LM5123-Q1

www.ti.com LM5123-Q1 SLVSFF1 – DELCMEM5B1E2R32-Q0210 SLVSFF1 – DECEMBER 2020 LM5123-Q1 2.2-MHz Wide VIN Low-IQ Synchronous Boost Controller with VOUT Tracking ADVANCE INFORMATION 1 Features AEC-Q100 qualified for automotive applications – Temperature grade 1: –40°C to +125°C, TA Suited for wide operating range automotive battery powered applications – 3.8-V to 42-V input operating range – Dynamically programmable VOUT from 5 V to 20 V, or from 15 V to 57 V – Minimum boost input 0.8 V when BIAS ≥ 3.8 V – Bypass operation when VSUPPLY > VLOAD Minimized battery drain – Shutdown current ≤ 3 μA – Automatic mode transition – Battery drain in deep sleep ≤ 11 μA (bypass operation, charge pump off) – Optional programmable spread spectrum – Lead-less package Programmability and flexibility – Dynamic VOUT tracking – Dynamic switching frequency programming – Programable line UVLO – Adjustable soft start – Adaptive dead-time – PGOOD indicator Integrated protection features – Cycle-by-cycle peak current limit – Overvoltage protection – HB-SW short protection – Thermal shutdown 2 Applications – Battery drain in deep sleep ≤ 33 μA (bypass operation, charge pump on) – BIAS IQ in sleep ≤ 11 μA (skip mode) – Strong 5-V MOSFET drivers Small solution size and low cost – Maximum switching frequency 2.2 MHz Automotive audio power supply with tracking Automotive LED bias supply Automotive HVAC controller supply Automotive motor power supply 3 Description – Internal boot ...