TPS50602-SP数据手册TI中文资料规格书

描述 Description

The TPS50602-SP is a dual TPS50601A-SP die, TID and SEE radiation hardened, 7-V, 12-Asingle output or 6-A dual output synchronous step-down converter, which is optimized for ultrasmall form factor designs. This is achieved integrating highly efficiency high-side and low-sideMOSFETs and excellent thermal performance. Further space savings are achieved through the dualoutput configuration, which reduces the overall solution size if multiple 6-A rails are needed. Theoutput voltage startup ramp is controlled by the SS/TR pin which allows operation as either a standalone power supply or in tracking applications. Power sequencing is also possible by correctlyconfiguring the enable and the open drain power good pins. Thermal shutdown disables the part whendie temperature exceeds thermal shutdown temperature.

特性 Features

• 5962R18207：
- 耐辐射高达 100krad (Si) TID
• 单粒子锁定 (SEL)、单粒子烧毁 (SEB) 和单粒子栅穿 (SEGR) 对于 LET 的抗扰度 = 75MeV-cm2/mg
• 提供 SET/SEFI 横截面图
• 峰值效率：95% (VO=3.3V)
• 集成型 48mΩ 和 37mΩ MOSFET (PVIN = 5V)
• 电源轨：3V 至 7V（输入电压）
• 单输出配置中的最大输出电流为 12A，双输出配置中的最大输出电流为 6A
• 500kHz 固定开关频率，使用内部振荡器或外部时钟（100kHz 至 1MHz 之间呈 180° 异相）
• 在温度、辐射耐受性以及线路和负载调节范围内提供 0.804V ±1.5% 的电压基准
• 单调启动至预偏置输出
• 通过外部电容器进行可调节的软启动
• 用于电源定序的输入使能和电源正常输出
• 针对欠压和过压问题的电源正常输出监控
• 可调节输入欠压锁定 (UVLO)