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Texas Instruments LM2592HVT-5.0
- Part No.:
- LM2592HVT-5.0
- Manufacturer:
- Texas Instruments
- Package:
- TO-220-5 Formed Leads
- Datasheet:
-
LM2592HVT-5.0.pdf
- Description:
- IC REG BUCK 5V 2A TO220-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,168
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Product details
Overview
LM2592HVT-5.0 from Texas Instruments is a monolithic 150 kHz, 2A step-down (buck) switching voltage regulator with fixed 5.0 V output, 4.75–60 V input range, ±4% output voltage tolerance over line/load/temperature, and integrated thermal shutdown and current limiting. It delivers high-efficiency power conversion in industrial power supplies and automotive subsystems requiring robust DC-DC regulation.
For engineers reviewing the LM2592HVT-5.0 datasheet, LM2592HVT-5.0 pinout, LM2592HVT-5.0 application, or LM2592HVT-5.0 equivalent, key selection considerations include its 60 V max input rating, 2 A guaranteed load current, TO-220/TO-263 package thermal performance, and ON/OFF control interface for system-level power sequencing.
Technical Context
The LM2592HVT-5.0 implements a fixed-frequency current-mode buck topology with internal 150 kHz oscillator, single N-channel MOSFET switch, and built-in frequency compensation. Its control loop regulates output by modulating duty cycle based on feedback from the internal 5.0 V reference and external output divider (not required for fixed-output versions).
It features two-stage current limiting (peak switch current up to 4.0 A), thermal shutdown at +150°C junction temperature, and low-power standby mode drawing 90 μA when the ON/OFF pin is pulled high. The device operates across −40°C to +125°C junction temperature with input voltage rejection optimized for wide-input industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.0 V ±4% over full line (7–60 V), load (0.2–2 A), and temperature (−40°C to +125°C) - ensures stable logic rail without external resistor network. |
| Max Input Voltage | 60 V - supports 48 V industrial bus, automotive cold-crank (up to 60 V transient), and wide-range off-line pre-regulation. |
| Output Current | 2 A continuous - sufficient for powering microcontrollers, sensors, and peripheral ICs without external current boosting. |
| Switching Frequency | 150 kHz fixed - enables use of standard, low-cost 33–47 μH inductors and reduces EMI compared to lower-frequency alternatives. |
| Efficiency | 81% at VIN = 12 V, IOUT = 2 A - minimizes thermal stress and simplifies heatsinking in enclosed enclosures. |
| Quiescent Current | 90 μA in shutdown (ON/OFF pin ≥2.0 V) - enables ultra-low-power system sleep modes with minimal battery drain. |
| Thermal Resistance | θJA = 50°C/W (TO-220), θJC = 2°C/W - allows direct heatsink mounting for sustained 2 A operation at elevated ambient temperatures. |
Pinout & Package
LM2592HVT-5.0 is available in the TO-220-5 (KTT) package with bent/staggered leads and exposed tab for thermal conduction. The tab is electrically connected to Pin 3 (Ground) and must be soldered to a copper pour for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +VIN (Pin 1) | Input Power Supply | Accepts 4.75–60 V DC; requires low-ESR input capacitor (≥470 μF) placed within 5 mm to suppress switching transients. |
| Output (Pin 2) | Switch Node | Drives external catch diode and inductor; swings between ≈(+VIN − 1.4 V) and ≈−0.5 V during operation - dictates layout for EMI control. |
| Ground (Pin 3) | Power & Signal Reference | Common return for input/output capacitors, feedback network, and heatsink; connects internally to exposed tab for thermal path. |
| Feedback (Pin 4) | Regulation Sense | Internally tied to 5.0 V reference for fixed-output version; unused externally - must not be left floating or capacitively coupled. |
| ON/OFF (Pin 5) | Enable/Shutdown Control | Logic-compatible input: ≤0.6 V = ON, ≥2.0 V = OFF; draws ≤5 μA in active state - enables microcontroller-controlled power sequencing. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Thermal Shutdown | Activates at +150°C junction temperature and auto-recovers after cooldown - eliminates need for external thermal monitoring circuitry. |
