TPS51216-EP Enhanced Product Complete DDR2, DDR3 and DDR3L Memory Power Solution Synchronous Buck Controller | TI.com

TPS51216-EP (ACTIVE)

Enhanced Product Complete DDR2, DDR3 and DDR3L Memory Power Solution Synchronous Buck Controller

 

Description

The TPS51216-EP 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-EP 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-EP 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-EP is available in a 20-pin, 3 mm × 3 mm, WQFN package and is specified for junction temperature from -55°C to 125°C.

Features

  • Synchronous Buck Controller (VDDQ)
    • Conversion Voltage Range: 3 to 28 V
    • Output Voltage Range: 0.7 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, WQFN Package
  • Supports Defense, Aerospace, and Medical Applications
    • Controlled Baseline
    • One Assembly/Test Site
    • One Fabrication Site
    • Available in Military (-55°C to 125°C) Temperature Range(1)
    • Extended Product Life Cycle
    • Extended Product-Change Notification
    • Product Traceability

Parametrics

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Part number Order DDR memory type Control mode Iout VDDQ (Max) (A) Iout VTT (Max) (A) Iq (Typ) (mA) Output Vin (Min) (V) Vin (Max) (V) Features Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG)
TPS51216-EP Order now DDR
DDR2
DDR3
DDR3L
LPDDR2
LPDDR3    
D-CAP
S4/S5    
20     2     0.6     VDDQ
VREF
VTT    
3     28     Shutdown Pin for S3     HiRel Enhanced Product     -55 to 125     WQFN | 20     20WQFN: 9 mm2: 3 x 3 (WQFN | 20)    
TPS51216 Order now DDR
DDR2
DDR3
DDR3L
DDR4
LPDDR2
LPDDR3    
D-CAP
S4/S5    
20     2     0.6     VDDQ
VREF
VTT    
3     28     Complete Solution
Eco Mode
S3/S5 Support    
Catalog     -40 to 85     WQFN | 20     20WQFN: 9 mm2: 3 x 3 (WQFN | 20)