TPS768-Q1数据手册TI中文资料规格书

描述 Description

This device is designed to have a fast transient response and be stable with 10 µF capacitors. This combination provides high performance at a reasonable cost.Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 230 mV at an output current of 1 A for the TPS76850-Q1) and is directly proportional to the output current. Additionally, because the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (typically 85 µA over the full range of output current, 0 mA to 1 A). These two key specifications yield a significant improvement in operating life for battery-powered systems. This LDO family also features a shutdown mode; applying a TTL high signal to the enable (EN) input shuts down the regulator, reducing the quiescent current to less than 1 µA at TJ = 25°C.Power good (PG) is an active-high output, which can be used to implement a power-on reset or a low-battery indicator.The TPS768xx-Q1 is offered in 1.8-V, 2.5-V, 3.3-V, and 5-V fixed-voltage versions and in an adjustable version (programmable over the range of 1.2 V to 5.5 V). Output voltage tolerance is specified as a maximum of 2% over line, load, and temperature ranges. The TPS768xx-Q1 family is available in a 20-pin PWP package.

特性 Features

• Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
• Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
• Device HBM ESD Classification Level H2
• Device CDM ESD Classification Level C4B

• 1-A Low-Dropout (LDO) Voltage Regulator
• Available in 1.8-V, 2.5-V, 3.3-V, and 5-V Fixed-Output and an Adjustable Version
• Dropout Voltage Down to 230 mV at 1 A (TPS76850-Q1)
• Ultralow 85-µA Typical Quiescent Current
• Fast Transient Response
• 2% Tolerance Over Specified Conditions for Fixed-Output Versions
• Open-Drain Power Good (See TPS767xx-Q1 for Power-On Reset With 200-ms Delay Option)
• 20-Pin TSSOP (PWP) Package
• Thermal Shutdown Protection