TPS763 Datasheet | Texas Instruments

Features - 1 150-m A, low-dropout regulator - Output voltage: 5 V, 3.8 V, 3.3 V, 3 V, 2.8 V, 2.7 V, 2.5 V, 1.8 V, 1.6 V, and variable - Dropout voltage, typically 300 m V at 150 m A - Thermal protection - Overcurrent 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 2 Applications - Electricity meters - Solar inverters - HVAC systems - Servo drives and motion control - Sensor transmitters TPS76350 Load Transient Response - Output Current - m A CO = 4.7 µF ESR = 0.25 Ω TJ = 25°C ∆ VO - Change in Output Voltage - m V - 100 - 200 0 20 40 60 80 100 120 140 160 180 200 t - Time - µs 3 Description The TPS763xx family of low-dropout (LDO) voltage regulators offers the benefits of low-dropout voltage, low-power operation, and miniaturized packaging. These regulators feature low dropout voltages and quiescent currents pared to conventional LDO regulators. Offered in a 5-pin, small outline integrated-circuit SOT-23 package, the TPS763xx series devices are ideal for cost-sensitive designs and for applications where board space is at a premium. A bination 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 low- typically 300 m V at 150 m A of load current (TPS76333)- and is directly proportional to the load current. Because the PMOS pass element is a voltage-driven device, the quiescent current is low (140 µA maximum) and is stable over the entire range of output load current (0 m A to 150 m A). 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 TPS763xx also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current to 1 µA...