms output noise (100 Hz–1 MHz) prevents signal corruption in sub-mV physiological measurements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1502E/MB | 150 mA, 1.5 V, 1.6 µA IQ (typ), SOT-23-5 package - 3× higher quiescent current than NCP170AXV150T2G. | Lacks active discharge; less suitable for strict power-sequencing requirements. | Choose when board space permits larger SOT-23 and ultra-low IQ is not mandatory. |
| Torex XC6206P152MR-G | 150 mA, 1.5 V, 1 µA IQ (typ), SOT-25 - no enable pin or thermal shutdown; 300 mV dropout at 150 mA. | No EN control or fault protection; limited to simple always-on loads. | Select only for cost-sensitive, non-critical applications where safety features are omitted. |
Compared with MCP1700T-1502E/MB and XC6206P152MR-G, the NCP170AXV150T2G uniquely combines ultra-low 500 nA IQ, integrated EN control, active discharge, and thermal protection in a 1.6 mm² footprint - making it optimal for next-generation battery-constrained edge devices demanding both longevity and robustness.
Availability
NCP170AXV150T2G is available at Aetrix Electronics and suitable for wearable health sensors, BLE beacon modules, and smart industrial tags requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for NCP170AXV150T2G 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 NCP170 series targets ultra-low-power portable electronics, with the NCP170AXV150T2G optimized for 1.5 V fixed-output, battery-life-critical systems requiring minimal quiescent current and robust protection features.
FAQ
What is the maximum input voltage rating for the NCP170AXV150T2G?
The NCP170AXV150T2G has an absolute maximum input voltage rating of 6.0 V. Operation above this level risks permanent damage. The recommended operating input voltage range is 2.2 V to 5.5 V, which aligns with common single-cell Li-ion, Li-MnO₂, and alkaline battery configurations. The NCP170AXV150T2G maintains regulation and specified performance across this full range.
Does the NCP170AXV150T2G require an external resistor divider for output voltage setting?
No, the NCP170AXV150T2G is a fixed-output LDO with factory-trimmed 1.5 V regulation - no external resistors are needed. Its 'XV' suffix denotes the 1.5 V version in SOT-563 package. Unlike adjustable variants (e.g., NCP170BMX150T2G), the NCP170AXV150T2G integrates precision feedback, eliminating BOM count and layout sensitivity while guaranteeing ±1% output accuracy.
How does the active discharge function operate in the NCP170AXV150T2G?
When the EN pin is driven low, the NCP170AXV150T2G activates an internal 100 Ω discharge path between OUT and GND, rapidly pulling the output voltage to near-zero. This feature is enabled by the 'A' suffix and is confirmed in the Electrical Characteristics table (RLOW = 100 Ω). It ensures safe, predictable power-down in systems requiring strict voltage sequencing or fast wake-up readiness.
Can the NCP170AXV150T2G be used with ceramic output capacitors smaller than 1 µF?
No - the NCP170AXV150T2G is characterized and guaranteed stable only with ≥1 µF ceramic output capacitance (X7R or better). Using smaller values may cause oscillation or degraded transient response. The datasheet explicitly states "Stable with Ceramic Capacitors 1 µF" and shows typical application circuits with exactly 1 µF at OUT. Deviating invalidates stability guarantees.
What is the thermal resistance (RJA) of the NCP170AXV150T2G in its SOT-563 package?
The NCP170AXV150T2G in SOT-563 package has a junction-to-air thermal resistance (RJA) of 200°C/W, as specified in the Thermal Characteristics table. This value assumes standard JEDEC 2-layer board conditions. Adequate copper pour under the exposed pad (Pin 2 and Pin 5) is essential to achieve this rating; insufficient thermal land area will increase actual RJA and reduce safe operating current.
NCP170AXV150T2G 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):
- 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 900 nA
- Current - Supply (Max):
- -
- PSRR:
- 57dB (1kHz)
- 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
NCP170AXV150T2G FAQ
1.How can I place an order for NCP170AXV150T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCP170AXV150T2G 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 NCP170AXV150T2G reliable?
The price and inventory of NCP170AXV150T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCP170AXV150T2G is usually 5 days.
3.What payment methods are accepted for NCP170AXV150T2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCP170AXV150T2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCP170AXV150T2G?
NCP170AXV150T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCP170AXV150T2G 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 NCP170AXV150T2G?
For technical support, including NCP170AXV150T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCP170AXV150T2G requirements.
6.How does Aetrix verify that NCP170AXV150T2G is sourced from the original manufacturer or authorized distributors?
All NCP170AXV150T2G 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 NCP170AXV150T2G meets industry standards.
7.What is the process for return or replacement of NCP170AXV150T2G?
All NCP170AXV150T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCP170AXV150T2G, 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 NCP170AXV150T2G part is unused and in its original packaging.
Return procedure for NCP170AXV150T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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