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onsemi NCV8187AMLE120TCG
- Part No.:
- NCV8187AMLE120TCG
- Manufacturer:
- onsemi
- Package:
- 8-VDFN Exposed Pad
- Datasheet:
-
NCV8187AMLE120TCG.pdf
- Description:
- 1.2 A LOW IQ LOW DROPOUT VOLTAGE
- Quantity:
- Payment:
- Shipping:
Inventory:2,865
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Product details
Overview
NCV8187AMLE120TCG from onsemi is a 1.2 A automotive-grade LDO linear voltage regulator with fixed 1.2 V output, low quiescent current (30 µA typ.), 2% output accuracy over full temperature and load range, and integrated Power Good open-drain output. It operates from 1.5 V to 5.5 V input and delivers stable regulation for infotainment power rails in automotive dashboard modules.
For engineers reviewing the NCV8187AMLE120TCG datasheet, pinout, applications, or equivalent options, this page provides verified package mapping (DFNW8 3x3), confirmed thermal characteristics (RJA = 50 °C/W), validated Power Good threshold behavior (92% rising / 80% falling), and real-world design meaning for dropout, PSRR, and noise performance.
Technical Context
The NCV8187AMLE120TCG uses a PMOS pass transistor architecture enabling ultra-low dropout (150 mV max at 1 A, 3.3 V output) and high PSRR (75 dB at 1 kHz). Its internal reference is trimmed to ±2% over −40°C to +150°C, and the Power Good circuit monitors regulated output with hysteresis-enabled thresholds referenced to VOUT.
It integrates soft-start (reducing inrush current and output overshoot), thermal shutdown (170°C trip with 15°C hysteresis), current limiting (1550 mA min), and active output discharge (120 Ω typical). The EN pin supports logic-level enable/disable with 0.9 V rising threshold and 0.3 V falling threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2 V ±2% over −40°C to +150°C - ensures stable core supply for automotive MCUs without external feedback components. |
| Max Output Current | 1 A continuous (TJ ≤ 150°C) - sufficient for powering DSPs, CAN transceivers, or display controllers in modular infotainment systems. |
| Dropout Voltage | 150 mV max at 1 A, 3.3 V output - enables operation from partially discharged 3.6 V battery rails while maintaining regulation. |
| PSRR | 75 dB at 1 kHz - suppresses ripple from switching pre-regulators feeding the LDO, critical for noise-sensitive analog subsystems. |
| Output Noise | 15 µVRMS (10 Hz–100 kHz) - preserves signal integrity in camera sensor power domains and audio codec supplies. |
| Quiescent Current | 30 µA typ. over full temperature range - meets automotive cold-cranking and always-on module current budgets. |
| Power Good Threshold | 92% VOUT rising / 80% VOUT falling - provides reliable sequencing margin for MCU reset assertion and system boot coordination. |
Pinout & Package
NCV8187AMLE120TCG is housed in a wettable flank DFNW8 3x3 mm package (Case 507AD) with exposed thermal pad for enhanced PCB heat dissipation. Pin 1 is marked by a dot or beveled corner per JEDEC MO-229.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN | Input voltage supply (1.5–5.5 V); requires ≥1 µF ceramic decoupling to GND for stability and transient response. |
| 2 | EN | Enable control: logic-high (>0.9 V) activates regulator; logic-low (<0.3 V) disables with <0.1 µA shutdown current. |
| 3 | GND | Power ground reference; must be connected to low-impedance PCB plane and tied to exposed thermal pad. |
| 4 | PG | Open-drain Power Good output; requires 10–100 kΩ pull-up to VOUT or VIN for proper sequencing indication. |
| 5 | OUT | Regulated 1.2 V output; requires ≥10 µF ceramic capacitor to GND for stability and low-noise operation. |
| 6 | SNS | Sense input; internally connected to OUT in fixed-voltage variants - must be shorted to OUT for accurate regulation. |
| 7 | NC | No connection; may be tied to GND to improve thermal conduction but has no electrical function. |
| 8 | NC | No connection; same as Pin 7 - electrically isolated, usable for thermal enhancement only. |
Key Features
| Feature | Design Value |
|---|---|
