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TPS54240DGQ
+NomenclatureIC REG BCK SPLIT RAIL ADJ 10MSOP
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FabricantTexas Instruments
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Pièce fabricant #TPS54240DGQ
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Package HVSSOP-10
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En stock4793
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Spécifications
| Attribut | Valeur |
| Package | Bulk,Tube |
| Series | SWIFT™, Eco-Mode™ |
| ProductStatus | Active |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck, Split Rail |
| OutputType | Adjustable |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 3.5V |
| Voltage-Input(Max) | 42V |
| Voltage-Output(Min/Fixed) | 0.8V |
| Voltage-Output(Max) | 39V |
| Current-Output | 2.5A |
| Frequency-Switching | 100kHz ~ 2.5MHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 150°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 10-PowerTFSOP, 10-MSOP (0.118, 3.00mm Width) |
Présentation
Description
This device is capable of delivering up to 2.5A of continuous output current, with high efficiency due to its advanced switching architecture. The TPS54240DGQ includes features such as adjustable output voltage, low dropout operation, and a wide switching frequency range, typically from 100kHz to 2.5MHz. This flexibility allows designers to optimize their power supply design for efficiency, size, and thermal performance.
Additional features include a high-side MOSFET with integrated current sensing, internal compensation, and protection mechanisms like thermal shutdown and overcurrent protection. The TPS54240DGQ is available in an 8-pin HVSSOP (PowerPAD) package, which aids in thermal dissipation. It's an ideal choice for applications in telecommunications, industrial, and consumer electronics where reliable, compact, and efficient power solutions are essential.
Equivalent
1. LM2596: A popular adjustable voltage regulator.
2. LM2678: Offers similar functionality with higher current output.
3. MP1584: A compact, high-frequency buck converter.
4. LT8609: A low noise, high-efficiency synchronous step-down regulator.
5. R-78E5.0-0.5: A high-efficiency replacement for 78xx linear regulators.
These alternatives vary in specifications, so check datasheets for exact matches to your requirements.
Features
1. Wide Input Voltage Range: Operates from 3.5 V to 42 V, making it suitable for various applications.
2. Output Current: Provides a continuous output current of up to 2.5 A.
3. Switching Frequency: Features an adjustable switching frequency up to 2.5 MHz, enabling design flexibility.
4. High Efficiency: Designed for high efficiency with low resistance high-side and low-side MOSFETs.
5. Adjustable Output Voltage: Supports output voltage adjustments using external resistors.
6. Soft Start and Tracking: Includes a soft-start function to limit inrush current during start-up.
7. Overcurrent Protection: Integrates cycle-by-cycle current limit and hiccup mode protection.
8. Thermal Shutdown: Provides thermal protection to avoid overheating.
9. Spread Spectrum: Available with spread spectrum options to reduce EMI.
10. Compact Package: Comes in a small 10-pin MSOP-PowerPAD™ package for space-constrained applications.
These features make the TPS54240DGQ suitable for use in industrial, automotive, and consumer applications requiring reliable step-down voltage regulation.
Pinout
1. BOOT: Boost capacitor connection for the high-side FET driver.
2. VIN: Input voltage supply pin.
3. EN: Enable pin to turn the device on or off.
4. SS/TR: Soft-start and tracking pin for controlling voltage rise time.
5. COMP: Compensation pin for stability and transient response adjustment.
6. GND: Ground pin.
7. VSENSE: Feedback pin for sensing output voltage.
8. RT/CLK: Pin for setting the switching frequency or synchronization.
9. BP: Bypass pin for the internal regulator.
10. SW: Switch node output connected to the inductor.
The TPS54240DGQ is designed for efficient power conversion, supporting input voltages up to 42V, and output currents up to 2.5A, making it suitable for various applications.