TPS51916 DDR2/3/3L/4 Memory Power Solution Synchronous Buck Controller | TI.com

TPS51916 (ACTIVE) DDR2/3/3L/4 Memory Power Solution Synchronous Buck Controller

 

Description

The TPS51916 device provides a complete power supply for DDR2, DDR3, DDR3L, and DDR4 memory systems in the lowest total cost and minimum space. It integrates a synchronous buck regulator controller (VDDQ) with a 2-A sink and 2-A source tracking LDO (VTT) and buffered low noise reference (VTTREF).

The device employs D-CAP™ mode coupled with 300 kHz or 400 kHz frequencies for ease-of-use and fast transient response or D-CAP2™ mode coupled with higher 500 kHz or 670 kHz frequencies to support ceramic output capacitor without an external compensation circuit. The VTTREF tracks VDDQ/2 within excellent 0.8% accuracy. The VTT, which provides 2-A sink and 2-A source peak current capabilities, requires only 10-µF of ceramic capacitance. A dedicated LDO supply input is available.

The device also provides 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 or S5 state. Programmable OCL with low-side MOSFET RDS(on) sensing, OVP, UVP, UVLO and thermal shutdown protections are also available.

.

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
    • Selectable Control Architecture
      • D-CAP™ Mode for Fast Transient Response
      • D-CAP2™ Mode for Ceramic Output Capacitors
    • Selectable 300 kHz, 400 kHz, 500 kHz, or 670 kHz Switching Frequencies
    • Optimized Efficiency at Light and Heavy Loads with Auto-skip Function
    • Supports Soft-Off in S4 and S5 States
    • OCL/OVP/UVP/UVLO Protections
    • Powergood Output
  • 2-A LDO(VTT), Buffered Reference(VTTREF)
    • 2-A (Peak) Sink and Source Current
    • Buffered, Low Noise, 10-mA VTTREF Output
    • 0.8% VTTREF, 20-mV VTT Accuracy
    • Supports High-Z (S3) and Soft-Off (S4, S5)
  • Thermal Shutdown
  • 20-Pin, 3 mm × 3 mm, QFN Package
  • Create a WEBENCH Design

All trademarks are the property of their respective owners.

WEBENCH® TPS51916
    Min   Max   Range  
  Ambient Temp °C    ≤ 100°C  
Footprint BOM Cost Efficiency
 
 
 
'Cvdd Cldo12 Rp L1_ch1 Cin_ch1 Rfbb_ch1 Rfbt_ch1 C1_ch1 Cout_ch1 L1_ch2 Cin_ch2 Rfbb_ch2 Rfbt_ch2 C1_ch2 Cout_ch2 Cin_ch3 Cout_ch3 Rfbt_ch3 Rfbb_ch3 Cin_ch4 Cout_ch4 Rfbt_ch4 Rfbb_ch4'
 
What are WEBENCH Tools?

Parametrics

Compare all products in DDR memory Email Download to Excel
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)
TPS51916 Order now DDR
DDR2
DDR3
DDR3L
DDR4
LPDDR2
LPDDR3    
D-CAP
D-CAP2
S3
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)    
TPS51116 Order now DDR
DDR2
DDR3
DDR3L
DDR4
LPDDR2
LPDDR3    
Current Mode
D-CAP    
25     3     0.8     VDDQ
VREF
VTT    
3     28     Complete Solution
Shutdown Pin for S3    
Catalog     -40 to 85     HTSSOP | 20
VQFN | 24    
20HTSSOP: 42 mm2: 6.4 x 6.5 (HTSSOP | 20)
24VQFN: 16 mm2: 4 x 4 (VQFN | 24)    
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)    
TPS51716 Order now DDR
DDR2
DDR3
DDR3L
DDR4
LPDDR2
LPDDR3    
D-CAP2
S3
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)    
TPS59116 Order now DDR
DDR2
DDR3
DDR3L
DDR4
LPDDR2
LPDDR3    
Current Mode
D-CAP    
25     3     0.8     VDDQ
VREF
VTT    
3     28     Status Pin     Catalog     -40 to 85     VQFN | 24     24VQFN: 16 mm2: 4 x 4 (VQFN | 24)