TYPE | DESCRIPTION |
---|
Mounting Style | Surface Mount |
Number of Pins | 8 Pin |
Case/Package | HSOP-8 |
Number of Outputs | 1 Output |
Output Voltage | 0.8V ~ 41V |
Output Current | 3.5 A |
Quiescent Current | 146 µA |
Number of Regulated Outputs | 1 Output |
Switching Frequency | 100kHz ~ 2.5MHz |
Input Voltage (Max) | 42 V |
Input Voltage (Min) | 4.5 V |
Output Voltage (Max) | 41 V |
Output Voltage (Min) | 0.8 V |
Output Current (Max) | 3.5 A |
Operating Temperature (Max) | 125 ℃ |
Operating Temperature (Min) | -40 ℃ |
Input Voltage | 42 V |
TYPE | DESCRIPTION |
---|
Product Lifecycle Status | Active |
Packaging | Tape & Reel (TR) |
Size-Height | 1.55 mm |
Operating Temperature | -40℃ ~ 150℃ (TJ) |
The TPS54340-Q1 device is a 42-V, 3.5-A, step-down regulator with an integrated high-side MOSFET. The device survives load-dump pulses up to 45 V 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 1 µA when the enable pin is pulled low.
●Undervoltage lockout is internally set at 4.3 V but can be increased using an external resistor divider at the enable pin. The output voltage start-up ramp is internally controlled to provide a controlled start-up and eliminate overshoot.
●A wide adjustable frequency range allows for optimization of either efficiency or external component size. Frequency foldback and thermal shutdown protects internal and external components during an overload condition.
●The TPS54340-Q1 device is available in an 8-pin thermally-enhanced HSOIC PowerPAD package.
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