📢 Final call: FREE worldwide delivery ends on Mar. 31! No min purchase or code needed. 🛒 Shop now

Active

AST1S31PUR

Up to 4 V, 3 A step-down 1.5 MHz switching regulator for automotive applications

Input Voltage Min Volt2.8
Input Voltage Max Volt4.0
ECCN USEAR99
ECCN EUNEC
Packing TypeTape And Reel
RoHs compliantEcopack2
GradeAutomotive
Package NameVFDFPN 8 3x3x1.0

The AST1S31 device is an internally compensated 1.5 MHz fixed-frequency PWM synchronous step-down regulator. The AST1S31 device operates from 2.8 V to 4 V input, while it regulates an output voltage as low as 0.8 V and up to VIN.The AST1S31 integrates a 70 mΩ high-side switch and a 55 mΩ...
Read More

Key features
  • AECQ100 qualification
  • 3 A DC output current
  • 2.8 V to 4 V input voltage
  • Output voltage adjustable from 0.8 V
  • 1.5 MHz switching frequency
  • Internal soft-start and enable
  • Integrated 70 mΩ and 55 mΩ power MOSFETs
  • All ceramic capacitor
  • Power Good (POR)
  • Cycle-by-cycle current limiting
  • Current foldback short-circuit protection
  • VFDFPN 3 x 3 - 8L package
In stock
Quantity $ per unit Savings
1-9$2.770%
10-20$2.606%
Contact sales
$2.77
$2.77
Input Voltage Min Volt2.8
Input Voltage Max Volt4.0
ECCN USEAR99
ECCN EUNEC
Packing TypeTape And Reel
RoHs compliantEcopack2
GradeAutomotive
Package NameVFDFPN 8 3x3x1.0

The AST1S31 device is an internally compensated 1.5 MHz fixed-frequency PWM synchronous step-down regulator. The AST1S31 device operates from 2.8 V to 4 V input, while it regulates an output voltage as low as 0.8 V and up to VIN.The AST1S31 integrates a 70 mΩ high-side switch and a 55 mΩ...
Read More

Key features
  • AECQ100 qualification
  • 3 A DC output current
  • 2.8 V to 4 V input voltage
  • Output voltage adjustable from 0.8 V
  • 1.5 MHz switching frequency
  • Internal soft-start and enable
  • Integrated 70 mΩ and 55 mΩ power MOSFETs
  • All ceramic capacitor
  • Power Good (POR)
  • Cycle-by-cycle current limiting
  • Current foldback short-circuit protection
  • VFDFPN 3 x 3 - 8L package