TPS70145PWP

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TheTPS70145PWP is one of many voltage regulatorsmanufactured byTexas Instruments. This linear regulator provides up to 1.45V ofoutput voltage and is configurable to support either a ±12V or ±15Vinput supply. Additionally, the device is protected against overloadconditions through a current limit circuit and is protected againstovervoltage conditions with a voltage clamp circuit. It is a member ofTI’s PMIC (Power Management ICs) family and falls under the ‘VoltageRegulators - Linear’ category.

TheTPS70145PWP is a versatile, high performance voltage regulator.It boasts an ultra-low output voltage noise of 15 mV RMS and can beused for a variety of applications. These include low-noise monitorcircuits, audio components, medical devices and precision power supplyrequirements. It is also suitable for battery-powered systems and highpower supplies, given its low quiescent current (140uA typ, in powerdown mode).

TheTPS70145PWP works on the simple principle of linear regulation;it converts a higher input voltage to a lower, stable output voltage.This is done by passing the input voltage through a series of resistorsand other components, then utilizing a series of feedback loops tomonitor and adjust the input and output voltages. Generally, more linearregulators are used in applications that require stable, low voltageoutputs rather than applications that require higher voltage, highercurrent outputs.

TheTPS70145PWP has two independent gate drivers and can power upto three external N-channel MOSFETs. The gate drivers allow forcontrollable logic level output voltage during both standby andprogrammable modes. Additionally, the device provides for adjustableoutput slew rate for noise optimization and fault protection, programmablepeaking current to reduce voltage droop, current limit circuitry formaximum protection, and a low drop out voltage that ensures the accuracyof the output voltage.

Interms of operation, the TPS70145PWP’s gate drivers enable a logiclevel output voltage during standby and programmable modes. The gatevoltage is controlled by the voltage regulator’s internal voltageregulator, which can be set to three different voltage levels from 2.2Vto 3.3V. The device also has adjustable output slew rate, programmablepeaking current, fault protection, and current limit circuitry optionsallowing for designs that effectively minimize output voltage drop andstabilize output voltage.

Insummary, the TPS70145PWP is a configurable voltage regulator offeringan output voltage of up to 1.45 V. It supports either ±12V o±15V inputsupply and is capable of powering up to three externalMOSFETs. The device features adjustable output slew rate,programmable peaking current, current limit circuitry, low-noisemonitor circuits, and voltage clamp circuit protection. It is an idealvoltage regulator for a variety of applications, from audio componentsand medical devices to precision power supplies and battery-poweredsystems.

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