TL2575-33IN

The TL2575-33IN is designed as 1A simple step-down switching voltage regulator. Typical applications include simple high-efficiency step-down (buck) regulators, pre-regulators for linear regulators, on-card switching regulators and positive-to-negative converters (buck-boost).

TL2575-33IN has nine features. (1)Fixed 3.3V, 5V, 12V, and 15V options with ±5% regulation (max) over line, load, and temperature conditions. (2)Adjustable option with a range of 1.23V to 37V (57V for HV version) and ±4% regulation (max) over line, load, and temperature conditions. (3)Specified 1A output current. (4)Wide input voltage range 4.75V to 40V (60V for HV version). (5)Require only four external components (fixed versions) and use readily available standard inductors. (6)52kHz (typ) fixed-frequency internal oscillator. (7)TTL shutdown capability with 50mA (typ) standby current. (8)High efficiency as high as 88% (typ). (9)Thermal shutdown and current-limit protection with cycle-by-cycle current limiting. That are all the main features.

Some absolute maximum ratings of TL2575-33IN have been concluded into several points as follow. (1)Its supply voltage would be max 42V. (2)Its ON/OFF input voltage range would be min -0.3V and max Vin. (3)Its output voltage to GND (steady state) would be max -1V. (4)Its maximum junction temperature would be max 150°C. (5)Its storage temperature range would be from -65°C to 150°C. It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some electrical characteristics of TL2575-33IN are concluded as follow. (1)Its output voltage would be min 3.234V and typ 3.3V and max 3.366V. (2)Its feedback voltage would be min 1.217V and typ 1.23V and max 1.243V. (3)Its feedback bias current would be typ 50nA and max 100nA. (4)Its oscillator frequency would be min 47kHz and typ 52kHz and max 58kHz. (5)Its saturation voltage would be typ 0.9V and max 1.2V. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!