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Texas Instruments LM2592HVSX-5.0/NOPB
- Part No.:
- LM2592HVSX-5.0/NOPB
- Manufacturer:
- Texas Instruments
- Package:
- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- Datasheet:
-
LM2592HVSX-5.0/NOPB.pdf
- Description:
- IC REG BUCK 5V 2A TO263
- Quantity:
- Payment:
- Shipping:
Inventory:689
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Product details
Overview
LM2592HVSX-5.0/NOPB from Texas Instruments is a monolithic nonsynchronous step-down (buck) DC-DC switching regulator delivering 5.0 V at up to 2 A output current, with input voltage support up to 60 V, fixed 150-kHz switching frequency, and ±4% output voltage tolerance over line and load. It serves as a primary power conversion stage in industrial power supplies, automotive subsystems, and distributed point-of-load applications.
For engineers reviewing the LM2592HVSX-5.0/NOPB datasheet, LM2592HVSX-5.0/NOPB pinout, LM2592HVSX-5.0/NOPB application, or LM2592HVSX-5.0/NOPB equivalent, key selection criteria include its 2-A continuous output capability, 90 μA standby quiescent current, thermal shutdown protection, ON/OFF control interface, and compatibility with standard 5-pin TO-220 and DDPAK packages.
Technical Context
The LM2592HVSX-5.0/NOPB integrates a high-voltage N-channel MOSFET switch, internal 150-kHz oscillator, error amplifier, and feedback comparator in a single chip. Its fixed-output architecture ties the Feedback pin directly to the Output pin, eliminating external resistor dividers and simplifying design for stable 5.0 V regulation across 7–60 V input range.
It operates in continuous conduction mode (CCM) at full load and transitions to discontinuous conduction mode (DCM) under light loads. Protection features include two-stage current limiting (peak limit ≥2.4 A), thermal shutdown at 150 °C junction temperature, and undervoltage lockout behavior enabled via the ON/OFF pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±4% (4.8–5.2 V) across full operating temperature and load range - ensures stable rail for microcontrollers and analog circuitry without trimming. |
| Max Output Current | 2 A DC continuous - supports moderate-power loads such as sensors, actuators, and communication interfaces without external current boosting. |
| Input Voltage Range | 4.5 V to 60 V - enables direct operation from 12 V/24 V/48 V industrial buses and automotive batteries with transient tolerance. |
| Switching Frequency | 150 kHz (±15%) - allows use of compact, low-cost 33–47 μH inductors and standard electrolytic output capacitors. |
| Quiescent Current | 90 μA typical in shutdown mode - minimizes battery drain in always-on systems with enable-controlled power sequencing. |
| Efficiency | 81% typical at VIN = 12 V, IOUT = 2 A - reduces thermal load and improves system-level power density versus linear regulators. |
| Saturation Voltage | 1.3 V typical at 2 A - defines minimum dropout headroom and impacts thermal dissipation in high-current, low-VIN scenarios. |
| Thermal Shutdown | Activates at 150 °C junction temperature - prevents permanent damage during overload or poor heatsinking conditions. |
Pinout & Package
LM2592HVSX-5.0/NOPB is supplied in a 5-pin TO-220 (NDH) package with through-hole mounting and integral heat sink tab. The package measures 14.986 mm × 10.16 mm and supports PCB copper pour thermal relief.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +VIN | Positive input supply | Accepts 4.5–60 V DC; requires local 470-μF low-ESR aluminum electrolytic bypass capacitor to handle high di/dt switching currents. |
| Output | Switch node | Drives external catch diode and inductor; swings between ~(+VIN − 1.3 V) and ~−0.5 V; must be routed with minimal loop area for EMI control. |
| Ground | Power and signal reference | Common return for input/output capacitors, feedback network, and thermal pad; must connect to large copper plane for thermal and noise performance. |
| Feedback | Regulation sense | Internally tied to Output pin for fixed 5.0 V version; no external divider needed - eliminates resistor tolerance errors and layout sensitivity. |
