TPS51020 Series

Dual, DDR selectable, Synchronous buck controller

Catalog

Dual, DDR selectable, Synchronous buck controller

Part	Voltage - Input [Max]	Voltage - Input [Min]	Main Purpose	Utilized IC / Part	Outputs and Type	Outputs and Type	Voltage - Output	Supplied Contents	Regulator Topology	Frequency - Switching	Current - Output	Board Type	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Number of Outputs	Applications	Supplier Device Package	Package / Case [x]	Package / Case [y]	Package / Case	Voltage - Output [Max]	Voltage - Output [Min]
Texas Instruments TPS51020EVM-001	20 V	8 V	DC/DC Step Down	TPS51020	2	Non-Isolated	3.3 V 5 V	Board(s)	Buck	300 kHz	6 A	Fully Populated
Texas Instruments TPS51020DBTRG4	28 V	4.5 V											85 °C	-40 °C	Surface Mount	2	Controller DDR	30-TSSOP	0.173 in	4.4 mm Width	30-TFSOP	24 V	0.9 V
Texas Instruments TPS51020DBTR	28 V	4.5 V											85 °C	-40 °C	Surface Mount	2	Controller DDR	30-TSSOP	0.173 in	4.4 mm Width	30-TFSOP	24 V	0.9 V

Catalog

Dual, DDR selectable, Synchronous buck controller

Key Features

• Wide Input Voltage Range: 4.5-V to 28-VSelectable Dual and DDR ModesSelectable Fixed Frequency Voltage ModeAdvanced Power Good Logic Monitors both ChannelsSelectable Autoskip ModeIntegrated Boot Strap Diodes180° Phase Shift Between ChannelsIntegrated 5-V, 60-mA RegulatorInput Feedforward Control1% Internal 0.85-V ReferenceRDS(on)Overcurrent Detection (4200 ppm/°C)Integrated OVP, UVP and Power Good Timers30-pin TSSOP PackageAPPLICATIONSNotebook Computers System Bus and I/ODDR I or DDR II TerminationWide Input Voltage Range: 4.5-V to 28-VSelectable Dual and DDR ModesSelectable Fixed Frequency Voltage ModeAdvanced Power Good Logic Monitors both ChannelsSelectable Autoskip ModeIntegrated Boot Strap Diodes180° Phase Shift Between ChannelsIntegrated 5-V, 60-mA RegulatorInput Feedforward Control1% Internal 0.85-V ReferenceRDS(on)Overcurrent Detection (4200 ppm/°C)Integrated OVP, UVP and Power Good Timers30-pin TSSOP PackageAPPLICATIONSNotebook Computers System Bus and I/ODDR I or DDR II Termination

Description

The TPS51020 is a multi-function dual-synchronous step-down controller for notebook system power. The part is specifically designed for high performance, high efficiency applications where the loss associated with a current sense resistor is unacceptable. The TPS51020 utilizes feed forward voltage mode control to attain high efficiency without sacrificing line response. Efficiency at light load conditions can be maintained high as well by incorporating autoskip operation. A selectable, Suspend to RAM (STR) supported, DDR option provides a one chip solution for all switching applications from 5-V/3.3-V supply to a complete DDR termination solution. The TPS51020 is a multi-function dual-synchronous step-down controller for notebook system power. The part is specifically designed for high performance, high efficiency applications where the loss associated with a current sense resistor is unacceptable. The TPS51020 utilizes feed forward voltage mode control to attain high efficiency without sacrificing line response. Efficiency at light load conditions can be maintained high as well by incorporating autoskip operation. A selectable, Suspend to RAM (STR) supported, DDR option provides a one chip solution for all switching applications from 5-V/3.3-V supply to a complete DDR termination solution.