TL2575HV-33QKTTRQ1 Texas Instruments Integrated Circuit (Other) In Stock
TL2575HV-33QKTTRQ1 is a fixed 3.3 V, 1 A step-down switching regulator from Texas Instruments with a wide input voltage range of 4.75 V to 60 V in a TO-263-6 surface-mount package, designed for automotive and industrial power conversion. Available from stock worldwide with competitive pricing.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 4
- Lifecycle
- ACTIVE
- Datasheet
- TL2575HV-33QKTTRQ1 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.2100(MOQ 87)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Fixed 3.3 V output voltage with 1 A continuous output current and voltage-mode PWM control for stable regulation across wide load range
- Wide input voltage range of 4.75 V to 60 V supporting automotive 12 V, 24 V, and 48 V bus architectures in a single design
- TO-263-6 surface-mount package with RoHS-compliant e3 lead-free construction and AEC-Q100 automotive qualification for harsh-environment deployments
Applications
The TL2575HV-33QKTTRQ1 provides robust 3.3 V power conversion from high-voltage automotive and industrial supply rails up to 60 V, making it ideal for body control modules, industrial sensor nodes, and off-road vehicle electronics requiring a reliable 1 A, 3.3 V rail from a 12 V or 24 V bus. Its simple external component count — requiring only an inductor, diode, and capacitors — minimizes BOM complexity for cost-sensitive designs in energy meters, automotive lighting controllers, and HVAC system power supplies.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Input Voltage-Max | 60V |
| Input Voltage-Min | 4.75V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PSSO-G5 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 1A |
| Output Voltage-Max | 3.3V |
| Output Voltage-Min | 3.3V |
| Output Voltage-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SMSIP5H,.6,67TB |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 245 |
| Qualification Status | Not Qualified |
| Screening Level | AEC-Q100 |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 58kHz |
| Technology | BIPOLAR |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.7mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Can TL2575HV-33QKTTRQ1 regulate from a 48 V automotive bus and what efficiency should be expected?
Yes, TL2575HV-33QKTTRQ1 accepts input voltages up to 60 V, making it fully compatible with 48 V mild-hybrid automotive bus systems. At 48 V input converting to 3.3 V at 1 A, the step-down ratio is approximately 14.5:1 and efficiency typically falls between 70% and 80%, depending on inductor and diode selection. A Schottky diode and a 330 µH inductor are commonly recommended to maximize efficiency at this operating point.
What is the minimum recommended inductor value for stable operation of TL2575HV-33QKTTRQ1 at 1 A output?
Texas Instruments recommends an inductor in the range of 68 µH to 330 µH for TL2575HV-33QKTTRQ1 operating at its internal 52 kHz switching frequency with a 3.3 V output and 1 A load. A 220 µH inductor rated for at least 1.5 A saturation current provides a practical balance between ripple current below 200 mA peak-to-peak and compact physical size for board space-limited automotive and industrial designs.
How does TL2575HV-33QKTTRQ1 compare to TL2575-33 for 24 V industrial applications?
The TL2575HV-33QKTTRQ1 is the high-voltage variant rated to 60 V input, while the standard TL2575-33 is limited to 40 V input maximum. For 24 V nominal industrial supplies that can surge to 36 V or higher during load dump, the HV variant provides a 20 V extra margin and adds AEC-Q100 automotive qualification. Both deliver fixed 3.3 V at 1 A with identical 52 kHz switching and the same TO-263 footprint, so migration is a direct drop-in replacement on existing PCB layouts.
What output capacitor value stabilizes the TL2575HV-33QKTTRQ1 feedback loop and minimizes output voltage ripple?
Texas Instruments recommends an output capacitor of at least 100 µF with an ESR below 0.1 ohm for stable closed-loop operation and output ripple below 50 mV at 1 A load. A 220 µF electrolytic capacitor in parallel with a 10 µF ceramic capacitor is a widely used combination that provides adequate phase margin at the 52 kHz switching frequency while keeping the 3.3 V output voltage variation within ±2% under step-load transients.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 87+ | $3.4500 | $300.15 |
| 500+ | $2.4800 | $1240.00 |
| 1000+ | $2.3500 | $2350.00 |
| 10000+ | $2.2100 | $22100.00 |
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