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onsemi NCV8720BMT135TBG
- Part No.:
- NCV8720BMT135TBG
- Manufacturer:
- onsemi
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
NCV8720BMT135TBG.pdf
- Description:
- IC REG LINEAR 1.35V 350MA 6WDFN
- Quantity:
- Payment:
- Shipping:
Inventory:58,800
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Product details
Overview
NCV8720BMT135TBG from onsemi is an automotive-grade 350 mA very low dropout (VLDO) linear regulator with NMOS pass transistor and separate VBIAS supply, delivering 1.35 V ±2% output accuracy over −40 °C to +125 °C, 110 mV typical dropout at full load, and ultra-low 80 µA bias current - designed for FPGA core power, camera sensor rails, and post-regulation in battery-powered ADAS modules.
For engineers reviewing the NCV8720BMT135TBG datasheet, pinout, applications, or equivalent options, key selection criteria include dual-rail operation (VIN/VBIAS), wettable-flank WDFN6 package compatibility with automated optical inspection, AEC-Q100 Grade 1 qualification, and stable regulation with 2.2 µF ceramic output capacitance.
Technical Context
The NCV8720BMT135TBG implements a dual-input NMOS-based VLDO architecture where VIN supplies the pass element and VBIAS powers internal control circuitry independently - enabling ultra-low dropout (110 mV @ 350 mA) and high PSRR (70 dB @ 1 kHz on VBIAS) without compromising stability across temperature. Its built-in soft-start ensures monotonic VOUT rise and limits inrush current to 100 mA + ILOAD.
Internal protection includes undervoltage lockout (UVLO = 1.6 V on VBIAS with 0.2 V hysteresis), thermal shutdown (trip at +160 °C, reset at +140 °C), and current limiting (420–1000 mA). The enable pin features logic-level thresholds (VEN(HI) = 1.1 V, VEN(LO) ≤ 0.4 V) and draws only 0.3–2.0 µA, supporting low-power sequencing in multi-rail systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.35 V - factory-programmed; enables precise core voltage delivery for 1.35 V FPGA I/O or DSP subsystems. |
| Max Output Current | 350 mA continuous - sufficient for powering multiple low-voltage logic blocks or image sensor analog front-ends. |
| VIN Dropout Voltage | 110 mV typical @ 350 mA - allows operation down to VIN = 1.46 V while maintaining 1.35 V output, critical for battery brownout resilience. |
| VBIAS Dropout Voltage | 1.15 V typical @ 350 mA - requires VBIAS ≥ 2.5 V (≥ VOUT + 1.4 V), decoupling bias rail design from main input constraints. |
| Output Accuracy | ±2% over −40 °C to +125 °C - meets tight tolerance requirements for automotive microcontroller core supplies. |
| PSRR (VBIAS) | 70 dB @ 1 kHz - suppresses noise from shared bias rails, essential for noise-sensitive ADC reference or PLL supply domains. |
| Shutdown Current | 0.5 µA typical @ −40 °C to +85 °C - minimizes quiescent drain during system sleep modes in always-on vehicle modules. |
| Thermal Resistance | RJA = 65 °C/W - achievable with standard 2-layer PCB layout using exposed thermal pad soldered to ground plane. |
Pinout & Package
NCV8720BMT135TBG is housed in a Pb-free WDFN6 2 mm × 2 mm package (Case 511BR) with wettable flanks for enhanced optical inspection and solder joint reliability. The exposed thermal pad must be soldered to the PCB ground plane to achieve rated thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Regulated output voltage node | Delivers stable 1.35 V to load; connects directly to local 2.2 µF ceramic capacitor with minimal trace inductance. |
| 2 - N/C | No internal connection | Must remain unconnected; no routing or copper pour required - avoids unintended parasitic coupling. |
| 3 - EN | Logic-enable control input | Active-high (≥1.1 V); ties to MCU GPIO or power sequencer; floating or unconnected defaults to enabled state. |
| 4 - BIAS | Bias supply for internal control circuitry | Requires clean, low-impedance ≥2.5 V source; monitored by UVLO; decouples regulation stability from VIN fluctuations. |
| 5 - GND | Analog/digital ground reference | Common return for IN, OUT, BIAS, and EN; must connect directly to thermal pad and low-impedance ground plane. |
