TPS75815KC Texas Instruments Integrated Circuit (Transistor Outline, Vertical) In Stock
TPS75815KC is a fixed 1.5 V fast-transient LDO linear regulator with 150 mV typical dropout voltage and 5.5 V maximum input. High output current capability with 300 mV maximum dropout suits DSP and FPGA core voltage rails. Available in TO-263-5 KC package with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Transistor Outline, Vertical
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- TPS75815KC Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.2500(MOQ 3)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS75815KC?
- 150 mV typical dropout voltage enables 1.5 V regulation from 1.65 V input, maximizing battery or intermediate bus utilization in DSP power sequences
- Fast transient response suppresses load steps from DSP and FPGA dynamic current demands without requiring large external output capacitors
- Fixed 1.5 V output with 2.8 V to 5.5 V input range supports direct regulation from 3.3 V or 5 V system rails with minimal heat dissipation
- TO-263-5 power package with exposed metal tab provides superior thermal dissipation for high-current LDO applications on standard PCBs
What is TPS75815KC used for?
TPS75815KC provides a clean, low-noise 1.5 V core supply for DSP processors, FPGAs, and DDR memory in embedded computing and communications boards where fast load transients require a regulator with tight output accuracy and low dropout. Its 2.8 V to 5.5 V input range allows operation directly from a 3.3 V bus or USB 5 V rail, reducing the number of power conversion stages in multi-rail board designs. The TO-263-5 package with exposed thermal pad efficiently dissipates heat during sustained high-current operation on standard FR4 PCBs in industrial and telecom equipment.
What are the specifications of TPS75815KC?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.3V |
| Dropout Voltage1-Nom | 0.15V |
| Input Voltage Absolute-Max | 6V |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 2.8V |
| JESD-30 Code | R-PSFM-T5 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.0045% |
| Load Regulation-Max | 0.00225% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 3A |
| Output Voltage1-Max | 1.545V |
| Output Voltage1-Min | 0.045V |
| Output Voltage1-Nom | 1.5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SIP5,.1,67TB |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Packing Method | TUBE |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | NO |
| Technology | CMOS |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 1.7mm |
| Terminal Position | SINGLE |
| Voltage Tolerance-Max | 3% |
| Package | Transistor Outline, Vertical |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the TPS75815KC datasheet?
TPS75815KC Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS75815KC?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the dropout voltage of TPS75815KC at its rated output current and why does it matter for 3.3 V input designs?
TPS75815KC has a typical dropout voltage of 150 mV and a maximum of 300 mV, meaning the input supply must be at least 1.8 V to maintain regulation at 1.5 V output. When powered from a 3.3 V rail, the 1.75 V headroom is more than sufficient, keeping the LDO in regulation even during load transients and input voltage dips of several hundred millivolts.
How does TPS75815KC handle the fast load transients typical of DSP and FPGA core current demand?
TPS75815KC is designed for fast transient response, quickly recovering the 1.5 V output after sudden load current steps without excessive voltage undershoot. In practice this means DSP or FPGA power-up current surges can be handled with a modest external output bypass capacitor of 10 µF to 100 µF, reducing PCB area compared to switching regulators that may need larger LC filters.
What input voltage range does TPS75815KC support and which common power rails can directly feed it?
TPS75815KC accepts input voltages from 2.8 V to 5.5 V, with a 6 V absolute maximum rating. This allows it to be powered directly from 3.3 V system rails, 4.2 V Li-ion batteries, or 5 V USB and adapter rails, covering the most common intermediate bus voltages in embedded boards and eliminating an upstream DC-DC conversion stage.
What thermal advantages does the TO-263-5 KC package of TPS75815KC offer in high-current applications?
The TO-263-5 (D2PAK) package used for TPS75815KC includes a large exposed metal drain tab soldered directly to a PCB copper pour, providing a thermal resistance to ambient of approximately 3°C/W to 10°C/W depending on copper area. This is 5–10 times better than a standard SOIC-8 LDO package, allowing TPS75815KC to supply several hundred milliamperes continuously without a heatsink in typical industrial enclosure environments.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 3+ | $5.8400 | $17.52 |
| 10+ | $5.1600 | $51.60 |
| 50+ | $4.6400 | $232.00 |
| 500+ | $3.6500 | $1825.00 |
| 1000+ | $3.4500 | $3450.00 |
| 10000+ | $3.2500 | $32500.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit