The ST1S31 device is an internally compensated 1.5 MHz fixed-frequency PWM synchronous step-down regulator. The ST1S31 operates from 2.8 V to 5.5 V input, while it regulates an output voltage as low as 0.8 V and up to VIN.
The ST1S31 integrates a 60 mΩ high-side switch and a 45 mΩ synchronous rectifier allowing very high efficiency with very low output voltages.
The peak current mode control with internal compensation delivers a very compact solution with a minimum component count.
The ST1S31 device is available in 3 mm x 3 mm, 8 lead VFDFPN and SO8 packages.
|Part Number||Package||Packing Type||Marketing Status||Unit Price (US$) *||Quantity||ECCN (EU)||ECCN (US)||Country of Origin||More info||Order from ST||Order from Distributors|
|ST1S31D-R||SO-8||Tape And Reel||Active : Product is in volume production||0.471||1000||NEC||EAR99||CHINA||MORE INFO||DISTRIBUTOR AVAILABILITY|
|ST1S31PUR||VFDFPN 8 3x3x1.0||Tape And Reel||Active : Product is in volume production||0.535||1000||NEC||EAR99||MALAYSIA||MORE INFO||DISTRIBUTOR AVAILABILITY|
|Part Number||Marketing Status||Package||Grade||RoHS Compliance Grade||Material Declaration**|
|ST1S31PUR||Active||VFDFPN 8 3x3x1.0||Industrial||Ecopack2|
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.