SI-8008TFE, SI-8008TM, SI-8050TFE: DC-to-DC Step-Down Converter

The SI-8008TFE, SI-8008TM, and SI-8050TFE DC voltage regulators are DC-to-DC buck converters that attain an oscillation frequency of 300 kHz, and have an integrated miniaturized choke coil, allowing them to serve as a small, high efficiency power supplies in compact TO252-5 (SC-63) or TO220F packages.

The switching regulator function realizes a high efficiency switching regulator operation without adjustment, requiring only six external support components, and an optional capacitor for soft start operation and an optional transistor for on/off control. The SI-8008TFE, SI-8008TM, and SI-8050TFE include overcurrent and overheating protection circuits.

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  • 1.5 A output current supplied in a small power surface mount package
  • High efficiency: 81% at VIN = 15 V, IO = 0.5 A,VO = 5 V
  • Requires only six external components (optional soft start requires an additional capacitor)
  • Oscillation circuit built-in (frequency 300 kHz typical)
  • Constant current type overcurrent protection circuit and an overheating protection circuit built in
  • Soft start function built-in (can be implemented as an ON/OFF function, output OFF state at low level)
  • Low consumption current during output OFF state

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Product Image Packages

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Part Composition /
RoHS Data
Comments Samples Check
Distributor Stock
SI-8008TFE 5-lead TO-220 -40°C to 150°C Yes View Data New Contact your
local sales rep
Check Stock
SI-8008TM-TL 5-lead TO-252 -40°C to 150°C Yes View Data New Contact your
local sales rep
Check Stock
SI-8050TFE 5-lead TO-220 -40°C to 150°C Yes View Data New Contact your
local sales rep
Check Stock

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