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Texas Instruments TL2575HV-12IKV
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- Part No.:
- TL2575HV-12IKV
- Manufacturer:
- Texas Instruments
- Package:
- TO-220-5 Formed Leads
- Datasheet:
-
TL2575HV-12IKV.pdf
- Description:
- IC REG BUCK 12V 1A TO220-5
- Quantity:
- Payment:
- Shipping:
Inventory:234
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Product details
Overview
TL2575HV-12IKV from Texas Instruments is a fixed-output 12-V, 1-A step-down (buck) switching voltage regulator with ±5% output regulation over line, load, and temperature. It operates from 4.75 V to 60 V input, features internal 52-kHz oscillator, cycle-by-cycle current limiting, and thermal shutdown-designed for industrial power conversion in motor drives and grid infrastructure.
For engineers reviewing the TL2575HV-12IKV datasheet, TL2575HV-12IKV pinout, TL2575HV-12IKV application, or TL2575HV-12IKV equivalent, this page delivers verified specifications, TO-220 package mapping, functional pin roles, real-world use cases, and two validated alternative parts with documented technical and application differences.
Technical Context
The TL2575HV-12IKV integrates a 1-A N-channel MOSFET switch, fixed-gain error amplifier, 1.23-V bandgap reference, and 52-kHz oscillator to implement a complete buck regulator with internal frequency compensation. Its ON/OFF pin enables TTL-compatible shutdown with 50-μA standby current, while cycle-by-cycle current limiting and thermal shutdown provide robust fault protection.
It uses external components-inductor, catch diode, input/output capacitors-and requires no external compensation. Feedback is internally connected to output for fixed 12-V operation; no resistor divider is needed. The device supports continuous or discontinuous conduction mode depending on load and inductor selection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 12 V ±5% over full operating range (–40°C to 125°C, 15 V ≤ VIN ≤ 60 V, 0.2 A ≤ IOUT ≤ 1 A) |
| Input voltage range | 4.75 V to 60 V - enables direct regulation from unregulated 48-V DC bus or rectified AC lines |
| Output current | 1 A continuous - sufficient for powering microcontrollers, sensors, and gate drivers without external pass devices |
| Switching frequency | 52 kHz typical - balances EMI control and inductor size; fixed-frequency simplifies filter design |
| Efficiency | 88% typical at 15 V IN / 12 V OUT / 1 A - reduces thermal load vs. linear regulators; often eliminates heatsink |
| Standby current | 50 μA typical - enables low-power sleep modes in battery-backed or energy-conscious systems |
| Protection | Thermal shutdown + cycle-by-cycle current limiting - prevents damage during overload or short-circuit events |
Pinout & Package
TL2575HV-12IKV is housed in the KV (TO-220 staggered leads) package: 5-pin, 10.16 mm × 8.82 mm body, with exposed tab electrically connected to GND for thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Unregulated DC input supply | Accepts 4.75–60 V; must be bypassed with ≥47 µF electrolytic capacitor near pin |
| OUTPUT (Pin 2) | Regulated 12-V output node | Drives 1-A load; connects to output inductor and catch diode anode |
| GND (Pin 3) | Power and signal ground reference | Common return for input/output paths; ties to exposed tab for thermal conduction |
| FEEDBACK (Pin 4) | Internal voltage sense input | Internally tied to 12-V output; no external resistors required for fixed-voltage operation |
| ON/OFF (Pin 5) | TTL-compatible enable/shutdown control | Logic-low (≤1 V) enables operation; logic-high (≥2.2 V) enters 50-μA standby mode |
Key Features
| Feature | Design Value |
|---|---|
| Fixed 12-V output | Eliminates external feedback resistors-reduces BOM count and layout sensitivity |
| 60-V max input rating | Supports wide-input applications including 48-V telecom, industrial DC distribution, and automotive cold-crank |
| Integrated 1-A switch | Removes need for external MOSFET and driver; simplifies thermal management with single-package solution |
| 52-kHz fixed oscillator | Enables predictable EMI filtering and consistent inductor sizing across designs |
| TTL shutdown | Allows system-level power sequencing and low-power sleep states without auxiliary circuitry |
Applications
| Motor Drive Power Supply | Grid Infrastructure Monitoring |
|---|---|
Use Scenario: Powers gate drivers and logic circuits in 24/48-V DC motor controllers used in HVAC actuators and conveyor systems. IC Role / Device Role / Timing Role: Primary 12-V buck regulator delivering stable rail for isolated gate drivers and MCU peripherals. Use Value: High efficiency (88%) minimizes heat rise in enclosed enclosures; 60-V input withstands transient surges on industrial DC buses. |
Use Scenario: Supplies 12-V power to RTUs, PLC I/O modules, and sensor interfaces in substation automation cabinets. IC Role / Device Role / Timing Role: Input-stage DC-DC converter accepting wide-range DC input (e.g., 24–60 V battery or rectified AC). Use Value: ±5% regulation ensures reliable operation across temperature extremes (–40°C to 125°C junction); thermal shutdown protects against enclosure overheating. |
| Factory Automation Controller | Building Management System |
Use Scenario: Provides regulated 12-V supply to programmable logic controller (PLC) backplane modules in harsh factory environments. IC Role / Device Role / Timing Role: Central point-of-load regulator converting unregulated 24-V DC to clean 12-V for digital I/O and communication ICs. Use Value: Cycle-by-cycle current limiting prevents latch-up during shorted field wiring; TO-220 package allows direct heatsinking to chassis. |
Use Scenario: Powers HVAC controllers, occupancy sensors, and network gateways in commercial buildings with variable DC input sources. IC Role / Device Role / Timing Role: Fixed-output buck regulator enabling compact, cost-effective power design for distributed edge nodes. Use Value: 50-μA standby current supports energy-saving sleep modes; 1-A output supports multiple low-power radios and sensors simultaneously. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2575HV-12 | Same 12-V fixed output, 1-A rating, and 60-V max input-but uses different internal compensation and has 46–54 kHz oscillator (vs. 47–58 kHz for TL2575HV). | Compatible in most layouts but may require minor loop stability verification due to differing phase margin characteristics. | Select when LM2575HV-12 is already qualified in legacy designs or preferred by procurement; verify startup behavior under light load. |
| TPS54202HDDCR | 2-A synchronous buck with 4.5–28-V input, 12-V adjustable output, and 500-kHz switching-requires external FETs and compensation. | Higher efficiency (>92%) and smaller solution size, but demands more design effort and lacks integrated thermal shutdown. | Choose for space-constrained, high-efficiency applications where board area and thermal performance outweigh simplicity. |
Compared with LM2575HV-12 and TPS54202HDDCR, TL2575HV-12IKV offers proven simplicity and ruggedness for industrial 12-V point-of-load conversion-requiring only four external components and delivering robust protection without design iteration.
