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onsemi NCV8170AXV120T2G
- Part No.:
- NCV8170AXV120T2G
- Manufacturer:
- onsemi
- Package:
- SOT-563, SOT-666
- Datasheet:
-
NCV8170AXV120T2G.pdf
- Description:
- IC REG LIN 1.2V 150MA SOT563-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,561
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Product details
Overview
NCV8170AXV120T2G from onsemi is an automotive-grade CMOS low-dropout (LDO) regulator delivering 150 mA output with ultra-low quiescent current (typ. 500 nA), 1.2 V fixed output voltage, and 170 mV typical dropout at full load. It operates from 2.2 V to 5.5 V input and features active discharge, thermal shutdown, and ±1% output accuracy - designed for always-on battery-powered modules in ADAS cameras and telematics.
For engineers reviewing the NCV8170AXV120T2G datasheet, pinout, applications, or equivalent options, key selection criteria include ultra-low IQ for multi-year battery life, AEC-Q100 qualification for automotive reliability, active discharge for controlled power-down, and stability with 1 µF ceramic output capacitors without ESR requirements.
Technical Context
The NCV8170AXV120T2G employs a CMOS pass transistor architecture with dynamic quiescent current adjustment, enabling sub-µA standby current while maintaining fast transient response during load steps (e.g., 1 mA → 50 mA). Its enable-controlled active discharge path (RLOW ≈ 100 Ω) ensures rapid VOUT decay when disabled - critical for system-level power sequencing in infotainment and camera modules.
It integrates over-current protection, thermal shutdown (175°C trip, 25°C hysteresis), and operates across −40°C to +125°C junction temperature. The device is stable with 1 µF–10 µF X5R/X7R ceramic capacitors and achieves 57 dB PSRR at 1 kHz (IOUT = 150 mA), supporting noise-sensitive analog and RF subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2 V ±1% over −40°C to +125°C - enables direct powering of 1.2 V logic cores (e.g., MCU I/O, sensor interfaces) without external feedback. |
| Max Output Current | 150 mA continuous - sufficient for low-power microcontrollers, CAN transceivers, and image sensors in compact automotive modules. |
| Quiescent Current | Typ. 500 nA at no load - extends coin-cell or Li-ion battery life to >10 years in always-on wake-up circuits. |
| Dropout Voltage | 170 mV typ. at 150 mA - allows operation down to VIN = 1.37 V, supporting deep battery discharge in 2-cell alkaline or single-cell LiFePO₄ systems. |
| PSRR @ 1 kHz | 57 dB at 150 mA - suppresses switching noise from upstream DC-DC converters feeding noisy 3.3 V/5 V rails. |
| Active Discharge | Enabled ('A' suffix); RLOW ≈ 100 Ω - discharges VOUT in <1 ms when EN = low, preventing floating outputs and ensuring deterministic reset behavior. |
| Input Voltage Range | 2.2 V to 5.5 V - compatible with wide-input automotive supplies (e.g., post-LDO 3.3 V, raw battery via pre-regulator). |
Pinout & Package
NCV8170AXV120T2G is packaged in SOT-563 (Case 463A), a 6-pin, 1.6 mm × 1.6 mm × 0.55 mm surface-mount package with exposed pad (internally connected to GND). Pin 1 = IN, Pin 2 = GND, Pin 3 = OUT, Pin 4 = NC, Pin 5 = GND, Pin 6 = EN.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 1) | Input power supply connection | Accepts 2.2–5.5 V; requires ≥1 µF ceramic decoupling close to pin to suppress trace inductance during load transients. |
| GND (Pin 2 & Pin 5) | Power ground reference | Dual GND pins reduce ground impedance; EPAD (exposed pad) must be soldered to PCB thermal pad for optimal thermal performance (RJA = 200°C/W). |
| OUT (Pin 3) | Regulated output voltage | Delivers stable 1.2 V; connects directly to load; output capacitor (≥1 µF ceramic) must be placed adjacent to this pin. |
| NC (Pin 4) | No-connect terminal | Not internally bonded; must remain unconnected - no routing or copper fill allowed under this pad. |
