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Texas Instruments LV2862YDDCT
- Part No.:
- LV2862YDDCT
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LV2862YDDCT.pdf
- Description:
- IC REG BUCK ADJ 600MA SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:598
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Product details
Overview
LV2862YDDCT from Texas Instruments is a 60-V input, 600-mA synchronous buck DC/DC converter in SOT-6L (DDC) package, featuring 2.1-MHz fixed-frequency PWM control, Eco-mode for ultra-low 28-µA light-load quiescent current, 0.765-V feedback reference, and integrated high-side MOSFET with bootstrap gate drive. It delivers regulated power in industrial grid infrastructure and motor drive systems where wide VIN and compact footprint are critical.
For engineers reviewing the LV2862YDDCT datasheet, LV2862YDDCT pinout, LV2862YDDCT application, or LV2862YDDCT equivalent, key selection criteria include its 4–60-V input range with 65-V transient tolerance, 96% maximum duty cycle for low-dropout operation, internal soft start and compensation, thermal shutdown at 170°C, and compatibility with ceramic output capacitors down to 10 µF.
Technical Context
The LV2862YDDCT implements constant-frequency peak current mode control with an internal oscillator set to 2.1 MHz, enabling small external inductors (e.g., 10 µH) and low-output-ripple designs. Its integrated high-side MOSFET uses bootstrapped gate drive via the CB–SW node, with UVLO protection below 3 V to ensure reliable refresh during high-duty-cycle operation.
It features a precision 0.765-V feedback reference with ±2.5% tolerance over temperature, pulse-by-pulse overcurrent limiting at 1200 mA, and a high-voltage tolerant SHDN pin (0–60 V) supporting system-level enable/disable and adjustable UVLO via external resistor divider. Eco-mode activates automatically under light load to reduce switching losses while maintaining regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4 V to 60 V - supports unregulated industrial rails and automotive battery inputs with 65-V transient tolerance. |
| Switching Frequency | 2.1 MHz (typ) - enables use of 10-µH inductors and compact 10-µF ceramic output capacitors. |
| Output Current | 600 mA - sufficient for powering microcontrollers, sensors, and gate drivers in space-constrained systems. |
| Feedback Reference | 0.765 V (±2.5%) - sets output voltage via external resistor divider; enables precise 3.3-V, 5-V, or 12-V regulation. |
| Quiescent Current | 28 µA in Eco-mode - extends battery life in always-on or low-power monitoring applications. |
| Shutdown Current | 1 µA - minimizes leakage when disabled, critical for energy-harvesting or backup power systems. |
| Thermal Shutdown | 170°C trip point with 10°C hysteresis - protects against sustained overload without requiring external thermal management. |
Pinout & Package
LV2862YDDCT is housed in a thermally enhanced TSOT-6L (DDC) package measuring 2.90 mm × 2.80 mm, optimized for high-power-density PCB layouts with minimal thermal vias required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CB | Bootstrap capacitor connection | Provides gate drive voltage for internal high-side MOSFET; requires 100-nF ceramic cap between CB and SW. |
| GND | Power ground reference | Primary return path for input, output, and internal bias currents; must be low-impedance and directly connected to power plane. |
| FB | Feedback voltage sensing | Monitors output via resistor divider; regulates VOUT = 0.765 V × (1 + R1/R2); high-impedance input minimizes divider current. |
| SHDN | Enable/disable control | High-voltage tolerant (0–60 V); pulled up internally; <1.25 V disables regulator and reduces IQ to 1 µA. |
| VIN | Main power input | Supplies internal bias and drives high-side MOSFET drain; accepts 4–60 V with 65-V transient rating. |
| SW | Switch node | Connects to inductor, catch diode, and Cboot; carries high di/dt; requires tight layout and Kelvin grounding for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Eco-mode operation | Reduces quiescent current to 28 µA at light load while maintaining regulation-critical for battery-powered remote sensors. |
| Integrated boot diode & high-side FET | Eliminates need for external bootstrap diode and reduces BOM count; simplifies layout and improves reliability. |
| Internal soft start | Prevents inrush current during power-up; avoids input rail sag and output overshoot without external timing components. |
| 96% max duty cycle | Enables operation with VIN close to VOUT (e.g., 12 V → 11.5 V), extending usable input range in dropout conditions. |
| Pulse-by-pulse current limit | Clamps peak switch current at 1200 mA per cycle-protects against short-circuit faults without latch-off behavior. |
Applications
| Grid Infrastructure Monitoring | Industrial Motor Drive Control |
|---|---|
|
Use Scenario: Powering isolated ADCs, RS-485 transceivers, and microcontrollers in smart metering and substation RTUs exposed to 48-V DC bus with lightning-induced transients. IC Role / Device Role / Timing Role: Primary step-down regulator converting 48-V or 60-V DC bus to stable 3.3-V or 5-V logic supply. Use Value: 65-V transient tolerance and 1-µA shutdown current ensure continuous operation during grid surges and extended standby periods. |
Use Scenario: Supplying gate drivers and position sensors in BLDC motor inverters operating from 24–48-V battery packs in factory automation equipment. IC Role / Device Role / Timing Role: Local point-of-load regulator delivering 5-V/600-mA to isolated IGBT/SiC driver stages. Use Value: 2.1-MHz switching frequency allows compact magnetics and fast transient response to PWM-driven load steps. |
| Appliance Mainboard Power | Automotive Body Control Module |
|
Use Scenario: Generating 3.3-V MCU core voltage and 5-V peripheral rail in washing machine or HVAC control boards powered by rectified AC or 24-V DC. IC Role / Device Role / Timing Role: Wide-input buck converter replacing linear regulators to improve efficiency and reduce thermal stress on PCB. Use Value: Internal compensation and soft start eliminate tuning effort; SOT-6L footprint saves space versus SOIC-8 alternatives. |
