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Texas Instruments TL2575HV-05IKV
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- Part No.:
- TL2575HV-05IKV
- Manufacturer:
- Texas Instruments
- Package:
- TO-220-5 Formed Leads
- Datasheet:
-
TL2575HV-05IKV.pdf
- Description:
- IC REG BUCK 5V 1A TO220-5
- Quantity:
- Payment:
- Shipping:
Inventory:398
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Product details
Overview
TL2575HV-05IKV from Texas Instruments is a fixed-output 5-V, 1-A step-down (buck) switching voltage regulator IC with integrated 1-A power switch, 4.75 V to 60 V input range, ±5% output regulation over line/load/temperature, and 52-kHz fixed-frequency operation. It delivers high-efficiency DC/DC conversion in industrial motor drives and grid infrastructure power supplies.
For engineers reviewing the TL2575HV-05IKV datasheet, TL2575HV-05IKV pinout, TL2575HV-05IKV application, or TL2575HV-05IKV equivalent, key selection criteria include its 60-V absolute maximum input rating, TTL-compatible ON/OFF shutdown control, thermal/current protection, TO-220 staggered-lead package, and compatibility with standard off-the-shelf inductors.
Technical Context
The TL2575HV-05IKV implements a current-mode buck topology with internal 52-kHz oscillator, cycle-by-cycle current limiting, and thermal shutdown. Its error amplifier compares a fixed 1.23-V bandgap reference against the output via direct FEEDBACK connection, enabling stable regulation without external compensation components.
It operates in continuous conduction mode under full load and transitions to discontinuous mode below ~200 mA. The integrated switch exhibits 1.2-V typical saturation voltage at 1 A, and standby quiescent current is 50 μA when ON/OFF is pulled high.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5 V ±5% over –40°C to 125°C, 4.75–60 V input, 0.2–1 A load - ensures stable rail for microcontrollers and sensors without trimming. |
| Input Voltage Range | 4.75 V to 60 V - supports wide-range unregulated inputs including 48-V telecom, 36-V battery systems, and industrial 24-V/48-V rails. |
| Output Current | 1 A continuous - sufficient to power multiple digital ICs, small motors, or analog front-ends without external pass devices. |
| Switching Frequency | 52 kHz typical - enables use of low-cost, high-saturation-current toroidal or bobbin-core inductors (e.g., 330 µH) with minimal EMI filtering. |
| Efficiency | Up to 88% at 12-V input / 5-V output / 1-A load - reduces thermal load versus linear regulators, often eliminating heatsinks. |
| Shutdown Current | 50 µA typical - enables low-power sleep modes in battery-backed or energy-conscious systems. |
| Protection Features | Thermal shutdown + cycle-by-cycle current limiting - prevents damage during overload, short-circuit, or high-temperature operation. |
Pinout & Package
TL2575HV-05IKV is housed in a KV (TO-220 staggered leads) package with 5 pins, featuring exposed tab for thermal dissipation and mechanical mounting. Pin 1 (VIN) and Pin 3 (GND) are on one side; Pin 2 (OUTPUT), Pin 4 (FEEDBACK), and Pin 5 (ON/OFF) are staggered on the opposite side.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Unregulated DC input supply | Accepts 4.75–60 V; requires ≥100 µF input capacitor placed adjacent to minimize voltage spikes and EMI. |
| OUTPUT (Pin 2) | Regulated 5-V output | Drives 1-A load; connects to catch diode anode and output inductor; requires low-ESR bulk capacitor (≥330 µF). |
| GND (Pin 3) | Power and signal ground reference | Common return for VIN, OUTPUT, FEEDBACK, and ON/OFF; must be low-impedance path to minimize noise coupling. |
| FEEDBACK (Pin 4) | Output voltage sensing node | Internally connected to 5-V output; no external resistors required - simplifies layout and improves regulation accuracy. |
| ON/OFF (Pin 5) | TTL-compatible enable/shutdown control | Pull ≤1 V to enable; pull ≥2.2 V to enter 50-µA standby - allows system-level power sequencing and remote control. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 1-A power switch | Eliminates need for external MOSFET and gate driver - reduces BOM count and PCB area in compact designs. |
| Fixed 5-V output with ±5% tolerance | Guarantees compliance with 5-V logic and analog supply requirements across full temperature and load range - no calibration needed. |
| Wide 4.75–60 V input range | Supports direct connection to 48-V distribution buses, automotive cold-crank transients, and industrial unregulated supplies. |
| 52-kHz fixed-frequency operation | Enables predictable EMI spectrum and simplifies filter design using standard off-the-shelf inductors and capacitors. |
| TTL shutdown with 50-µA standby | Permits low-power system states without auxiliary LDOs or discrete FETs - ideal for battery-powered or energy-harvesting applications. |
Applications
| Industrial Motor Drives | Grid Infrastructure Power Supplies |
|---|---|
|
Use Scenario: Powering gate drivers, isolation logic, and sensor interfaces in 24-V/48-V motor control inverters. IC Role / Device Role / Timing Role: Primary 5-V buck regulator converting unregulated bus voltage to isolated logic supply. Use Value: Withstands 60-V transients common in motor commutation; 1-A output supports multiple isolated channels without derating. |
Use Scenario: Generating 5-V bias for protection relays, SCADA communication modules, and metering ICs in substation equipment. IC Role / Device Role / Timing Role: Input-stage DC/DC converter accepting wide-range AC-DC rectified inputs (e.g., 36–60 V). Use Value: ±5% regulation holds across –40°C to 125°C ambient - critical for outdoor deployment where thermal cycling affects component aging. |
| Factory Automation Controllers | Building Automation Systems |
|
