TPS51216

Name: TPS51216
Brand: TI
SKU: TPS51216
Price: 0.191 USD

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DDR2/3/3L/4 Memory Power Solution Synchronous Buck Controller, 2-A LDO, Buffered Reference

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Data sheet

document-pdfAcrobat COMPLETE DDR2, DDR3 AND DDR3L MEMORY POWER SOLUTION datasheet (Rev. A)

TPS51216

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Data sheet

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Product details

Vin (min) (V)

3

Vin (max) (V)

28

Vout (min) (V)

0.7

Vout (max) (V)

1.8

Features

Complete Solution, Eco Mode, S3/S5 Support

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Iq (typ) (mA)

0.6

Product type

DDR

DDR memory type

DDR, DDR2, DDR3, DDR3L, DDR4, LPDDR2, LPDDR3

Vin (min) (V)

3

Vin (max) (V)

28

Vout (min) (V)

0.7

Vout (max) (V)

1.8

Features

Complete Solution, Eco Mode, S3/S5 Support

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Iq (typ) (mA)

0.6

Product type

DDR

DDR memory type

DDR, DDR2, DDR3, DDR3L, DDR4, LPDDR2, LPDDR3

WQFN (RUK)

20

9 mm² 3 x 3

Synchronous Buck Controller (VDDQ)
- Conversion Voltage Range: 3 V to 28 V
- Output Voltage Range: 0.7 V to 1.8 V
- 0.8% V_REF Accuracy
- D-CAP™ Mode for Fast Transient Response
- Selectable 300 kHz/400 kHz Switching Frequencies
- Optimized Efficiency at Light and Heavy Loads with Auto-skip Function
- Supports Soft-Off in S4/S5 States
- OCL/OVP/UVP/UVLO Protections
- Powergood Output
2-A LDO(VTT), Buffered Reference(VTTREF)
- 2-A (Peak) Sink and Source Current
- Requires Only 10-μF of Ceramic Output Capacitance
- Buffered, Low Noise, 10-mA VTTREF Output
- 0.8% VTTREF, 20-mV VTT Accuracy
- Support High-Z in S3 and Soft-Off in S4/S5
Thermal Shutdown
20-Pin, 3 mm × 3 mm, QFN Package
APPLICATIONS
- DDR2/DDR3/DDR3L Memory Power Supplies
- SSTL_18, SSTL_15, SSTL_135 and HSTL Termination

Synchronous Buck Controller (VDDQ)
- Conversion Voltage Range: 3 V to 28 V
- Output Voltage Range: 0.7 V to 1.8 V
- 0.8% V_REF Accuracy
- D-CAP™ Mode for Fast Transient Response
- Selectable 300 kHz/400 kHz Switching Frequencies
- Optimized Efficiency at Light and Heavy Loads with Auto-skip Function
- Supports Soft-Off in S4/S5 States
- OCL/OVP/UVP/UVLO Protections
- Powergood Output
2-A LDO(VTT), Buffered Reference(VTTREF)
- 2-A (Peak) Sink and Source Current
- Requires Only 10-μF of Ceramic Output Capacitance
- Buffered, Low Noise, 10-mA VTTREF Output
- 0.8% VTTREF, 20-mV VTT Accuracy
- Support High-Z in S3 and Soft-Off in S4/S5
Thermal Shutdown
20-Pin, 3 mm × 3 mm, QFN Package
APPLICATIONS
- DDR2/DDR3/DDR3L Memory Power Supplies
- SSTL_18, SSTL_15, SSTL_135 and HSTL Termination

The TPS51216 provides a complete power supply for DDR2, DDR3 and DDR3L memory systems in the lowest total cost and minimum space. It integrates a synchronous buck regulator controller (VDDQ) with a 2-A sink/source tracking LDO (VTT) and buffered low noise reference (VTTREF). The TPS51216 employs D-CAP™ mode coupled with 300 kHz/400 kHz frequencies for ease-of-use and fast transient response. The VTTREF tracks VDDQ/2 within excellent 0.8% accuracy. The VTT, which provides 2-A sink/source peak current capabilities, requires only 10-μF of ceramic capacitance. In addition, a dedicated LDO supply input is available.

The TPS51216 provides rich useful functions as well as excellent power supply performance. It supports flexible power state control, placing VTT at high-Z in S3 and discharging VDDQ, VTT and VTTREF (soft-off) in S4/S5 state. Programmable OCL with low-side MOSFET R_DS(on) sensing, OVP/UVP/UVLO and thermal shutdown protections are also available.

The TPS51216 is available in a 20-pin, 3 mm × 3 mm, QFN package and is specified for ambient temperature from –40°C to 85°C.

The TPS51216 provides a complete power supply for DDR2, DDR3 and DDR3L memory systems in the lowest total cost and minimum space. It integrates a synchronous buck regulator controller (VDDQ) with a 2-A sink/source tracking LDO (VTT) and buffered low noise reference (VTTREF). The TPS51216 employs D-CAP™ mode coupled with 300 kHz/400 kHz frequencies for ease-of-use and fast transient response. The VTTREF tracks VDDQ/2 within excellent 0.8% accuracy. The VTT, which provides 2-A sink/source peak current capabilities, requires only 10-μF of ceramic capacitance. In addition, a dedicated LDO supply input is available.

The TPS51216 provides rich useful functions as well as excellent power supply performance. It supports flexible power state control, placing VTT at high-Z in S3 and discharging VDDQ, VTT and VTTREF (soft-off) in S4/S5 state. Programmable OCL with low-side MOSFET R_DS(on) sensing, OVP/UVP/UVLO and thermal shutdown protections are also available.

The TPS51216 is available in a 20-pin, 3 mm × 3 mm, QFN package and is specified for ambient temperature from –40°C to 85°C.

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	Type	Title	Date
*	Data sheet	COMPLETE DDR2, DDR3 AND DDR3L MEMORY POWER SOLUTION datasheet (Rev. A)	04 Apr 2013
	Selection guide	Power Management Guide 2018 (Rev. R)	25 Jun 2018
	More literature	Computing DDR DC-DC Power Solutions	22 Aug 2012