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onsemi NCV8160BMX280TBG
- Part No.:
- NCV8160BMX280TBG
- Manufacturer:
- onsemi
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
NCV8160BMX280TBG.pdf
- Description:
- IC REG LINEAR 2.8V 250MA 4XDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,185
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Product details
Overview
NCV8160BMX280TBG from onsemi is an automotive-grade ultra-low-noise, high-PSRR LDO regulator delivering 250 mA output current at a fixed 2.8 V output. It features 90 mV dropout at full load, ±2% output accuracy over −40°C to +125°C, and 10 µVRMS integrated noise (10 Hz–100 kHz), designed specifically for RF and analog power rails in ADAS and infotainment systems.
For engineers reviewing the NCV8160BMX280TBG datasheet, pinout, applications, or equivalent options, key selection criteria include its AEC-Q100 Grade 1 qualification, non-active-discharge configuration (Version B), XDFN4 1 mm × 1 mm package, and compatibility with 1 µF ceramic input/output capacitors without external compensation.
Technical Context
The NCV8160BMX280TBG employs a PMOS pass transistor architecture enabling ultra-low dropout and reverse-current protection via inherent body diode behavior. Its bandgap reference and integrated soft-start ensure stable startup under varying load and line conditions.
Unlike Version A, this B variant omits active output discharge - EN assertion below 0.4 V disables regulation but leaves OUT floating, eliminating the 280 Ω discharge path. Thermal shutdown (160°C trip, 140°C release) and current limiting (700 mA typ.) operate across the full −40°C to +125°C junction range without derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8 V ±2% over −40°C to +125°C - ensures stable bias for RF transceivers and ADC references. |
| Max Output Current | 250 mA continuous - supports multi-rail analog subsystems without thermal throttling on standard PCB layouts. |
| Dropout Voltage | 90 mV at 250 mA - enables operation from 2.89 V input, critical for battery-supplied 3.3 V rail down-conversion. |
| PSRR | 98 dB at 1 kHz - suppresses switching noise from adjacent DC/DC converters feeding sensitive RF front-ends. |
| Output Noise | 10 µVRMS (10 Hz–100 kHz) - meets stringent phase-noise requirements for local oscillator supplies. |
| Quiescent Current | 18 µA typ. - extends battery life in always-on vehicle telematics modules. |
| Enable Threshold | VENH = 1.2 V, VENL = 0.4 V - compatible with 1.8 V/3.3 V GPIO control without level-shifting. |
Pinout & Package
XDFN4 package (Case 711AJ), 1.0 mm × 1.0 mm × 0.4 mm, with exposed thermal pad (EPAD) tied to GND for enhanced thermal performance. Pin 1 = OUT, Pin 2 = GND, Pin 3 = EN, Pin 4 = IN.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 1) | Regulated output | Delivers 2.8 V to load; requires 1 µF ceramic capacitor placed adjacent to pin for stability and transient response. |
| GND (Pin 2) | Power ground | Common return path; must be connected to EPAD and system ground plane to minimize thermal resistance and noise coupling. |
| EN (Pin 3) | Enable control input | Logic-high (>1.2 V) enables regulation; logic-low (<0.4 V) disables output (no active discharge in Version B). |
| IN (Pin 4) | Input supply | Accepts 1.9–5.5 V; internal PMOS structure blocks reverse current if VOUT > VIN. |
| EPAD | Thermal & electrical ground | Exposed pad must be soldered to ≥25 mm² copper area for RJA ≤ 198.1°C/W and reliable 250 mA operation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low noise output | 10 µVRMS (10 Hz–100 kHz) - preserves signal integrity in low-phase-noise RF synthesizers. |
| High PSRR at 1 kHz | 98 dB - rejects ripple from buck converters powering adjacent digital ICs. |
| Automotive qualification | AEC-Q100 Grade 1 (−40°C to +125°C TJ) - certified for engine bay and dashboard electronics. |
| Stable with minimal capacitance | Works with 1 µF X7R/X5R ceramic caps - reduces BOM count and board space vs. legacy LDOs requiring 10+ µF. |
| Low dropout at full load | 90 mV @ 250 mA - enables use with single-cell Li-ion (3.0 V min) or post-regulated 3.3 V rails. |
Applications
| ADAS Camera Module Power | Infotainment SoC Core Rail |
|---|---|
Use Scenario: Powers image signal processor (ISP) and CMOS sensor analog front-end in rear-view camera systems. IC Role / Device Role / Timing Role: Provides clean 2.8 V bias for sensor pixel array and analog-to-digital conversion circuitry. Use Value: 10 µVRMS noise prevents fixed-pattern noise in captured video; 98 dB PSRR isolates ISP from display backlight switching noise. | Use Scenario: Supplies 2.8 V to audio codec and touch controller in automotive head unit. IC Role / Device Role / Timing Role: Low-noise LDO for mixed-signal peripherals requiring stable reference voltage. Use Value: ±2% accuracy maintains DAC linearity across temperature; 18 µA quiescent current minimizes standby drain. |
| Telematics Cellular Modem RF Supply | Cluster Instrument Panel LCD Bias |
