TPS76430DBVR

The TPS764xx family of low-dropout (LDO) voltage regulators offers the benefits of a low noise, low-dropout voltage, low-power operation, and miniaturized package. Additionally, they feature low quiescent current when compared to conventional LDO regulators. Offered in 5-terminal small outline integrated-circuit SOT-23 package, the TPS764xx series devices are ideal for low-noise applications, cost-sensitive designs and applications where board space is at a premium. A combination of new circuit design and process innovation has enabled the usual pnp pass transistor to be replaced by a PMOS pass element. Because the PMOS pass element behaves as a low-value resistor, the dropout voltage is very low—typically 300 mV at 150 mA of load current (TPS76433)—and is directly proportional to the load current. Since the PMOS pass element is a voltage-driven device, the quiescent current is very low (140 μA maximum) and is stable over the entire range of output load current 0 mA to 150 mA. Intended for use in portable systems such as laptops and cellular phones, the low-dropout voltage feature and low-power operation result in a significant increase in system battery operating life. The TPS764xx also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current to 1 μA maximum at T_J = 25°C. The TPS764xx is offered in 2.5-V, 2.7-V, 2.8-V, 3.0-V, and 3.3-V fixed-voltages.

Key features

• Output Voltage: 2.5 V, 2.7 V, 2.8 V, 3.0 V, 3.3 V
• Output Noise Typically 50 μV
• Quiescent Current Typically 85 μA
• Dropout Voltage, Typically 300 mV at 150 mA
• Thermal Protection
• Over Current Limitation
• Less Than 2 μA Quiescent Current in Shutdown Mode
• -40°C to 125°C Operating Junction Temperature Range
• 5-Pin SOT-23 (DBV) Package