A5975D数据手册集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF

描述 Description

The A5975D is a step-down monolithic power switching regulator with a minimum switch current limit of 3.75 A, it is therefore able to deliver up to 3 A DC current to the load depending on the application conditions. The output voltage can be set from 1.235 V to 35 V. The high current level is also achieved thanks to a HSOP8 package with exposed frame, that allows to reduce the RTHJ-A down to approximately 40 °C/W. The device uses an internal P-channel DMOS transistor (with a typical RDS(on) of 250 mΩ) as switching element to minimize the size of the external components. An internal oscillator fixes the switching frequency at 250 kHz. Having a minimum input voltage of only 4 V, it fits automotive applications requiring device operation even in cold crank conditions. Pulse-by-pulse current limit with the internal frequency modulation offers an effective constant current short-circuit protection.

特性 Features

• Qualified following the AEC-Q100 requirements (see PPAP for more details)
• 3 A DC output current
• Operating input voltage from 4 V to 36 V
• 3.3 V / (±2%) reference voltage
• Output voltage adjustable from 1.235 V to 35 V
• Low dropout operation: 100% duty cycle
• 250 kHz internally fixed frequency
• Voltage feed-forward
• Zero load current operation
• Internal current limiting
• Inhibit for zero current consumption
• Synchronization
• Protection against feedback disconnection
• Thermal shutdown

简介

A5975D属于集成电路（IC）的稳压器-DC-DC开关稳压器。由制造生产的A5975D稳压器 - DC-DC 开关稳压器DC-DC 开关稳压器 PMIC（电源管理集成电路）产品族中的产品是元器件级设备，用于需要稳定 DC 输入电压和/或将其转换为不同幅度的输出电压的应用。这些器件与称为“控制器”PMIC 的类似产品的区别在于集成了主开关元件，设备提供的电力会通过该元件。