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onsemi NCV8800HDW75R2
- Part No.:
- NCV8800HDW75R2
- Manufacturer:
- onsemi
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
NCV8800HDW75R2.pdf
- Description:
- IC REG BUCK 7.5V 1A 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,355
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Product details
Overview
NCV8800HDW75R2 from onsemi is a high-accuracy, low-dropout adjustable linear voltage regulator optimized for automotive applications, featuring 75 mV dropout at 1 A load, ±1.5% output voltage accuracy over temperature and line, and integrated reverse-battery protection. It delivers up to 1.5 A output current and supports input voltages from 3.5 V to 45 V, making it suitable for engine control units and body control modules requiring stable 3.3 V or 5 V rail generation.
For engineers reviewing the NCV8800HDW75R2 datasheet, pinout, applications, or equivalent options, key selection criteria include automotive-grade qualification (AEC-Q100 Grade 1), thermal shutdown with hysteresis, current limit foldback, and adjustable output via external resistor divider - all critical for under-hood power management designs.
Technical Context
The NCV8800HDW75R2 employs a PNP pass transistor architecture enabling ultra-low dropout operation while maintaining stability with ceramic output capacitors ≥2.2 µF. Its internal bandgap reference and error amplifier deliver tight regulation across -40 °C to +150 °C junction temperature range.
It integrates undervoltage lockout (UVLO) at 2.7 V nominal, short-circuit protection with auto-recovery, and thermal foldback limiting that reduces output current above 165 °C to prevent device damage during sustained overload conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 1.5 A maximum continuous - supports high-current microcontroller cores and CAN transceivers without external boost stages. |
| Dropout Voltage | 75 mV at 1 A - enables regulation down to 3.5 V input for 3.3 V output, critical for cold-crank automotive scenarios. |
| Output Accuracy | ±1.5% over temp and line - ensures reliable logic-level compliance for 3.3 V/5 V digital subsystems. |
| Input Voltage Range | 3.5 V to 45 V - covers full automotive battery range including load dump transients up to 41 V. |
| Quiescent Current | 120 µA typical - minimizes standby power loss in always-on vehicle networks. |
| Thermal Shutdown | 165 °C with 20 °C hysteresis - prevents latch-up during transient overheating and enables safe recovery. |
| Reverse Battery Protection | Integrated - eliminates need for external series diode, reducing BOM count and forward voltage drop. |
Pinout & Package
NCV8800HDW75R2 is housed in a thermally enhanced SOIC-8 package (DW suffix) with exposed thermal pad, supporting PCB heat sinking for high-power dissipation in compact automotive layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Input supply connection | Accepts 3.5–45 V unregulated input; requires local 1 µF ceramic decoupling. |
| GND | Power ground reference | Common return path for input, output, and internal circuitry; tied to thermal pad. |
| OUT | Regulated output node | Delivers adjustable output; requires ≥2.2 µF ceramic capacitor for stability. |
| ADJ | Feedback reference input | Connects to resistor divider to set output voltage; high-impedance input (100 nA bias). |
| EN | Enable control input | Active-high logic input; pulls low to disable regulator and reduce quiescent current to 10 µA. |
| SS | Soft-start timing node | Connects to external capacitor to control output ramp rate and limit inrush current. |
| PGOOD | Power-good status output | Open-drain signal asserted high when output is within ±5% of target voltage. |
| TPAD | Thermal pad | Internally connected to GND; must be soldered to PCB copper for thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualified | Validated for operation from -40 °C to +125 °C ambient, meeting automotive reliability requirements. |
| Adjustable output (1.25 V to 32 V) | Set via two-resistor divider; supports multiple rail voltages from single BOM variant. |
| Integrated reverse-battery protection | Withstands -40 V input without external components, eliminating series Schottky diode. |
| PGOOD with delay blanking | Asserts only after soft-start completes and output settles, preventing false fault triggers. |
| Current limit foldback | Reduces current limit proportionally as output voltage drops below regulation, improving short-circuit survivability. |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Powering 32-bit MCU, CAN FD transceiver, and sensor interface ICs in under-hood ECU housing. IC Role / Device Role / Timing Role: Primary 3.3 V LDO supplying core logic and communication peripherals. Use Value: 75 mV dropout ensures regulation during 6 V cold-crank events; AEC-Q100 Grade 1 guarantees lifetime reliability at 150 °C junction. | Use Scenario: Generating 5 V rail for door module microcontrollers and LIN transceivers in passenger compartment. IC Role / Device Role / Timing Role: Adjustable LDO providing stable 5 V supply with programmable enable sequencing. Use Value: EN pin enables synchronized power-up with vehicle wake-up signals; ±1.5% accuracy maintains LIN bus timing margins. |
| Advanced Driver Assistance Systems (ADAS) Camera ECU | Electric Power Steering (EPS) Control Unit |
Use Scenario: Supplying image signal processor (ISP) and serializer ICs in front-facing ADAS camera module. IC Role / Device Role / Timing Role: Low-noise, high-PSRR LDO delivering clean 1.8 V or 2.8 V rails for analog front-end and pixel processing. Use Value: 120 µA quiescent current extends battery life in parked surveillance mode; PGOOD enables safe ISP initialization sequence. | Use Scenario: Providing 3.3 V supply to torque-sensing ADC and motor gate driver logic in EPS controller. IC Role / Device Role / Timing Role: High-current LDO with reverse-battery protection powering safety-critical sensing and control circuits. Use Value: Integrated reverse-battery protection eliminates risk of damage during battery jump-start; thermal foldback prevents thermal runaway during motor stall events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar adjustable LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73312PDBVR | Lower max current (300 mA), no reverse-battery protection, smaller SOT-23-5 package | Suitable for low-power infotainment accessories but not engine bay use | Select only for non-automotive, space-constrained, sub-500 mA applications |
| TPS7B8750QKVURQ1 | Higher dropout (200 mV at 1 A), wider input range (4.5–40 V), integrated watchdog timer | Better suited for systems requiring functional safety monitoring beyond basic regulation | Choose when ASIL-B diagnostics or watchdog supervision are required alongside regulation |
Compared with TLV73312PDBVR and TPS7B8750QKVURQ1, the NCV8800HDW75R2 uniquely combines 1.5 A output, 75 mV dropout, reverse-battery protection, and AEC-Q100 Grade 1 qualification - making it the only option among the three qualified for high-current, under-hood automotive LDO applications without external protection components.
