TPS54540DDA
IC REG BCK SPLIT RAIL ADJ 8SOPWR
Pmic Voltage Regulators Dc Dc Switching Regulators
8-PowerSOIC (0.154", 3.90mm Width)
Eco-Mode™
Not For New Designs
$6.48 / unit (market reference)
MOQ: 1 pcs
Submit your quantity via the inquiry form for a competitive quote within 24 hours.
Parameters
| Parameter | Value |
|---|---|
| Brand | Texas Instruments |
| Model | TPS54540DDA |
| Package / Case | 8-PowerSOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Topology | Buck, Split Rail |
| Voltage - Input (Min) | 4.5V |
| Voltage - Input (Max) | 42V |
| Voltage - Output | 0.8V |
| Current - Output | 5A |
| Frequency - Switching | 100kHz ~ 2.5MHz |
| Number of Outputs | 1 |
| Supplier Device Package | 8-SO PowerPad |
| RoHS | RoHS |
| Part Status | Not For New Designs |
Application & Notes
TPS54540DDA by Texas Instruments is a Buck, Split Rail IC commonly used in power supply designs, battery-powered devices, and DC-DC conversion modules. Input voltage up to 42V, output 0.8V. The 8-PowerSOIC (0.154", 3.90mm Width) package with surface mount mounting is standard for compact designs. Pay attention to input/output capacitor selection and PCB layout — switching regulators are sensitive to trace inductance.
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All Technical Specifications
| Function | Step-Down |
| Topology | Buck, Split Rail |
| Output Type | Adjustable |
| Current - Output | 5A |
| Number of Outputs | 1 |
| Output Configuration | Positive |
| Frequency - Switching | 100kHz ~ 2.5MHz |
| Synchronous Rectifier | No |
| Voltage - Input (Max) | 42V |
| Voltage - Input (Min) | 4.5V |
| Voltage - Output (Max) | 41.1V |
| Voltage - Output (Min/Fixed) | 0.8V |
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