TPS5450DDA Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
TPS5450DDA is a 5A step-down (buck) switching regulator from Texas Instruments, operating over a 5.5V to 36V input range with adjustable output voltage down to 1.22V and 500kHz switching frequency. From $1.88, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TPS5450DDA Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.8817(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 5A continuous output current with high efficiency buck topology
- Wide input voltage range: 5.5V to 36V, suitable for industrial and automotive applications
- Adjustable output voltage from 1.22V, supporting flexible power rail design
- 500kHz fixed switching frequency for compact external component sizing
- Voltage-mode PWM control for stable regulation and easy compensation
- 8-Pin HSOP-EP package with exposed pad for enhanced thermal dissipation
Applications
The TPS5450DDA is widely used in industrial power supplies, telecom equipment, and embedded systems requiring a robust step-down DC-DC conversion. Its wide input range makes it ideal for converting 12V or 24V bus voltages to lower logic or processor supply rails. It also suits automotive electronics and distributed power architectures where compact, high-current regulation is essential.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 36V |
| Input Voltage-Min | 5.5V |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Current-Max | 5A |
| Output Voltage-Max | 31V |
| Output Voltage-Min | 1.22V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK |
| Switching Frequency-Max | 500kHz |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| ## TPS5450DDA Alternates Showing results | Image |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TPS5450DDA:
Switching Regulator, Voltage-mode, 5A, 500kHz Switching Freq-Max, BICMOS, PDSO8
Switching Regulator, Voltage-mode, 5A, 500kHz Switching Freq-Max, PDSO8
suggested
suggested
suggested
suggested
suggested
Switching Regulator, Voltage-mode, 5A, 500kHz Switching Freq-Max, BICMOS, PDSO8
Frequently Asked Questions
What is the input voltage range of the TPS5450DDA?
The TPS5450DDA accepts an input voltage from 5.5V to 36V, making it suitable for a wide range of industrial, telecom, and automotive power supply designs that operate from standard 12V or 24V bus rails.
What output current and voltage can the TPS5450DDA deliver?
The TPS5450DDA provides up to 5A of continuous output current with an adjustable output voltage starting from 1.22V minimum. The output voltage is set via an external resistor divider, enabling flexible power rail configuration for microcontrollers, FPGAs, and other loads.
What switching frequency does the TPS5450DDA use, and why does it matter?
The TPS5450DDA operates at a fixed 500kHz switching frequency. This higher frequency allows the use of smaller external inductors and capacitors, reducing overall solution size and PCB footprint while maintaining efficient power conversion.
What package does the TPS5450DDA come in, and what are its thermal benefits?
The TPS5450DDA is available in an 8-pin HSOP-EP (Small Outline Package with Exposed Pad) package. The exposed thermal pad significantly improves heat dissipation to the PCB, enabling the device to reliably deliver 5A output current in compact designs.
Where can I buy the TPS5450DDA and what is the price?
The TPS5450DDA is available from FindMyChip starting from $1.88 per unit. We maintain global stock and offer worldwide shipping, making it easy to source Texas Instruments TPS5450DDA for both prototype and production quantities.
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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 |
|---|---|---|
| 1+ | $5.4000 | $5.40 |
| 2+ | $5.3400 | $10.68 |
| 3+ | $3.6000 | $10.80 |
| 8+ | $2.6208 | $20.97 |
| 21+ | $2.0160 | $42.34 |
| 64+ | $1.8817 | $120.43 |
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