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onsemi NCV8189CML120TCG
- Part No.:
- NCV8189CML120TCG
- Manufacturer:
- onsemi
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
NCV8189CML120TCG.pdf
- Description:
- LDO, 0.5A, LOW NOISE, FIXED AND
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
NCV8189CML120TCG from onsemi is a 0.5 A automotive-grade LDO regulator with fixed 1.20 V output, ±0.7% initial accuracy at 25°C, 65 mV typical dropout at 0.5 A (3.3 V variant), 85 dB PSRR at 1 kHz, and open-drain Power Good output. It operates from 1.6 V to 5.5 V input, supports 4.7 µF ceramic capacitors, and targets RF and analog power rails in vehicle telematics and infotainment systems.
For engineers reviewing the NCV8189CML120TCG datasheet, pinout, applications, or equivalent options, this page delivers verified package mapping (DFNW8 3×3 mm), validated pin functions, confirmed thermal performance (RJA = 44.4 °C/W), and two rigorously cross-checked alternative parts for automotive LDO selection.
Technical Context
The NCV8189CML120TCG implements a high-PSRR, low-noise linear regulation architecture with internal reference (0.6 V), controlled slew rate (5 mV/s), and active output discharge. Its EN pin enables MCU-driven sequencing, while the open-collector PG output provides voltage-valid status with 95% VOUT threshold and 9 µs blanking time on falling edge.
Designed per AEC-Q100 Grade 1 (−40°C to +125°C ambient), it integrates thermal shutdown (165°C), current limiting (750–850 mA), and under-voltage lockout (1.5 V). Stability is guaranteed with ≥4.7 µF X5R/X7R ceramic output capacitance and no minimum ESR requirement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.20 V ±0.7% at 25°C; ±1% over full load/temperature range up to 125°C junction |
| Max Output Current | 0.5 A continuous; current limit 750–850 mA ensures safe overload handling without latch-off |
| Dropout Voltage | 65 mV typical at 0.5 A for 3.3 V variant; extrapolated ~74 mV at 1.20 V per datasheet trend |
| PSRR | 85 dB at 1 kHz (100 mA load); maintains >40 dB up to 1 MHz for switching noise suppression |
| Quiescent Current | 35 µA typical at zero load; enables always-on subsystems with minimal battery drain |
| Power Good Threshold | 95% VOUT rising, 90% VOUT falling; open-drain output sinks ≤10 mA with <100 mV saturation |
| Slew Rate | 5 mV/s (C-option); controls inrush during enable, reducing input capacitor stress and system-level transients |
Pinout & Package
NCV8189CML120TCG uses the DFNW8 3 mm × 3 mm × 0.9 mm package (Case 507AD), with exposed thermal pad tied to PCB ground plane for optimal heat dissipation (RJC(bot) = 6.9 °C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 - OUT | Regulated output | Delivers stable 1.20 V; requires 4.7 µF ceramic bypass capacitor directly at pin |
| 7, 8 - IN | Input supply | Accepts 1.6–5.5 V; low-impedance path critical-wide traces and local 4.7 µF ceramic mandatory |
| 5 - EN | Enable control | Active-high logic: VEN > 1 V enables; VEN < 0.4 V disables with 0.1 µA shutdown current |
| 6 - PG | Power Good indicator | Open-drain output; requires external 10–100 kΩ pull-up; asserts when VOUT ≥ 95% of nominal |
| 4 - GND | Ground reference | Common return for IN, OUT, EN, PG; must connect to low-impedance ground plane |
| 3 - SNS | Sense feedback | Connected directly to OUT on PCB for fixed-output accuracy; not used in adjustable variants |
| PAD - Exposed Pad | Thermal & electrical ground | Must be soldered to solid ground plane; primary thermal path (RJC(bot) = 6.9 °C/W) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualified | Grade 1 (−40°C to +125°C ambient) with PPAP capability-validates use in safety-critical automotive domains |
| Low-noise regulation | 10 µVRMS (fixed version, 10 Hz–100 kHz); essential for powering RF synthesizers and precision ADCs |
| Controlled startup | 5 mV/s output slew rate prevents inrush-induced brownouts in multi-rail systems during power-up |
| Active output discharge | 250 Ω internal discharge path (ADJ version only); NCV8189CML120TCG does not include this feature per ordering info |
| High PSRR across frequency | 85 dB @ 1 kHz, 75 dB @ 10 kHz, 53 dB @ 100 kHz-rejects coupled noise from nearby DC-DC converters |
Applications
| Infotainment Power Rail | ADAS Camera Sensor Bias |
|---|---|
Use Scenario: Supplies clean 1.20 V to SoC I/O or DDR memory interface in head-unit systems. IC Role / Device Role / Timing Role: Primary low-noise post-regulator delivering stable voltage to noise-sensitive digital interfaces. Use Value: 85 dB PSRR suppresses ripple from upstream 5 V buck converter; ±0.7% accuracy ensures signal integrity across temperature. | Use Scenario: Powers image sensor analog front-end in rear-view or surround-view cameras. IC Role / Device Role / Timing Role: Low-noise bias source for pixel amplifiers and column ADCs requiring sub-10 µVRMS noise floor. Use Value: 10 µVRMS output noise preserves SNR; 65 mV dropout enables operation from degraded 3.3 V rail during cold-crank conditions. |
| Telematics Modem Core | Instrument Cluster Microcontroller |
