ST1S50PUR Active
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4A Monolithic synchronous step-down converter with high efficiency at light load
Input Voltage Min Volt4.0
Input Voltage Max Volt18.0
ECCN USEAR99
ECCN EUNEC
Packing TypeTape And Reel
ROHS Compliance GradeEcopack2
GradeIndustrial
Package NameDFN10 3X3
Key Features
  • 4 A output current
  • 4.0 V to 18 V input voltage
  • Output voltage adjustable from 0.8 V to 0.88 x VIN
  • 500 kHz switching frequency
  • High efficiency at light load
  • Programmable soft-start and enable
  • Integrated 95 mΩ and 69 mΩ power MOSFETs
  • All ceramic capacitor
  • Power Good
  • Cycle-by-cycle current limiting
  • Short-circuit protection
  • VFDFPN10 3 x 3 x 1 mm - 10 L

The ST1S50 device is a 500 kHz fixed frequency PWM synchronous step-down regulator. The ST1S50 operates from 4.0 V to 18 V input, while it regulates an output voltage as low as 0.8 V and up to 0.88 x VIN.


The ST1S50 device integrates a 95 mΩ high-side switch and a 69 mΩ synchronous rectifier allowing very high efficiency with very low output voltages.


The peak current mode control with a special PFM mode enables high efficiency at a light load.


The ST1S50 device is available in a VFDFPN10 3 x 3 x 1 mm - 10 leads package.

In stock:
$1.79
or
Range Unit Price Savings
1 - 9$1.790%
10 - 99$1.5215%
100 - 499$1.0740%
500$1.0442%
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