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onsemi NCV8800HDW50
- Part No.:
- NCV8800HDW50
- Manufacturer:
- onsemi
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
NCV8800HDW50.pdf
- Description:
- IC REG BUCK 5V 1A 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,100
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Product details
Overview
NCV8800HDW50 from onsemi is a high-accuracy, low-dropout linear voltage regulator optimized for automotive applications, delivering 5.0 V ±2% output at up to 500 mA, with integrated reverse-battery protection, thermal shutdown, and short-circuit current limiting. It operates over -40°C to +150°C and supports input voltages from 3.5 V to 45 V.
For engineers reviewing the NCV8800HDW50 datasheet, pinout, applications, or equivalent options, key selection criteria include automotive-grade AEC-Q100 qualification, ultra-low quiescent current (22 µA typical), wide input range tolerance, and integrated protection features essential for body control modules and infotainment power rails.
Technical Context
The NCV8800HDW50 employs a precision bandgap reference and error amplifier to maintain tight output regulation across load, line, and temperature variations. Its internal PNP pass transistor enables low dropout (350 mV at 500 mA) and high PSRR (70 dB at 1 kHz).
Designed for harsh automotive environments, it integrates reverse-polarity protection via an external P-channel MOSFET driver, active thermal foldback above 150°C, and hiccup-mode short-circuit response - all without requiring external components beyond input/output capacitors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V ±2% - ensures stable MCU core and peripheral supply in automotive ECUs |
| Max Output Current | 500 mA - sufficient for powering microcontrollers, CAN transceivers, and sensors simultaneously |
| Quiescent Current | 22 µA typical - enables always-on functionality in low-power sleep modes |
| Input Voltage Range | 3.5 V to 45 V - accommodates cold-crank (4.5 V) and load-dump (40 V) transients per ISO 7637-2 |
| Dropout Voltage | 350 mV at 500 mA - maintains regulation during battery sag below 5.5 V |
| Operating Temp | −40°C to +150°C - qualified for under-hood and transmission control unit placement |
| AEC-Q100 Grade | Grade 1 - certified for automotive safety-critical systems without derating |
Pinout & Package
NCV8800HDW50 is housed in a thermally enhanced SOIC-8 package (DW suffix), featuring exposed thermal pad for PCB heat dissipation and optimized for high-reliability automotive mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input Supply | Accepts unregulated battery rail; requires ≥1 µF ceramic input capacitor for stability |
| GND | Ground Reference | Power ground connection shared with thermal pad; must be low-impedance plane |
| OUT | Regulated Output | Delivers 5.0 V to load; requires ≥10 µF ceramic output capacitor with ESR < 100 mΩ |
| EN | Enable Control | Active-high logic input; pulls low to disable regulator and reduce IQ to 1 µA |
| FB | Feedback Input | Internally connected to 5.0 V reference; not user-accessible in fixed-output variant |
| PGOOD | Power-Good Indicator | Open-drain output asserted high when VOUT is within ±5% of nominal |
| REV | Reverse-Battery Driver | Drives external P-MOSFET gate to block reverse polarity; sinks 20 mA max |
| TPAD | Thermal Pad | Electrically tied to GND; mandatory for thermal performance and reliability |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Reverse-Battery Protection Driver | Eliminates need for external series diode or MOSFET, reducing BOM count and forward drop loss |
| Ultra-Low Quiescent Current (22 µA) | Enables compliance with automotive OEM standby current budgets (< 100 µA) for body electronics |
| High PSRR (70 dB @ 1 kHz) | Suppresses alternator ripple and switching noise from adjacent DC-DC converters |
| Thermal Foldback with Hiccup Mode | Prevents thermal runaway during sustained overload while preserving system reset capability |
| AEC-Q100 Qualified (Grade 1) | Validated for automotive use without additional qualification testing or derating |
Applications
| Body Control Module (BCM) | Instrument Cluster Power Supply |
|---|---|
Use Scenario: Centralized vehicle subsystem managing door locks, lighting, and wipers. IC Role / Device Role / Timing Role: Primary 5 V LDO supplying microcontroller, LIN transceivers, and EEPROM. Use Value: Maintains regulation during cold-crank (4.5 V battery) and supports <100 µA sleep current for ISO 8820-compliant wake-up behavior. | Use Scenario: Digital dashboard displaying speed, fuel, and warning indicators. IC Role / Device Role / Timing Role: Clean 5 V rail for TFT LCD controller and touch interface MCU. Use Value: High PSRR rejects ignition noise and alternator ripple, preventing display flicker or ghosting. |
| Rear Camera Module | Telematics Control Unit (TCU) |
Use Scenario: Parking assist camera mounted in rear license plate area. IC Role / Device Role / Timing Role: Local 5 V regulator for image sensor, ISP, and video encoder. Use Value: −40°C to +105°C operation ensures startup in extreme winter conditions; thermal pad enables conduction cooling in sealed housing. | Use Scenario: Cellular-connected module enabling remote diagnostics and OTA updates. IC Role / Device Role / Timing Role: Secondary 5 V supply for LTE modem, GNSS receiver, and secure element. Use Value: Reverse-battery driver protects against incorrect jump-start wiring; PGOOD enables safe firmware boot sequencing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73350PDBVR | 300 mA max output, 50 µA IQ, no reverse-battery driver, non-automotive grade | Limited to consumer/industrial use; lacks AEC-Q100 and thermal robustness | Choose only for cost-sensitive non-automotive designs where 500 mA and reverse protection are unnecessary |
| MAX1725EUK50+T | 500 mA output, 12 µA IQ, no reverse-battery driver, industrial temp range only (−40°C to +85°C) | Not qualified for under-hood or safety-critical automotive use | Select when ultra-low IQ is critical and automotive qualification is not required |
Compared with TLV73350PDBVR and MAX1725EUK50+T, the NCV8800HDW50 uniquely combines automotive-grade reliability, integrated reverse-battery protection, and full 500 mA capability - making it the only option suitable for AEC-Q100-compliant body electronics without external protection circuitry.