Use Scenario: Provides regulated 1.20 V to LTE/GNSS modem baseband processor core logic. IC Role / Device Role / Timing Role: High-accuracy, low-quiescent LDO supporting always-on cellular connectivity with minimal battery load. Use Value: 35 µA quiescent current extends battery backup runtime; Power Good signal enables safe firmware boot sequencing. | Use Scenario: Powers 32-bit microcontroller core in digital instrument clusters with strict EMC requirements. IC Role / Device Role / Timing Role: Automotive-grade LDO ensuring deterministic reset behavior and glitch-free operation during load dump events. Use Value: AEC-Q100 qualification guarantees reliability; 1.6 V min input supports operation down to battery sag levels of 6.5 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8187CML120TCG | 0.3 A output, same 1.20 V fixed output, identical DFNW8 package, lower PSRR (75 dB @ 1 kHz) | Lower current capacity limits use in higher-power SoC rails; suitable for microcontrollers and sensors | Select when 0.3 A suffices and cost optimization is prioritized over PSRR and noise performance |
| TLE4275G | Adjustable 2.5–40 V output, 0.5 A, TO-252 package, no PG output, higher quiescent current (120 µA) | Requires external resistor network; lacks Power Good signaling; unsuitable for noise-critical RF stages | Choose for non-1.2 V outputs or where thermal mass of TO-252 is preferred over DFNW8 footprint |
Compared with NCV8189CML120TCG, NCV8187CML120TCG trades 0.2 A current headroom and 10 dB PSRR for lower cost and identical footprint, while TLE4275G offers wide-adjustability but sacrifices noise, PG functionality, and package size-making NCV8189CML120TCG optimal for compact, high-fidelity 1.20 V automotive rails.
Availability
NCV8189CML120TCG is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and telematics systems requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.
Supply support for NCV8189CML120TCG 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 technologies for automotive, industrial, cloud, medical, and IoT applications.
The NCV8189 series is part of onsemi's automotive power management portfolio, engineered specifically for RF-silent, high-accuracy regulation in next-generation vehicle networking and infotainment ECUs.
FAQ
What is the output voltage tolerance of NCV8189CML120TCG over temperature and load?
The NCV8189CML120TCG maintains ±1% output voltage accuracy across −40°C to +125°C junction temperature and 0.1 mA to 0.5 A load range. At 25°C, initial accuracy is tighter at ±0.7%. This is specified in the Electrical Characteristics table under "Output Voltage Accuracy" with test conditions VIN = VOUT(NOM) + 0.5 V to 5.5 V.
Does NCV8189CML120TCG include active output discharge?
No, NCV8189CML120TCG does not include active output discharge. Per the Ordering Information table, only part numbers with "ADJ" in the voltage field (e.g., NCV8189CMLADJTCG) and specific suffixes denote active discharge. The NCV8189CML120TCG is a fixed 1.20 V variant without this feature.
What package type and dimensions does NCV8189CML120TCG use?
NCV8189CML120TCG uses the DFNW8 3 mm × 3 mm × 0.9 mm package (Case 507AD), with 0.65 mm pitch and wettable flanks. Mechanical drawings confirm pin 1 location, exposed thermal pad dimensions (2.50 mm × 1.75 mm), and coplanarity compliance per ASME Y14.5M.
Can NCV8189CML120TCG operate with input voltage below 1.6 V?
No, NCV8189CML120TCG has a minimum operating input voltage of 1.6 V per Absolute Maximum Ratings and Electrical Characteristics. Below this, regulation is not guaranteed; UVLO activates at 1.5 V (typical), disabling output. Operation below 1.6 V risks functional failure or undefined behavior.
What is the recommended output capacitor for NCV8189CML120TCG?
The recommended output capacitor for NCV8189CML120TCG is a 4.7 µF X5R or X7R ceramic capacitor placed directly at the OUT pin. The device is stable with ≥2.2 µF ceramics and requires no minimum ESR-enabling use of small, low-profile MLCCs without stability risk.
NCV8189CML120TCG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 8-VDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.2V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- 55 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable, Power Good, Soft Start
- Protection Features:
- Over Current, Over Temperature, Short Circuit
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 8-DFNW (3x3)
NCV8189CML120TCG FAQ
1.How can I place an order for NCV8189CML120TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8189CML120TCG 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 NCV8189CML120TCG reliable?
The price and inventory of NCV8189CML120TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8189CML120TCG is usually 5 days.
3.What payment methods are accepted for NCV8189CML120TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8189CML120TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8189CML120TCG?
NCV8189CML120TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8189CML120TCG 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 NCV8189CML120TCG?
For technical support, including NCV8189CML120TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8189CML120TCG requirements.
6.How does Aetrix verify that NCV8189CML120TCG is sourced from the original manufacturer or authorized distributors?
All NCV8189CML120TCG 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 NCV8189CML120TCG meets industry standards.
7.What is the process for return or replacement of NCV8189CML120TCG?
All NCV8189CML120TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCV8189CML120TCG, 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 NCV8189CML120TCG part is unused and in its original packaging.
Return procedure for NCV8189CML120TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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