Use Scenario: Providing 5-V supply to CAN transceivers and microcontrollers in BCMs connected to 12-V vehicle battery with cold-crank and load-dump events. IC Role / Device Role / Timing Role: Input-conditioning regulator handling 4–16-V cold-crank and 65-V load-dump transients before downstream LDOs. Use Value: 4-V minimum input and 65-V transient rating meet ISO 7637-2 Pulse 1/2/5a requirements without external TVS clamping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM61480RQDRRRQ1 | 4.5–36-V input, 8-A output, 2.1-MHz, AEC-Q100 qualified; larger QFN-16 package. | Targeted at automotive ADAS and infotainment; exceeds LV2862YDDCT's voltage and current specs but lacks 60-V capability. | Select when AEC-Q100 compliance and >600-mA load are required; not suitable for >36-V industrial inputs. |
| TPS54202HDDCR | 4.5–28-V input, 2-A output, 2.1-MHz, integrated FETs; SOT-23-6 package; no Eco-mode. | Optimized for cost-sensitive consumer electronics; higher IQ (45 µA) and lower VIN range limit use in 48-V systems. | Choose for 12–24-V applications needing higher current and smaller footprint; avoid where 60-V transients or ultra-low IQ are mandatory. |
Compared with LM61480RQDRRRQ1 and TPS54202HDDCR, the LV2862YDDCT uniquely balances 60-V input capability, 28-µA Eco-mode IQ, and SOT-6L size-making it optimal for space-constrained industrial power supplies where voltage range and standby efficiency outweigh raw current capacity.
Availability
LV2862YDDCT is available at Aetrix Electronics and suitable for grid infrastructure monitoring, industrial motor drive control, and appliance mainboard power requiring stable component supply across long production lifecycles.
Supply support for LV2862YDDCT 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management ICs, with decades of expertise in high-reliability power conversion solutions.
The LV2862 product line targets wide-input industrial and automotive DC/DC conversion, emphasizing robustness under voltage transients, ultra-low quiescent current, and minimal external component count for rapid design-in.
FAQ
What is the maximum input voltage rating for the LV2862YDDCT, including transient conditions?
The LV2862YDDCT supports a continuous input voltage range of 4 V to 60 V, with absolute maximum transient rating of 65 V on the VIN pin. This 65-V transient tolerance is specified in the Absolute Maximum Ratings table and enables direct use in industrial 48-V systems subject to lightning or inductive kick events without external clamping.
Does the LV2862YDDCT require an external bootstrap diode?
No, the LV2862YDDCT integrates the bootstrap diode internally. The device only requires a 100-nF ceramic capacitor connected between the CB and SW pins to provide gate drive voltage for the internal high-side MOSFET-reducing BOM count and improving reliability compared to controllers requiring external diodes.
How does Eco-mode affect regulation accuracy and output ripple in the LV2862YDDCT?
In Eco-mode, the LV2862YDDCT maintains full regulation accuracy (±2.5% on 0.765-V reference) and typical output ripple remains below 1% at 5 V output. Eco-mode reduces switching frequency and gate drive activity at light loads, lowering quiescent current to 28 µA without compromising voltage stability or transient response.
What is the purpose of the SHDN pin's internal pullup current source in the LV2862YDDCT?
The SHDN pin's internal pullup current source ensures the LV2862YDDCT powers up enabled when the pin is left floating-eliminating the need for an external pullup resistor in basic applications. It also allows logic-level enable (≥1.25 V) or high-voltage disable (<1.25 V) using simple resistive dividers from higher-voltage rails up to 60 V.
Can the LV2862YDDCT operate with a 96% duty cycle, and what design conditions enable this?
Yes, the LV2862YDDCT supports up to 96% duty cycle when the CB-to-SW voltage remains above 3 V, allowing operation with VIN as low as ~1.04×VOUT (e.g., 12 V → 11.5 V). This is enabled by internal boot UVLO and CB refresh circuitry that sustains gate drive during extended on-time, critical for low-dropout applications.
LV2862YDDCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4V
- Voltage - Input (Max):
- 60V
- Voltage - Output (Min/Fixed):
- 0.765V
- Voltage - Output (Max):
- 60V
- Current - Output:
- 600mA
- Frequency - Switching:
- 2.1MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-THIN
LV2862YDDCT FAQ
1.How can I place an order for LV2862YDDCT through Aetrix?
Please submit a Request for Quotation (RFQ) for LV2862YDDCT 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 LV2862YDDCT reliable?
The price and inventory of LV2862YDDCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LV2862YDDCT is usually 5 days.
3.What payment methods are accepted for LV2862YDDCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LV2862YDDCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LV2862YDDCT?
LV2862YDDCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LV2862YDDCT 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 LV2862YDDCT?
For technical support, including LV2862YDDCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LV2862YDDCT requirements.
6.How does Aetrix verify that LV2862YDDCT is sourced from the original manufacturer or authorized distributors?
All LV2862YDDCT 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 LV2862YDDCT meets industry standards.
7.What is the process for return or replacement of LV2862YDDCT?
All LV2862YDDCT units undergo pre-shipment inspection (PSI). If there is an issue with LV2862YDDCT, 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 LV2862YDDCT part is unused and in its original packaging.
Return procedure for LV2862YDDCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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