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Texas Instruments TL2575HV-05IN
- Part No.:
- TL2575HV-05IN
- Manufacturer:
- Texas Instruments
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
TL2575HV-05IN.pdf
- Description:
- IC REG BUCK 5V 1A 16PDIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,365
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Product details
Overview
TL2575HV-05IN from Texas Instruments is a fixed-output 5-V, 1-A step-down (buck) switching voltage regulator 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 for industrial power rails requiring robust input voltage tolerance and minimal external components.
For engineers reviewing the TL2575HV-05IN datasheet, TL2575HV-05IN pinout, TL2575HV-05IN application, or TL2575HV-05IN equivalent, key selection criteria include its 60-V absolute maximum input rating, ON/OFF shutdown capability (50-μA standby), thermal/current protection, TO-220-5 package thermal performance (RθJA = 26.5°C/W), and compatibility with standard 330-μH inductors and aluminum electrolytic capacitors.
Technical Context
The TL2575HV-05IN 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.
It operates in continuous conduction mode under full load (1 A) and transitions to discontinuous mode below ~200 mA. The integrated switch exhibits 0.9–1.4 V saturation voltage across temperature, and the ON/OFF pin accepts TTL/CMOS logic levels for precise system-level power sequencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 5 V ±5% over –40°C to 125°C, 8 V ≤ VIN ≤ 60 V, 0.2 A ≤ ILOAD ≤ 1 A |
| Input voltage range | 4.75 V to 60 V - supports wide industrial DC inputs including 48-V telecom, battery stacks, and unregulated rectified supplies |
| Output current | 1 A continuous - sufficient for powering microcontrollers, sensors, and interface ICs without external boost stages |
| Switching frequency | 52 kHz typical - enables use of low-cost, standard 330-μH inductors and reduces EMI filtering complexity |
| Efficiency | Up to 88% at 12 VIN/5 VOUT/1 A - minimizes thermal dissipation vs. linear regulators, often eliminating heatsinks |
| Standby current | 50 μA typical at OFF state - enables ultra-low-power sleep modes in battery-backed or energy-harvesting systems |
| Protection features | Thermal shutdown + cycle-by-cycle current limiting - prevents damage during overload, short-circuit, or ambient overheating |
Pinout & Package
TL2575HV-05IN is supplied in the KV (TO-220, staggered leads) 5-pin package with exposed tab for thermal conduction. Pin 1 = VIN, Pin 2 = OUTPUT, Pin 3 = GND, Pin 4 = FEEDBACK, Pin 5 = ON/OFF. The tab is electrically connected to Pin 3 (GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Unregulated DC input supply | Accepts 4.75–60 V; requires local 100-μF input capacitor for stability and RMS ripple handling |
| OUTPUT (Pin 2) | Regulated 5-V power output | Drives 1-A load; connects to catch diode anode and output inductor; requires 330-μF low-ESR capacitor |
| GND (Pin 3) | Power and signal reference ground | Common return for input/output paths and thermal pad; must be low-impedance for noise control and thermal relief |
| FEEDBACK (Pin 4) | Output voltage sensing node | Internally tied to 5-V output; no external resistor network required for fixed-voltage operation |
| ON/OFF (Pin 5) | Logic-controlled enable/disable input | ≤1.2 V = active; ≥2.2 V = shutdown (50-μA IQ); must not float - tie to GND or pull up to VIN via resistor |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 1-A power switch | Eliminates need for external MOSFET and gate driver; simplifies layout and reduces BOM count by ≥4 components |
| Fixed 5-V output with ±5% accuracy | Guaranteed regulation across full operating range (–40°C to 125°C, 8–60 VIN, 0.2–1 A), reducing post-regulation validation effort |
| TTL-compatible ON/OFF control | Enables seamless integration with microcontroller GPIO or system PMIC for coordinated power sequencing and low-power states |
| Internal frequency compensation | Permits stable operation with only four external parts (CIN, COUT, L, D) - no loop compensation design required |
| Thermal shutdown + current limiting | Self-protecting under fault conditions; avoids catastrophic failure without external circuitry or fusing |
Applications
| Industrial Motor Drives | Grid Infrastructure Monitoring |
|---|---|
|
Use Scenario: Powering gate drivers, isolated ADCs, and MCU peripherals in 24–48-V DC-fed motor control modules. IC Role / Device Role / Timing Role: Primary 5-V buck regulator supplying logic and analog subsystems; provides clean, regulated rail independent of bus voltage fluctuations. Use Value: Withstands 60-V transients common in motor commutation; 88% efficiency reduces heat in enclosed enclosures; ON/OFF pin enables dynamic power gating during idle cycles. |
Use Scenario: Converting unregulated 48-V telecom or solar-derived DC to stable 5-V for RTU telemetry, sensor interfaces, and wireless modems. IC Role / Device Role / Timing Role: Input-tolerant DC/DC stage delivering isolated, low-noise 5-V power to communication ICs and precision analog front-ends. Use Value: 60-V max input accommodates surge events per IEC 61000-4-5; ±5% regulation ensures reliable UART/SPI timing margins; thermal shutdown protects during outdoor ambient extremes. |
| Factory Automation PLC I/O | Building Management Systems |
|
Use Scenario: Generating 5-V logic supply for digital input/output modules in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Central point-of-load regulator converting 24-V field bus to 5-V for optocouplers, level shifters, and FPGA configuration circuits. Use Value: TO-220 package enables direct heatsinking to metal chassis; 1-A capacity supports multiple parallel I/O channels; 52-kHz switching avoids audible noise in occupied spaces. |