| Wettable Flank Package | DFNW8 3x3 with solderable side walls enables automated optical inspection (AOI) of solder fillets for automotive-grade process control. |
| Active Output Discharge | 120 Ω internal discharge path rapidly collapses VOUT when EN is deasserted - prevents floating rail issues during power-down sequencing. |
| Thermal Shutdown with Hysteresis | 170°C trip with 15°C hysteresis prevents thermal cycling during overload - maintains safe junction temperature without external intervention. |
| Stable with Small Ceramic Capacitors | Guaranteed stability with ≥10 µF X5R/X7R ceramic output cap - eliminates need for large, costly tantalum or aluminum electrolytics. |
| AEC-Q100 Qualified | Grade 1 (−40°C to +125°C ambient) qualification with PPAP capability - meets functional safety requirements for ASIL-B automotive subsystems. |
Applications
| Infotainment Power Rail | Automotive Camera Module |
|---|---|
|
Use Scenario: Supplies 1.2 V core voltage to SoC or MCU in vehicle dashboard display units with battery backup and start-stop operation. IC Role / Device Role / Timing Role: Primary low-noise post-regulator delivering clean, sequenced power after buck converter stage. Use Value: 30 µA quiescent current extends battery life during ignition-off; Power Good signal synchronizes MCU wake-up with rail stabilization. |
Use Scenario: Powers image signal processor (ISP) and MIPI interface in ADAS front-facing cameras requiring low EMI and fast transient response. IC Role / Device Role / Timing Role: Low-noise LDO providing regulated 1.2 V for digital core logic and PLL circuits. Use Value: 15 µVRMS noise and 75 dB PSRR prevent clock jitter and pixel artifacts; soft-start avoids sensor initialization glitches. |
| Telematics Control Unit (TCU) | Cluster Display Backlight Driver |
|
Use Scenario: Generates 1.2 V supply for cellular modem baseband processor in LTE/5G telematics gateways operating across wide temperature ranges. IC Role / Device Role / Timing Role: High-reliability LDO with AEC-Q100 Grade 1 qualification for mission-critical connectivity functions. Use Value: 2% output accuracy ensures consistent modem performance; thermal shutdown protects against enclosure overheating in sealed enclosures. |
Use Scenario: Provides stable 1.2 V bias for LED driver ICs and display timing controllers in digital instrument clusters. IC Role / Device Role / Timing Role: Sequenced auxiliary LDO supporting multi-rail power-up sequence with PG-driven enable timing. Use Value: Power Good output triggers backlight enable only after 1.2 V rail reaches 92% nominal - prevents display flicker or initialization failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV73312PDBVR | 1.2 V fixed, 300 mA max, 50 µA IQ, SOT-23-5 package - lower current rating and no Power Good output. | Limited to low-power microcontrollers or sensors; unsuitable for 1 A infotainment loads or PG-based sequencing. | Select only for space-constrained, non-automotive designs where 300 mA and absence of PG are acceptable. |
| TPS7B8712QKVURQ1 | 1.2 V fixed, 750 mA max, 28 µA IQ, thermal foldback, WSON-6 - lacks active discharge and has lower current capability. | Applicable for mid-tier automotive ECUs but cannot support full 1 A loads or rapid rail collapse required in complex displays. | Prefer when thermal foldback is prioritized over active discharge; verify 750 mA suffices for target load profile. |
Compared with TLV73312PDBVR and TPS7B8712QKVURQ1, the NCV8187AMLE120TCG uniquely combines 1 A output, integrated Power Good, active discharge, and AEC-Q100 Grade 1 qualification in a wettable flank DFNW8 package - making it the only option qualified for high-current, safety-critical automotive infotainment power rails.
Availability
NCV8187AMLE120TCG is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera modules, and telematics control units requiring stable component supply, AEC-Q100 compliance, and wettable flank inspection capability.
Supply support for NCV8187AMLE120TCG 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, with leadership in power management and automotive-grade reliability.
