TPS62442-Q1中文资料具有可调频率并采用 QFN 封装的汽车类 2.75V 至 6V 双路降压转换器数据手册TI规格书

描述 Description

The TPS6244x-Q1 is a family of pin-to-pin dual 1-A, dual 2-A, and 3-A/1-A high-efficiency and easy-to-use synchronous step-down DC/DC converters. They are based on a peak current mode control topology. They are designed for automotive applications such as infotainment and advanced driver assistance systems. Low resistive switches allow up to 3-A continuous output current and a total maximum output current up to 4-A at high ambient temperature. The switching frequency is externally adjustable from 1.8 MHz to 4 MHz and can also be synchronized to an external clock in the same frequency range. In PWM/PFM mode, the TPS6244x-Q1 automatically enters power save mode at light loads to maintain high efficiency across the whole load range. The TPS6244x-Q1 provides a 1% output voltage accuracy in PWM mode, which helps design a power supply with high output voltage accuracy.

The TPS6244x-Q1 is available as an adjustable voltage version, packaged in a VQFN package.

特性 Features

• AEC-Q100-qualified for automotive applications
• Functional Safety-Capable
• Input voltage range: 2.75 V to 6 V
• Output voltage accuracy ±1% (PWM operation)
• Adjustable switching frequency of 1.8 MHz to 4 MHz
• User-defined undervoltage lockout
• Two power-good outputs with window comparator
• 100% duty cycle mode
• Optional spread spectrum clocking
• TJ = –40°C to +150°C
• 2.3-mm × 2.7-mm QFN package with wettable flanks