TPPM0111中文资料用于提供 3.3V 和 1.5V 输出的 1.5A、双通道低压降稳压器数据手册TI规格书

描述 Description

The TPPM0111 is a power source intended for use in systems that have a single 5-V input source and require dual, linearly-regulated, low-dropout voltage sources. The outputs must track within 2 V of each other during all conditions and modes of operation. Each output is protected against overcurrent conditions. In the event that one of the outputs is shorted to ground, the other output must maintain a voltage output differential of less than 2 V compared to the output with the abnormal condition.

The 3.3-V ±3% regulated output is capable of driving loads of 1.5 A, and the 1.5-V ±2% regulated output is capable of driving loads of 300 mA under all normal operating conditions. The device is available in a PowerPAD™ thermally-enhanced package for efficient heat management, and requires a copper plane to dissipate the heat.

特性 Features

• Dual Voltage Output, 3.3 V ±3% and 1.5 V ±2%
• 3.3-V Output Within 2 V of 1.5-V Output Under All Conditions
• 1.5-A Load Current Capability on 3.3-V Output
• 300-mA Load Current Capability on 1.5-V Output
• Overcurrent Protection for Both Outputs
• Thermally-Enhanced Packaging Concept for Efficient Heat Management
• Thermal Shutdown to Protect Device During Excessive Power Dissipation

简介

TPPM0111属于集成电路（IC）的线性+开关稳压器。由TI制造生产的TPPM0111稳压器 - 线性线性稳压器用于提供稳定的输出电压，无论负载电流、输入电压或环境因素如何变化，这些输出电压通常都要保持不变。它们的工作原理要求输入电压维持在高于所需的输出电压，而且要超出某个最小量，并且在工作时会将输入端的任何多余电压转换为热量。对于大多数应用而言，虽然这种稳压器的效率低于开关模式的稳压器，但它们通常更适合对噪声高度敏感的应用。