TPS75601KC

The TPS756xx family of 5-A low dropout (LDO) regulators contains four fixed voltage option regulators and an adjustable voltage option regulator. These devices are capable of supplying 5 A of output current with a dropout of 250 mv (TPS75633). Therefore, the device is capable of performing a 3.3-V to 2.5-V conversion. Quiescent current is 125 μA at full load and drops down to less than 1 μA when the device is disabled. The TPS756xx 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 250 mV at an output current of 5 A for the TPS75633) 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). These two key specifications yield a significant improvement in operating life for battery-powered systems. The device is enabled when EN (enable) is connected to a high voltage level (>2V). Applying a low voltage level (<0.7V) to EN shuts down the regulator, reducing the quiescent current to less than 1 μA at TJ = 25°C. The TPS756xx 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 TPS756xx family is available in a 5-pin TO-220 (KC) and TO-263 (KTT) packages.

Key features

• 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
• Dropout Voltage Typically 250mV at 5 A (TPS75633)
• Low 125 μA Typical Quiescent Current
• Fast Transient Response
• 3% Tolerance Over Specified Conditions for Fixed-Output Versions
• Available in 5-Pin TO-220 and TO-263 Surface-Mount Packages
• Thermal Shutdown Protection