| 6 - IN | Main input voltage supply | Accepts 0.8–5.5 V; feeds NMOS pass transistor; dropout minimized when VIN ≥ VOUT + 0.11 V. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-rail NMOS architecture | Separates power path (VIN → OUT) from control logic supply (VBIAS), enabling lower dropout and higher PSRR than PMOS LDOs. |
| Built-in soft-start | Monotonic VOUT rise limits inrush current to ≤100 mA + ILOAD, preventing input rail collapse during power-up sequencing. |
| Stable with 2.2 µF ceramic capacitor | Eliminates need for large tantalum or electrolytic capacitors - reduces board area and improves reliability in automotive environments. |
| AEC-Q100 Grade 1 qualified | Rated for −40 °C to +125 °C ambient operation with PPAP support - suitable for engine bay, infotainment, and ADAS ECU designs. |
| Wettable flank package | Enables automated optical inspection (AOI) of solder joints on bottom-side terminations - critical for zero-defect automotive manufacturing. |
Applications
| Automotive Camera Module Power | FPGA Core Voltage Regulation |
|---|---|
|
Use Scenario: Powering CIS image sensor and ISP processor in rear-view or surround-view cameras. IC Role / Device Role / Timing Role: Post-regulator supplying clean 1.35 V to sensor analog front-end and digital core, rejecting ripple from upstream DC/DC converters. Use Value: 70 dB PSRR at 1 kHz on VBIAS suppresses switching noise from buck converter bias rails, preserving image SNR. |
Use Scenario: Delivering stable 1.35 V to FPGA transceiver banks requiring tight voltage tolerance and fast transient response. IC Role / Device Role / Timing Role: Low-noise, low-dropout point-of-load regulator with monotonic startup to prevent configuration errors during FPGA boot. Use Value: ±2% output accuracy over temperature ensures reliable I/O signaling margins; 110 mV dropout extends battery runtime in portable test equipment. |
| ADAS Domain Controller I/O Rail | Infotainment SoC Memory Interface |
|
Use Scenario: Supplying 1.35 V to CAN-FD transceivers and Ethernet PHY interfaces in centralized ADAS domain controllers. IC Role / Device Role / Timing Role: Noise-isolated bias rail generator with independent VBIAS input, decoupling interface power from noisy main 5 V bus. Use Value: Ultra-low 80 µA bias current minimizes standby power; AEC-Q100 qualification ensures functional safety compliance. |
Use Scenario: Regulating DDR3/DDR4 memory termination voltage (VTT) or auxiliary I/O supply in automotive infotainment head units. IC Role / Device Role / Timing Role: High-PSRR, low-noise LDO providing stable reference for memory interface timing margins. Use Value: 40 µVRMS output noise prevents jitter-induced bit errors; thermal shutdown protects against sustained overload in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar very low dropout linear regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8720BMTW135TBG | Same electrical specs but wettable flank variant (WDFN6 with wettable flanks); identical marking code LJ, same 1.35 V output. | Required for AOI-capable SMT lines; non-wettable flank version (NCV8720BMT135TBG) may be used where AOI is not mandated. | Select NCV8720BMTW135TBG if automated optical inspection of solder joints is required per automotive manufacturing standards. |
| TLD1117BV135 | 1.35 V fixed-output LDO with 800 mA rating, PMOS architecture, 1.2 V dropout, no VBIAS rail, TO-252 package. | Lacks dual-rail capability and ultra-low dropout; suited for non-automotive, cost-sensitive applications where board space and noise are less constrained. | Choose TLD1117BV135 only for industrial or consumer designs lacking AEC-Q100 requirements and where 1.2 V dropout is acceptable. |
Compared with NCV8720BMT135TBG, the wettable flank variant offers identical regulation performance with enhanced manufacturability, while TLD1117BV135 trades off dropout, PSRR, and automotive qualification for higher current and lower cost in non-critical applications.
Availability
NCV8720BMT135TBG is available at Aetrix Electronics and suitable for automotive camera modules, FPGA power delivery, ADAS domain controllers, and infotainment SoC memory interfaces requiring stable component supply under AEC-Q100 Grade 1 conditions.
