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Texas Instruments TL2575HV-15IKV
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- Part No.:
- TL2575HV-15IKV
- Manufacturer:
- Texas Instruments
- Package:
- TO-220-5 Formed Leads
- Datasheet:
-
TL2575HV-15IKV.pdf
- Description:
- IC REG BUCK 15V 1A TO220-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,840
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Product details
Overview
TL2575HV-15IKV from Texas Instruments is a fixed-output 15-V, 1-A step-down (buck) switching voltage regulator IC with integrated 1-A power switch, ±5% output regulation over line/load/temperature, 4.75 V to 60 V input range, and 52-kHz fixed-frequency operation. It delivers high-efficiency DC-DC conversion in industrial power supplies requiring stable 15-V rail generation from wide-input unregulated sources.
For engineers reviewing the TL2575HV-15IKV datasheet, TL2575HV-15IKV pinout, TL2575HV-15IKV application, or TL2575HV-15IKV equivalent, key selection criteria include its 60-V absolute maximum input rating, thermal shutdown and cycle-by-cycle current limiting, TTL-compatible ON/OFF control with 50-μA standby current, and TO-220 (KV) package suitability for convection-cooled 1-A designs.
Technical Context
The TL2575HV-15IKV implements a monolithic buck converter architecture with internal 1-A N-channel MOSFET switch, fixed 52-kHz oscillator, and voltage-mode PWM control using a 1.23-V band-gap reference and error amplifier. Its feedback loop is internally compensated for stability with standard external components.
It operates in continuous conduction mode under full load and transitions to discontinuous mode below ~200 mA. Protection includes thermal shutdown, cycle-by-cycle peak-current limiting (3.6-A max), and undervoltage lockout-no external sensing or timing components required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 15 V ±5% (max) across –40°C to +125°C, 0.2–1 A load, 18–60 V input |
| Input Voltage Range | 4.75 V to 60 V - supports wide-range industrial/unregulated DC inputs including 48-V telecom and 36-V battery systems |
| Output Current | 1 A continuous - sufficient for powering logic rails, analog circuitry, or small motors without external pass devices |
| Switching Frequency | 52 kHz typical - enables use of low-cost, standard 330-μH inductors and simplifies EMI filtering vs. MHz-range converters |
| Efficiency | Up to 88% at 1 A - reduces thermal load versus linear regulators; eliminates heatsink in many convection-cooled applications |
| Standby Current | 50 μA typical - enables low-power shutdown mode via TTL-level ON/OFF pin for system-level power sequencing |
| Protection Features | Thermal shutdown, cycle-by-cycle current limiting, and internal soft-start - ensures robust operation during fault conditions without external circuitry |
Pinout & Package
TL2575HV-15IKV is packaged in the TO-220 (KV) staggered-lead variant: 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; requires ≥100-μF input capacitor placed adjacent to pin for stability and ripple suppression |
| OUTPUT (Pin 2) | Regulated 15-V output node | Drives 1-A load; connects to output inductor and catch diode anode; 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; ties to exposed tab |
| FEEDBACK (Pin 4) | Output voltage sense input | Internally connected to 15-V divider; for fixed version, directly tied to OUTPUT - no external resistors needed |
| ON/OFF (Pin 5) | TTL-compatible enable/disable control | Pull ≤1.2 V to enable; apply ≥2.2 V to enter 50-μA standby; not left floating - may be pulled to VIN via resistor |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 1-A power switch | Eliminates need for external MOSFET and gate driver; reduces BOM count and layout complexity in buck topologies |
| Fixed 15-V output with ±5% tolerance | Guarantees regulated rail without trimming or external feedback resistors - accelerates design and improves production yield |
| 60-V absolute maximum input rating | Supports transient-tolerant operation in 48-V systems and enables use in high-voltage industrial and grid infrastructure applications |
| 52-kHz fixed-frequency oscillator | Enables predictable EMI profile and simplifies filter design using off-the-shelf inductors and capacitors |
| TTL shutdown with 50-μA standby | Allows precise system-level power sequencing and low-quiescent-power sleep states without auxiliary control ICs |
Applications
| Industrial Motor Drives | Grid Infrastructure Power |
|---|---|
|
Use Scenario: Providing isolated 15-V gate drive supply for IGBTs in variable-frequency drives operating from 400-V DC bus with wide input transients. IC Role / Device Role / Timing Role: Primary buck regulator generating clean, regulated 15-V rail for high-side gate drivers and control logic. Use Value: 60-V input rating withstands bus transients; 88% efficiency minimizes heat in enclosed drive enclosures; thermal shutdown prevents latch-up during overload. |
Use Scenario: Generating 15-V auxiliary supply for protection relays and SCADA telemetry modules in substation battery-backed DC systems. IC Role / Device Role / Timing Role: Standalone step-down regulator converting 48-V or 60-V battery bank to stable 15-V control rail. Use Value: –40°C to +125°C junction rating ensures reliability in outdoor cabinets; 50-μA standby extends battery life during grid outage. |
| Factory Automation Controllers | Building Management Systems |
|
Use Scenario: Powering PLC I/O modules and sensor interfaces requiring tightly regulated 15-V analog supply in noisy factory environments. IC Role / Device Role / Timing Role: Local point-of-load regulator delivering low-noise 15-V rail with minimal external components. Use Value: Internal compensation and fixed frequency simplify layout; ±5% regulation maintains ADC reference accuracy across temperature swings. |
