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Texas Instruments TL2575HV-05QKTTRQ1
- Part No.:
- TL2575HV-05QKTTRQ1
- Manufacturer:
- Texas Instruments
- Package:
- TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- Datasheet:
-
TL2575HV-05QKTTRQ1.pdf
- Description:
- IC REG BUCK 5V 1A TO263
- Quantity:
- Payment:
- Shipping:
Inventory:1,267
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Product details
Overview
TL2575HV-05QKTTRQ1 from Texas Instruments is a fixed-output 5-V, 1-A automotive-grade step-down (buck) switching voltage regulator in TO-263 (KTT) package. It operates across 4.75 V to 60 V input, delivers ±5% output regulation over line/load/temperature, and integrates a 52-kHz oscillator, cycle-by-cycle current limiting, thermal shutdown, and TTL-compatible ON/OFF control - used in pre-regulation for linear supplies and on-card DC/DC conversion in harsh environments.
For engineers reviewing the TL2575HV-05QKTTRQ1 datasheet, TL2575HV-05QKTTRQ1 pinout, TL2575HV-05QKTTRQ1 application, or TL2575HV-05QKTTRQ1 equivalent, this page delivers verified technical context, exact pin functions, real-world application constraints, and validated alternative options - all grounded in TI's SLVSAH9 datasheet and production-grade Q1 qualification.
Technical Context
The TL2575HV-05QKTTRQ1 implements a monolithic buck converter with internal NPN power switch, fixed-frequency 52-kHz oscillator, and built-in compensation - eliminating external frequency-setting components. Its feedback loop is internally configured for 5-V output, requiring only four external parts: input capacitor, output capacitor, catch diode, and inductor.
It supports automotive-grade operation from –40°C to 125°C virtual junction temperature, includes cycle-by-cycle current limiting (1.3–4 A peak), thermal shutdown, and TTL-level ON/OFF control with 50 µA typical standby current - enabling robust, low-component-count power conversion in safety-critical vehicle subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5 V ±5% (3.135–5.275 V over full line/load/temp range) |
| Max Output Current | 1 A continuous - sufficient for powering microcontrollers, sensors, and interface ICs without external current boosting |
| Input Voltage Range | 4.75 V to 60 V - supports 12 V/24 V/48 V automotive battery rails including cold-crank and load-dump transients |
| Switching Frequency | 52 kHz (typ), 42–63 kHz (min–max) - enables use of standard off-the-shelf inductors with minimal EMI filtering |
| Efficiency | 77% (typ at VIN = 12 V, IOUT = 1 A) - reduces thermal load vs. linear regulators, often eliminating heatsinks |
| Quiescent Current | 5–10 mA (active), 50–200 µA (standby) - enables low-power sleep modes in always-on vehicle modules |
| Protection Features | Thermal shutdown, cycle-by-cycle current limiting, and internal soft-start - prevents latch-up during overload or short-circuit events |
Pinout & Package
TL2575HV-05QKTTRQ1 uses a 5-pin DDPAK/TO-263 (KTT) thermally enhanced package with exposed tab tied to GND - optimized for high-current automotive applications requiring efficient heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply connection | Accepts 4.75–60 V; requires ≥47 µF low-ESR input capacitor placed adjacent to pin |
| GND | Power ground reference | Pin 3 and exposed tab are internally connected - both must be soldered to large copper pour for thermal and electrical integrity |
| OUT | Regulated output node | Delivers up to 1 A at 5 V; connects to output capacitor and catch diode anode |
| FEEDBACK | Output voltage sensing | Internally tied to 5-V reference; must be directly wired to OUT with short trace to avoid noise-induced regulation error |
| ON/OFF | Enable/disable control input | TTL-compatible: <0.8 V = ON, >2.4 V = OFF; 50 µA standby current when pulled high |
Key Features
| Feature | Design Value |
|---|---|
| Automotive AEC-Q100 Grade 1 qualification | Rated for –40°C to +125°C virtual junction temperature - suitable for engine bay, ADAS, and body control modules |
| Integrated 1-A NPN switch | Eliminates need for external MOSFET and gate driver - reduces BOM count and layout complexity |
| Fixed 5-V output with no external resistors | Removes feedback divider tolerance errors and PCB trace sensitivity - ensures stable ±5% regulation without trimming |
| 52-kHz fixed-frequency operation | Enables predictable EMI filtering and compatibility with low-cost, widely available inductors (e.g., 330 µH Schott/Pulse/Renco series) |
| TTL shutdown with µA standby | Supports system-level power sequencing and low-quiescent-power sleep states - critical for battery-backed vehicle modules |
Applications
| Infotainment Power Supply | ADAS Camera Module Pre-Regulator |
|---|---|
Use Scenario: Powers 5-V logic and analog circuitry in head-unit displays and audio processors under wide-input automotive battery conditions. IC Role / Device Role / Timing Role: Primary buck regulator converting 9–16 V battery rail to stable 5 V for SoC I/O, USB PHY, and audio codecs. Use Value: High efficiency (77% typ) minimizes thermal stress in sealed enclosures; 60 V max input withstands load-dump transients per ISO 7637-2. |
Use Scenario: Supplies clean 5-V bias to image sensor interfaces and ISP power domains in forward-facing cameras. IC Role / Device Role / Timing Role: Pre-regulator stepping down 12 V to 5 V before LDOs that feed noise-sensitive analog front-ends. Use Value: Fixed 5-V output eliminates resistor-divider drift; ±5% regulation ensures consistent sensor bias across temperature and aging. |
| Body Control Unit (BCU) Subsystem | Telematics Gateway Power Stage |
Use Scenario: Delivers 5 V to microcontroller peripherals, CAN transceivers, and LED drivers in door modules and lighting controllers. IC Role / Device Role / Timing Role: Central DC/DC stage providing isolated, regulated 5 V from unregulated vehicle battery bus. Use Value: Integrated thermal shutdown and current limiting protect against shorted wiring harnesses; TO-263 package enables direct heatsinking to chassis. |
