TPS59116 Series

Complete DDR, DDR2, and DDR3 Memory Power Solution, Sync Buck Controller for Embedded Computing

Catalog

Complete DDR, DDR2, and DDR3 Memory Power Solution, Sync Buck Controller for Embedded Computing

Part	Voltage - Output [Max]	Voltage - Output [Min]	Applications	Voltage - Input [Max]	Voltage - Input [Min]	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Package / Case	Number of Outputs
Texas Instruments TPS59116RGET	5.5 V	0.76 V	Controller DDR	28 V	3 V	24-VQFN (4x4)	85 °C	-40 °C	Surface Mount	24-VFQFN Exposed Pad	2
Texas Instruments TPS59116RGER	5.5 V	0.76 V	Controller DDR	28 V	3 V	24-VQFN (4x4)	85 °C	-40 °C	Surface Mount	24-VFQFN Exposed Pad	2

Catalog

Complete DDR, DDR2, and DDR3 Memory Power Solution, Sync Buck Controller for Embedded Computing

Key Features

• Synchronous Buck Controller (VDDQ)Wide-Input Voltage Range: 3.0-V to 28-VD-CAP™ Mode with 100-ns Load Step ResponseCurrent Mode Option Supports Ceramic Output CapacitorsSupports Soft-Off in S4/S5 StatesCurrent Sensing from RDS(on)or Resistor2.5-V (DDR), 1.8-V (DDR2), Adjustable to 1.5-V (DDR3) orOutput Range 0.75-V to 3.0-VEquipped with Powergood, Overvoltage Protection andUndervoltage Protection3-A LDO (VTT), Buffered Reference (VREF)Capable to Sink and Source 3 ALDO Input Available to Optimize Power LossesRequires Small 20-µF Ceramic Output CapacitorBuffered Low Noise 10-mA VREF OutputAccuracy ±20 mV for both VREF and VTTSupports High-Z in S3 and Soft-Off in S4/S5Thermal ShutdownAPPLICATIONSDDR/DDR2/DDR3/LPDDR3 Memory PowerSupplies in Embedded Computing SystemSSTL-2 SSTL-18 and HSTL TerminationD-CAP, PowerPAD are trademarks of Texas Instruments.Synchronous Buck Controller (VDDQ)Wide-Input Voltage Range: 3.0-V to 28-VD-CAP™ Mode with 100-ns Load Step ResponseCurrent Mode Option Supports Ceramic Output CapacitorsSupports Soft-Off in S4/S5 StatesCurrent Sensing from RDS(on)or Resistor2.5-V (DDR), 1.8-V (DDR2), Adjustable to 1.5-V (DDR3) orOutput Range 0.75-V to 3.0-VEquipped with Powergood, Overvoltage Protection andUndervoltage Protection3-A LDO (VTT), Buffered Reference (VREF)Capable to Sink and Source 3 ALDO Input Available to Optimize Power LossesRequires Small 20-µF Ceramic Output CapacitorBuffered Low Noise 10-mA VREF OutputAccuracy ±20 mV for both VREF and VTTSupports High-Z in S3 and Soft-Off in S4/S5Thermal ShutdownAPPLICATIONSDDR/DDR2/DDR3/LPDDR3 Memory PowerSupplies in Embedded Computing SystemSSTL-2 SSTL-18 and HSTL TerminationD-CAP, PowerPAD are trademarks of Texas Instruments.

Description

The TPS59116 provides a complete power supply for DDR/SSTL-2, DDR2/SSTL-18, and DDR3 memory systems. It integrates a synchronous buck controller with a 3-A sink/source tracking linear regulator and buffered low noise reference. The TPS59116 offers the lowest total solution cost in systems where space is at a premium. The TPS59116 synchronous controller runs fixed 400-kHz pseudo-constant frequency PWM with an adaptive on-time control that can be configured in D-CAP™ Mode for ease of use and fastest transient response or in current mode to support ceramic output capacitors. The 3-A sink/source LDO maintains fast transient response only requiring 20-µF (2 × 10 µF) of ceramic output capacitance. In addition, the LDO supply input is available externally to significantly reduce the total power losses. The TPS59116 supports all of the sleep state controls placing VTT at high-Z in S3 (suspend to RAM) and discharging VDDQ, VTT and VTTREF (soft-off) in S4/S5 (suspend to disk). TPS59116 has all of the protection features including thermal shutdown and is offered in both a 20-pin HTSSOP PowerPAD™ package and 24-pin 4×4 QFN. The TPS59116 provides a complete power supply for DDR/SSTL-2, DDR2/SSTL-18, and DDR3 memory systems. It integrates a synchronous buck controller with a 3-A sink/source tracking linear regulator and buffered low noise reference. The TPS59116 offers the lowest total solution cost in systems where space is at a premium. The TPS59116 synchronous controller runs fixed 400-kHz pseudo-constant frequency PWM with an adaptive on-time control that can be configured in D-CAP™ Mode for ease of use and fastest transient response or in current mode to support ceramic output capacitors. The 3-A sink/source LDO maintains fast transient response only requiring 20-µF (2 × 10 µF) of ceramic output capacitance. In addition, the LDO supply input is available externally to significantly reduce the total power losses. The TPS59116 supports all of the sleep state controls placing VTT at high-Z in S3 (suspend to RAM) and discharging VDDQ, VTT and VTTREF (soft-off) in S4/S5 (suspend to disk). TPS59116 has all of the protection features including thermal shutdown and is offered in both a 20-pin HTSSOP PowerPAD™ package and 24-pin 4×4 QFN.