LTC3855IUJ#TRPBF

The LTC3855IUJ#TRPBF is a versatile and high-performance PolyPhase® current-mode synchronous buck switching regulator controller. This device is designed to drive all N-channel power MOSFET stages and features a high-speed differential remote sense amplifier. Here are the key specifications and highlights of the LTC3855IUJ#TRPBF:

1. Dual-Channel and PolyPhase® Operation:

   • The LTC3855IUJ#TRPBF operates in a dual-channel, multiphase configuration, which helps to minimize output ripple and component sizes.
   • The two controller output stages operate 180° out-of-phase for optimal efficiency and noise reduction.

2. Wide Input Voltage Range:

   • The device supports a wide input voltage range from 4.5V to 38V, accommodating a variety of intermediate bus voltages and battery chemistries.

3. Adjustable Output Voltage:

   • The LTC3855IUJ#TRPBF can generate an output voltage up to 12.5V, with a precise 0.6V reference.
   • The output voltage is adjustable and can be configured based on specific application requirements.

4. High-Speed Differential Remote Sense Amplifier:

   • The integrated high-speed differential remote sense amplifier allows for accurate current sensing.
   • The maximum current sense voltage is programmable for 30mV, 50mV, or 75mV, enabling the use of either the inductor DCR or a discrete sense resistor as the sensing element.

5. DCR Temperature Compensation:

   • The LTC3855IUJ#TRPBF includes DCR temperature compensation to maintain accurate current sensing over a wide temperature range.

6. Advanced Protection Features:

   • The device features overvoltage protection, overcurrent protection, and thermal shutdown protection to ensure safe and reliable operation.

7. Flexible Operation Modes:

   • The LTC3855IUJ#TRPBF supports burst mode operation, continuous mode, and pulse-skipping mode, providing flexibility to optimize efficiency based on load conditions.

8. Package and Sealing:

   • The LTC3855IUJ#TRPBF is available in a compact 40-pin 6mm x 6mm QFN package and a 38-pin exposed pad FE package, making it suitable for space-constrained applications.

In summary, the LTC3855IUJ#TRPBF is a high-performance, dual-channel, multiphase synchronous buck switching regulator controller that offers a wide input voltage range, adjustable output voltage, high-speed differential remote sense amplifier, DCR temperature compensation, and advanced protection features. Its compact package and flexible operation modes make it an ideal choice for a variety of power management applications.