| EN (Pin 6) | Enable control input | Active-high logic: VENH ≥1.2 V enables regulation; VENL ≤0.4 V disables output and activates discharge path. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualified | Validated for −40°C to +125°C operation with PPAP capability - meets automotive functional safety baseline for non-safety-critical ECUs. |
| Ultra-low IQ (500 nA typ.) | Enables >10-year battery life in keyless entry fobs and tire pressure sensors without compromising startup time or regulation accuracy. |
| Active output discharge (A option) | 100 Ω internal discharge path pulls VOUT to GND in <1 ms after disable - eliminates need for external bleed resistors and prevents back-powering of upstream circuitry. |
| Stable with 1 µF ceramic COUT | Eliminates ESR requirements and simplifies BOM - supports cost-effective, high-reliability X5R/X7R MLCCs instead of tantalum or polymer capacitors. |
| Thermal shutdown with hysteresis | 175°C trip with 25°C hysteresis prevents thermal cycling during overload - protects against sustained short-circuit faults without latch-off. |
Applications
| ADAS Camera Module Power | Automotive Telematics SoC Core |
|---|---|
|
Use Scenario: Powering 1.2 V digital core of a 5 MP automotive camera sensor ASIC in a rear-view or surround-view system. IC Role / Device Role / Timing Role: Primary LDO supplying clean, low-noise 1.2 V to image signal processor (ISP) and MIPI CSI-2 transmitter. Use Value: Ultra-low IQ preserves battery backup during vehicle sleep; active discharge ensures rapid power-down to meet ISO 26262 ASIL-B reset timing requirements. |
Use Scenario: Regulating 1.2 V core voltage for a dual-core ARM Cortex-A53 application processor in a cellular-connected telematics control unit (TCU). IC Role / Device Role / Timing Role: Secondary LDO downstream of main PMIC, providing isolated, low-noise supply for CPU core domain. Use Value: 57 dB PSRR at 1 kHz suppresses ripple from switching regulators; ±1% accuracy maintains CPU frequency stability across temperature and line variations. |
| Keyless Entry Transceiver Bias | Navigation System GNSS Front-End |
|
Use Scenario: Supplying 1.2 V to a UWB or BLE transceiver IC in a passive keyless entry (PKE) fob with 10-year battery life target. IC Role / Device Role / Timing Role: Always-on LDO maintaining regulated bias during deep-sleep mode between RF wake-up events. Use Value: 500 nA quiescent current enables >10-year shelf life on CR2032; fast enable response (<10 µs) ensures immediate RF readiness upon button press. |
Use Scenario: Powering 1.2 V LNA and baseband section of a GPS/Galileo/GLONASS receiver in an in-dash navigation head unit. IC Role / Device Role / Timing Role: Low-noise LDO isolating sensitive RF front-end from noisy digital domains. Use Value: 85 µVRMS output noise (100 Hz–1 MHz) prevents degradation of GNSS carrier-to-noise ratio (C/N₀); AEC-Q100 qualification ensures field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS78012QDRVRQ1 | Lower IQ (250 nA typ.), same 1.2 V output, but no active discharge; RJA = 220°C/W (SOT-563). | Lacks active discharge - requires external circuitry for controlled VOUT decay in systems needing fast power-down. | Select when ultra-minimal IQ is primary requirement and active discharge is not needed. |
| NCP114AMX120TBG | Higher IQ (1.5 µA typ.), same AEC-Q100 Grade 1, but no active discharge; larger SOT-23-5 package. | Higher quiescent current reduces battery life by ~3× vs. NCV8170AXV120T2G in always-on applications. | Select when board space allows larger package and active discharge is unnecessary. |
Compared with TPS78012QDRVRQ1 and NCP114AMX120TBG, the NCV8170AXV120T2G uniquely combines AEC-Q100 qualification, 500 nA IQ, and integrated active discharge in a 1.6 mm × 1.6 mm footprint - making it optimal for space-constrained, battery-critical automotive modules requiring deterministic power sequencing.
