TPS43350-Q1 - Texas Instruments

TPS43350-Q1 Dual Synchronous Buck Controller

The TPS43350-Q1 and TPS43351-Q1 include two current-mode synchronous buck controllers designed for the harsh environment in automotive applications. The devices are ideal for use in a multi-rail system with low quiescent requirements, as they automatically operate in low-power mode (consuming typically 30 µA) at light loads. The devices offer protection feat.

Features

2 Applications
•1 Qualified for Automotive Applications
• AEC-Q100 Test Guidance With the Following Results:
  – Device Temperature Grade 1:
  –40°C to 125°C Ambient Operating Temperature
  – Device HBM ESD Classification Level H2
  – Device HBM CDM Classification Level C2
• Two Synchronous Buck Controllers
• Input Range up to 40 V (Transients up to 60 V)
• Low-Power Mode IQ: 30 µA (One Buck On), 35 µA (Two Bucks On)
• Low Shutdown Current Ish < 4 µA
• Buck Output Range 0.9 V to 11 V
• Programmable Frequency and External Synchronization Range 150 kHz to 600 kHz
• Separate Enable Inputs (ENA, ENB)
• .