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onsemi NCV8160BMX180TBG
- Part No.:
- NCV8160BMX180TBG
- Manufacturer:
- onsemi
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
NCV8160BMX180TBG.pdf
- Description:
- IC REG LINEAR 1.8V 250MA 4XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,362
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Product details
Overview
NCV8160BMX180TBG from onsemi is an automotive-grade ultra-low-noise, high-PSRR LDO regulator delivering 250 mA output at fixed 1.8 V with ±2% accuracy over −40°C to +125°C. It features 90 mV dropout at full load, 10 µVRMS output noise (10 Hz–100 kHz), and 98 dB PSRR at 1 kHz-designed specifically for RF and analog circuits in ADAS and infotainment systems.
For engineers reviewing the NCV8160BMX180TBG datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 Grade 1 qualification, non-active-discharge configuration, XDFN4 1 mm × 1 mm package, and compatibility with 1 µF ceramic input/output capacitors without external compensation.
Technical Context
The NCV8160BMX180TBG uses a PMOS pass transistor architecture enabling low dropout and reverse-current protection via inherent body diode behavior. Its bandgap reference and integrated soft-start ensure stable startup under varying load conditions while thermal shutdown (160°C trip, 140°C reset) and current limiting (700 mA typ.) provide robust fault protection.
Unlike Version A, this B-version omits active output discharge-EN pin assertion disables regulation but leaves OUT floating. Its enable logic requires VEN < 0.4 V for disable and > 1.2 V for enable, with internal 200 nA pull-down ensuring default-off behavior when unconnected.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8 V ±2% over −40°C to +125°C-ensures stable core voltage for 1.8 V logic and RF ICs without external feedback. |
| Max Output Current | 250 mA continuous-supports power delivery to multiple low-power analog/RF blocks in compact automotive modules. |
| Dropout Voltage | 90 mV at 250 mA (VOUT = 1.8 V)-enables operation from 1.9 V input, critical for battery-supplied systems near end-of-life. |
| Output Noise | 10 µVRMS (10 Hz–100 kHz)-minimizes phase noise in VCOs and SNR degradation in ADCs and receivers. |
| PSRR | 98 dB at 1 kHz-suppresses switching noise from upstream DC-DC converters feeding sensitive RF/analog stages. |
| Quiescent Current | 18 µA typ.-extends battery life in always-on automotive subsystems such as telematics wake-up circuits. |
| Enable Threshold | VENH = 1.2 V, VENL = 0.4 V-compatible with standard CMOS logic and microcontroller GPIOs without level-shifting. |
Pinout & Package
XDFN4 package (Case 711AJ), 1.0 mm × 1.0 mm × 0.4 mm, with exposed thermal pad (EPAD) for enhanced heat dissipation. Pin 1 = OUT, Pin 2 = GND, Pin 3 = EN, Pin 4 = IN. EPAD must be connected to ground plane per PCB layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 1) | Regulated output | Delivers stable 1.8 V; requires 1 µF ceramic capacitor placed adjacent to pin for stability and transient response. |
| GND (Pin 2) | Ground reference | Common return path for load, input, and internal circuitry; connects to EPAD for optimal thermal performance. |
| EN (Pin 3) | Enable control input | Logic-level interface: <0.4 V disables regulator (non-active discharge); >1.2 V enables regulation; internal 200 nA pull-down ensures safe default-off state. |
| IN (Pin 4) | Input supply | Accepts 1.9–5.5 V; must be decoupled with 1 µF ceramic capacitor close to pin to suppress high-frequency noise and support load transients. |
| EPAD | Thermal & electrical ground | Exposed copper pad beneath package; soldering to large GND copper area reduces RθJA to 198.1°C/W and improves reliability in high-ambient environments. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise regulation | 10 µVRMS output noise enables clean power for GHz-range RF front-ends and precision analog signal chains. |
| High PSRR across frequency | 98 dB at 1 kHz and 82 dB at 10 kHz suppresses ripple from switching regulators without additional filtering stages. |
