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Texas Instruments TL2575HV-05IKTTR
- Part No.:
- TL2575HV-05IKTTR
- Manufacturer:
- Texas Instruments
- Package:
- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- Datasheet:
-
TL2575HV-05IKTTR.pdf
- Description:
- IC REG BUCK 5V 1A TO263
- Quantity:
- Payment:
- Shipping:
Inventory:3,047
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Product details
Overview
TL2575HV-05IKTTR from Texas Instruments is a fixed 5-V, 1-A step-down (buck) switching voltage regulator in TO-263-5 package, featuring 4.75 V to 60 V input range, ±5% output regulation over line/load/temperature, 52-kHz fixed-frequency operation, and TTL-compatible ON/OFF shutdown control. It delivers high-efficiency power conversion for industrial DC-DC supplies requiring robust input voltage tolerance.
For engineers reviewing the TL2575HV-05IKTTR datasheet, TL2575HV-05IKTTR pinout, TL2575HV-05IKTTR application, or TL2575HV-05IKTTR equivalent, key selection criteria include its 60-V absolute maximum input rating, integrated 1-A switch with cycle-by-cycle current limiting, thermal shutdown protection, 50-μA standby current, and compatibility with standard off-the-shelf inductors and Schottky catch diodes.
Technical Context
The TL2575HV-05IKTTR integrates a fixed-gain error amplifier, 1.23-V band-gap reference, 52-kHz oscillator, and MOSFET driver in a monolithic buck controller architecture. Its internal compensation eliminates external compensation components, and the feedback pin is internally connected to the 5-V output for fixed-voltage operation.
It operates in continuous conduction mode under full load and transitions to discontinuous mode below ~200 mA. Protection includes thermal shutdown, cycle-by-cycle current limiting, and undervoltage lockout - all implemented without external circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5 V ±5% over –40°C to +125°C, line (4.75–60 V), and load (0.2–1 A) |
| Input Voltage Range | 4.75 V to 60 V - supports wide industrial input rails including 48-V telecom and 36-V battery systems |
| Output Current | 1 A continuous - sufficient for powering microcontrollers, sensors, and logic circuits without external boost |
| Switching Frequency | 52 kHz typical - enables use of low-cost, high-saturation-current inductors and reduces EMI filtering complexity |
| Standby Current | 50 μA typical - allows ultra-low-power shutdown in battery-backed or energy-sensitive applications |
| Efficiency | Up to 88% at 12-V input / 5-V / 1-A - minimizes thermal dissipation and eliminates heatsink in many designs |
| Protection Features | Thermal shutdown, cycle-by-cycle current limiting, and internal soft-start - no external fault-handling circuitry required |
Pinout & Package
TL2575HV-05IKTTR uses the TO-263-5 (KTT) thermally enhanced surface-mount package (10.16 mm × 8.93 mm), with exposed thermal pad for improved heat dissipation. Pin numbering follows top-view orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Power Input | Accepts unregulated DC input up to 60 V; requires local 100-μF electrolytic bypass capacitor |
| OUTPUT (Pin 2) | Regulated Output | Delivers 5-V/1-A switched output; connects to output inductor and catch diode anode |
| GND (Pin 3) | Power Ground | Main return path for input/output currents; ties to thermal pad for optimal thermal performance |
| FEEDBACK (Pin 4) | Internal Reference Tap | Internally tied to 5-V output - no external resistor divider needed for fixed-voltage operation |
| ON/OFF (Pin 5) | Shutdown Control | TTL/CMOS-compatible enable: <1.6 V = active, >2.2 V = standby (50-μA IQ) |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 1-A Power Switch | Eliminates need for external MOSFET and gate driver - reduces BOM count and layout area |
| Fixed-Frequency 52-kHz Operation | Enables predictable EMI spectrum and simplifies filter design versus variable-frequency alternatives |
| Wide 4.75–60-V Input Range | Supports direct connection to 48-V industrial buses, automotive cold-crank transients, and solar arrays |
| TTL Shutdown with 50-μA Standby | Allows system-level power sequencing and battery runtime extension without auxiliary circuitry |
| Internal Compensation & Soft-Start | Reduces design iteration time - no external compensation network or startup timing components required |
Applications
| Industrial Motor Drives | Grid Infrastructure Monitoring |
|---|---|
|
Use Scenario: Powering gate drivers and isolated ADCs in 24-V/48-V motor control inverters. IC Role / Device Role / Timing Role: Primary 5-V supply for logic, sensing, and communication subsystems. Use Value: Withstands 60-V transients during IGBT switching and maintains regulation during bus dips. |
Use Scenario: Providing stable 5-V bias to RTUs, PLC I/O modules, and smart metering ICs in substations. IC Role / Device Role / Timing Role: Non-isolated point-of-load regulator downstream of AC/DC front-end. Use Value: Delivers 1-A output with ±5% accuracy across –40°C to +85°C ambient, meeting IEC 61000-4 immunity requirements. |
| Factory Automation Sensors | Building Management Systems |
|
Use Scenario: Powering 4–20-mA transmitter circuits, temperature/humidity sensors, and CAN transceivers on DIN-rail controllers. IC Role / Device Role / Timing Role: Centralized 5-V rail generator for analog and digital signal conditioning. Use Value: 52-kHz switching frequency avoids interference with 50/60-Hz mains harmonics in sensor signal chains. |
Use Scenario: Supplying HVAC controllers, occupancy sensors, and lighting ballasts in commercial buildings. IC Role / Device Role / Timing Role: High-reliability DC-DC converter for always-on monitoring subsystems. Use Value: Thermal shutdown and current limiting protect against sustained overload during actuator faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2596HV-5.0 | 63-V max input, 3-A output, 150-kHz switching - higher current but greater EMI and layout sensitivity | Preferred where >1-A load or tighter output ripple (<30 mV) is required; needs more aggressive filtering | Choose LM2596HV-5.0 only if peak load exceeds 1 A or if higher efficiency above 24-V input is critical. |
| TPS54202HDDCR | 2.95–60-V input, 2-A output, 400-kHz sync FET - smaller solution size but requires external compensation | Better suited for space-constrained PCBs and noise-sensitive applications due to adjustable frequency and spread spectrum | Choose TPS54202HDDCR when board area is limited or when EMI compliance mandates programmable frequency. |
Compared with LM2596HV-5.0 and TPS54202HDDCR, TL2575HV-05IKTTR offers simpler implementation with internal compensation and lower component count, making it ideal for cost-sensitive, thermally demanding industrial applications where 1-A output and 52-kHz predictability are sufficient.
