LM2593HVS-ADJ

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The LM2593HVS-ADJ is a synchronous buck PWM/PFM switch mode step-down DC regulator with an adjustable output voltage. It is capable of providing up to 3A output current and has a wide input voltage range from 6V to 30V. This device is suitable for applications that require wide input voltage ranges such as Li-Ion battery powered equipment, automotive, and portable systems. The LM2593HVS-ADJ also features an adjustable output voltage range of 1.23V to 24V and an integrated frequency-locked loop (FLL) that helps maintain a constant output frequency even with changes in input voltage or load. It is a highly efficient regulator with an efficiency of up to 95%.

The LM2593HVS-ADJ is part of an integrated power management circuit family offering a variety of special features and packages. It is optimized for excellent transient response by using its internal soft-start and a fixed-frequency voltage mode control scheme. This feature allows the LM2593HVS-ADJ to quickly respond to dynamic load conditions. Additionally, this device offers short circuit protection, thermal shutdown protection and undervoltage (UVLO) protection, which help safeguard the device and extend its life.

The LM2593HVS-ADJ is commonly used in battery operated applications such as handheld devices, digital cameras and portable games. It can also be used in automotive applications and other high efficiency applications where excellent transient response, high efficiency and simple design are crucial. Additionally, the device is housed in the TSOP-5 package and is lead-free, halogen-free and RoHS compliant.

The LM2593HVS-ADJ\'s working principle relies on the use of an internal voltage mode PFM/PWM controller. The controller is triggered when the input voltage (VIN) exceeds the rising low side VINUVLO threshold and is switched off when the input voltage drops below the falling low side VINUVLO threshold. This controller then cycles the power MOSFET using the fixed frequency voltage mode operation. During the steady state the PFM/PWM controller automatically adjusts the ON/OFF ratio of the power MOSFET to achieve an constant output voltage (VOUT).

The LM2593HVS-ADJ also features a Soft-Start functionality which helps reduce output voltage transients during start-up. The soft-start signal is generated by the external capacitor connected to the SS/SD pin. The soft-start signal is compared to the voltage on the VOUT pin and when the difference reaches zero, the Soft-Start function is disabled.

The LM2593HVS-ADJ offers excellent line and load transient response, as well as excellent thermal stability. Its wide input voltage range and adjustable output voltage allows for a wide range of applications. The LM2593HVS-ADJ is an excellent choice for all synchronous buck DC/DC switching regulator applications, offering reliable performance and low cost.

The specific data is subject to PDF, and the above content is for reference