Use Scenario: Supplying 15-V power to HVAC controllers, actuator drivers, and network interface cards in commercial building automation panels. IC Role / Device Role / Timing Role: Main DC-DC converter for centralized 15-V distribution bus fed from 24-V or 48-V building backbone. Use Value: TO-220 package enables direct heatsinking to metal chassis; cycle-by-cycle current limiting protects against shorted field wiring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2575HV-15 | Same 15-V fixed output, 1-A rating, and 60-V max input, but uses different internal compensation and has higher quiescent current (11 mA vs. 5–10 mA) | Compatible in most legacy LM2575HV-15 layouts, but may require minor loop stability verification due to differing phase margin | Preferred where existing LM2575HV-15 reference designs exist and board re-spin is undesirable |
| TPS54160DGQ | Adjustable 15-V output possible via resistors; 60-V input, 1.5-A rating, but requires external MOSFET and more complex compensation | Offers higher current headroom and programmability, but increases component count and design effort for fixed 15-V use | Chosen when future voltage flexibility or >1-A capability is anticipated, accepting added design overhead |
Compared with LM2575HV-15, TL2575HV-15IKV offers lower quiescent current and tighter regulation; versus TPS54160DGQ, it delivers simpler implementation and lower BOM cost for fixed 15-V applications, trading off adjustability and peak current headroom.
Availability
TL2575HV-15IKV is available at Aetrix Electronics and suitable for industrial motor drives, grid infrastructure power systems, and factory automation controllers requiring stable component supply with long-term manufacturability and consistent parametric performance.
Supply support for TL2575HV-15IKV 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 TL2575HV product line was designed specifically for rugged, wide-input industrial and infrastructure applications where simplicity, thermal robustness, and long-term supply stability are critical - replacing linear regulators in 1-A buck implementations.
FAQ
What is the maximum input voltage rating for TL2575HV-15IKV?
The TL2575HV-15IKV 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 enables reliable operation in 48-V battery systems, industrial DC buses, and grid-connected equipment where input transients exceed standard 40-V buck regulator limits. Always observe derating guidelines per TI's SLVS638D datasheet.
Does TL2575HV-15IKV require external feedback resistors?
No, TL2575HV-15IKV is a fixed-output variant - its internal feedback divider is factory-trimmed for 15 V, and the FEEDBACK pin is internally connected to the output stage. External resistors are unnecessary; the FEEDBACK pin must be directly tied to the OUTPUT pin per the datasheet. Adding external resistors would disrupt regulation and is not supported.
How does the ON/OFF pin function on TL2575HV-15IKV?
The ON/OFF pin on TL2575HV-15IKV accepts TTL/CMOS logic levels: grounding or applying ≤1.2 V enables normal operation; applying ≥2.2 V places TL2575HV-15IKV into standby mode with 50-μA typical quiescent current. The pin must never be left floating - TI recommends pulling it to VIN via a 10-kΩ resistor if not actively driven.
What thermal performance can be expected from TL2575HV-15IKV in TO-220 package?
In the TO-220 (KV) package, TL2575HV-15IKV has a junction-to-ambient thermal resistance (RθJA) of 26.5°C/W. With proper PCB copper area (≥2 in²) and optional heatsink, it sustains 1-A continuous output at ambient temperatures up to +85°C without thermal shutdown. Derating is required above that - consult Figure 6-3 and Table 6.4 in the SLVS638D datasheet.
Is TL2575HV-15IKV pin-compatible with earlier TL2575-15 variants?
No - TL2575HV-15IKV uses the same TO-220 (KV) pinout as other TL2575HV variants, but differs electrically from standard TL2575-15 (max 40-V input). While mechanical pin alignment matches, substituting TL2575HV-15IKV into a TL2575-15 design risks overstress if input exceeds 40 V. Always verify input voltage range compatibility before replacement.
TL2575HV-15IKV 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):
- 15V
- 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-15IKV FAQ
1.How can I place an order for TL2575HV-15IKV through Aetrix?
Please submit a Request for Quotation (RFQ) for TL2575HV-15IKV 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-15IKV reliable?
The price and inventory of TL2575HV-15IKV are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL2575HV-15IKV is usually 5 days.
3.What payment methods are accepted for TL2575HV-15IKV?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL2575HV-15IKV transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL2575HV-15IKV?
TL2575HV-15IKV orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL2575HV-15IKV 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-15IKV?
For technical support, including TL2575HV-15IKV datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL2575HV-15IKV requirements.
6.How does Aetrix verify that TL2575HV-15IKV is sourced from the original manufacturer or authorized distributors?
All TL2575HV-15IKV 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-15IKV meets industry standards.
7.What is the process for return or replacement of TL2575HV-15IKV?
All TL2575HV-15IKV units undergo pre-shipment inspection (PSI). If there is an issue with TL2575HV-15IKV, 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-15IKV part is unused and in its original packaging.
Return procedure for TL2575HV-15IKV:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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