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      1. 位置:51電子網 » 企業新聞

        TPS65252RHDR

        發布時間:2022/6/11 15:38:00 訪問次數:20發布企業:深圳市億鴻豐電子科技有限公司

        TPS65252RHDR功能類型:降壓型 TPS65252 具有 USB 開關的 4.5V 至 16V 輸入、3A/2A 輸出雙路降壓轉換器

        DESCRIPTION/ORDERING INFORMATION The TPS65252 features two synchronous wide input range high efficiency buck converters. The converters are designed to simplify its application while giving the designer the option to optimize their usage according to the target application. The converters can operate in 5-, 9- or 12-V systems and have integrated power transistors. The output voltage can be set externally using a resistor divider to any value between 0.8 V and the input supply minus 1 V. Each converter features enable pin that allows a delayed start-up for sequencing purposes, soft start pin that allows adjustable soft-start time by choosing the soft-start capacitor, and a current limit (RLIMx) pin that enables designer to adjust current limit by selecting an external resistor and optimize the choice of inductor. The COMP pin allows optimizing transient versus dc accuracy response with a simple RC compensation. The switching frequency of the converters can be set with an external resistor connected to ROSC pin. The switching regulators are designed to operate from 300 kHz to 2.2 MHz. The converters operate with 180° phase between them to minimize the input filter requirements. TPS65252 also features a low power mode enabled by an external signal, which allows for a reduction on the input power supplied to the system when the host processor is in stand-by (low activity) mode.

        FEATURES APPLICATIONS • Wide Input Supply Voltage Range • DTV (4.5 V - 16 V) • DSL Modems • Output Range 0.8 to ~VIN - 1 V • Cable Modems • Fully Integrated Dual Buck, • Set Top Boxes 3.5-A/2.5-A Maximum Current, • Car DVD Players 3-A/2-A Continuous Operation • Home Gateway and Access Point Networks • High Efficiency • Wireless Routers • Switching Frequency: 300 kHz - 2.2 MHz Set By External Resistor • External Enable/Sequencing Pins • Adjustable Cycle-By-Cycle Current Limit Set By External Resistor • Soft Start Pins • Current Mode Control With Simple Compensation Circuit • Power Good and Reset Generator • Low Power Mode Set By External Signal • One Current Adjustable USB Switch With Over Current Protection • Supervisory Circuit • QFN Package, 28-Pin 5 mm x 5 mm RHD

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        TPS65252RHDR

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