| Customization: | Available |
|---|---|
| Conductive Type: | Unipolar Integrated Circuit |
| Integration: | ULSI |
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
TPS54540DDAR: Conv DC-DC Single Step Down 4.5V to 42V 8-Pin SOIC-PowerPad T/R
Package: SOIC-8
Mfr. Part#: TPS54540DDAR
Mfr.: TI
Datasheet: 
(e-mail or chat us for PDF file)
ROHS Status:
Quality: 100% Original
Warranty: 180 days
The TPS54540 is a 42 V, 5 A, step down regulator with an integrated high side MOSFET. The device survives load dump pulses up to 45V per ISO 7637. Current mode control provides simple external compensation and flexible component selection. A low ripple pulse skip mode reduces the no load supply current to 146 µA. Shutdown supply current is reduced to 2 µA when the enable pin is pulled low.
Undervoltage lockout is internally set at 4.3 V but can be increased using the enable pin. The output voltage start up ramp is internally controlled to provide a controlled start up and eliminate overshoot.
A wide switching frequency range allows either efficiency or external component size to be optimized. Output current is limited cycle-by-cycle. Frequency foldback and thermal shutdown protects internal and external components during an overload condition.
The TPS54540 is available in an 8-terminal thermally enhanced HSOIC PowerPAD package.
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck, Split Rail |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4.5V |
| Voltage - Input (Max) | 42V |
| Voltage - Output (Min/Fixed) | 0.8V |
| Voltage - Output (Max) | 41.1V |
| Current - Output | 5A |
| Frequency - Switching | 100kHz ~ 2.5MHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | 8-PowerSOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SO PowerPad |
Company Product Line
Certificates
Product Packing details
Notice:
){kind=link}