Supply support for NCV8720BMT135TBG 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 delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NCV8720BMT135TBG belongs to onsemi's automotive-qualified linear regulator product line, engineered specifically for noise-sensitive, space-constrained point-of-load regulation in safety-critical vehicle systems.
FAQ
What is the nominal output voltage of the NCV8720BMT135TBG?
The NCV8720BMT135TBG is factory-programmed to deliver a fixed 1.35 V output voltage with ±2% accuracy over the full −40 °C to +125 °C operating temperature range. This value is encoded in the part number suffix "135" and confirmed in the ordering table on page 9 of the datasheet. No external feedback resistors are required - the NCV8720BMT135TBG operates as a true fixed-output regulator.
Does the NCV8720BMT135TBG require a separate bias supply, and what are its requirements?
Yes, the NCV8720BMT135TBG requires a dedicated VBIAS supply connected to Pin 4. Per the datasheet, VBIAS must be ≥2.4 V and ≤5.5 V, with minimum recommended voltage of (VOUT + 1.4 V) = 2.75 V. It powers internal control circuitry independently of VIN, enabling ultra-low dropout and high PSRR. The device draws only 80 µA typical bias current, making it suitable for low-quiescent systems.
What package type and mounting requirements apply to the NCV8720BMT135TBG?
The NCV8720BMT135TBG uses the WDFN6 2 mm × 2 mm package (Case 511BR) with non-wettable flanks. Its exposed thermal pad must be soldered to a PCB ground plane to achieve the specified RJA = 65 °C/W. Unlike wettable flank variants, this version does not support automated optical inspection of side-wall solder joints - appropriate for assembly lines using X-ray or functional test instead of AOI.
How does the enable (EN) function operate on the NCV8720BMT135TBG?
The EN pin (Pin 3) is active-high with a threshold of 1.1 V (typical). Driving EN ≥1.1 V enables regulation; pulling EN ≤0.4 V places the NCV8720BMT135TBG in shutdown mode, reducing ground current to 0.5 µA. If unused, EN should be tied to VIN or VBIAS. The pin draws only 0.3–2.0 µA, supporting low-power sequencing in multi-rail automotive systems without burdening upstream regulators.
Is the NCV8720BMT135TBG suitable for automotive applications, and what qualifications does it hold?
Yes, the NCV8720BMT135TBG carries the "NCV" prefix denoting automotive qualification. It is AEC-Q100 Grade 1 certified (−40 °C to +125 °C ambient), PPAP-capable, and manufactured in onsemi's IATF 16949-certified facilities. Its design includes thermal shutdown (+160 °C trip), UVLO on VBIAS, and robust ESD protection (2000 V HBM), meeting functional safety requirements for ADAS, body control, and infotainment systems.
NCV8720BMT135TBG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 6-WDFN 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):
- 1.35V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.2V @ 350mA
- Current - Output:
- 350mA
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- 52dB ~ 25dB (10Hz ~ 1MHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WDFN (2x2)
NCV8720BMT135TBG FAQ
1.How can I place an order for NCV8720BMT135TBG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8720BMT135TBG 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 NCV8720BMT135TBG reliable?
The price and inventory of NCV8720BMT135TBG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8720BMT135TBG is usually 5 days.
3.What payment methods are accepted for NCV8720BMT135TBG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8720BMT135TBG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8720BMT135TBG?
NCV8720BMT135TBG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8720BMT135TBG 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 NCV8720BMT135TBG?
For technical support, including NCV8720BMT135TBG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8720BMT135TBG requirements.
6.How does Aetrix verify that NCV8720BMT135TBG is sourced from the original manufacturer or authorized distributors?
All NCV8720BMT135TBG 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 NCV8720BMT135TBG meets industry standards.
7.What is the process for return or replacement of NCV8720BMT135TBG?
All NCV8720BMT135TBG units undergo pre-shipment inspection (PSI). If there is an issue with NCV8720BMT135TBG, 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 NCV8720BMT135TBG part is unused and in its original packaging.
Return procedure for NCV8720BMT135TBG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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