TLF50211ELV50 Datasheet | Infineon

Overview Features - 500 m A step down voltage regulator - 5 V Output voltage - ±2% output voltage tolerance - Low quiescent current (less than 45 µA at nominal battery voltage) - Integrated power transistor - Current mode PWM regulation - PFM mode for light load current - Input voltage range from 4.75 V to 45 V - 2.2 MHz switching frequency - 100% Duty cycle - Synchronization input - Very low shutdown current consumption (< 2 µA) - Soft-start function - Input undervoltage lockout - Suited for automotive applications: Tj = -40°C to 150°C - Green Product (Ro HS pliant) Potential applications - Applications with a 5.0 V switching regulator as replacement for linear voltage regulator with low quiescent current, such as: - dashboard - engine management - braking - body - infotainment Product validation Qualified for automotive applications. Product Validation according to AEC-Q100/101. Data Sheet .infineon. Rev. 1.1 2018-03-07 2.2 MHz Step-Down Regulator 500 m A, 5 V, low quiescent current Overview Description The TLF50211EL 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 V to 45 V makes the TLF50211EL suitable for a wide variety of applications. The device is designed to be used under harsh automotive environmental conditions. The switching frequency of nominal 2.2 MHz allows the use of small and cost-effective inductors and capacitors, resulting in a low, predictable output voltage ripple and in minimized consumption of board space. In light load condition the device operates in Pulse Frequency Modulation (PFM) to optimize the efficiency. Between the single pulses, all internal controlling circuitry is switched off to reduce the internal power consumption. The TLF50211EL includes protection features such as a cycle-by-cycle current limitation, overtemperature shutdown and input undervoltage lockout. The enable function, in...