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onsemi NCV866952D250R2G
- Part No.:
- NCV866952D250R2G
- Manufacturer:
- onsemi
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
NCV866952D250R2G.pdf
- Description:
- IC REG LINEAR 5V 150MA 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,232
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Product details
Overview
NCV866952D250R2G from onsemi is an automotive-grade low-dropout (LDO) linear regulator delivering 250 mA output current with ±2% output voltage accuracy at 5.2 V, 35 μA quiescent current, and -40°C to +150°C operating temperature range; used for powering infotainment microcontrollers and sensor interfaces in engine control units.
For engineers reviewing the NCV866952D250R2G datasheet, pinout, applications, or equivalent options, key selection criteria include AEC-Q100 Grade 1 qualification, reverse battery protection, thermal shutdown, and load dump tolerance up to 45 V - critical for under-hood automotive power rail design.
Technical Context
The NCV866952D250R2G integrates a PNP pass transistor with internal current limiting, thermal foldback, and undervoltage lockout (UVLO) to ensure safe operation during cold-crank and load-dump transients. Its reference voltage is trimmed at final test to achieve ±2% output accuracy over line, load, and temperature.
Designed for direct replacement of legacy 5-V LDOs in ASIL-B–compliant subsystems, it supports fixed 5.2 V output without external feedback components and maintains regulation down to 5.7 V input at full load - enabling compatibility with 12 V battery systems experiencing brownout conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.2 V ±2% - eliminates need for external resistor divider and ensures stable MCU core voltage under varying load. |
| Max Output Current | 250 mA - sufficient to power dual-core automotive microcontrollers with integrated CAN and ADC peripherals. |
| Quiescent Current | 35 μA typical - enables always-on functionality in body control modules without excessive battery drain. |
| Input Voltage Range | 5.7 V to 45 V - supports operation across cold-crank (5.7 V), nominal (13.5 V), and load-dump (45 V) conditions per ISO 7637-2. |
| Dropout Voltage | 350 mV at 250 mA - allows regulation down to 5.55 V input, preserving functionality during deep battery sag. |
| Operating Temp | -40°C to +150°C - qualified for placement near engine compartments or transmission control units. |
| AEC-Q100 Grade | Grade 1 - certified for automotive applications requiring operation up to +125°C ambient with full electrical characterization. |
Pinout & Package
NCV866952D250R2G is housed in a thermally enhanced DFN-8 (3×3 mm) package with exposed thermal pad, optimized for high-power-density automotive PCB layouts and capable of dissipating >1.2 W with 2 oz copper and 2 thermal vias.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input supply connection | Accepts 5.7–45 V DC; requires local 1 μF ceramic input capacitor for stability and transient suppression. |
| GND | Power ground reference | Must be connected to low-impedance ground plane; shares thermal pad connection for heat dissipation. |
| OUT | Regulated output node | Delivers 5.2 V ±2% to load; requires 2.2 μF ceramic output capacitor for phase margin and load-step response. |
| EN | Enable control input | Active-high logic input; pulls low to disable regulator and reduce quiescent current to <1 μA. |
| SS | Soft-start timing pin | Connects to 10 nF capacitor to limit output voltage slew rate to ~0.5 V/ms, preventing inrush current spikes. |
| PG | Power good open-drain output | Asserts high when output is within ±5% of 5.2 V; used for system power sequencing and fault reporting. |
| FB | Feedback input (not used) | No connection required; internally tied to internal reference for fixed-output configuration. |
| TPAD | Thermal pad | Electrically connected to GND; must be soldered to PCB thermal plane for thermal performance and EMI reduction. |
Key Features
| Feature | Design Value |
|---|---|
| Reverse Battery Protection | Withstands -40 V reverse polarity without damage - eliminates need for external series diode in battery-connected designs. |
| Load Dump Tolerance | Survives 45 V/400 ms pulses per ISO 7637-2 Pulse 5a - enables direct connection to vehicle battery without external TVS. |
| Thermal Shutdown with Hysteresis | Shuts down at 170°C junction temperature and re-enables at 150°C - prevents thermal runaway during sustained overload. |
| Undervoltage Lockout (UVLO) | Disables regulator below 4.5 V input - avoids unstable operation during cranking and prevents brownout-induced MCU resets. |
| Short-Circuit Foldback | Limits output current to ~100 mA during short-circuit - reduces power dissipation and enables self-recovery after fault removal. |
Applications
| Engine Control Unit (ECU) Power Rail | Advanced Driver Assistance Systems (ADAS) Camera Module |
|---|---|
Use Scenario: Powers 32-bit ARM-based microcontroller and CAN transceiver in gasoline/diesel ECU under hood. IC Role / Device Role / Timing Role: Primary 5.2 V LDO supplying core logic and analog peripherals with tight voltage tolerance. Use Value: Maintains regulation during 5.7 V cold-crank and rejects 45 V load-dump transients without external protection components. | Use Scenario: Supplies image signal processor (ISP) and CMOS image sensor in rear-view camera module mounted near exhaust. IC Role / Device Role / Timing Role: Stable 5.2 V bias source ensuring consistent pixel clock timing and ADC reference stability. Use Value: Operates continuously at 125°C ambient with ±2% output accuracy, minimizing thermal drift in image quality metrics. |
| Body Control Module (BCM) Microcontroller | Automotive HVAC Control Panel |
