LTC1539CGW#TRPBF

PMIC - Voltage Regulators - DC DC Switching Controllers

The LTC1539CGW#TRPBF is a DC/DC switching controller IC suitable for a wide range of applications such as portable electronics, industrial control systems and general purpose power supplies. It offers excellent performance with its high switching frequency, low quiescent current, fast transient response and programmable current limit. This IC is designed for use with external N-FET drivers or connections to suitable external power conversion components.

The LTC1539CGW#TRPBF is a wide input range synchronous step-down DC/DC switching controller capable of driving up to two external N-Channel power switches. The benefits from such an architecture include lower power consumption, faster transient response, simpler circuit design and isolated power buses. It also includes under voltage lockout protection and a power-good output.

The LTC1539CGW#TRPBF is equipped with a wide range of features. Such features include an integrated loop soft-start, dual independent operating frequency control, adjustable output voltage accuracy, adjustable switching frequency, and much more. The output current is also programmable and adjustable using an external resistor. The IC’s low RDS(ON) allows it to easily drive large power FETs.

The LTC1539CGW#TRPBF can be used for a variety of applications due to its wide operating voltage range of 4.5V to 24V and current limit setting options. It is suitable for applications including portable electronics, automotive systems and industrial power supplies. The wide input voltage range, adjustable output voltage and fast transient response make it suitable for a variety of power conversion applications. The high switching frequency also reduces the size of external components in the design, lowering the total BOM cost.

The working principle of the LTC1539CGW#TRPBF is simple. The IC receives a voltage input and then uses an internal control loop to maintain a regulated output voltage by switching a power network using either external MOSFETs or internal logic devices. The internal clock of the IC is used to synchronize the circuit and a feedback voltage is used to adjust the output voltage level. An external current set resistor is used to adjust the output current limit setting.