TPS628640 Series

4-A synchronous step-down converter with I2C interface in 1.05-mm x 1.78-mm WCSP package

Catalog

4-A synchronous step-down converter with I2C interface in 1.05-mm x 1.78-mm WCSP package

Part	Current - Output	Voltage - Input (Max) [Max]	Output Type	Package / Case	Supplier Device Package	Mounting Type	Voltage - Output (Max)	Synchronous Rectifier	Topology	Number of Outputs	Output Configuration	Operating Temperature [Min]	Operating Temperature [Max]	Voltage - Input (Min) [Min]	Frequency - Switching	Function	Voltage - Output (Min/Fixed)	Voltage - Output (Max) [Max]
Texas Instruments TPS628640BYCGR	4 A	5.5 V	Adjustable	15-XFBGA DSBGA	15-DSBGA (2x1.3)	Surface Mount	1.15 V		Buck	1	Positive	-40 °C	125 ¯C	2.4 V	2.4 MHz	Step-Down	0.4 V
Texas Instruments TPS628640AYCGR	4 A	5.5 V	Adjustable	15-XFBGA DSBGA	15-DSBGA (2x1.3)	Surface Mount			Buck	1	Positive	-40 °C	125 ¯C	2.4 V	2.4 MHz	Step-Down	0.4 V	1.675 V

Catalog

4-A synchronous step-down converter with I2C interface in 1.05-mm x 1.78-mm WCSP package

Key Features

• 7-mΩ and 6.5-mΩ internal power MOSFETs>90% efficiency (0.9-V output)DCS-control topology for fast transient response1% output voltage accuracy4-µA operating quiescent current2.4-V to 5.5-V input voltage range2.4-MHz switching frequencySelection by external resistorStart-up output voltageI2C slave addressSelection by I2C interfacePower save mode or forced PWM modeOutput dischargeHiccup or latching short-circuit protectionOutput voltage ramp speedVID pin for dynamic voltage scaling (DVS)Thermal pre-warning and thermal shutdownPower good indicator pin optionI2C-compatible interface up to 3.4 MbpsAvailable in 1.05-mm x 1.78-mm x 0.5-mm 15-pin WCSP package with 0.35-mm pitchCreate a custom design using the TPS62866 with theWEBENCH® Power Designer7-mΩ and 6.5-mΩ internal power MOSFETs>90% efficiency (0.9-V output)DCS-control topology for fast transient response1% output voltage accuracy4-µA operating quiescent current2.4-V to 5.5-V input voltage range2.4-MHz switching frequencySelection by external resistorStart-up output voltageI2C slave addressSelection by I2C interfacePower save mode or forced PWM modeOutput dischargeHiccup or latching short-circuit protectionOutput voltage ramp speedVID pin for dynamic voltage scaling (DVS)Thermal pre-warning and thermal shutdownPower good indicator pin optionI2C-compatible interface up to 3.4 MbpsAvailable in 1.05-mm x 1.78-mm x 0.5-mm 15-pin WCSP package with 0.35-mm pitchCreate a custom design using the TPS62866 with theWEBENCH® Power Designer

Description

The TPS62864 and TPS62866 devices are high-frequency synchronous step-down converters with I2C interface which provide an efficient, adaptive, and high power-density solution. At medium to heavy loads, the converter operates in PWM mode and automatically enters Power Save Mode operation at light load to maintain high efficiency over the entire load current range. The device can also be forced in PWM mode operation for smallest output voltage ripple. Together with its DCS-control architecture, excellent load transient performance and tight output voltage accuracy are achieved. Via the I2C interface and a dedicated VID pin, the output voltage is quickly adjusted to adapt the power consumption of the load to the ever-changing performance needs of the application. The TPS62864 and TPS62866 devices are high-frequency synchronous step-down converters with I2C interface which provide an efficient, adaptive, and high power-density solution. At medium to heavy loads, the converter operates in PWM mode and automatically enters Power Save Mode operation at light load to maintain high efficiency over the entire load current range. The device can also be forced in PWM mode operation for smallest output voltage ripple. Together with its DCS-control architecture, excellent load transient performance and tight output voltage accuracy are achieved. Via the I2C interface and a dedicated VID pin, the output voltage is quickly adjusted to adapt the power consumption of the load to the ever-changing performance needs of the application.