TL2575-12 1A Simple Step-Down Switching Regulator
characteristic
- Fixed 3.3 volt, 5 volt, 12 V and 15 V options with ± 5% line, load regulation (max) and temperature conditions
- Adjustable options range from 1.23 V to 37 V (57 V for HV version) and ± 4%, regulation on line, load (max) and temperature conditions
- Specify 1 - A output current
-
Wide input voltage range. 。 .4.75 V to 40 V (60 HV version five)
- Only four external components (fixed version) are required, using off-the-shelf standard inductors
- 52 kHz (typical) internal oscillator at a fixed frequency
- TTL is powered off with 50μA (typical) standby current
-
High efficiency. 。 。 Up to 88% (typical)
- Thermal shutdown and cycle-by-cycle current limit protect current limit
-
apply
- Simple high efficiency buck (buck) regulator
- Pre-regulated linear regulator
- Flip-on switching regulator
- Positive to Negative Converter (Buck Boost)
PowerPAD, trademark PowerFlex, is Texas Instruments.
Description/Ordering Information
The TL2575 and TL2575HV greatly simplify the design of switching power supplies required to provide all the positive effects in the buck (buck) switching regulator integrated circuit. Accepting a wide input voltage range up to 60 volts (HV version) and fixed output voltages at 3.3 volts, 5 volts, 12 volts, 15 volts, or adjustable output versions, the TL2575 and TL2575HV are capable of boasting a complete switch delivering 1 load current with excellent line and load regulation. The device also provides internal frequency compensation, fixed frequency oscillator, cycle-by-cycle current limit, and thermal shutdown. In addition, manual shutdown can also be done externallyON/ OFF terminal.
The TL2575 and TL2575HV represent superior alternatives to popular three-terminal linear regulators. Due to its high efficiency, the size of the device's heatsink is greatly reduced, and in many cases, the absence of a heatsink is necessary. Optimized for standard series inductors available from several different manufacturers, the TL2575 and TL2575HV are greatly simplified, specifying only 4 to 6 operating external components in addition to a switch-mode power supply design.
The TL2575 features and the TL2575HV operates at the virtual junction -40°C with a temperature range of 125°C