LM5145RGYT

One of the key highlights of the LM5145RGYT is its ability to regulate from high input voltage sources or rails that may experience significant voltage transients without the need for external surge suppression components. This makes it a cost-effective solution for applications requiring robust operation in challenging environments

Key Features

• Versatile synchronous buck DC/DC controller
  • Wide input voltage range of 6 V to 75 V
  • 0.8-V reference with ±1% feedback accuracy
  • Adjustable output voltage from 0.8 V to 60 V
  • 40-ns t_ON(min) for high V_IN / V_OUT ratio
  • 140-ns t_OFF(min) for low dropout
  • Optimized for CISPR 32 requirements
• Switching frequency from 100 kHz to 1 MHz
  • SYNC In and SYNC Out capability
  • Selectable diode emulation or FPWM
• 7.5-V gate drivers for standard V_TH MOSFETs
  • 14-ns adaptive dead-time control
  • 2.3-A source and 3.5-A sink capability
  • Low-side soft start for prebiased start-up
• Fast line and load transient response
  • Voltage-mode control with line feedforward
  • High gain-bandwidth error amplifier
• Inherent protection features for robust design
  • Adjustable output voltage soft start
  • Hiccup-mode overcurrent protection
  • Input UVLO with hysteresis
  • VCC and gate-drive UVLO protection
  • Precision enable input and open-drain PGOOD indicator for sequencing and control
  • Thermal shutdown protection with hysteresis
• 20-pin VQFN package with wettable flanks
• Create a custom design using the LM5145 with WEBENCH Power Designer