LTC3892

Demonstration circuit 2493A is a high output voltage capable, high efficiency synchronous PolyPhase^® buck converter featuring the LTC3892EUH-2. The DC2493A has a wide input voltage range from 16V to 55V, and is capable of delivering up to 30A of output current. The output voltage of the DC2493A is set to 12V, however, the output voltage can go as high as 55V, with certain modifications. The DC2493A supports three operation modes: fixed-frequency modulation, pulse-skipping mode and Burst Mode^® operation. Fixed-frequency mode of operation reduces output voltage ripple, and yields a low noise switching spectrum. Burst Mode operation employs a variable frequency switching algorithm that minimizes the input quiescent current and improves efficiency at light loads.

Demonstration circuit 2493A is a high output voltage capable, high efficiency synchronous PolyPhase^® buck converter featuring the LTC3892EUH-2. The DC2493A has a wide input voltage range from 16V to 55V, and is capable of delivering up to 30A of output current. The output voltage of the DC2493A is set to 12V, however, the output voltage can go as high as 55V, with certain modifications. The DC2493A supports three operation modes: fixed-frequency modulation, pulse-skipping mode and Burst Mode^® operation. Fixed-frequency mode of operation reduces output voltage ripple, and yields a low noise switching spectrum. Burst Mode operation employs a variable frequency switching algorithm that minimizes the input quiescent current and improves efficiency at light loads.

Demonstration circuit 2727A is a high input voltage, high efficiency dual output DC/DC converter. It features the LTC®3892‑2, a low IQ, dual output, 2-phase synchronous step-down DC/DC controller. This demo board operates over a 6V to 40V input voltage range and produces a 3.3V at 10A and a 12V at 3A output.

The 12V output is designed using a SEPIC converter which allows a stable output voltage from an input voltage that can be above, below or equal to the output voltage. The 3.3V is provided using a synchronous step-down converter. These output voltages can easily be changed with certain modifications.

The gate drive voltage can be adjusted from 5V to 10V allowing the use of logic or standard level MOSFETs. The DC2727A supports three operation modes: forced continuous mode, pulse-skipping and Burst Mode® operation during light loads. Forced continuous mode reduces output voltage ripple and yields a low noise switching spectrum. The pulse-skipping and burst modes increased efficiency at light loads.

Both outputs of the DC2727A switch out of phase to reduce input filtering. The DC2727A supports selectable current limit and provides very low dropout operation with its 99% duty cycle capability. The DC2727A has a standard operating frequency of 250kHz, but can be adjusted in a range between 75kHz and as high as 850kHz. In addition, the LTC3892-2 integrates the bootstrap diodes which simplifies the design.

The DC2727A was designed to support multiple footprints of input/output capacitors and inductors to accommodate variety of applications. The data sheet of LTC3892-2 gives a complete description and application information, and must be read in conjunction with this demo board manual for DC2727A.

Demonstration circuit 2727A is a high input voltage, high efficiency dual output DC/DC converter. It features the LTC®3892‑2, a low IQ, dual output, 2-phase synchronous step-down DC/DC controller. This demo board operates over a 6V to 40V input voltage range and produces a 3.3V at 10A and a 12V at 3A output.

The 12V output is designed using a SEPIC converter which allows a stable output voltage from an input voltage that can be above, below or equal to the output voltage. The 3.3V is provided using a synchronous step-down converter. These output voltages can easily be changed with certain modifications.

The gate drive voltage can be adjusted from 5V to 10V allowing the use of logic or standard level MOSFETs. The DC2727A supports three operation modes: forced continuous mode, pulse-skipping and Burst Mode® operation during light loads. Forced continuous mode reduces output voltage ripple and yields a low noise switching spectrum. The pulse-skipping and burst modes increased efficiency at light loads.

Both outputs of the DC2727A switch out of phase to reduce input filtering. The DC2727A supports selectable current limit and provides very low dropout operation with its 99% duty cycle capability. The DC2727A has a standard operating frequency of 250kHz, but can be adjusted in a range between 75kHz and as high as 850kHz. In addition, the LTC3892-2 integrates the bootstrap diodes which simplifies the design.

The DC2727A was designed to support multiple footprints of input/output capacitors and inductors to accommodate variety of applications. The data sheet of LTC3892-2 gives a complete description and application information, and must be read in conjunction with this demo board manual for DC2727A.

Demonstration circuit 2190A is a high output voltage, high efficiency synchronous PolyPhase^® buck converter featuring the LTC3892EFE-1. This demo circuit is available in two versions. The input voltage range of both versions is from 16V to 55V. The DC2190A-A is configured using two each LTC3892EFE-1 devices with 4-phase interleaving operation which provides a 12V/60A output, while the DC2190A-B is configured using one LTC3892EFE-1 device with 2-phase interleaving operation which provides a 12V/30A output.

Demonstration circuit 2190A is a high output voltage, high efficiency synchronous PolyPhase^® buck converter featuring the LTC3892EFE-1. This demo circuit is available in two versions. The input voltage range of both versions is from 16V to 55V. The DC2190A-A is configured using two each LTC3892EFE-1 devices with 4-phase interleaving operation which provides a 12V/60A output, while the DC2190A-B is configured using one LTC3892EFE-1 device with 2-phase interleaving operation which provides a 12V/30A output.

Demonstration circuit 2190A is a high output voltage, high efficiency synchronous PolyPhase^® buck converter featuring the LTC3892EFE-1. This demo circuit is available in two versions. The input voltage range of both versions is from 16V to 55V. The DC2190A-A is configured using two each LTC3892EFE-1 devices with 4-phase interleaving operation which provides a 12V/60A output, while the DC2190A-B is configured using one LTC3892EFE-1 device with 2-phase interleaving operation which provides a 12V/30A output.

Demonstration circuit 2190A is a high output voltage, high efficiency synchronous PolyPhase^® buck converter featuring the LTC3892EFE-1. This demo circuit is available in two versions. The input voltage range of both versions is from 16V to 55V. The DC2190A-A is configured using two each LTC3892EFE-1 devices with 4-phase interleaving operation which provides a 12V/60A output, while the DC2190A-B is configured using one LTC3892EFE-1 device with 2-phase interleaving operation which provides a 12V/30A output.

Demonstration circuit 1998A is a high input voltage, high efficiency synchronous dual output buck converter featuring the LTC3892. The DC1998A has a wide input voltage range of 6V to 60V. The output voltages are set to 5V and 12V, however, the output voltage can be set almost as high as the input voltage (≤99% • V_IN), with certain modifications. This demo board is capable of delivering up to 8A from the 5V output and up to 5A from the 12V output.

Demonstration circuit 1998A is a high input voltage, high efficiency synchronous dual output buck converter featuring the LTC3892. The DC1998A has a wide input voltage range of 6V to 60V. The output voltages are set to 5V and 12V, however, the output voltage can be set almost as high as the input voltage (≤99% • V_IN), with certain modifications. This demo board is capable of delivering up to 8A from the 5V output and up to 5A from the 12V output.