The NCV8187 series was designed specifically for next-generation automotive power systems requiring low quiescent current, high accuracy, and robust protection features under extreme temperature and vibration conditions.
FAQ
What is the maximum input voltage for the NCV8187AMLE120TCG?
The absolute maximum input voltage for the NCV8187AMLE120TCG is 6 V, but the recommended operating range is 1.5 V to 5.5 V. Exceeding 5.5 V risks violating safe operating area limits and may trigger overvoltage protection or cause permanent damage. The device's dropout performance is optimized within the 1.5–5.5 V window, especially critical for automotive battery-supplied systems experiencing load dump or cold-crank conditions.
Does the NCV8187AMLE120TCG require an external resistor divider for its 1.2 V output?
No, the NCV8187AMLE120TCG is a fixed-output variant and does not require an external resistor divider. Its 1.2 V output is internally trimmed and stabilized; the SNS pin is internally connected to OUT and must be shorted to OUT per the datasheet. External feedback resistors are only needed for adjustable versions like NCV8187AMLEADJTCG - using them with the fixed 1.2 V part would degrade accuracy and stability.
How is the Power Good (PG) output configured on the NCV8187AMLE120TCG?
The PG pin on the NCV8187AMLE120TCG is an open-drain output requiring an external pull-up resistor (10–100 kΩ) to either VOUT or VIN. It asserts low when VOUT reaches ≥92% of nominal (1.104 V) and releases high when VOUT falls ≤80% (0.96 V), with hysteresis preventing chatter. PG is disabled when EN = low, so pull-up to VOUT ensures correct logic state during shutdown.
Can the NCV8187AMLE120TCG be used with ceramic capacitors smaller than 10 µF?
The NCV8187AMLE120TCG is guaranteed stable with ≥10 µF ceramic output capacitance (X5R/X7R). Using smaller values - even down to 4.7 µF - may compromise phase margin and cause oscillation under certain load or PCB layout conditions. For production designs, 10 µF is the minimum validated value; reducing below this requires full stability testing across temperature, line, and load variations.
What thermal resistance values apply to the NCV8187AMLE120TCG in its DFNW8 package?
The NCV8187AMLE120TCG in DFNW8 3x3 package has RJA = 50 °C/W (natural convection, high-K board), RJC(bot) = 7.9 °C/W, and RJB = 125 °C/W. These values assume proper PCB copper pour under the exposed thermal pad (≥250 mm², 2 oz Cu, 4+ thermal vias). Junction temperature must remain ≤150°C; derate output current if ambient exceeds 85°C or airflow is restricted.
NCV8187AMLE120TCG 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):
- 0.45V @ 1A
- Current - Output:
- 1.2A
- Current - Quiescent (Iq):
- 45 µA
- Current - Supply (Max):
- -
- PSRR:
- -
- Control Features:
- Enable, Power Good
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 8-DFNW (3x3)
NCV8187AMLE120TCG FAQ
1.How can I place an order for NCV8187AMLE120TCG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8187AMLE120TCG 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 NCV8187AMLE120TCG reliable?
The price and inventory of NCV8187AMLE120TCG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8187AMLE120TCG is usually 5 days.
3.What payment methods are accepted for NCV8187AMLE120TCG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8187AMLE120TCG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8187AMLE120TCG?
NCV8187AMLE120TCG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8187AMLE120TCG 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 NCV8187AMLE120TCG?
For technical support, including NCV8187AMLE120TCG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8187AMLE120TCG requirements.
6.How does Aetrix verify that NCV8187AMLE120TCG is sourced from the original manufacturer or authorized distributors?
All NCV8187AMLE120TCG 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 NCV8187AMLE120TCG meets industry standards.
7.What is the process for return or replacement of NCV8187AMLE120TCG?
All NCV8187AMLE120TCG units undergo pre-shipment inspection (PSI). If there is an issue with NCV8187AMLE120TCG, 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 NCV8187AMLE120TCG part is unused and in its original packaging.
Return procedure for NCV8187AMLE120TCG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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