TPS65265 - TPS65265 4.5V 至 17V 输入电压、5A/3A/2A 输出电流、三路降压

TPS65265是TI德州仪器公司的一款转换器（集成开关）产品，TPS65265是TPS65265 4.5V 至 17V 输入电压、5A/3A/2A 输出电流、三路降压，本站介绍了TPS65265的封装应用图解、特点和优点、功能等，并给出了与TPS65265相关的TI元器件型号供参考。

TPS65265 - TPS65265 4.5V 至 17V 输入电压、5A/3A/2A 输出电流、三路降压 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品描述

The TPS65265 incorporates triple synchronous buck converters with 4.5-V to 17-V wide input voltage range that encompassed most intermediate bus voltage operating off 5-, 9-, 12- or 15-V power bus or battery. The converter with constant frequency peak current mode is designed to simplify its application while giving designers options to optimize the system according to targeted applications. The switching frequency of the converters can be adjustable from 250 kHz to 2.3 MHz with an external resistor or external clock. 120° out-of-phase operation between Buck1, Buck2, and Buck3 minimizes the input filter requirements.

The TPS65265 operates in pulse skipping mode (PSM) with driving MODE pin to high or leaving float and operates in force continuous current mode (FCC) with connecting MODE pin to GND. PSM mode provides high efficiency by reducing switching losses at light load and FCC mode reduces noise susceptibility and RF interference.

The TPS65265 is available in a 32-pin thermal enhanced QFN (RHB) 5-mm × 5-mm thin package.

产品特性

Operating Input Voltage Range 4.5 V to 17 V
Feedback Reference Voltage 0.6 V ±1.33%
Continuous Output Current 5 A/3 A/2 A
Adjustable Clock Frequency from 250 kHz to 2.3 MHz
External Synchronization Oscillator
120° Out of Phase for Buck1, Buck2, Buck3
Dedicated Enable Pins for Each Buck
Fixed SS Time for Each Buck (2.4 ms)
Automatic Power-Up/Power-Down Sequence and Adjustable Interval Time Between Bucks (6 Combinations)
Support Pulse Skipping Mode (PSM) and Forced Continuous Current Mode (FCCM)
Output Voltage Power Good Indicator and Adjustable Delay Time
Thermal Overloading Protection
32-Pin QFN (RHB) 5-mm × 5-mm Package

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