TL2575HV-33IKTTR

The TL2575 and TL2575HV devices provide all the essential functions required for a step-down (buck) switching regulator in an integrated circuit. They require four to six external components to operate. They accept a wide input voltage range of up to 60V (TL2575-HV) and offer fixed output voltages of 3.3V, 5V, 12V, 15V or an adjustable output version. The TL2575 and TL2575HV devices feature an integrated switch capable of providing a load current of 1A and have excellent line and load regulation. The device also provides internal frequency compensation, a fixed-frequency oscillator, cycle-by-cycle current limiting and thermal shutdown functions. In addition, it can be manually turned off via an external ON/OFF pin.

Applications

• Buck and inverting buck-boost power supplies
• Motor drives and building automation
• Grid infrastructure and factory automation & control

Key features

• Fixed 3.3V, 5V, 12V, and 15V options with ±5% regulation (max) over line, load, and temperature conditions
• Adjustable option ranging from 1.23V to 37V (57V for HV version) with ±4% regulation (max) over line, load, and temperature conditions
• 1A rated output current
• Wide input voltage range: 4.75V to 40V (60V for HV version)
• Only four external components required (fixed version) using off-the-shelf standard inductors
• 52kHz (typical) fixed-frequency internal oscillator
• TTL shutdown capability with 50μA (typical) standby current
• Ultra-high efficiency: up to 88% (typical)
• Thermal shutdown and current limiting protection with cycle-by-cycle current limiting