The TPS769xx-Q1 family of low-dropout (LDO) voltage regulators offers the benefits of low-dropout voltage, ultralow-power operation, and miniaturized packaging. These regulators feature low-dropout voltages and ultralow quiescent current compared to conventional LDO regulators. Offered in a 5-pin small outline integrated-circuit SOT-23 package, the TPS769xx-Q1 series of devices are ideal for micropower operations and 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 71 mV at 100 mA of load current (TPS76950-Q1), and is directly proportional to the load current. Because the PMOS pass element is a voltage-driven device, the quiescent current is ultralow (28 µA maximum) and is stable over the entire range of output load current (0 mA to 100 mA). The ultralow-dropout voltage feature and ultralow-power operation result in a significant increase in system battery operating life, making this device suitable for use in automotive applications.
The TPS769xx-Q1 devices also feature a logic-enabled sleep mode to shut down the regulator, reducing quiescent current to 1 µA (typical) at TJ = 25°C. The TPS769xx-Q1 devices are offered in 1.2-V, 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V, 3-V, 3.3-V, and 5-V fixed-voltage versions and in a variable version (programmable over the range of 1.2 V to 5.5 V).
|Part number||Order||Output options||Iout (Max) (A)||Vin (Max) (V)||Vin (Min) (V)||Vout (Max) (V)||Vout (Min) (V)||Fixed output options (V)||Package Group||Features||Regulated outputs (#)||Operating temperature range (C)||Thermal resistance θJA (°C/W)||Noise (uVrms)||Approx. price (US$)||Rating||Output capacitor type||PSRR @ 100 KHz (dB)||Accuracy (%)||Vdo (Typ) (mV)||Iq (Typ) (mA)||Package size: mm2:W x L (PKG)|
|SOT-23 | 5||Enable||1||-40 to 125||205||190||0.35 | 1ku||Automotive||Non-Ceramic||28||3||71||0.017||5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)|
||Adjustable Output||0.1||10||2.7||5.5||0.7||SOT-23 | 5||Enable||1||-40 to 125||184||60||0.50 | 1ku||Automotive||Non-Ceramic||40||3||100||0.02||5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)|
|SOT-23 | 5||Enable||1||-40 to 125||205||140||0.33 | 1ku||Automotive||Non-Ceramic||42||3||300||0.085||5SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 5)|