ASP1212-N50NT Datasheet/PDFThe ASP1212-N50NT is a 2-channel, low drop-out (LDO) voltage regulator chip that is ideal for power management in various computing and industrial applications. It is mainly used in applications that require efficient and reliable power delivery, such as computers, mobile phones, tablet computers, game consoles, and other consumer electronics. The device features an integrated 0.5 A current limiter that is used to ensure good transient response and system safety. It also features a programmable output voltage setting, which allows users to set their desired output voltage in the range of 0.7V to 1.8V.
The ASP1212-N50NT includes an under-voltage lock-out circuit that helps protect circuits from over-voltage conditions. In addition, the device also includes a Power Good (PG) signal output that indicates when the output voltage is within the correct operating range. There is also thermal protection for the chip’s power Transistors, which becomes active when the junction temperature exceeds the maximum limit.
The working principle of ASP1212-N50NT is simple: it starts in shut-down mode when the supply voltage is applied and the control SS line is at “low”. When the SS line is pulled high, the current limiting circuit senses the load current and the current limiting transistors will start to limit the current flow. When the SS line is driven to high, the under-voltage lock-out (UVLO) circuit will detect whether the output voltage is higher than the preset voltage. If the output voltage is higher, the under-voltage lock-out (UVLO) circuit will start to limit the current flow. Once the output voltage is within the preset voltage range, the Power Good (PG) signal will become active. The Power Good (PG) signal will indicate that the output voltage is within the correct range.
In summary, the ASP1212-N50NT is a reliable and efficient LDO voltage regulator chip that is designed to meet the power management requirements in various computing and industrial applications. It provides efficient power delivery, adequate protection from over-voltage conditions, and a programmable output voltage setting. The device also includes a Power Good signal that indicates when the output voltage is within the correct range, as well as thermal protection for the chip’s power transistors. This makes it an ideal choice for power management in various applications.