TPS75918KTTT

The TPS759xx family of 7.5-A low dropout (LDO) regulators contains four fixed voltage option regulators with integrated power-good (PG（overline）) 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 μA 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（overline） is connected to a low-level voltage. This LDO family also features a sleep mode; applying a TTL high signal to EN（overline） (enable) shuts down the regulator, reducing the quiescent current to less than 1 μA at TJ = 25 ℃. The power-good terminal (PG（overline）) is an active low, open drain output, which can be used to implement a power-on reset or a low-battery indicator. The TPS759xx is offered in 1.5-V, 1.8-V, 2.5-V, and 3.3-V fixed-voltage versions and in an adjustable version (programmable over the range of 1.22 V to 5 V). Output voltage tolerance is specified as a maximum of 3% over line, load, and temperature ranges. The TPS759xx family is available in a 5-pin TO-220 (KC) and TO-263 (KTT) packages. The TPS759xx family includes four fixed-output voltage regulators (1.5 V, 1.8 V, 2.5 V, and 3.3 V), and an adjustable regulator, the TPS75901 (adjustable from 1.22 V to 5 V). The bandgap voltage is typically 1.22 V.

Applications

• Battery-powered systems
• Electronic devices requiring voltage conversion
• Electronic devices requiring power-on reset or low battery indication

Key features

• 7.5-A Low-Dropout Voltage Regulator
• Available in 1.5-V, 1.8-V, 2.5-V, and 3.3-V
• Fixed-Output and Adjustable Versions
• Open Drain Power-Good (PG (overline)) Status Output (Fixed Options Only)
• Dropout Voltage Typically 400 mV at 7.5 A (TPS75933)
• Low 125 μA Typical Quiescent Current
• Fast Transient Response
• s% Tolerance Over Specified Conditions for Fixed-Output Versions
• Available in 5-Pin TO-220 and TO-263 Surface-Mount Packages
• Thermal Shutdown Protection