ISSI IS31PM3420A | Demoboard IS31PM3420A DEMO BOARD

Beschreibung

The IS31PM3420A regulator is a fully integrated and high frequency synchronous step-down DC-DC converter that can drive a load current of up to 3A. It can operate within an input voltage range of 3.8V to 36V. The IS31PM3420A provides exceptional efficiency, output accuracy and drop-out voltage in a very small solution size. Constant on-time control mode is employed to achieve simple control-loop compensation and fast transient response. Force Continuous Conduction Mode (FCCM) at light loads significantly reduces the output voltage ripple. It requires few external components. Pin arrangement allows simple, optimum PCB layout. Protection features include thermal shutdown, VDD under voltage lockout, cycle-by-cycle current limit, over voltage and output short-circuit protection. The IS31PM3420A device is available in the SOP-8- EP package with an exposed pad for enhanced thermal dissipation.

Eigenschaften

• Input voltage range from 3.8V to 36V
• 1µA (Typ.) shutdown current
• Up to 3A output current capability
• Adjustable output voltage, 1V to 24V
• Output regulation accuracy: ±1%
• 91% efficiency at full load (5V/3A)
• Integrated synchronous rectifier
• Fixed operating frequency: 400kHz
• Force Continuous Conduction Mode (FCCM)
• Spread spectrum to minimize EMI
• Few external components
• Internal loop compensation
• Internal soft-start
• Power good flag output
• Fault protections
• Cycle by cycle current limit
• Precision enable to program system UVLO
• Output short-circuit protection with hiccup mode
• Output over-voltage protection
• VDD under-voltage lockout
• Thermal shutdown protection
• SOP-8-EP compact package
• RoHS & Halogen-Free Compliance
• TSCA Compliance

Typische Anwendungen

• General-purpose power supply

Weiterführende Informationen

• Datenblatt
• Produktseite des IC-Herstellers