Availability
NCV8170AXV120T2G is available at Aetrix Electronics and suitable for automotive telematics, ADAS camera modules, and keyless entry systems requiring stable component supply with long-term lifecycle support and AEC-Q100 compliance.
Supply support for NCV8170AXV120T2G 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 NCV8170 series belongs to onsemi's automotive power management portfolio, engineered specifically for ultra-low-power, always-on functions in safety-critical and battery-dependent vehicle subsystems.
FAQ
What is the guaranteed minimum output voltage accuracy for NCV8170AXV120T2G over temperature?
The NCV8170AXV120T2G guarantees ±1% output voltage accuracy across the full operating junction temperature range of −40°C to +125°C. At +25°C, the output is specified as 1.188 V to 1.212 V; over temperature, it remains within 1.176 V to 1.224 V. This tight tolerance ensures reliable operation of 1.2 V logic without external trimming or calibration - critical for automotive microcontroller core supplies.
Does NCV8170AXV120T2G require an external resistor network to set output voltage?
No, the NCV8170AXV120T2G is a fixed-output LDO with factory-trimmed 1.2 V regulation - no external resistors are required or supported. The '120' in the part number explicitly denotes the 1.2 V version. This eliminates BOM cost, layout complexity, and potential drift from resistor tolerances, making it ideal for high-volume automotive applications where design simplicity and test repeatability are essential.
How does the active discharge feature function in NCV8170AXV120T2G?
When the EN pin is driven low (≤0.4 V), the NCV8170AXV120T2G activates an internal 100 Ω discharge path between OUT and GND, pulling the output voltage to ground in under 1 ms. This feature eliminates the need for external bleed resistors and ensures predictable power-down behavior - especially important in systems with multiple power domains where uncontrolled VOUT decay could cause latch-up or data corruption.
Can NCV8170AXV120T2G operate with input voltages below 2.2 V?
No - the absolute minimum operating input voltage for NCV8170AXV120T2G is 2.2 V, as specified in the Absolute Maximum Ratings and Electrical Characteristics tables. Operation below this threshold may result in loss of regulation, increased dropout, or undefined behavior. For sub-2.2 V inputs, a different regulator family (e.g., onsemi NCP160 series) would be required.
Is NCV8170AXV120T2G compatible with 10 µF ceramic output capacitors?
Yes - the NCV8170AXV120T2G is explicitly characterized and guaranteed stable with ceramic output capacitors ranging from 1.0 µF to 10 µF, including X5R and X7R dielectrics. Unlike many older LDOs, it imposes no minimum ESR requirement, allowing use of low-ESR, high-reliability MLCCs without risk of oscillation - simplifying design and improving long-term robustness in automotive environments.
NCV8170AXV120T2G 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):
- 1.2V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 0.9 µA
- Current - Supply (Max):
- -
- PSRR:
- 63dB ~ 57dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-563
NCV8170AXV120T2G FAQ
1.How can I place an order for NCV8170AXV120T2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8170AXV120T2G 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 NCV8170AXV120T2G reliable?
The price and inventory of NCV8170AXV120T2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8170AXV120T2G is usually 5 days.
3.What payment methods are accepted for NCV8170AXV120T2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8170AXV120T2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8170AXV120T2G?
NCV8170AXV120T2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8170AXV120T2G 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 NCV8170AXV120T2G?
For technical support, including NCV8170AXV120T2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8170AXV120T2G requirements.
6.How does Aetrix verify that NCV8170AXV120T2G is sourced from the original manufacturer or authorized distributors?
All NCV8170AXV120T2G 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 NCV8170AXV120T2G meets industry standards.
7.What is the process for return or replacement of NCV8170AXV120T2G?
All NCV8170AXV120T2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV8170AXV120T2G, 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 NCV8170AXV120T2G part is unused and in its original packaging.
Return procedure for NCV8170AXV120T2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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