TPS79925DDCR

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

PMIC - Voltage Regulators - Linear

TPS79925DDCR is a low-drop, low-power linear voltage regulator specifically designed for wearable and portable electronic products. It is a low-drop precision voltage regulator with a programmable output voltage and has a wide input voltage range and flexible current limit, making it ideal for applications that require a programmable power source. This linear regulator operates with guaranteed 1% output accuracy, low drop-out voltage, low quiescent current and comes with a high-side MOSFET switch with adjustable current limit. It is suitable for a wide range of applications such as cellphone chargers, battery chargers, low-power systems, LED lighting, and power supplies. This type of regulator is also suitable for automotive and medical applications.

Advantages of TPS79925DDCR

• Low-drop precision voltage regulator with adjustable current limit.
• Wide input voltage range of 5 V to 6 V.
• Wide output voltage range of 1.2 V to 5.1 V.
• Low quiescent current reducing power consumption.
• High-side MOSFET switch with adjustable current limit.
• High load transient response with fast-acting MOSFET.
• Guaranteed 1% output accuracy with over-voltage, reverse current and low-side current limit protection.
• Compact SOT-23 package.
• Thermal protection.

Application Fields

TPS79925DDCR is an ideal candidate for applications requiring a low-drop precision voltage regulator within a small form factor. It is suitable for portable laptop power supplies and battery chargers, low-power systems, LEDs, and automotive and medical applications. It can be used for power supplies in wearable applications such as fitness tracking devices and smartwatches.

Working Principle

TPS79925DDCR is designed to obtain a low-drop output with fast load transients response. It ensures a low drop-out voltage and high accuracy. This voltage regulator consists of a voltage reference, an error amplifier, adjustable current limit circuitry, a control logic gate, a high-side MOSFET switch, a current sense amplifier, a low-side switch, and a thermal protection circuit. In order to regulate the output voltage, the control logic gate compares the voltage reference voltage with the feedback voltage. The error amplifier amplifies the difference between them and controls the high-side switch as well as the low-side switch on and off according to the difference between the reference voltage and feedback voltage. The current sense amplifier senses the current flowing through the MOSFET switch and its output is then used to adjust the current limit circuitry. The thermal protection circuit will shut down the device when the temperature exceeds a predetermined limit.

TPS79925DDCR is a precision low-drop linear voltage regulator that enables adjustable current limit and a wide input voltage range. It is suitable for a wide range of applications such as cellphone chargers, battery chargers, low-power systems, LED lighting, and power supplies.

The specific data is subject to PDF, and the above content is for reference