Infineon Technologies AG DC-DC Converters, Switching Regulators TLF50211EL

Description
The wide input voltage range from 4.75 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 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 transient rejection. During start-up the integrated soft-start limits the in rush current peak and prevents from an output voltage overshoot. The TLF50211EL includes protection 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. Summary of Features 500 mA step down voltage regulator 5 V Output voltage ± 2% output voltage tolerance Low quiescent current (less than 45μA at nominal battery voltage) Current mode PWM regulation PFM mode for light load current Input voltage range from 4.75V to 45V Integrated power transistor 2.2 MHz switching frequency 100% Duty cycle Synchronization input Very low shutdown current consumption (<2 μA) Integrated compensation Integrated soft-start function Input undervoltage lockout Suited for automotive applications: Tj = -40 °C to +150 °C Green Product (RoHS compliant) AEC Qualified Pin-compatible family approach Benefits Low current consumption for permanently Vbat-connnected systems High switching frequency reduces value and size of coil and output capacitor Low drop-out operation due to 100% DC No external components required for compensation and soft-start One base design for multiple requirements by family approach Potential Applications Body Cluster Infotainment General purpose replacement of LDO Family Overview For an overview of other available options in this family please click here.
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DC-DC Converters, Switching Regulators - TLF50211EL - Infineon Technologies AG
Neubiberg, Germany
DC-DC Converters, Switching Regulators
TLF50211EL
DC-DC Converters, Switching Regulators TLF50211EL
The wide input voltage range from 4.75 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 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 transient rejection. During start-up the integrated soft-start limits the in rush current peak and prevents from an output voltage overshoot. The TLF50211EL includes protection 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. Summary of Features 500 mA step down voltage regulator 5 V Output voltage ± 2% output voltage tolerance Low quiescent current (less than 45μA at nominal battery voltage) Current mode PWM regulation PFM mode for light load current Input voltage range from 4.75V to 45V Integrated power transistor 2.2 MHz switching frequency 100% Duty cycle Synchronization input Very low shutdown current consumption (<2 μA) Integrated compensation Integrated soft-start function Input undervoltage lockout Suited for automotive applications: Tj = -40 °C to +150 °C Green Product (RoHS compliant) AEC Qualified Pin-compatible family approach Benefits Low current consumption for permanently Vbat-connnected systems High switching frequency reduces value and size of coil and output capacitor Low drop-out operation due to 100% DC No external components required for compensation and soft-start One base design for multiple requirements by family approach Potential Applications Body Cluster Infotainment General purpose replacement of LDO Family Overview For an overview of other available options in this family please click here.

The wide input voltage range from 4.75 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 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 transient rejection. During start-up the integrated soft-start limits the in rush current peak and prevents from an output voltage overshoot. The TLF50211EL includes protection 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.


Summary of Features

  • 500 mA step down voltage regulator
  • 5 V Output voltage
  • ± 2% output voltage tolerance
  • Low quiescent current (less than 45μA at nominal battery voltage)
  • Current mode PWM regulation
  • PFM mode for light load current
  • Input voltage range from 4.75V to 45V
  • Integrated power transistor
  • 2.2 MHz switching frequency
  • 100% Duty cycle
  • Synchronization input
  • Very low shutdown current consumption (<2 μA)
  • Integrated compensation
  • Integrated soft-start function
  • Input undervoltage lockout
  • Suited for automotive applications: Tj = -40 °C to +150 °C
  • Green Product (RoHS compliant)
  • AEC Qualified
  • Pin-compatible family approach

Benefits

  • Low current consumption for permanently Vbat-connnected systems
  • High switching frequency reduces value and size of coil and output capacitor
  • Low drop-out operation due to 100% DC
  • No external components required for compensation and soft-start
  • One base design for multiple requirements by family approach

Potential Applications

  • Body
  • Cluster
  • Infotainment
  • General purpose replacement of LDO

Family Overview

For an overview of other available options in this family please click here.

Supplier's Site Datasheet

Technical Specifications

  Infineon Technologies AG
Product Category IC Switching Voltage Regulators
Product Number TLF50211EL
Product Name DC-DC Converters, Switching Regulators
Configuration / Function Buck
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