TPS54540QDDAQ1 Semiconductors - ICs by Texas Instruments

IC DC-DC CONVERTOR 2.5MHZ SOIC-8

Electronic & Electrical Components>Semiconductors - ICs>Power Management
Status: Unknown
Series: -
RoHS: Unknown
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The TPS54540-Q1 device is a 42-V, 5-A, step-down regulator with an integrated high-side MOSFET. The device survives load-dump pulses up to 65 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 2 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 either efficiency or external component size to be optimized. Output current is limited cycle-by-cycle. Frequency foldback and thermal shutdown protect internal and external components during an overload condition. The TPS54540-Q1 is available in an 8-pin thermallyenhanced HSOP PowerPAD package.

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Specifications

Topology Buck (Step Down)
Input Voltage Min 4.5V
Input Voltage Max 42V
No. of Outputs 1Outputs
DC / DC Converter IC Case SO PowerPAD
No. of Pins 8Pins
Output Current 5A
Output Voltage Min 800mV
Output Voltage Max 41V
Switching Frequency 2.5MHz
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 2 - 1 year
SVHC No SVHC (27-Jun-2018)
Operating Temperature Min -40°C
Output Voltage 41.1V
Primary Input Voltage 42V

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