The TPS769xx 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-terminal small outline integrated-circuit SOT-23 package, the TPS769xx series 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), and is directly proportional to the load current. Since the PMOS pass element is a voltage-driven device, the quiescent current is ultralow (28 uA maximum) and is stable over the entire range of output load current (0 mA to 100 mA). Intended for use in portable systems such as laptops and cellular phones, the ultralow-dropout voltage feature and ultralow-power operation result in a significant increase in system battery operating life.
The TPS769xx also features a logic-enabled sleep mode to shut down the regulator, reducing quiescent current to 1 uA typical at TJ = 25°C. The TPS769xx is offered in 1.2-V, 1.5-V, 1.8-V, 2.5-V, 2.7-V, 2.8-V, 3.0-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).
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | Ultra Low-Power 100-mA Low-Dropout Line Regulators datasheet (Rev. E) | 10 Jan 2002 | |
| * | Radiation & reliability report | TPS76901SDBVR Reliability Report | 05 Jan 2012 | |
| Application note | LDO Noise Demystified (Rev. B) | PDF | HTML | 18 Aug 2020 | |
| Application note | LDO PSRR Measurement Simplified (Rev. A) | PDF | HTML | 09 Aug 2017 | |
| Application note | Ceramic Capacitors Replace Tantalum Capacitors in LDOs (Rev. A) | 13 Oct 2006 | ||
| User guide | DEM-SOT23LDO Demonstration Fixture User's Guide (Rev. A) | 02 Jun 2005 | ||
| User guide | TPS769xx SOT-23 LDO Linear Regulator | 11 Feb 2000 | ||
| Application note | Powering the TMS320VC5402 DSP Using the TPS60100, TPS76918, and the TPS3305-18 | 16 Dec 1999 |
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The TPS76901EVM-127 evaluation module (EVM) provides designers with an easy layout for using and evaluating the TPS76901 SOT-23 LDO in an application to regulate from 5 V to a selectable output. The EVM includes input and output capacitors.
The TPS76933EVM-127 evaluation module (EVM) provides designers with an easy layout for using and evaluating the TPS76933 SOT-23 LDO in an application to regulate from 5 V to a 3.3-V output. The EVM includes input and output capacitors.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SOT-23 (DBV) | 5 | Ultra Librarian |
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