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Product details

Parameters

DDR memory type DDR, DDR2, DDR3, DDR3L, DDR4, LPDDR2, LPDDR3 Control mode D-CAP, S4/S5 Iout VDDQ (Max) (A) 20 Iout VTT (Max) (A) 2 Iq (Typ) (mA) 0.6 Output VDDQ, VREF, VTT Vin (Min) (V) 3 Vin (Max) (V) 28 Features Complete Solution, Eco Mode, S3/S5 Support Rating Catalog Operating temperature range (C) -40 to 85 open-in-new Find other DDR memory power ICs

Package | Pins | Size

WQFN (RUK) 20 9 mm² 3 x 3 open-in-new Find other DDR memory power ICs

Features

  • Synchronous Buck Controller (VDDQ)
    • Conversion Voltage Range: 3 V to 28 V
    • Output Voltage Range: 0.7 V to 1.8 V
    • 0.8% VREF 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

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Description

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 RDS(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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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 4
Type Title Date
* Datasheet COMPLETE DDR2, DDR3 AND DDR3L MEMORY POWER SOLUTION datasheet (Rev. A) Apr. 04, 2013
Selection guide Power Management Guide 2018 (Rev. R) Jun. 25, 2018
Technical articles Power Tips - DDR memory is everywhere! Mar. 01, 2014
More literature Computing DDR DC-DC Power Solutions Aug. 22, 2012

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
Description

The TMS320DM8127 Camera Starter Kit (CSK) enables developers to begin designing wireless or wired connected digital video applications, such as security cameras, car DVRs, action-wearable cameras, drones, video conferencing, digital signage, stereo camera and other connected video products. The (...)

Features
  • TMDSCSK8127: 60-mm x 44-mm TMS320DM8127 processor board
  • TMDSCSKCC: 90-mm x 90-mm I/O common carrier board
  • Integrated WiLink 8 single-band combo 2 x 2 MIMO WiFi, Bluetooth, and Bluetooth Smart (low energy) module
  • IPNC SDK with Linux 4.4 LTS kernel preloaded on included SD card enables fast application (...)

Design tools & simulation

SIMULATION MODEL Download
SLUM395.ZIP (67 KB) - PSpice Model
SIMULATION MODEL Download
SLUM459.TSC (648 KB) - TINA-TI Reference Design

Reference designs

REFERENCE DESIGNS Download
Synchronous Buck for Intel Core i3, i5, i7 Arrandale SV (1.8V @ 1A)
PMP5783 — PMP5783 is a complete Intel IMVP6.5 Arrandale SV/Clarksfield SV Power Reference Design. Vin is 8-15V. Main CPU is powered by two phase TPS59621. TPS59611 powers graphics processor. DDR3 memory powered by TPS5126. Both 1.05V’s are each powered by TPS51218. Dual TPS51125A powers 5V and 3.3V (...)
REFERENCE DESIGNS Download
3 - 4.2Vin, 1.35Vout @ 4A, DDR3 LV using the TPS51216
PMP6807 The PMP6807 reference design uses the TPS51216 to generate a low voltage DRR3 power supply. The VDDQ supply is 1.35V and capable of 4A. The VTT supply is generated using a source/sink LDO that is capable of 0.5A. The design also takes advantage of high performance compact MOSFETs (CSD17313Q2) to (...)

CAD/CAE symbols

Package Pins Download
WQFN (RUK) 20 View options

Ordering & quality

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