| Automotive qualification | AEC-Q100 Grade 1 (−40°C to +125°C) and PPAP-capable-validates suitability for safety-critical ADAS and cluster applications. |
| Minimal external components | Stable with only two 1 µF X7R/X5R ceramic capacitors-reduces BOM count, board space, and cost in space-constrained modules. |
| Robust protection suite | Integrated thermal shutdown (160°C), current limit (700 mA typ.), and short-circuit immunity-eliminates need for external protection circuitry. |
Applications
| ADAS Camera Module Power | Infotainment SoC Core Rail |
|---|---|
Use Scenario: Powers image sensor and ISP in rear-view or surround-view camera modules operating in vehicle cabin or exterior environments. IC Role / Device Role / Timing Role: Provides ultra-low-noise 1.8 V supply to CIS pixel array and analog front-end, minimizing fixed-pattern noise and temporal noise. Use Value: 10 µVRMS noise and 98 dB PSRR prevent switching artifacts from DC-DC converters from degrading image SNR and dynamic range. | Use Scenario: Supplies 1.8 V core voltage to application processors or DSPs in automotive infotainment head units. IC Role / Device Role / Timing Role: Delivers tightly regulated, low-noise power to processor I/O and memory interfaces during burst-mode operation. Use Value: 90 mV dropout allows sustained operation down to 1.9 V input-critical during cold-crank battery dips-and 250 mA capacity supports multi-core wake states. |
| Telematics Cellular Modem Bias | Cluster Instrumentation Analog Subsystem |
Use Scenario: Powers LTE/NB-IoT modem RF transceivers and baseband ICs in vehicle telematics control units (TCUs). IC Role / Device Role / Timing Role: Low-noise 1.8 V rail for RF synthesizers and ADC/DAC blocks, reducing EVM degradation and improving sensitivity. Use Value: 10 µVRMS noise and high PSRR maintain cellular link margin in electrically noisy vehicle harness environments with shared power domains. | Use Scenario: Supplies analog sensors (e.g., temperature, pressure) and display driver ICs in digital instrument clusters with TFT-LCD or OLED displays. IC Role / Device Role / Timing Role: Stable 1.8 V reference for precision ADCs measuring gauge signals and backlight LED drivers requiring ripple-free bias. Use Value: ±2% output accuracy over temperature ensures consistent sensor readings and display brightness calibration across automotive ambient ranges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8160AMX180TBG | Identical specs except includes active output discharge (280 Ω pull-down on OUT during disable) | Required where fast output discharge prevents back-powering or latch-up in multi-rail systems | Select NCV8160AMX180TBG only if active discharge is needed; otherwise NCV8160BMX180TBG reduces standby leakage. |
| TLD1128-33ES | Lower max current (150 mA), higher dropout (170 mV @ 150 mA), no AEC-Q100 Grade 1 rating | Suitable for non-safety-critical industrial or consumer applications-not qualified for automotive front-end modules | Choose TLD1128-33ES only for cost-sensitive non-automotive designs; NCV8160BMX180TBG remains mandatory for AEC-Q100-compliant systems. |
Compared with NCV8160AMX180TBG, the NCV8160BMX180TBG eliminates active discharge to reduce shutdown current to 10 nA typ., improving battery hold-up time; versus TLD1128-33ES, it delivers higher current, lower noise, and full automotive qualification-making it the sole fit for ADAS and cluster power rails.
Availability
NCV8160BMX180TBG is available at Aetrix Electronics and suitable for ADAS camera modules, infotainment SoC core rails, and telematics modem biasing requiring stable component supply, AEC-Q100 compliance, and ultra-low-noise regulation.
Supply support for NCV8160BMX180TBG 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 (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient electronics for automotive, industrial, cloud, and IoT applications.
The NCV8160BMX180TBG belongs to onsemi's automotive-qualified LDO portfolio, engineered specifically for noise-sensitive RF and analog subsystems in ADAS, infotainment, and telematics-prioritizing PSRR, output stability, and thermal resilience.
