TPS51211

ACTIVE

4.5-V to 28-V, synchronous buck controller for notebook power

Product details

Vin (min) (V) 3 Vin (max) (V) 28 Iout (max) (A) 18 Operating temperature range (°C) -40 to 85 Control mode D-CAP Rating Catalog Vout (min) (V) 0.7 Vout (max) (V) 2.6 Iq (typ) (A) 0.0003 Duty cycle (max) (%) 90
Vin (min) (V) 3 Vin (max) (V) 28 Iout (max) (A) 18 Operating temperature range (°C) -40 to 85 Control mode D-CAP Rating Catalog Vout (min) (V) 0.7 Vout (max) (V) 2.6 Iq (typ) (A) 0.0003 Duty cycle (max) (%) 90
WSON (DSC) 10 9 mm² 3 x 3
  • Wide Input Voltage Range: 3 V to 28 V
  • Output Voltage Range: 0.7 V to 2.6 V
  • Wide Output Load Range: 0 to 20 A+
  • Built-In 0.5% 0.7 V Reference
  • 290-kHz, Adaptive On-Time D-CAP™ MODE Control
  • 4700 ppm/°C RDS(on) Current Sensing
  • Internal 1-ms Voltage Servo Soft-Start
  • Pre-Charged Start-Up Capability
  • Built-In Output Discharge
  • Power Good Output
  • Integrated Boost Switch
  • Built-In OVP/UVP/OCP
  • Thermal Shutdown (Non-latch)
  • SON-10 (DSC) Package
  • Wide Input Voltage Range: 3 V to 28 V
  • Output Voltage Range: 0.7 V to 2.6 V
  • Wide Output Load Range: 0 to 20 A+
  • Built-In 0.5% 0.7 V Reference
  • 290-kHz, Adaptive On-Time D-CAP™ MODE Control
  • 4700 ppm/°C RDS(on) Current Sensing
  • Internal 1-ms Voltage Servo Soft-Start
  • Pre-Charged Start-Up Capability
  • Built-In Output Discharge
  • Power Good Output
  • Integrated Boost Switch
  • Built-In OVP/UVP/OCP
  • Thermal Shutdown (Non-latch)
  • SON-10 (DSC) Package

The TPS51211 is a small-sized single buck controller with adaptive on-time D-CAP™ Mode. The device is suitable for low output voltage, high current, PC system power rail and similar point-of-load (POL) power supply in digital consumer products. A small package with minimal pin-count saves space on the PCB, while a dedicated EN pin and pre-set frequency minimize design effort required for new designs. The skip-mode at light load condition, strong gate drivers and low-side FET RDS(on) current sensing supports low-loss and high efficiency, over a broad load range. The conversion input voltage which is the high-side FET drain voltage ranges from 3 V to 28 V and the output voltage ranges from 0.7 V to 2.6 V. The device requires an external 5-V supply. The TPS51211 is available in a 10-pin SON package specified from –40°C to 85°C.

The TPS51211 is a small-sized single buck controller with adaptive on-time D-CAP™ Mode. The device is suitable for low output voltage, high current, PC system power rail and similar point-of-load (POL) power supply in digital consumer products. A small package with minimal pin-count saves space on the PCB, while a dedicated EN pin and pre-set frequency minimize design effort required for new designs. The skip-mode at light load condition, strong gate drivers and low-side FET RDS(on) current sensing supports low-loss and high efficiency, over a broad load range. The conversion input voltage which is the high-side FET drain voltage ranges from 3 V to 28 V and the output voltage ranges from 0.7 V to 2.6 V. The device requires an external 5-V supply. The TPS51211 is available in a 10-pin SON package specified from –40°C to 85°C.

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 1
Type Title Date
* Data sheet High-Performance, Single Synchronous Step-Down Controller datasheet (Rev. B) 14 May 2013

Design & development

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

Simulation model

TPS51211 TINA-TI Transient Reference Design

SLUM241.TSC (203 KB) - TINA-TI Reference Design
Simulation model

TPS51211 TINA-TI Transient Spice Model

SLUM242.ZIP (39 KB) - TINA-TI Spice Model
Simulation model

TPS51211 Unencrypted PSpice Transient Model Package (Rev. A)

SLUM142A.ZIP (47 KB) - PSpice Model
Package Pins Download
WSON (DSC) 10 View options

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

Support & training

TI E2E™ forums with technical support from TI engineers

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