Home Power management DDR memory power ICs
Home
Power management
DDR memory power ICs

TPS51020

ACTIVE

Dual, DDR selectable, Synchronous buck controller

Order now
Data sheet

A newer version of this product is available

open-in-new Compare alternates
Same functionality with different pin-out to the compared device
TPS548A28 ACTIVE 2.7-V to 16-V, 15-A synchronous buck converter with remote sense and 3-V LDO Upgraded converter with an extended positive operating temperature range in a smaller package.

TPS51020

ACTIVE
Data sheet Order now

Product details

DDR memory type DDR, DDR2 Control mode Voltage mode Iout VDDQ (max) (A) 15 Iout VTT (max) (A) 15 Iq (typ) (mA) 1.4 Output VDDQ, VREF, VTT Vin (min) (V) 4.5 Vin (max) (V) 28 Features Complete Solution, Shutdown Pin for S3 Rating Catalog Operating temperature range (°C) -40 to 85 Regulator type Dual Step-Down Controller Vin bias (max) (V) 28 Vin bias (min) (V) 4.5 Vout VTT (min) (V) 0.9
DDR memory type DDR, DDR2 Control mode Voltage mode Iout VDDQ (max) (A) 15 Iout VTT (max) (A) 15 Iq (typ) (mA) 1.4 Output VDDQ, VREF, VTT Vin (min) (V) 4.5 Vin (max) (V) 28 Features Complete Solution, Shutdown Pin for S3 Rating Catalog Operating temperature range (°C) -40 to 85 Regulator type Dual Step-Down Controller Vin bias (max) (V) 28 Vin bias (min) (V) 4.5 Vout VTT (min) (V) 0.9
TSSOP (DBT) 30 49.92 mm² 7.8 x 6.4
  • Wide Input Voltage Range: 4.5-V to 28-V
  • Selectable Dual and DDR Modes
  • Selectable Fixed Frequency Voltage Mode
  • Advanced Power Good Logic Monitors both Channels
  • Selectable Autoskip Mode
  • Integrated Boot Strap Diodes
  • 180° Phase Shift Between Channels
  • Integrated 5-V, 60-mA Regulator
  • Input Feedforward Control
  • 1% Internal 0.85-V Reference
  • RDS(on) Overcurrent Detection (4200 ppm/°C)
  • Integrated OVP, UVP and Power Good Timers
  • 30-pin TSSOP Package
  • APPLICATIONS
    • Notebook Computers System Bus and I/O
    • DDR I or DDR II Termination
  • Wide Input Voltage Range: 4.5-V to 28-V
  • Selectable Dual and DDR Modes
  • Selectable Fixed Frequency Voltage Mode
  • Advanced Power Good Logic Monitors both Channels
  • Selectable Autoskip Mode
  • Integrated Boot Strap Diodes
  • 180° Phase Shift Between Channels
  • Integrated 5-V, 60-mA Regulator
  • Input Feedforward Control
  • 1% Internal 0.85-V Reference
  • RDS(on) Overcurrent Detection (4200 ppm/°C)
  • Integrated OVP, UVP and Power Good Timers
  • 30-pin TSSOP Package
  • APPLICATIONS
    • Notebook Computers System Bus and I/O
    • DDR I or DDR II Termination

The TPS51020 is a multi-function dual-synchronous step-down controller for notebook system power. The part is specifically designed for high performance, high efficiency applications where the loss associated with a current sense resistor is unacceptable. The TPS51020 utilizes feed forward voltage mode control to attain high efficiency without sacrificing line response. Efficiency at light load conditions can be maintained high as well by incorporating autoskip operation. A selectable, Suspend to RAM (STR) supported, DDR option provides a one chip solution for all switching applications from 5-V/3.3-V supply to a complete DDR termination solution.

The TPS51020 is a multi-function dual-synchronous step-down controller for notebook system power. The part is specifically designed for high performance, high efficiency applications where the loss associated with a current sense resistor is unacceptable. The TPS51020 utilizes feed forward voltage mode control to attain high efficiency without sacrificing line response. Efficiency at light load conditions can be maintained high as well by incorporating autoskip operation. A selectable, Suspend to RAM (STR) supported, DDR option provides a one chip solution for all switching applications from 5-V/3.3-V supply to a complete DDR termination solution.
open-in-new Find other DDR memory power ICs
Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 3
Type Title Date
* Data sheet Dual, Voltage Mode, DDR Selectable, datasheet (Rev. C) 03 Oct 2008
User guide TPS51020 Buck Controller Evaluation Module User's Guide (Rev. A) PDF | HTML 11 Mar 2022
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018

Design & development

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

Evaluation board

TPS51020EVM-001 — TPS51020EVM Evaluation Module

The TPS51020 is a multi-function dual-synchronous step-down controller. The part is specifically designed for high performance, high-efficiency applications where the loss associated with a current sense resistor is unacceptable. The TPS51020 uses feed-forward voltage mode control to improve the (...)

User guide: PDF | HTML
Not available on TI.com
Evaluation board

TPS51116EVM-001 — TPS51116 Memory Power Solution, Synchronous Buck Controller Evaluation Module

The TPS51116EVM evaluation module (EVM) is a dual-output converter for DDR and DDRII memory modules. It uses a 10 A synchronous buck converter to provide the core voltage (VDDQ) for DDR memory modules. The EVM is designed to use a 4.5 V to 28 V supply voltage and a 4.75 V to (...)

User guide: PDF
Not available on TI.com
Package Pins Download
TSSOP (DBT) 30 View options
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos