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Texas Instruments LV2862YDDCR
- Part No.:
- LV2862YDDCR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
LV2862YDDCR.pdf
- Description:
- IC REG BUCK ADJ 600MA SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:5,880
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Product details
Overview
LV2862YDDCR 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 switching frequency, 0.765-V feedback reference, Eco-mode for ultra-low 28-µA light-load quiescent current, 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 LV2862YDDCR datasheet, LV2862YDDCR pinout, LV2862YDDCR application, or LV2862YDDCR 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 high-voltage tolerant SHDN pin supporting system-level enable control.
Technical Context
The LV2862YDDCR implements constant-frequency peak current mode control with internal slope compensation and leading-edge blanking to ensure stable regulation under line/load transients. Its integrated boot regulator supplies gate drive via CB–SW capacitor, enabling high-side MOSFET operation up to 96% duty cycle while maintaining CB-to-SW voltage above 3 V.
It features an internal 0.765-V bandgap reference error amplifier driving the COMP node, pulse-by-pulse overcurrent protection clamping COMP voltage, and thermal shutdown with 10°C hysteresis. The device operates in Eco-mode below ~50 mA load (VIN-dependent), reducing switching losses to achieve 28-µA IQ at no load.
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 small 10-µH inductors and 10-µF ceramic output capacitors for minimal solution size. |
| Output Current | 600 mA - sufficient for powering microcontrollers, sensors, and gate drivers in distributed power architectures. |
| Feedback Reference | 0.765 V (±2.5%) - sets output voltage via external resistor divider; allows precise 3.3 V, 5 V, or 12 V regulation. |
| Quiescent Current | 28 µA (Eco-mode, no load) - extends battery life in always-on monitoring systems without sacrificing startup speed. |
| Shutdown Current | 1 µA - ensures negligible drain during system sleep or fault isolation. |
| Thermal Shutdown | 170°C trip, 160°C recovery - protects against sustained overload or poor PCB thermal design without latch-up. |
Pinout & Package
LV2862YDDCR is housed in a thermally enhanced TSOT-6L (DDC) package measuring 2.90 mm × 2.80 mm with exposed pad for improved heat dissipation. The 6-pin layout supports compact two-layer PCB designs and integrates boot capacitor routing directly adjacent to SW.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CB | Bootstrap bias supply | Connects external 100-nF ceramic capacitor to SW; supplies gate drive for internal high-side MOSFET; monitored by UVLO to prevent shoot-through. |
| GND | Power and signal ground | Primary return path for input/output currents and internal circuitry; must be connected to low-impedance PCB ground plane. |
| FB | Feedback input | Senses output voltage via resistor divider; regulates VOUT = 0.765 V × (1 + R1/R2); high-impedance input minimizes divider current loss. |
| SHDN | Enable/disable control | High-voltage tolerant (≤60 V); internal pullup; logic-high ≥1.25 V enables regulator; floating or >1.25 V defaults to ON state. |
| VIN | Main power input | Supplies internal LDO and high-side MOSFET drain; accepts 4–60 V with 65-V transient rating; requires local 2.2-µF ceramic bypass. |
| SW | Switch node | Connects to inductor, Schottky diode cathode, and Cboot capacitor; carries high di/dt pulses; requires tight layout to minimize EMI. |
Key Features
| Feature | Design Value |
|---|---|
| Eco-mode operation | Reduces switching frequency and gate drive activity at light loads, cutting IQ to 28 µA without compromising regulation accuracy. |
| Integrated boot diode | Eliminates need for external bootstrap diode, simplifying layout and improving reliability in high-duty-cycle applications. |
| Internal soft start | Controls output ramp rate during startup, limiting inrush current into output capacitors and preventing input rail sag. |
| 96% max duty cycle | Enables operation with VIN as low as ~1.05×VOUT (e.g., 5.25 V → 5 V), critical for brownout resilience in wide-VIN systems. |
| Pulse-by-pulse OCP | Clamps switch current at 1200 mA per cycle, providing fast overcurrent response without external sensing components. |
Applications
| Grid Infrastructure Monitoring | Industrial Motor Drive Control |
|---|---|
|
Use Scenario: Powering isolated ADCs, RS-485 transceivers, and microcontrollers in smart metering and substation RTUs operating from 24–48 V DC bus with lightning-induced transients. IC Role / Device Role / Timing Role: Primary buck regulator converting unregulated 48 V DC to stable 3.3 V/5 V for digital logic and analog front-ends. Use Value: 65-V transient tolerance and 2.1-MHz switching allow direct connection to noisy distribution lines while minimizing filter component count and board area. |
Use Scenario: Supplying gate drivers and position sensors in 24–48 V BLDC motor inverters deployed in HVAC compressors and factory automation actuators. IC Role / Device Role / Timing Role: Local point-of-load regulator delivering 5 V @ 600 mA to half-bridge gate driver ICs and Hall-effect sensor ICs. Use Value: 96% duty cycle enables reliable 5 V output even during 24 V input dips to 25.2 V, ensuring continuous gate drive during motor startup surges. |
| Appliance Mainboard Power | Automotive Body Control Module |
|
Use Scenario: Generating 5 V for MCU, display controller, and touch interface in washing machines and refrigerators powered from 12–36 V DC intermediate bus. IC Role / Device Role / Timing Role: Secondary buck converter downstream of primary AC/DC or PoE supply, providing clean, low-noise logic rail. Use Value: Internal compensation and soft start eliminate external loop components and prevent reset glitches during power-up sequencing. |
Use Scenario: Regulating 5 V for CAN transceivers, LIN controllers, and EEPROM in BCMs connected to vehicle battery (9–16 V nominal, up to 60 V load dump). IC Role / Device Role / Timing Role: Wide-input buck converter handling cold-crank (4.5 V) to load-dump (60 V) conditions while maintaining 5 V output stability. Use Value: 1-µA shutdown current and high-voltage SHDN pin support ultra-low-power sleep modes compliant with ISO 16750-2 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM61480RQRR | 4.5–60 V input, 8-A output, 2.1-MHz, but larger QFN-16 package and higher BOM cost. | Better suited for high-current motor drivers; over-specified for 600-mA loads requiring minimal footprint. | Select LM61480RQRR only if future current scaling beyond 1 A is anticipated; LV2862YDDCR offers lower solution cost and size at 600 mA. |
| TPS54360BDDAR | 3.5–60 V input, 3.5-A output, 100–2500 kHz adjustable frequency, SOIC-8 package with higher thermal resistance (RθJA = 120°C/W). | Requires external compensation and soft start; less efficient at light loads due to lack of Eco-mode (IQ = 145 µA). | Choose TPS54360BDDAR when adjustable frequency or higher output current is required; LV2862YDDCR provides superior light-load efficiency and smaller form factor. |
Compared with LM61480RQRR and TPS54360BDDAR, LV2862YDDCR delivers optimal balance of 600-mA capability, 2.1-MHz fixed frequency, Eco-mode efficiency, and SOT-6L footprint-making it ideal for space-constrained, battery-sensitive, or cost-driven wide-VIN applications where 1-A+ current is unnecessary.
Availability
LV2862YDDCR is available at Aetrix Electronics and suitable for grid infrastructure monitoring, industrial motor drive control, and appliance mainboard power requiring stable component supply across extended product lifecycles.
Supply support for LV2862YDDCR 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 technologies with decades of automotive and industrial qualification expertise.
The LV2862 product line targets wide-input-voltage DC/DC conversion in harsh environments-designed specifically for industrial automation, grid infrastructure, and automotive body electronics demanding high reliability, transient robustness, and minimal external component count.
FAQ
What is the maximum duty cycle supported by LV2862YDDCR?
The LV2862YDDCR supports up to 96% maximum duty cycle, enabled by its bootstrap UVLO circuit that maintains CB-to-SW voltage above 3 V. This allows operation with input voltages as low as ~1.05×VOUT-critical for sustaining regulation during brownout events in 24 V or 48 V systems. The 96% limit is confirmed in Section 6.5 of the datasheet under "DMAX".
Does LV2862YDDCR require an external bootstrap diode?
No, LV2862YDDCR integrates the bootstrap diode internally, eliminating the need for an external component between CB and VIN. This reduces bill-of-materials count and improves reliability in high-reliability applications. The internal diode charges the CB–SW capacitor during the low-side conduction phase, as described in Section 7.3.4 of the datasheet.
What is the typical quiescent current of LV2862YDDCR in Eco-mode?
The typical quiescent current of LV2862YDDCR in Eco-mode is 28 µA at no load, VIN = 12 V, and TJ = 25°C. This value is specified in Section 6.5 Electrical Characteristics under "IQ". Eco-mode activates automatically at light loads to reduce switching and gate drive losses, significantly extending battery life in always-on monitoring systems.
Can LV2862YDDCR operate with a 3.3-V output?
Yes, LV2862YDDCR can regulate a 3.3-V output using the FB pin and external resistor divider. With a 0.765-V internal reference, setting R2 = 10 kΩ and R1 = 33.2 kΩ yields VOUT = 0.765 V × (1 + 33.2k/10k) = 3.3 V. This configuration is validated in TI's reference designs and supported by the feedback equation in Section 7.3.6.
What protection features are built into LV2862YDDCR?
LV2862YDDCR includes pulse-by-pulse overcurrent protection (1200 mA threshold), thermal shutdown at 170°C with 10°C hysteresis, input undervoltage lockout (UVLO) with 4 V rising threshold, and 65-V absolute maximum input rating. All protections are fully internal-no external components required-and are detailed in Sections 6.1, 6.5, and 7.3.7–7.3.8 of the datasheet.
LV2862YDDCR 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
LV2862YDDCR FAQ
1.How can I place an order for LV2862YDDCR through Aetrix?
Please submit a Request for Quotation (RFQ) for LV2862YDDCR 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 LV2862YDDCR reliable?
The price and inventory of LV2862YDDCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LV2862YDDCR is usually 5 days.
3.What payment methods are accepted for LV2862YDDCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LV2862YDDCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LV2862YDDCR?
LV2862YDDCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LV2862YDDCR 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 LV2862YDDCR?
For technical support, including LV2862YDDCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LV2862YDDCR requirements.
6.How does Aetrix verify that LV2862YDDCR is sourced from the original manufacturer or authorized distributors?
All LV2862YDDCR 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 LV2862YDDCR meets industry standards.
7.What is the process for return or replacement of LV2862YDDCR?
All LV2862YDDCR units undergo pre-shipment inspection (PSI). If there is an issue with LV2862YDDCR, 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 LV2862YDDCR part is unused and in its original packaging.
Return procedure for LV2862YDDCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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