Texas Instruments

TPS78401DBVR

The TPS78401DBVR is a low-dropout (LDO) linear voltage regulator manufactured by Texas Instruments. This device is designed to provide a stable and reliable voltage output for a wide range of applications, including automotive, industrial, and consumer electronics.

Description:

The TPS78401DBVR is a low-dropout linear regulator that operates from an input voltage range of 2.5V to 5.5V and provides an adjustable output voltage as low as 0.9V. It features a very low dropout voltage of typically 300mV at 1A load, which makes it suitable for battery-powered applications where minimizing power consumption is critical.

Features:

1. Low dropout voltage: 300mV at 1A load
2. Adjustable output voltage: as low as 0.9V
3. Input voltage range: 2.5V to 5.5V
4. Output current capability: up to 1A
5. Low quiescent current: 5.5µA (typical)
6. High PSRR (Power Supply Reject Ratio): 80dB at 1kHz
7. Small package size: available in SOT-23 and SC-70 packages
8. Over-current protection and thermal shutdown protection

Applications:

1. Portable devices: smartphones, tablets, and wearables
2. Automotive applications: infotainment systems, instrument clusters, and body control modules
3. Industrial equipment: sensor power supplies and control systems
4. Consumer electronics: IoT devices, smart home appliances, and personal electronics
5. Medical equipment: portable medical devices and wearable medical equipment
6. Battery-powered devices: wireless communication modules and backup power systems

The TPS78401DBVR's combination of low dropout voltage, adjustable output voltage, and low quiescent current makes it an ideal choice for a wide range of applications where efficient power regulation and compact form factor are essential.