LM5123-Q1
LM5123-Q1 is Wide VIN Low-IQ Synchronous Boost Controller manufactured by Texas Instruments.
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 diode
- Constant peak current limit over...
