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7.5 A Low Dropout Voltege Regulator Adjustable output 1.22-5V, Fast transient response * 7.5-A Low-Dropout Voltage Regulator * Adjustable Output Voltage: 1.22 to 5.0 Volts * Open Drain Power-Good (PG)\ Status Output (Fixed Options Only) * Dropout Voltage Typically 400 mV at 7.5 A (TPS75933) * Low 125 µA Typical Quiescent Current * 3% Tolerance Over Specified Conditions for Fixed-Output Versions * Available in 5-Pin TO-220 and TO-263 Surface-Mount Packages * Thermal Shutdown Protection The TPS759xx family of 7.5-A low dropout (LDO) regulators contains four fixed voltage option regulators with integrated power-good (PG)\ and an adjustable voltage option regulator. These devices are capable of supplying 7.5 A of output current with a dropout of 400 mV (TPS75933). Therefore, the devices are capable of performing a 3.3-V to 2.5-V conversion. Quiescent current is 125 uA at full load and drops below 10 µA when the devices are disabled. The TPS759xx is designed to have fast transient response for large load current changes. Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 400 mV at an output current of 7.5 A for the TPS75933) and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (typically 125 µA over the full range of output current, 1 mA to 7.5 A). These two key specifications yield a significant improvement in operating life for battery-powered systems. The device is enabled when EN\ is connected to a low-level voltage. This LDO family also features a sleep mode; applying a TTL high signal to EN\ (enable) shuts down the regulator, reducing the quiescent current to less than 1 µA at TJ = 25°C. The power-good terminal (PG)\ is an active low, open drain output, which can be used to implement a power-on reset or a low-battery indicator. stock photo may show different part number (all content is the responsibility of the poster) |
V.dickerson@oklahomaselltoday.com (Virgil Dickerson) for more information. All emails will be forwarded to the poster's actual email address.