LT1317BCS8

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 LT1317BCS8 is a monolithic, synchronous, step-down switching regulator designed to deliver adjustable outputs up to 6A. It is a high-performance regulator offering high peak current mode and low dropout voltage. This regulator also features adjustable soft-start and a power save mode to keep the voltage steady while conserving power.

The LT1317BCS8 belongs to the PMIC - Voltage Regulators - DC DC Switching Regulators family. It is designed to step down voltage in a wide input range of 4.5V to 24V and maintain output voltages as low as 0.6V. It is ideal for regulating voltage for a variety of applications including microprocessors, memory, power line conditioning and voltage regulation, battery charging, portable devices, and more.

The LT1317BCS8 consists of an internal synchronous rectifier, peak current detect block and a logic block. The rectifier is the main component, which is responsible for the input-to-output voltage conversion. It consists of an n-channel and p-channel MOSFET. The p-channel MOSFET acts as a power switch, and the n-channel MOSFET as a synchronous rectifier to reduce power loss. The current-sense comparator senses the output current and detects when the output drops below a given threshold. When the output drops below the threshold, the rectifier is turned off and the current-sense comparator stops turning on the p-channel switch, reducing power losses.

The peak current detect block consists of a resistor divider and a capacitor. The capacitive voltage is proportional to the current flowing, and when the current flow reaches the peak current threshold, the capacitor voltage will exceed a predetermined value. Once this voltage is reached, the logic block is triggered and the rectifier is shut off. This prevents the LT1317BCS8 from over-driving and potentially damaging the output device.

The LT1317BCS8 also includes an adjustable soft-start, which prevents large inrush currents when the device is initially turned on. The soft-start is adjustable with an external capacitor, and can be turned off by setting the capacitor to zero. The LT1317BCS8 also has a power save mode which keeps the output voltage at a certain level, while consuming minimal power. This feature can be enabled and disabled with an external control pin.

In summary, the LT1317BCS8 is a high-performance and highly efficient regulator designed for step-down DC-DC conversion. It is ideal for a variety of applications such as microprocessors, memory, power line conditioning and voltage regulation, battery charging, portable devices, and more. It offers adjustable soft-start, low power consumption in power save mode, peak current detection to prevent overdriving and damaging the output device, and a wide input range of 4.5V to 24V.

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