FAQ
What is the maximum input voltage rating for the NCV8160BMX180TBG?
The NCV8160BMX180TBG has an absolute maximum input voltage of 6 V. However, its recommended operating input voltage range is 1.9 V to 5.5 V. Operation above 5.5 V risks permanent damage, and design margins should maintain VIN ≤ 5.5 V under all conditions including transients. The NCV8160BMX180TBG integrates overvoltage protection only up to its absolute rating-external clamping is advised if system-level surges exceed 6 V.
Does the NCV8160BMX180TBG include active output discharge functionality?
No, the NCV8160BMX180TBG does not include active output discharge. This is the defining distinction between the "B" and "A" versions: NCV8160BMX180TBG disables regulation when EN is low but leaves the OUT pin floating, whereas the A-version pulls OUT to GND via a 280 Ω internal resistor. The NCV8160BMX180TBG achieves lower shutdown current (10 nA typ.) by omitting this feature.
What ceramic capacitor dielectric is recommended for use with the NCV8160BMX180TBG?
The NCV8160BMX180TBG datasheet specifies X7R or X5R dielectric for both input (CIN) and output (COUT) capacitors. These dielectrics maintain stable capacitance across temperature (±15% for X7R, ±15% for X5R) and DC bias-critical for sustaining 1 µF effective value under 1.8 V bias and −40°C to +125°C operation. Avoid Y5V or Z5U due to excessive capacitance loss at temperature extremes or bias.
How does the NCV8160BMX180TBG handle thermal overload conditions?
The NCV8160BMX180TBG incorporates thermal shutdown with a trip threshold of 160°C (typ.) and hysteresis reset at 140°C (typ.). When junction temperature exceeds 160°C, the device disables regulation and halts output current until temperature falls below 140°C. This protects against catastrophic failure but is not a substitute for proper thermal design-the NCV8160BMX180TBG requires adequate PCB copper area and EPAD grounding to maintain TJ ≤ 125°C under full load.
Is the NCV8160BMX180TBG compatible with 0201-size 1 µF ceramic capacitors?
Yes, the NCV8160BMX180TBG is explicitly designed to operate stably with 0201-size 1 µF X7R/X5R ceramic capacitors, as confirmed in the Applications Information section. Its internal compensation accommodates the reduced effective capacitance of small-case MLCCs under DC bias and temperature-enabling ultra-compact layouts in space-constrained automotive modules where the NCV8160BMX180TBG is commonly deployed.
NCV8160BMX180TBG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 4-XDFN Exposed Pad
- 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):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.25V @ 250mA
- Current - Output:
- 250mA
- Current - Quiescent (Iq):
- 23 µA
- Current - Supply (Max):
- -
- PSRR:
- 91dB ~ 48dB (100Hz ~ 100kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-XDFN (1x1)
NCV8160BMX180TBG FAQ
1.How can I place an order for NCV8160BMX180TBG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8160BMX180TBG 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 NCV8160BMX180TBG reliable?
The price and inventory of NCV8160BMX180TBG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8160BMX180TBG is usually 5 days.
3.What payment methods are accepted for NCV8160BMX180TBG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8160BMX180TBG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8160BMX180TBG?
NCV8160BMX180TBG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8160BMX180TBG 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 NCV8160BMX180TBG?
For technical support, including NCV8160BMX180TBG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8160BMX180TBG requirements.
6.How does Aetrix verify that NCV8160BMX180TBG is sourced from the original manufacturer or authorized distributors?
All NCV8160BMX180TBG 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 NCV8160BMX180TBG meets industry standards.
7.What is the process for return or replacement of NCV8160BMX180TBG?
All NCV8160BMX180TBG units undergo pre-shipment inspection (PSI). If there is an issue with NCV8160BMX180TBG, 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 NCV8160BMX180TBG part is unused and in its original packaging.
Return procedure for NCV8160BMX180TBG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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