| Two-Stage Current Limit | First stage limits peak switch current to ≥2.4 A; second stage reduces frequency under overload - prevents catastrophic failure during short-circuit events. |
| Wide Input Range (4.75–60 V) | Supports direct connection to 24 V/48 V industrial buses and automotive batteries without pre-regulation - reduces BOM count and board space. |
| Fixed 5.0 V Output with ±4% Tolerance | Guaranteed across all operating conditions - eliminates calibration overhead and enables direct powering of 5 V logic, USB peripherals, and analog front-ends. |
| Low Standby Quiescent Current (90 μA) | Enables >1-year battery life in always-on remote sensors when paired with lithium thionyl chloride cells - critical for IoT edge nodes. |
Applications
| Industrial Power Supply | Automotive Body Control Module |
|---|---|
Use Scenario: Converting 24 V vehicle battery or 48 V factory bus to stable 5 V for MCU, CAN transceivers, and sensor interfaces. IC Role / Device Role / Timing Role: Primary non-isolated buck regulator providing regulated 5 V rail with transient immunity during load-dump events. Use Value: Withstands 60 V input transients and delivers 2 A continuously - eliminates need for external TVS clamping or pre-regulator stages. |
Use Scenario: Powering door lock actuators, window lift controllers, and interior lighting modules in 12 V/24 V commercial vehicles. IC Role / Device Role / Timing Role: High-reliability DC-DC converter enabling centralized power distribution with ON/OFF pin sequencing. Use Value: 90 μA shutdown current extends battery life during vehicle sleep mode; thermal shutdown protects against enclosure overheating. |
| Programmable Logic Controller (PLC) I/O Card | Outdoor Wireless Sensor Node |
Use Scenario: Generating isolated 5 V supply for digital I/O buffers and fieldbus interface ICs on modular PLC backplanes. IC Role / Device Role / Timing Role: Pre-regulator feeding linear regulators or LDOs to achieve ultra-low-noise 3.3 V/1.8 V rails. Use Value: 81% efficiency at 12 V input reduces heat generation in densely packed chassis - avoids forced-air cooling requirements. |
Use Scenario: Long-life solar/battery-powered environmental monitor transmitting data via LoRaWAN or NB-IoT. IC Role / Device Role / Timing Role: Main power converter managing energy harvesting input and regulating 5 V for radio and MCU during burst transmission. Use Value: 150 kHz switching enables compact 33 μH inductor and 220 μF output capacitor - minimizes PCB footprint in constrained enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2596HV-5.0 | Higher 150 kHz frequency tolerance (±15% vs. ±15%), same 60 V input, but 3 A rated output and improved line regulation (0.05% vs. 0.2%). | Supports higher current loads (e.g., multi-rail systems); requires larger inductor due to higher peak currents. | Select when >2 A output or tighter line regulation is required; pinout differs (no dedicated ON/OFF pin). |
| MP2451DT-LF-Z | 36 V max input (vs. 60 V), 2 A output, 2 MHz switching (vs. 150 kHz), smaller TSOT23-6 package, no thermal pad. | Better suited for space-constrained consumer electronics; unsuitable for 48 V industrial or automotive applications. | Select for compact, low-profile designs where input voltage stays below 36 V and high-frequency operation is acceptable. |
Compared with LM2592HVT-5.0, LM2596HV-5.0 offers higher current headroom and tighter regulation but lacks ON/OFF control; MP2451DT-LF-Z enables miniaturization at the cost of input voltage range and thermal robustness - making LM2592HVT-5.0 optimal for ruggedized 48–60 V systems requiring programmable enable and proven thermal reliability.
Availability
LM2592HVT-5.0 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, and outdoor wireless sensor nodes requiring stable component supply with long-term lifecycle assurance.