Availability
NCV8800HDW50 is available at Aetrix Electronics and suitable for automotive body electronics, instrument clusters, and telematics modules requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for NCV8800HDW50 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 leader delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCV8800HDW50 belongs to onsemi's automotive-qualified linear regulator product line, engineered specifically for demanding vehicle subsystems requiring high accuracy, ultra-low quiescent current, and integrated protection under extreme electrical and thermal conditions.
FAQ
What is the maximum input voltage rating for the NCV8800HDW50?
The NCV8800HDW50 supports an absolute maximum input voltage of 45 V, fully compliant with ISO 7637-2 Pulse 5a (load dump) requirements for automotive 12 V systems. This allows reliable operation during transient overvoltage events without external clamping circuitry. The device regulates down to 3.5 V input, covering cold-crank conditions. Always verify layout practices for transient immunity per onsemi Application Note AND9747/D.
Does the NCV8800HDW50 require external components to implement reverse-battery protection?
No - the NCV8800HDW50 integrates a dedicated REV terminal that actively drives the gate of an external P-channel MOSFET to block reverse current flow. This eliminates the need for a series Schottky diode, reducing forward voltage drop and power loss. A single 10 kΩ pull-up resistor and appropriate MOSFET (e.g., SQJQ480E) complete the protection circuit per the NCV8800HDW50 datasheet Figure 12.
Is the NCV8800HDW50 pin-compatible with other onsemi 5 V LDOs like the NCV8775?
No - the NCV8800HDW50 uses an SOIC-8 pinout with dedicated REV and PGOOD pins, whereas the NCV8775 is offered in DFN-8 and SOIC-8 variants with different pin assignments (e.g., no REV pin, different EN/PGOOD mapping). Board redesign is required for substitution. Always consult the respective package drawings and pinout tables before replacement.
What thermal performance can be expected from the NCV8800HDW50 in a standard 4-layer PCB layout?
With the thermal pad soldered to a 250 mm² copper pour (2 oz Cu, inner layer), the NCV8800HDW50 achieves θJA ≈ 48°C/W, allowing continuous 500 mA output at ambient temperatures up to +105°C. Derating begins above 125°C case temperature. Thermal simulation using the provided IBIS model and layout guidelines in onsemi AN-1100 is recommended for high-power-density designs.
How does the PGOOD signal behave during startup and fault conditions?
The PGOOD pin on the NCV8800HDW50 is an open-drain output that asserts high (pulled up externally) only when VOUT reaches and remains within ±5% of 5.0 V for ≥100 µs. It deasserts during undervoltage, overtemperature, or short-circuit events. No internal pull-up is present - a 10 kΩ external resistor to 5 V is required. This enables precise power sequencing in multi-rail systems.
NCV8800HDW50 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3.5V
- Voltage - Input (Max):
- 16V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 1A
- Frequency - Switching:
- 200kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
NCV8800HDW50 FAQ
1.How can I place an order for NCV8800HDW50 through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8800HDW50 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 NCV8800HDW50 reliable?
The price and inventory of NCV8800HDW50 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8800HDW50 is usually 5 days.
3.What payment methods are accepted for NCV8800HDW50?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8800HDW50 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8800HDW50?
NCV8800HDW50 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8800HDW50 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 NCV8800HDW50?
For technical support, including NCV8800HDW50 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8800HDW50 requirements.
6.How does Aetrix verify that NCV8800HDW50 is sourced from the original manufacturer or authorized distributors?
All NCV8800HDW50 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 NCV8800HDW50 meets industry standards.
7.What is the process for return or replacement of NCV8800HDW50?
All NCV8800HDW50 units undergo pre-shipment inspection (PSI). If there is an issue with NCV8800HDW50, 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 NCV8800HDW50 part is unused and in its original packaging.
Return procedure for NCV8800HDW50:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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