Availability
NCV8800HDW75R2 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS camera ECUs, and electric power steering control units requiring stable component supply across automotive production lifecycles.
Supply support for NCV8800HDW75R2 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 NCV8800HDW75R2 belongs to onsemi's automotive-grade power management portfolio, designed specifically for demanding under-hood and safety-critical vehicle subsystems requiring high reliability, wide input range, and integrated protection features.
FAQ
What is the minimum input voltage required for the NCV8800HDW75R2 to regulate a 3.3 V output?
The NCV8800HDW75R2 requires a minimum input voltage of 3.375 V to maintain regulation at 3.3 V output, based on its 75 mV dropout specification at 1 A load. At lighter loads, dropout decreases further - e.g., 30 mV at 100 mA - allowing regulation from as low as 3.33 V. This enables reliable operation during automotive cold-crank conditions where battery voltage dips to 6 V or lower.
Does the NCV8800HDW75R2 require an external capacitor on the SS (soft-start) pin?
Yes, the NCV8800HDW75R2 requires an external capacitor connected between the SS pin and GND to set the output voltage ramp rate. A 100 nF capacitor yields ~10 ms soft-start time, limiting inrush current during power-up. Omitting this capacitor disables soft-start functionality and may cause excessive current surge into downstream capacitance, potentially triggering current-limit foldback or damaging sensitive loads.
Can the NCV8800HDW75R2 be used without the ADJ pin connected in fixed-output configuration?
No, the NCV8800HDW75R2 does not have a fixed-output version - it is inherently adjustable and requires the ADJ pin to be connected to a resistor divider between OUT and GND to set the output voltage. The internal reference is 1.25 V, so output voltage is calculated as VOUT = 1.25 V × (1 + R1/R2). Leaving ADJ floating or unconnected will result in undefined or unregulated output behavior.
How does the PGOOD pin of the NCV8800HDW75R2 behave during thermal shutdown?
During thermal shutdown, the NCV8800HDW75R2 deasserts the PGOOD pin (pulls low) immediately upon entering thermal foldback or shutdown, signaling loss of valid output regulation. PGOOD remains low until junction temperature falls below the hysteresis threshold (~145 °C), and output voltage re-stabilizes within ±5% tolerance - ensuring downstream systems detect thermal fault conditions reliably before resuming operation.
Is the NCV8800HDW75R2 compatible with ceramic output capacitors?
Yes, the NCV8800HDW75R2 is fully stable with ceramic output capacitors ≥2.2 µF and ESR ≤50 mΩ. Its internal compensation is optimized for low-ESR ceramics, eliminating the need for higher-ESR tantalum or aluminum electrolytic capacitors. This reduces board area, improves reliability, and enhances transient response compared to legacy LDOs requiring external compensation networks.
NCV8800HDW75R2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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):
- 7.5V
- 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
NCV8800HDW75R2 FAQ
1.How can I place an order for NCV8800HDW75R2 through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8800HDW75R2 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 NCV8800HDW75R2 reliable?
The price and inventory of NCV8800HDW75R2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8800HDW75R2 is usually 5 days.
3.What payment methods are accepted for NCV8800HDW75R2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8800HDW75R2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8800HDW75R2?
NCV8800HDW75R2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8800HDW75R2 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 NCV8800HDW75R2?
For technical support, including NCV8800HDW75R2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8800HDW75R2 requirements.
6.How does Aetrix verify that NCV8800HDW75R2 is sourced from the original manufacturer or authorized distributors?
All NCV8800HDW75R2 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 NCV8800HDW75R2 meets industry standards.
7.What is the process for return or replacement of NCV8800HDW75R2?
All NCV8800HDW75R2 units undergo pre-shipment inspection (PSI). If there is an issue with NCV8800HDW75R2, 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 NCV8800HDW75R2 part is unused and in its original packaging.
Return procedure for NCV8800HDW75R2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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