Use Scenario: Delivers regulated 2.8 V to LTE/5G transceiver RF section in vehicle connectivity modules. IC Role / Device Role / Timing Role: Ultra-low-noise power source for RF power amplifier bias and PLL VCO supply. Use Value: 90 mV dropout allows operation during cold-crank (battery dip to 6.5 V); AEC-Q100 Grade 1 ensures reliability over 15-year vehicle life. | Use Scenario: Generates 2.8 V for LCD column driver and gamma correction circuitry in digital instrument clusters. IC Role / Device Role / Timing Role: Precision voltage source for grayscale voltage generation in TFT displays. Use Value: Load regulation of 0.005%/mA prevents brightness flicker during display content changes; 1.9–5.5 V input range accommodates wide battery voltage swings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8160AMX280TBG | Includes active output discharge (280 Ω path to GND when disabled); otherwise identical specs and pinout. | Required where fast output discharge is needed to prevent back-powering or sequencing conflicts in multi-rail systems. | Select NCV8160AMX280TBG only if active discharge is mandated by system-level power sequencing requirements. |
| TPS7A2028PDBVR | Lower IQ (6.5 µA), same 250 mA rating, but not AEC-Q100 qualified; PSRR peaks at 80 dB @ 1 kHz. | Suitable for non-automotive industrial or consumer applications where automotive qualification is unnecessary. | Choose TPS7A2028PDBVR for cost-sensitive non-automotive designs needing lower quiescent current, but verify PSRR margin for RF use cases. |
Compared with NCV8160BMX280TBG, the A-version adds active discharge at no penalty to noise or PSRR, while the TPS7A2028PDBVR trades automotive qualification and RF-grade PSRR for ultra-low IQ - making each alternative optimal only within its specific system context.
Availability
NCV8160BMX280TBG is available at Aetrix Electronics and suitable for ADAS camera modules, infotainment SoC power domains, and telematics cellular modem RF supplies requiring stable component supply across extended temperature and automotive lifecycle requirements.
Supply support for NCV8160BMX280TBG 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, and IoT applications.
The NCV8160 series is part of onsemi's automotive power management portfolio, engineered specifically for noise-sensitive RF and analog circuits in safety-critical vehicle systems.
FAQ
What is the maximum input voltage rating for the NCV8160BMX280TBG?
The NCV8160BMX280TBG has an absolute maximum input voltage of 6 V. Operation above 5.5 V violates recommended conditions and risks permanent damage. For sustained operation, VIN must remain between 1.9 V and 5.5 V per the datasheet's Recommended Operating Conditions table.
Does the NCV8160BMX280TBG include active output discharge functionality?
No. The NCV8160BMX280TBG is the Version B variant and does not include active output discharge. When EN is pulled low, the output floats. Only the A-version (e.g., NCV8160AMX280TBG) provides the 280 Ω discharge path to GND.
What ceramic capacitor dielectric is recommended for use with the NCV8160BMX280TBG?
X7R or X5R dielectric capacitors are explicitly recommended for both CIN and COUT in the NCV8160BMX280TBG datasheet. These dielectrics maintain stable capacitance across temperature and DC bias, ensuring consistent regulation and transient response.
Can the NCV8160BMX280TBG be used with a 0.7 µF output capacitor?
Yes. The NCV8160BMX280TBG remains stable with a minimum effective output capacitance of 0.7 µF, accounting for capacitance loss due to DC bias and temperature effects - especially relevant for small-case 0201 X7R capacitors.
Is thermal shutdown protection included in the NCV8160BMX280TBG?
Yes. The NCV8160BMX280TBG incorporates thermal shutdown with a typical trip threshold of 160°C and reset hysteresis of 20°C (re-enables at ~140°C). This protection operates across the full −40°C to +125°C junction temperature range and is independent of input voltage or load conditions.
NCV8160BMX280TBG 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):
- 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.16V @ 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)
NCV8160BMX280TBG FAQ
1.How can I place an order for NCV8160BMX280TBG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8160BMX280TBG 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 NCV8160BMX280TBG reliable?
The price and inventory of NCV8160BMX280TBG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8160BMX280TBG is usually 5 days.
3.What payment methods are accepted for NCV8160BMX280TBG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8160BMX280TBG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8160BMX280TBG?
NCV8160BMX280TBG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8160BMX280TBG 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 NCV8160BMX280TBG?
For technical support, including NCV8160BMX280TBG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8160BMX280TBG requirements.
6.How does Aetrix verify that NCV8160BMX280TBG is sourced from the original manufacturer or authorized distributors?
All NCV8160BMX280TBG 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 NCV8160BMX280TBG meets industry standards.
7.What is the process for return or replacement of NCV8160BMX280TBG?
All NCV8160BMX280TBG units undergo pre-shipment inspection (PSI). If there is an issue with NCV8160BMX280TBG, 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 NCV8160BMX280TBG part is unused and in its original packaging.
Return procedure for NCV8160BMX280TBG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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