DC2985A

DC2985A is a LT3380 multi-output power management solution with 4 buck switching and 3 LDO linear regulators with I2C demonstration board. DC2985A is a multi-output power management solution demonstration circuit, featuring the LT®3380. It contains two 2.5A, two 1.5A synchronous step-down DC/DC regulators and three 300mA LDO regulators. All regulators can be enabled with external enable pins. After the first regulator is enabled, the remaining enable pins use a precision threshold to allow hardwire-programmed power-up sequence. A micro-USB communication interface is integrated on board to allow software GUI to write or read the registers in LT3380 via its I2C serial port. This GUI can control regulator enables, power-down sequencing, output voltage levels, dynamic voltage scaling, operation modes, status reporting and other special functions.

• Input voltage range from 2.7 to 5.5V
• BUCK1 Output Voltage of 1.2V at BUCK1 enabled, I(BUCK1) = 0 - 2.5A, TA = 25°C
• BUCK2 output voltage of 1.5V at BUCK2 enabled, I(BUCK2) = 0 - 2.5A, TA = 25°C
• BUCK3 output voltage of 2.48V at BUCK3 enabled, I(BUCK3) = 0 - 1.5A, TA = 25°C
• BUCK4 output voltage of 1.81V at BUCK4 enabled, I(BUCK4) = 0 - 1.5A, TA = 25°C
• LDO1 output voltage of 1.2V at LDO1 enabled, I(LDO1) = 0-300mA, TA = 25°C
• LDO2 output voltage of 0.8V at LDO2 enabled, I(LDO2) = 0-300mA, TA = 25°C
• LDO3 output voltage of 1.8V at LDO3 enabled, I(LDO3) = 0-300mA, TA = 25°C

Notes

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