TLF51801ELV

TLF51801ELV 10 A synchronous DC/DC Step-Down Controller Data sheet Rev. 1.0.1, 2013-04-15 Automotive Power 10 A synchronous DC/DC Step-Down Controller TLF51801ELV 1 Overview 10 A synchronous step down Controller Current limitation adjustable with Shunt resistor or Rdson Adjustable output voltage ± 2% output voltage tolerance External power transistors Integrated bootstrap diode PWM regulation Very Low Dropout Operation: max Duty Cycle higher than 99% Input voltage range from 4.75V to 45V Adjustable switching frequency from 100 to 700 kHz Synchronization input Very low shutdown current consumption (<2µA) Soft-start function Input undervoltage lockout Suited for automotive applications: Tj = -40°C to +150°C Green Product (RoHS compliant) AEC Qualified PG-SSOP-14 Description The TLF51801ELV is a PWM step-down DC/DC controller with external power switches, packaged in a small PGSSOP-14 with exposed pad. The controller is capable to drive external power MOSFETs for load currents up to 10 A. A current limitation feature is included, it is done by measuring the voltage over the high-side switch (when switch is closed) in Rdson-configuration or by including a shunt resistor above the high-side switch in Shuntconfiguration. Type TLF51801ELV Data sheet Package PG-SSOP-14 2 Marking TLF51801 Rev. 1.0.1, 2013-04-15 2 Block Diagram TLF51801ELV Block Diagram IVCC VS EN GND SYNC/ FREQ COMP LDO Enable Softstart Temp .SD V_ls Osc Sync Step Down ...