TPS53314RGFR

TPS53314是一款具有集成型MOSFET的D-CAP™模式、6A同步开关。该器件专为实现易用性、低外部组件数和小型封装电源系统而设计。 该器件具有单轨输入支持能力、一个20 mΩ和一个7.5 mΩ集成型MOSFET、1%准确度、0.6 V基准以及集成型升压开关。部分具有竞争力的特性包括：>96%的最大效率、3 V至15 V的宽输入电压范围、超低的外部组件数、用于实现超快瞬态响应的D-CAP™模式控制、可选的自动跳跃和PWM操作方式、内部软启动控制、可调频率且无需补偿。 转换输入电压范围为3 V至15 V，电源电压范围为4.5 V至25 V，而输出电压范围则为0.6 V至5.5 V。 TPS53314采用5 mm×7 mm 40引脚QFN封装，并具有 -40°C至85°C的规定温度范围。 The TPS53314 is a high-efficiency, single channel, synchronous buck converter suitable for low output voltage point-of-load applications in computing and similar digital consumer applications. The device features proprietary D-CAP™mode control combined with an adaptive on-time architecture. This combination is ideal for building modern low duty ratio, ultra-fast load step response DC-DC converters. The output voltage ranges from 0.6 V to 5.5 V. The conversion input voltage range is from 3 V up to 15 V. The D-CAP™mode uses the ESR of the output capacitor(s) to sense the device current. One advantage of this control scheme is that it does not require an external phase compensation network. This allows a simple design with a low external component count. Eight preset switching frequency values can be chosen using a resistor connected from the RF pin to ground or the VREG pin. Adaptive on-time control tracks the preset switching frequency over a wide input and output voltage range while allowing the switching frequency to increase at the step-up of the load. The TPS53314 has a MODE pin to select between auto-skip mode and forced continuous conduction mode (FCCM) for light load conditions. The MODE pin also sets the selectable soft-start time ranging from 0.7 ms to 5.6 ms.

• 转换输入电压范围：3 V至15 V
• VDD输入电压范围：4.5 V至25 V
• 输出电压范围：0.6 V至5.5 V
• 5V LDO输出具有6A连续输出电流的集成型功率MOSFET
• <10 μA停机电流
• 用于提高轻负载效率的Auto-Skip Eco-mode™
• 具有快速瞬态响应的D-CAP™模式
• 可利用一个外部电阻器在250 kHz至1 MHz的范围内选择开关频率
• 内置±1%、0.6V基准
• 0.7-ms、1.4-ms、2.8-ms和5.6-ms可选内部电压伺服软启动
• 预充电启动能力
• 集成型升压开关
• 可通过外部电阻器来调节过流限值
• 过压/欠压、UVLO和过热保护
• 支持全陶瓷输出电容器
• 漏极开路电源状态良好指示
• 采用PowerPAD™的40引脚QFN封装

• 服务器和台式计算机
• 笔记本电脑
• 电信设备