Availability
TL2575HV-05IKTTR is available at Aetrix Electronics and suitable for industrial motor drives, grid infrastructure monitoring, and factory automation sensors requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for TL2575HV-05IKTTR 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 experience in high-reliability industrial power solutions.
TL2575HV-05IKTTR belongs to TI's legacy high-voltage buck regulator product line, designed specifically for ruggedized industrial and infrastructure applications demanding wide-input operation, integrated protection, and minimal external components.
FAQ
What is the maximum input voltage rating for TL2575HV-05IKTTR?
The TL2575HV-05IKTTR has an absolute maximum input voltage rating of 60 V, with recommended operating range from 4.75 V to 60 V. This high input capability enables direct use with 48-V industrial buses and withstands transient overvoltages common in motor drive and grid-tied systems. Exceeding 60 V risks permanent damage per the device's Absolute Maximum Ratings table.
Does TL2575HV-05IKTTR require external feedback resistors?
No, TL2575HV-05IKTTR does not require external feedback resistors. As a fixed 5-V output variant, its FEEDBACK pin is internally connected to the OUTPUT pin. External resistors are only needed for the adjustable versions (e.g., TL2575HV-ADJ); adding them to TL2575HV-05IKTTR would disrupt regulation and is not supported.
How does the ON/OFF pin function on TL2575HV-05IKTTR?
The ON/OFF pin on TL2575HV-05IKTTR provides TTL-compatible shutdown control: grounding or applying <1.6 V enables normal operation, while applying >2.2 V places the device in 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-enable behavior.
What thermal considerations apply to TL2575HV-05IKTTR in TO-263-5 package?
TL2575HV-05IKTTR in TO-263-5 (KTT) package has a junction-to-ambient thermal resistance (RθJA) of 26.5°C/W. To maintain safe operation at 1-A load, the PCB must provide adequate copper area under the exposed thermal pad and minimize ambient temperature rise. Derating is required above +125°C junction temperature, where thermal shutdown activates.
Can TL2575HV-05IKTTR replace linear regulators like LM7805 in high-input applications?
Yes, TL2575HV-05IKTTR is explicitly positioned as a high-efficiency replacement for three-terminal linear regulators such as LM7805 in applications with input voltages >12 V. Unlike LM7805, it supports up to 60-V input and achieves up to 88% efficiency - eliminating heatsinks in most cases and enabling operation where linear regulators would thermally fail.
TL2575HV-05IKTTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- 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):
- 4.75V
- Voltage - Input (Max):
- 60V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 1A
- Frequency - Switching:
- 52kHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263 (DDPAK-5)
TL2575HV-05IKTTR FAQ
1.How can I place an order for TL2575HV-05IKTTR through Aetrix?
Please submit a Request for Quotation (RFQ) for TL2575HV-05IKTTR 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-05IKTTR reliable?
The price and inventory of TL2575HV-05IKTTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL2575HV-05IKTTR is usually 5 days.
3.What payment methods are accepted for TL2575HV-05IKTTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL2575HV-05IKTTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL2575HV-05IKTTR?
TL2575HV-05IKTTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL2575HV-05IKTTR 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-05IKTTR?
For technical support, including TL2575HV-05IKTTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL2575HV-05IKTTR requirements.
6.How does Aetrix verify that TL2575HV-05IKTTR is sourced from the original manufacturer or authorized distributors?
All TL2575HV-05IKTTR 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-05IKTTR meets industry standards.
7.What is the process for return or replacement of TL2575HV-05IKTTR?
All TL2575HV-05IKTTR units undergo pre-shipment inspection (PSI). If there is an issue with TL2575HV-05IKTTR, 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-05IKTTR part is unused and in its original packaging.
Return procedure for TL2575HV-05IKTTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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