Use Scenario: Powers 5-V domain of LTE/Wi-Fi modems and secure boot processors in cellular-connected telematics units. IC Role / Device Role / Timing Role: High-reliability buck converter supporting always-on connectivity with low standby current (50 µA). Use Value: AEC-Q100 Grade 1 qualification ensures longevity in hot under-dash environments; 4.75 V min input supports cold-crank operation down to 4.2 V. |
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/NOPB | Non-automotive catalog version; same pinout, 5-V fixed output, but rated only to 125°C junction (no AEC-Q100 qualification) | Lacks automotive reliability testing (HTOL, TC, UHAST); not approved for safety-critical vehicle systems | Select only for non-automotive industrial or prototyping use where AEC-Q100 is not required |
| TPS54302DDAR | 3-A synchronous buck with adjustable output (0.6–6 V), 2.5-MHz switching, and integrated high-side/low-side FETs | Higher current, smaller solution size, but requires external compensation and lacks fixed 5-V option - increases design effort | Choose when >1 A output or tighter regulation (<±1%) is needed; not drop-in compatible due to different pinout and control architecture |
Compared with LM2575HV-5.0/NOPB, TL2575HV-05QKTTRQ1 adds AEC-Q100 Grade 1 validation and extended temp support; versus TPS54302DDAR, it trades higher integration for simpler design, lower cost, and guaranteed 5-V accuracy - ideal for cost-sensitive, volume automotive applications.
Availability
TL2575HV-05QKTTRQ1 is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera modules, and body control units requiring stable component supply with full AEC-Q100 compliance and long-term lifecycle assurance.
Supply support for TL2575HV-05QKTTRQ1 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 automotive-grade power management ICs - with decades of automotive qualification expertise and broad manufacturing scale.
The TL2575HV-Q1 product line delivers rugged, low-BOM-count buck regulators specifically engineered for automotive subsystems demanding high input voltage tolerance, thermal resilience, and functional safety readiness - targeting body electronics, lighting, and infotainment power rails.
FAQ
What is the maximum input voltage rating for TL2575HV-05QKTTRQ1?
The TL2575HV-05QKTTRQ1 supports a maximum input voltage of 60 V, as specified in its absolute maximum ratings. This allows reliable operation across automotive battery rails including 12 V, 24 V, and 48 V systems - and withstands transient overvoltages such as ISO 7637-2 Pulse 5a (load dump up to 60 V). Operation above 60 V risks permanent device damage.
Does TL2575HV-05QKTTRQ1 require external feedback resistors?
No, TL2575HV-05QKTTRQ1 does not require external feedback resistors. It is a fixed 5-V output variant with internal voltage reference and feedback network. The FEEDBACK pin is internally connected to the 5-V reference and must be directly wired to the OUT pin - no external resistor divider is needed or supported.
What package type and thermal characteristics does TL2575HV-05QKTTRQ1 use?
TL2575HV-05QKTTRQ1 uses the TO-263 (KTT) package - a 5-pin DDPAK with exposed thermal pad electrically and thermally connected to GND. Its thermal resistance is θJA = 26.5°C/W (high-K board) and θJC = 31.8°C/W, enabling effective heat transfer to PCB copper pours or heatsinks - critical for sustained 1-A operation in automotive ambient temperatures up to 105°C.
Is TL2575HV-05QKTTRQ1 qualified for automotive applications?
Yes, TL2575HV-05QKTTRQ1 is AEC-Q100 Grade 1 qualified, rated for operation from –40°C to +125°C virtual junction temperature. It undergoes rigorous automotive reliability testing including HTOL, temperature cycling, and unbiased HAST - making it suitable for engine compartment, cabin, and ADAS applications where long-term reliability under thermal stress is mandatory.
How does the ON/OFF pin function on TL2575HV-05QKTTRQ1?
The ON/OFF pin on TL2575HV-05QKTTRQ1 provides TTL-compatible enable control: grounding or applying <0.8 V turns the regulator ON; applying >2.4 V places it in standby mode with 50–200 µA quiescent current. The pin must never be left floating - it can be safely pulled up to VIN via a resistor or driven directly by a microcontroller GPIO.
TL2575HV-05QKTTRQ1 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-263 (DDPAK-5)
TL2575HV-05QKTTRQ1 FAQ
1.How can I place an order for TL2575HV-05QKTTRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TL2575HV-05QKTTRQ1 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-05QKTTRQ1 reliable?
The price and inventory of TL2575HV-05QKTTRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TL2575HV-05QKTTRQ1 is usually 5 days.
3.What payment methods are accepted for TL2575HV-05QKTTRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TL2575HV-05QKTTRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TL2575HV-05QKTTRQ1?
TL2575HV-05QKTTRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TL2575HV-05QKTTRQ1 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-05QKTTRQ1?
For technical support, including TL2575HV-05QKTTRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TL2575HV-05QKTTRQ1 requirements.
6.How does Aetrix verify that TL2575HV-05QKTTRQ1 is sourced from the original manufacturer or authorized distributors?
All TL2575HV-05QKTTRQ1 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-05QKTTRQ1 meets industry standards.
7.What is the process for return or replacement of TL2575HV-05QKTTRQ1?
All TL2575HV-05QKTTRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TL2575HV-05QKTTRQ1, 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-05QKTTRQ1 part is unused and in its original packaging.
Return procedure for TL2575HV-05QKTTRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TL2575HV-05QKTTRQ1 Tags
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