 Figure 1 TPS54302DDCR device package |
 Figure 2 TPS54302DDCR schematic symbol |
What is TPS54302DDCR？
The TPS54302 is a synchronous buck converter with input voltage range of 4.5V to 28V and Maximum current capacity of 3A buck converter (step–down converter) is a DC-to-DC power converter which steps down voltage (while stepping up current) from its input (supply) to its output (load). The TPS54302 features two integrated switching FETs. It operates at high frequency of 400 kHz. It has advanced eco-mode which maximizes the light load efficiency and reduces the power loss. It has also inbuilt overcurrent protection.
Pin Configuration
| PIN NO. | LABLE | TYPE | DESCRIPTION | |
| 1 | GND | – | Ground pin Source terminal of low-side power NFET as well as the ground terminal for controller circuit. Connect sensitive VFB to this GND at a single point. | |
| 2 | SW | O | Switch node connection between high-side NFET and low-side NFET. | |
| 3 | VIN | – | Input voltage supply pin. The drain terminal of high-side power NFET. | |
| 4 | FB | I | Converter feedback input. Connect to output voltage with feedback resistor divider. | |
| 5 | EN | I | This pin is the enable pin. Float the EN pin to enable. | |
| 6 | BOOT | O | Supply input for the high-side NFET gate drive circuit. Connect a 0.1-μF capacitor between BOOT and SW pins. | |
Features
- Low cost
- Wide Input Voltage Range (4.5-V to 28-V)
- 3-A Continuous Output Current
- Fixed Switching Frequency (400-kHz)
- Peak Current Mode Control
- Frequency Spread Spectrum to Reduce EMI
- Advanced Eco-mode™ Pulse Skip
- Over Voltage Protection
- Thermal Shutdown
Applications
- Distributed Power-Bus Supply of 12-V, 24-V
- Industrial use
- Audio
- STB, DTV
- Printer
ALTERNATIVES OF TPS54302DDCR
If you are looking for DC/DC STEP DOWN Converter like TPS54302DDCR, here are some alternatives
|
INPUT:4.5V – 28V STEP DOWN DC-DC |
||
|
PART NO. |
SWITCHING FREQUENCY |
OUTPUT CURRENT |
|
TPS54200DDCR |
600kHz | 1.5A |
|
TPS54202HDDCR |
500kHz | 2A |
| TPS54308DDCR | 350kHz |
3A |
| TPS54336ADDAR | 340kHz |
3A |
WHERE TO USE TPS54302DDCR?
TPS54302DDCR can be operated with the input voltage of 4.5V to 28V and provide regulated voltage (V0 < Vin) at the output side. Regulated DC Voltages are required in many DC low power household and industrial applications. DC appliances are generally designed for 12V and 24V. As the maximum current capacity of this IC is 3A, any device operating at 12 V/ 24 V with power rating up to 36 W / 72 W can be operated with TPS54302DDCR.
How TPS54302DDCR work?
Figure 3 28 V to 5 V using TPS54302
The device is a 28-V, 3-A, synchronous step-down (buck) converter with two integrated n-channel MOSFETs. The application of TPS54302 as a step-down converter for 28 V to 5 V is shown in Fig.3. The TPS54302 is operate at constant frequency of 400 kHz. Output is regulated by controlling the value of voltage divider resistor connected to the FB pin.
2-D VIEW OF TPS54302
Figure 4 2-D VIEW OF TPS54302
Figure 5 Footprint of TPS54302
TPS54302DDCR Related Products Prices
TPS54302DDCR
Parts Mfr. Description Stock Prices Buy Now
Texas Instruments TPS54302 4.5-V to 28-V Input, 3-A Output, EMI Friendly Synchronous Step-Down Converter 45546 $0.238 Lowest 
TPS5430DDA Texas Instruments IC REG BUCK ADJ 3A 8SOPWRPAD 37 $0.843 Lowest 
TPS5430QDDARQ1 Texas Instruments IC REG BUCK ADJ 3A 8SOPWRPAD 17209 $1.054 Lowest 
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