| ON/OFF | Enable control input | Logic-compatible shutdown: ≤0.6 V = active, ≥2 V = standby (90 μA IQ); threshold typically 1.3 V; max rating 25 V. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated high-voltage switch | Supports 60 V max input without external FET - reduces BOM count and layout complexity for wide-input applications. |
| Fixed-frequency oscillator | 150-kHz internal clock enables predictable EMI filtering and consistent inductor sizing across designs. |
| Thermal + current protection | Dual-stage current limit (2.4–3.7 A peak) plus 150 °C thermal shutdown - provides robust fault handling without external circuitry. |
| Low-IQ shutdown mode | 90 μA typical standby current - extends battery life in portable or energy-harvested systems requiring periodic wake-up. |
| Simple PCB layout | 5-pin TO-220 footprint with dedicated ground and input/output pins - minimizes parasitic inductance and eases thermal management. |
| Wide operating temperature | Rated for −40 °C to +125 °C ambient - suitable for under-hood automotive, factory automation, and outdoor industrial equipment. |
Applications
| Industrial Power Supply | Automotive Body Control Module |
|---|---|
Use Scenario: Converting 24 V vehicle battery or 48 V telecom bus to stable 5 V for MCU, CAN transceivers, and sensor interfaces. IC Role / Device Role / Timing Role: Primary buck regulator providing isolated, regulated 5 V rail with transient immunity and thermal resilience. Use Value: Eliminates need for pre-regulator + LDO cascade; achieves 81% efficiency at 2 A, reducing heat sink size and enabling compact enclosure design. | Use Scenario: Powering door module ECUs, seat controllers, or lighting drivers in passenger vehicles where input voltage varies from 9 V (cranking) to 16 V (charging). IC Role / Device Role / Timing Role: Input-tolerant step-down converter with built-in UVLO and shutdown control for safe power sequencing. Use Value: Maintains regulation down to 7 V input and survives 60 V load-dump transients - meets ISO 7637-2 Pulse 5a requirements without external TVS. |
| Programmable Logic Controller (PLC) I/O Card | Outdoor Wireless Sensor Node |
Use Scenario: Generating clean 5 V from 24 V field bus to power digital isolators, ADCs, and optocouplers on modular I/O cards. IC Role / Device Role / Timing Role: High-reliability DC-DC converter with thermal shutdown and current limiting for unattended operation in harsh environments. Use Value: Delivers 2 A continuously at 125 °C ambient - enables fanless PLC cabinet design with extended service intervals. | Use Scenario: Battery-powered environmental monitor using Li-ion or 4xAA alkaline, requiring ultra-low standby power and wide VIN range. IC Role / Device Role / Timing Role: Enable-controlled buck regulator supporting deep-sleep modes with 90 μA shutdown current. Use Value: Extends battery life by >3× versus non-shutdown alternatives; supports solar recharge integration via 60 V PV input tolerance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2592HVSX-3.3/NOPB | Fixed 3.3 V output; identical pinout, package, and electrical specs except VOUT and input min (4.75 V). | Used where 3.3 V logic rails dominate; not interchangeable without board revision. | Select when system requires 3.3 V instead of 5.0 V - same layout, same thermal design, same external components. |
| LM2596SX-5.0/NOPB | Same 5.0 V output but higher 3 A rating, 150 kHz frequency, and improved efficiency (88% typ); uses same 5-pin TO-220 package. | Better suited for higher-current or thermally constrained applications; pinout compatible but requires validation of inductor/capacitor ratings. | Choose for upgraded current capability and efficiency; verify catch diode and inductor RMS current ratings match new 3 A spec. |
Compared with LM2592HVSX-5.0/NOPB, the LM2592HVSX-3.3/NOPB offers identical reliability and layout compatibility at a different output voltage, while the LM2596SX-5.0/NOPB delivers higher output current and efficiency in the same footprint - both serve distinct design goals without requiring PCB redesign.
