LM2576T-3.3 Switching Regulator

Fixed Output Voltage Versions
• LM2576-3.3: Fixed 3.3V output
• LM2576-5.0: Fixed 5V output
• LM2576-12: Fixed 12V output
• LM2576-15: Fixed 15V output

Adjustable Output Version
• LM2576-ADJ: Allows the user to set a custom output voltage ranging from 1.23V to 37V (or up to 57V for the HV version) using external resistors.
• Adjustable version output voltage range,1.23 V to 37 V (57 V for HV version) ±4% maximum over line and load conditions

High Voltage (HV) Versions : For input supplies higher than 40V, the LM2576HV variants provide a wider maximum operating input voltage of up to 60V.
• Fixed models: LM2576HV-3.3, LM2576HV-5.0, LM2576HV-12, LM2576HV-15
• Adjustable model: LM2576HV-ADJ
• Wide input voltage range: 40 V Up to 60 V for HV version

Package and Suffix Variants
These parts are also identified by their packaging suffixes and operating temperature ranges:
• T: TO-220 package (T package)
• S: TO-263 surface mount package
• -ADJ: Adjustable output

• Specified 3-A output current
• Requires only four external components
• 52-kHz fixed-frequency internal oscillator
• TTL-shutdown capability, low-power standby mode
• High efficiency
• Uses readily available standard inductors

Click here to download tutorial on Voltage Regulators