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TLF50251EL Datasheet 2.2 Mhz Step-down Regulator

Manufacturer: Infineon

Overview: TLF50251EL 2.2 MHz Step-Down Regulator 500 mA, 5 V, low quiescent current Data Sheet Rev. 1.0, 2013-06-19 Automotive Power 2.2 MHz Step-Down Regulator 500 mA, 5 V Low quiescent current TLF50251EL TLF50251EL 1 Overview • 500 mA step down voltage regulator • 5 V Output voltage • ± 2% output voltage tolerance • Low quiescent current (less than 45µA at nominal battery voltage) • Integrated power transistor • Current mode PWM regulation • PFM mode for light load current • Input voltage range from 4.75V to 45V • 2.

General Description

The TLF50251EL is a high frequency PWM step-down DC/DC converter with an integrated PMOS power switch, packaged in a small PG-SSOP-14 with exposed pad.

The wide input voltage range from 4.75 to 45 V makes the TLF50251EL suitable for a wide variety of applications.

The device is designed to be used under harsh automotive environmental conditions.

Key Features

  • such as a cycle-by-cycle current limitation, over-temperature shutdown and input under voltage lockout. The enable function, in shutdown mode with less than 2 µA current consumption, enables easy power management in battery-powered systems. The voltage regulation loop provides an excellent line and load regulation, the stability of the loop is ensured by an internal compensation network. This compensation network combined with a current mode regulation control guarantees a highly effective line.

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