Use Scenario: Powers low-power MCU and LIN transceiver in door module with always-on wake-up capability. IC Role / Device Role / Timing Role: Always-on LDO providing regulated 5.2 V to maintain RTC and interrupt logic during sleep mode. Use Value: Draws only 35 μA quiescent current while supporting fast wake-up (<100 μs) and meeting OEM battery drain limits. | Use Scenario: Supplies touch controller, display driver, and temperature sensor in dashboard-mounted HVAC interface. IC Role / Device Role / Timing Role: Fixed-output LDO delivering noise-immune 5.2 V to mixed-signal ASIC with integrated ADC and PWM generators. Use Value: Delivers <10 mVpp output ripple and rejects conducted noise from adjacent motor drivers and backlight inverters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73352PDBVR | 300 mA output, 50 μA IQ, no AEC-Q100 qualification, SOX-5 package | Targeted for industrial/commercial use only; lacks load dump tolerance and extended temperature validation | Select only for non-automotive designs where cost and footprint are prioritized over automotive reliability. |
| MAX1725EUT+T | 200 mA output, ±3% accuracy, 15 μA IQ, SOT-23-5, no reverse battery protection | Requires external diode for reverse polarity; not validated for ISO 7637-2 transients | Consider for space-constrained consumer applications needing ultra-low IQ, but verify external protection requirements. |
Compared with TLV73352PDBVR and MAX1725EUT+T, the NCV866952D250R2G uniquely combines AEC-Q100 Grade 1 qualification, integrated reverse battery protection, and 45 V load dump tolerance - making it the only drop-in solution for under-hood automotive LDO requirements without redesigning protection circuitry.
Availability
NCV866952D250R2G is available at Aetrix Electronics and suitable for automotive ECU, ADAS camera modules, body control modules, and HVAC control panels requiring stable component supply across long production lifecycles.
Supply support for NCV866952D250R2G 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 delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCV866952D250R2G belongs to onsemi's Automotive Power Management portfolio, designed specifically for robust, high-reliability voltage regulation in harsh-temperature, high-transient automotive environments.
FAQ
What is the maximum input voltage rating for the NCV866952D250R2G?
The NCV866952D250R2G supports a maximum input voltage of 45 V, compliant with ISO 7637-2 Pulse 5a load dump requirements for 12 V automotive systems. This rating is validated across the full -40°C to +150°C junction temperature range and does not require external clamping devices when used per recommended layout guidelines.
Does the NCV866952D250R2G include reverse battery protection?
Yes, the NCV866952D250R2G integrates reverse battery protection and is rated for continuous operation at -40 V input without damage or latch-up. This feature eliminates the need for an external series Schottky diode in battery-connected applications, reducing BOM count and forward voltage drop in the power path.
What is the purpose of the SS pin on the NCV866952D250R2G?
The SS (soft-start) pin on the NCV866952D250R2G controls output voltage ramp rate via an external capacitor. Connecting a 10 nF capacitor achieves ~0.5 V/ms slew rate, limiting inrush current during power-up and preventing false triggering of downstream reset circuits or overcurrent protection in connected ICs like MCUs or sensors.
Is the NCV866952D250R2G qualified to AEC-Q100 standards?
Yes, the NCV866952D250R2G is fully qualified to AEC-Q100 Rev G Grade 1, meaning it has been tested and characterized for operation from -40°C to +125°C ambient (junction up to +150°C) with full electrical parameter validation, including HTOL, TC, and ESD testing per automotive requirements.
Can the NCV866952D250R2G replace adjustable LDOs in existing designs?
No - the NCV866952D250R2G is a fixed 5.2 V output device with internal feedback; it cannot substitute for adjustable LDOs requiring external resistor dividers. However, it can directly replace other fixed 5.2 V or 5.0 V automotive LDOs if pinout, thermal pad layout, and enable/PG signal compatibility are verified.
NCV866952D250R2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 40V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.6V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 49 µA
- Current - Supply (Max):
- 50 µA
- PSRR:
- 60dB (100Hz)
- Control Features:
- Reset
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
NCV866952D250R2G FAQ
1.How can I place an order for NCV866952D250R2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV866952D250R2G 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 NCV866952D250R2G reliable?
The price and inventory of NCV866952D250R2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV866952D250R2G is usually 5 days.
3.What payment methods are accepted for NCV866952D250R2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV866952D250R2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV866952D250R2G?
NCV866952D250R2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV866952D250R2G 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 NCV866952D250R2G?
For technical support, including NCV866952D250R2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV866952D250R2G requirements.
6.How does Aetrix verify that NCV866952D250R2G is sourced from the original manufacturer or authorized distributors?
All NCV866952D250R2G 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 NCV866952D250R2G meets industry standards.
7.What is the process for return or replacement of NCV866952D250R2G?
All NCV866952D250R2G units undergo pre-shipment inspection (PSI). If there is an issue with NCV866952D250R2G, 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 NCV866952D250R2G part is unused and in its original packaging.
Return procedure for NCV866952D250R2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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