LM2577S-ADJ | Texas Instruments

Voltage regulators, 3.3 V, 11.6 V, 12.4 V

Order No.: 41S5415
EAN: 4099879090195
Texas Instruments
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Unit Price (€ / pc.)
8.2824 € *
Available: 0 pcs.
Leadtime: 12 Weeks **
Total Price:
8.28 € *
*incl. VAT plus shipping costs
**Subject to prior sale
270 pcs.
8.2824 €

Voltage Regulator, LM2577S-ADJ, Texas Instruments

The LM2577S-ADJ is a monolithic integrated circuit that provides all of the power and control functions for step-up (boost), flyback, and forward converter switching regulators. Requires a minimum number of external components and is simple to use. Other features include a 52 kHz fixed-frequency oscillator that requires no external components, a soft start mode to reduce in-rush current during start-up, and current mode control for improved rejection of input voltage and output load transients.


  • Output Switch Protected by Current Limit
  • Under-voltage Lockout
  • Thermal Shutdown


  • Simple Boost Regulator
  • Flyback and Forward Regulators
  • Multiple-output Regulator
Technical specifications
Output voltage DC 11.6-12.4 V
Output current 3 A
Input voltage 40 V
Input voltage AC 3.5-40 V
Enclosure TO-263
max. operating temperature 125 °C
min. operating temperature -40 °C
Assembly SMD
Country of origin MY
Customs tariff number 85423390
Original Packaging Bar with 45 pieces
RoHS conform Yes
Date of RoHS guidelines 3/31/15
SVHC free No
Substance description Lead