Availability
LM2592HVSX-5.0/NOPB is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, and programmable logic controller (PLC) I/O modules requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for LM2592HVSX-5.0/NOPB 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 LM2592HV product line was designed for rugged, wide-input-voltage step-down regulation in industrial, automotive, and telecom infrastructure - prioritizing simplicity, thermal robustness, and minimal external component count.
FAQ
What is the minimum input voltage required for LM2592HVSX-5.0/NOPB to regulate 5.0 V output?
The LM2592HVSX-5.0/NOPB requires a minimum input voltage of 7 V to maintain 5.0 V regulation across its full 0.2–2 A load range, as specified in the Electrical Characteristics table. Below 7 V, dropout occurs and output voltage drops linearly with input; the device remains functional but exits regulation. This headroom accounts for switch saturation voltage (~1.3 V) and control loop margin.
Does LM2592HVSX-5.0/NOPB require an external feedback resistor network?
No, LM2592HVSX-5.0/NOPB does not require external feedback resistors. As a fixed-output variant, its Feedback pin is internally connected to the Output pin, establishing the 5.0 V regulation setpoint without external components - simplifying design, improving accuracy, and eliminating resistor tolerance and temperature drift effects.
Can LM2592HVSX-5.0/NOPB be used in a negative-output (inverting) configuration?
Yes, LM2592HVSX-5.0/NOPB can be configured as a positive-to-negative inverter per TI Application Note AN-1157. In this topology, the Ground pin is lifted to the negative output voltage, and the Feedback pin is referenced to that node. The device generates −5.0 V from a positive input, with maximum |VIN| + |VOUT| ≤ 60 V - e.g., +20 V input yields −12 V output.
What thermal derating applies to LM2592HVSX-5.0/NOPB in TO-220 package at 125 °C ambient?
In the NDH (TO-220) package, LM2592HVSX-5.0/NOPB has a junction-to-ambient thermal resistance (RθJA) of 50 °C/W. At 125 °C ambient, the maximum allowable power dissipation before reaching 150 °C junction limit is (150 − 125)/50 = 0.5 W. With typical 1.3 V saturation voltage, this corresponds to ~385 mA continuous output current - confirming derating is essential for full 2 A operation above 85 °C ambient.
Is LM2592HVSX-5.0/NOPB RoHS compliant and lead-free?
Yes, LM2592HVSX-5.0/NOPB is RoHS compliant and lead-free. The "/NOPB" suffix explicitly denotes "No Lead (Pb)-Free", indicating compliance with EU Directive 2011/65/EU and TI's green packaging standards. The device uses matte tin lead finish and meets JEDEC J-STD-020 moisture sensitivity level (MSL) 3 requirements.
LM2592HVSX-5.0/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SIMPLE SWITCHER®
- Package/Case:
- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 60V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 2A
- Frequency - Switching:
- 150kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263 (DDPAK-5)
LM2592HVSX-5.0/NOPB FAQ
1.How can I place an order for LM2592HVSX-5.0/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2592HVSX-5.0/NOPB 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 LM2592HVSX-5.0/NOPB reliable?
The price and inventory of LM2592HVSX-5.0/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2592HVSX-5.0/NOPB is usually 5 days.
3.What payment methods are accepted for LM2592HVSX-5.0/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2592HVSX-5.0/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2592HVSX-5.0/NOPB?
LM2592HVSX-5.0/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2592HVSX-5.0/NOPB 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 LM2592HVSX-5.0/NOPB?
For technical support, including LM2592HVSX-5.0/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2592HVSX-5.0/NOPB requirements.
6.How does Aetrix verify that LM2592HVSX-5.0/NOPB is sourced from the original manufacturer or authorized distributors?
All LM2592HVSX-5.0/NOPB 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 LM2592HVSX-5.0/NOPB meets industry standards.
7.What is the process for return or replacement of LM2592HVSX-5.0/NOPB?
All LM2592HVSX-5.0/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM2592HVSX-5.0/NOPB, 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 LM2592HVSX-5.0/NOPB part is unused and in its original packaging.
Return procedure for LM2592HVSX-5.0/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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