Supply support for LM2592HVT-5.0 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 expertise in high-reliability power conversion ICs.
The LM2592HV series was designed specifically for industrial and automotive applications demanding wide-input-voltage buck regulation with integrated protection - emphasizing ruggedness, thermal resilience, and ease of implementation in harsh environments.
FAQ
What is the maximum input voltage rating for the LM2592HVT-5.0?
The LM2592HVT-5.0 has an absolute maximum input voltage rating of 63 V, with guaranteed operation up to 60 V DC. This enables direct integration into 48 V industrial systems and automotive applications subject to load-dump transients. Operation above 60 V risks permanent damage and voids specifications - always include appropriate input filtering and clamping per TI Application Report SLVA419.
Does the LM2592HVT-5.0 require external feedback resistors to set the output voltage?
No, the LM2592HVT-5.0 is a fixed-output variant with internal 5.0 V reference and feedback network. Pin 4 (Feedback) is internally connected to the output stage and must not be externally loaded or bypassed. Adding external components to Pin 4 may disrupt regulation accuracy or cause instability - refer to Figure 22 in the SNVS075C datasheet for correct application circuit.
Can the LM2592HVT-5.0 be used in thermally demanding environments?
Yes, the LM2592HVT-5.0 is rated for junction temperatures from −40°C to +125°C and includes thermal shutdown at +150°C. When mounted on a 1 in² copper area in a TO-220 package, its θJA is 50°C/W - allowing 2 A continuous output at +70°C ambient with proper heatsinking. For higher ambient or sustained loads, use the DDPAK (NDH) variant or add a small heatsink to the tab.
How does the ON/OFF pin function on the LM2592HVT-5.0?
The ON/OFF pin (Pin 5) provides logic-level enable control: pulling it to ≤0.6 V enables regulation, while driving it to ≥2.0 V places LM2592HVT-5.0 in low-power shutdown (IQ ≈ 90 μA). The threshold is typically 1.3 V, and the pin tolerates up to +25 V. This feature enables precise power sequencing in multi-rail systems and battery-saving sleep modes without external MOSFET switches.
What type of catch diode is recommended for use with the LM2592HVT-5.0?
A Schottky rectifier rated for ≥3.3 A average current and ≥60 V reverse voltage is recommended - such as the 31DQ06 (60 V, 3.3 A). Schottky diodes minimize forward voltage drop (≈0.5 V) and eliminate reverse recovery losses, maximizing efficiency especially at 5 V output. Place the diode within 5 mm of Pins 2 and 3 with minimal trace area to reduce EMI and voltage spikes.
LM2592HVT-5.0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- SIMPLE SWITCHER®
- Package/Case:
- TO-220-5 Formed Leads
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- Through Hole
- Supplier Device Package:
- TO-220-5
LM2592HVT-5.0 FAQ
1.How can I place an order for LM2592HVT-5.0 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2592HVT-5.0 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 LM2592HVT-5.0 reliable?
The price and inventory of LM2592HVT-5.0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2592HVT-5.0 is usually 5 days.
3.What payment methods are accepted for LM2592HVT-5.0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2592HVT-5.0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2592HVT-5.0?
LM2592HVT-5.0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2592HVT-5.0 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 LM2592HVT-5.0?
For technical support, including LM2592HVT-5.0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2592HVT-5.0 requirements.
6.How does Aetrix verify that LM2592HVT-5.0 is sourced from the original manufacturer or authorized distributors?
All LM2592HVT-5.0 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 LM2592HVT-5.0 meets industry standards.
7.What is the process for return or replacement of LM2592HVT-5.0?
All LM2592HVT-5.0 units undergo pre-shipment inspection (PSI). If there is an issue with LM2592HVT-5.0, 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 LM2592HVT-5.0 part is unused and in its original packaging.
Return procedure for LM2592HVT-5.0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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