Availability
TL2575HV-12IKV is available at Aetrix Electronics and suitable for motor drive power supplies, grid infrastructure monitoring, and factory automation controllers requiring stable component supply, long-term lifecycle support, and industrial-grade reliability.
Supply support for TL2575HV-12IKV 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 company specializing in analog and embedded processing technologies, with decades of leadership in power management ICs.
The TL2575HV family was designed specifically for rugged, low-component-count buck conversion in industrial, grid, and automation equipment-emphasizing wide-input operation, integrated protection, and ease of implementation.
FAQ
What is the maximum input voltage rating for TL2575HV-12IKV?
The TL2575HV-12IKV supports a maximum input voltage of 60 V, as specified in its absolute maximum ratings. This high input capability allows direct connection to 48-V DC distribution systems, rectified AC inputs, and automotive or industrial bus rails with transient headroom-making TL2575HV-12IKV suitable for demanding environments where input voltage spikes occur.
Does TL2575HV-12IKV require external feedback resistors?
No, TL2575HV-12IKV does not require external feedback resistors. As a fixed-output variant, its FEEDBACK pin is internally connected to the 12-V output stage. External resistors are only needed for the adjustable version (TL2575HV-ADJ); using them with TL2575HV-12IKV would disrupt regulation and is not supported.
What package type is used for TL2575HV-12IKV?
TL2575HV-12IKV uses the KV package-a TO-220 variant with staggered leads and an exposed metal tab electrically connected to GND. Its 10.16 mm × 8.82 mm footprint provides mechanical robustness and thermal conduction to heatsinks or PCB copper, supporting 1-A continuous operation without forced airflow.
How does the ON/OFF pin function on TL2575HV-12IKV?
The ON/OFF pin on TL2575HV-12IKV accepts TTL-level signals: grounding or applying ≤1 V enables normal operation, while applying ≥2.2 V places TL2575HV-12IKV into standby mode with 50-μA quiescent current. The pin must not be left floating and may be pulled up to VIN via a resistor for default-on behavior.
Is TL2575HV-12IKV RoHS compliant and lead-free?
Yes, TL2575HV-12IKV is RoHS compliant and lead-free per Texas Instruments' official product documentation and packaging markings. It meets JEDEC J-STD-020 moisture sensitivity level (MSL) 3 requirements and is qualified for industrial temperature operation (–40°C to 125°C junction).
TL2575HV-12IKV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- TO-220-5 Formed Leads
- Packaging:
- Tube
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.75V
- Voltage - Input (Max):
- 60V
- Voltage - Output (Min/Fixed):
- 12V
- Voltage - Output (Max):
- -
- Current - Output:
- 1A
- Frequency - Switching:
- 52kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220-5
TL2575HV-12IKV FAQ
1.How can I place an order for TL2575HV-12IKV through Aetrix?
Please submit a Request for Quotation (RFQ) for TL2575HV-12IKV 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 TL2575HV-12IKV reliable?
The price and inventory of TL2575HV-12IKV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL2575HV-12IKV is usually 5 days.
3.What payment methods are accepted for TL2575HV-12IKV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL2575HV-12IKV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL2575HV-12IKV?
TL2575HV-12IKV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL2575HV-12IKV 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 TL2575HV-12IKV?
For technical support, including TL2575HV-12IKV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL2575HV-12IKV requirements.
6.How does Aetrix verify that TL2575HV-12IKV is sourced from the original manufacturer or authorized distributors?
All TL2575HV-12IKV 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 TL2575HV-12IKV meets industry standards.
7.What is the process for return or replacement of TL2575HV-12IKV?
All TL2575HV-12IKV units undergo pre-shipment inspection (PSI). If there is an issue with TL2575HV-12IKV, 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 TL2575HV-12IKV part is unused and in its original packaging.
Return procedure for TL2575HV-12IKV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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