LTC3603EUF#TRPBF

The LTC3603EUF#TRPBF is an integrated DC-DC synchronous buck regulator designed for applications such as DSPs, memories, FPGAs, and microcontrollers that require a wide range of output voltages. It offers a high switching frequency of up to 1.8MHz, high power efficiency with wide VIN operating range and output voltage accuracy, great transient response, and excellent line and load regulation. The device is built with two integrated power stages and one current sensor, providing a simplified BOM. It also includes a wide array of safety features such as short-circuit, overtemperature and overvoltage protections.

The LTC3603EUF#TRPBF offers two operating modes: pulse frequency modulation (PFM) mode and pulse width modulation (PWM) mode. In PFM mode, the device operates in a burst frequency mode where the switch is enabled only when an output load is detected. This mode minimizes quiescent current and improves overall efficiency when output power levels are low. In PWM mode, the device operates at a fixed frequency for improved system noise performance and line/load regulation of the output voltage.

The LTC3603EUF#TRPBF also features an internal soft-start, allowing the output voltage to gradually ramp up from 0V without overshoot. Additionally, the device features an Integrated-FET Technology (IFT) allowing it to directly drive a load and eliminating the need for an external P-channel power MOSFET in the buck converter circuit for improved efficiency.

The LTC3603EUF#TRPBF is ideal for applications such as portable computers, cell phones, PDAs, and other devices that require low output voltages. It has low profile and small size, packaging in a 10-pin miniDFN, or a 10-pin MSOP-EP package ideal for both commercial and automotive applications.

In conclusion, the LTC3603EUF#TRPBF is a DC-DC synchronous buck regulator designed for applications that require a wide range of output voltages. It offers high power efficiency with a wide input voltage range, excellent line and load regulation, a fixed frequency operating mode and an integrated power stage and current sensor, making it ideal for portable IT and telecom applications.