RT9172S

The RT9172S possesses a wide range of preset output voltage options is available, and this series of low-dropout linear regulators operate from a +2.25V to +6.0V input supply. The RT9172 uses an internal PMOS as the pass device, which does not cause extra GND current in heavy load and dropout condition. The shutdown mode of low operation current makes the IC suitable for power-saving systems. The other features include current limiting and over temperature protection. These low dropout linear regulators respond very fast to step changes in load, which are suitable for low voltage microprocessor applications.

The features of RT9172S can be summarized as (1)low dropout voltage; (2)low ground pin current; (3)load regulation of 0.4% at 3A; (4)0.5A quiescent current in shutdown mode; (5)guaranteed output current of 3A DC; (6)available in TO-263 and TO-220 Packages; (7)output voltage accuracy ±1.5%; (8)error flag indicates output status; (9)sense option improves better load regulation; (10)extremely low output capacitor requirements; (11)over-temperature/over-current protection.

The absolute maximum ratings of RT9172S are (1)input voltage: 6V; (2)power dissipation: internally limited; (3)ESD rating: 3 kV; (4)storage temperature rang: -65°C to 150°C; (5)lead temperature (soldering, 5 sec.): 260°C; (6)package thermal resistance TO-263, JC: 8°C/W, TO-263, JA: 19.4°C/W, TO-220, JC: 8°C/W, TO-220, JA: 62°C/W, SOT-223, JC: 15°C/W, SOT-223, JA: 60C/W; (7)junction temperature range: -40°C to +125°C.