Use Scenario: Powering HVAC controllers, occupancy sensors, and smart thermostats operating from 24-VAC-derived DC rails. IC Role / Device Role / Timing Role: High-reliability 5-V source for embedded processors, Zigbee/Thread radios, and environmental sensor arrays in wall-mounted units. Use Value: Guaranteed operation from –40°C to 125°C junction enables deployment in attics, basements, and mechanical rooms; low 50-μA standby extends battery backup duration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2575HVS-5.0/NOPB | Same 5-V fixed output, 1-A rating, and 60-V max input; differs in pinout (TO-220-5 vs. TO-220-5), but identical functional mapping; slightly higher RθJA (30°C/W vs. 26.5°C/W) | Valid drop-in replacement where thermal margin allows; same external component values and layout footprint | Select when LM2575HVS-5.0/NOPB is preferred for second-source assurance or existing inventory alignment |
| TPS54202DRCT | 2-A synchronous buck with 3–28 V input, 5-V adjustable output; requires external compensation; 500-kHz switching; no integrated catch diode needed | Better suited for space-constrained designs needing higher current or smaller magnetics; lacks 60-V input tolerance | Choose for new designs prioritizing size/efficiency over input voltage range; not suitable for 48-V+ systems |
Compared with LM2575HVS-5.0/NOPB, TL2575HV-05IN offers lower thermal resistance for higher ambient operation; versus TPS54202DRCT, it trades higher current and frequency for superior input voltage resilience and simpler design - making TL2575HV-05IN optimal for ruggedized industrial power rails.
Availability
TL2575HV-05IN is available at Aetrix Electronics and suitable for industrial motor drives, grid infrastructure monitoring, and factory automation PLC I/O requiring stable component supply with long-term manufacturability and consistent parametric performance.
Supply support for TL2575HV-05IN 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 industrial power solutions.
The TL2575HV family was designed specifically for rugged industrial and infrastructure applications demanding wide-input-voltage DC/DC conversion with minimal external components and robust fault protection.
FAQ
What is the maximum input voltage rating for the TL2575HV-05IN?
The TL2575HV-05IN has an absolute maximum input voltage rating of 60 V, with recommended operating range from 4.75 V to 60 V. This high input tolerance enables direct use with 48-V battery systems, rectified AC lines, and industrial DC buses subject to transient overvoltage events - a key differentiator from standard 40-V buck regulators like the TL2575-05IN.
Does the TL2575HV-05IN require external feedback resistors to set the output voltage?
No. The TL2575HV-05IN is a fixed-output variant: its internal feedback network is pre-configured for 5 V, and the FEEDBACK pin (Pin 4) must be directly connected to the OUTPUT pin. External resistors are only required for the adjustable TL2575HV-ADJ version - removing this requirement simplifies design, improves accuracy, and eliminates resistor tolerance drift effects on regulation.
How does the ON/OFF pin function on the TL2575HV-05IN?
The ON/OFF pin (Pin 5) provides TTL-compatible enable control: grounding or applying ≤1.2 V activates regulation; applying ≥2.2 V places TL2575HV-05IN in standby mode with 50-μA quiescent current. The pin must never be left floating - TI recommends tying it to GND for always-on operation or pulling up to VIN through a resistor for controlled shutdown.
What thermal performance can be expected from the TL2575HV-05IN in TO-220 package?
In the KV (TO-220) package, TL2575HV-05IN has a junction-to-ambient thermal resistance (RθJA) of 26.5°C/W with standard PCB copper area. When mounted to a heatsink or metal chassis, its junction temperature remains within safe limits (<125°C) delivering 1 A at 60-V input and 25°C ambient - enabling operation without additional heatsinking in many industrial enclosures.
Which external components are mandatory for basic operation of the TL2575HV-05IN?
Four mandatory external components are required: an input capacitor (≥100 μF aluminum electrolytic), output capacitor (≥330 μF low-ESR aluminum), power inductor (330 μH), and catch diode (Schottky, e.g., 1N5819). These form the core buck converter stage; no compensation network or feedback divider is needed due to the fixed 5-V configuration and internal frequency compensation of TL2575HV-05IN.
TL2575HV-05IN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-DIP (0.300", 7.62mm)
- 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:
- 16-PDIP
TL2575HV-05IN FAQ
1.How can I place an order for TL2575HV-05IN through Aetrix?
Please submit a Request for Quotation (RFQ) for TL2575HV-05IN 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-05IN reliable?
The price and inventory of TL2575HV-05IN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL2575HV-05IN is usually 5 days.
3.What payment methods are accepted for TL2575HV-05IN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL2575HV-05IN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL2575HV-05IN?
TL2575HV-05IN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL2575HV-05IN 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-05IN?
For technical support, including TL2575HV-05IN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL2575HV-05IN requirements.
6.How does Aetrix verify that TL2575HV-05IN is sourced from the original manufacturer or authorized distributors?
All TL2575HV-05IN 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-05IN meets industry standards.
7.What is the process for return or replacement of TL2575HV-05IN?
All TL2575HV-05IN units undergo pre-shipment inspection (PSI). If there is an issue with TL2575HV-05IN, 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-05IN part is unused and in its original packaging.
Return procedure for TL2575HV-05IN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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