Use Scenario: Supplying 5-V rail to PLC I/O modules, fieldbus transceivers (RS-485, CAN), and real-time microcontrollers. IC Role / Device Role / Timing Role: Central point-of-load regulator delivering clean, regulated 5 V from 24-V factory bus. Use Value: Thermal shutdown and cycle-by-cycle current limiting prevent latch-up during shorted I/O wiring faults - enhances system reliability. |
Use Scenario: Powering HVAC controllers, smart lighting nodes, and occupancy sensors operating from 24-V PoE or centralized building power. IC Role / Device Role / Timing Role: Efficient 5-V source replacing linear regulators to reduce heat buildup in enclosed enclosures. Use Value: 88% peak efficiency minimizes internal temperature rise - extends lifetime of electrolytic capacitors in thermally constrained spaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2575HV-5.0 | Same 5-V fixed output, 1-A rating, and 60-V max input, but uses different internal compensation and has higher 10-mA quiescent current. | Lacks TTL-compatible ON/OFF pin - requires external transistor for shutdown control. | Choose if legacy LM2575HV footprint compatibility is required and standby current is not critical. |
| TPS54160DGQ | Adjustable 0.8–60 V output, 1.5-A capability, 2.5–60 V input, but requires external MOSFET and compensation network. | Higher integration density and better light-load efficiency, but demands more design effort and validation. | Prefer for new designs needing adjustable output or tighter regulation (<±2%), accepting added complexity. |
Compared with LM2575HV-5.0, TL2575HV-05IKV offers lower standby current and integrated shutdown control; compared with TPS54160DGQ, it trades adjustability and peak current for plug-and-play simplicity and reduced external component count.
Availability
TL2575HV-05IKV is available at Aetrix Electronics and suitable for industrial motor drives, grid infrastructure power supplies, and factory automation controllers requiring stable component supply with long-term manufacturability and thermal robustness.
Supply support for TL2575HV-05IKV 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 and automotive power solutions.
The TL2575HV product line was designed specifically for rugged, high-input-voltage DC/DC conversion in industrial environments - emphasizing simplicity, thermal resilience, and minimal external component count.
FAQ
What is the maximum input voltage rating for TL2575HV-05IKV?
The TL2575HV-05IKV has an absolute maximum input voltage rating of 60 V, with recommended operating range from 4.75 V to 60 V. This high-voltage tolerance makes TL2575HV-05IKV suitable for applications involving 48-V battery systems, industrial 24/48-V buses, and rectified AC inputs where transient spikes may exceed nominal levels.
Does TL2575HV-05IKV require external feedback resistors?
No, TL2575HV-05IKV is a fixed 5-V output variant - the FEEDBACK pin is internally connected to the output, so no external resistors are needed. This eliminates resistor tolerance errors and simplifies layout, directly contributing to the ±5% output regulation specification across temperature and load conditions for TL2575HV-05IKV.
How does the ON/OFF pin function on TL2575HV-05IKV?
The ON/OFF pin on TL2575HV-05IKV accepts TTL-level signals: grounding or applying ≤1.0 V enables normal operation, while applying ≥2.2 V places TL2575HV-05IKV into standby mode with 50-μA quiescent current. This pin is not left floating and may be pulled up to VIN through a resistor for default-on behavior.
What package type is used for TL2575HV-05IKV?
TL2575HV-05IKV uses the KV package - a TO-220 variant with staggered leads and an exposed metal tab for thermal dissipation and mechanical mounting. Pin configuration is VIN (1), OUTPUT (2), GND (3), FEEDBACK (4), ON/OFF (5), with thermal resistance RθJA = 26.5°C/W.
Can TL2575HV-05IKV replace linear regulators like LM7805?
Yes, TL2575HV-05IKV is engineered as a high-efficiency drop-in replacement for 5-V linear regulators such as LM7805 in high-input-voltage applications. Unlike LM7805, TL2575HV-05IKV maintains >77% efficiency at 12-V input and eliminates heatsink requirements in most cases due to its switching architecture and thermal shutdown protection.
TL2575HV-05IKV Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- TO-220-5 Formed Leads
- Packaging:
- Bulk
- 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:
- Through Hole
- Supplier Device Package:
- TO-220-5
TL2575HV-05IKV FAQ
1.How can I place an order for TL2575HV-05IKV through Aetrix?
Please submit a Request for Quotation (RFQ) for TL2575HV-05IKV 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-05IKV reliable?
The price and inventory of TL2575HV-05IKV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL2575HV-05IKV is usually 5 days.
3.What payment methods are accepted for TL2575HV-05IKV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL2575HV-05IKV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL2575HV-05IKV?
TL2575HV-05IKV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL2575HV-05IKV 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-05IKV?
For technical support, including TL2575HV-05IKV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL2575HV-05IKV requirements.
6.How does Aetrix verify that TL2575HV-05IKV is sourced from the original manufacturer or authorized distributors?
All TL2575HV-05IKV 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-05IKV meets industry standards.
7.What is the process for return or replacement of TL2575HV-05IKV?
All TL2575HV-05IKV units undergo pre-shipment inspection (PSI). If there is an issue with TL2575HV-05IKV, 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-05IKV part is unused and in its original packaging.
Return procedure for TL2575HV-05IKV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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