Home Power management DC/DC switching regulators DC/DC converters
Home
Power management
DC/DC switching regulators
DC/DC converters

TPS51396A

ACTIVE

4.5-V to 24-V, 8-A synchronous step-down voltage regulator

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A newer version of this product is available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
TPS51386 ACTIVE 4.5-V to 24-V input, 8-A synchronous buck converter  Higher efficiency and lower IQ in a smaller package

TPS51396A

ACTIVE
Data sheet Order now

Product details

Rating Catalog Topology Buck Iout (max) (A) 8 Vin (max) (V) 24 Vin (min) (V) 4.5 Vout (max) (V) 7 Vout (min) (V) 0.6 Features Adjustable soft start, Enable, Light-load efficiency, Output discharge, Overcurrent protection, Power good, Synchronous rectification Control mode D-CAP3 Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00009 Duty cycle (max) (%) 88.6
Rating Catalog Topology Buck Iout (max) (A) 8 Vin (max) (V) 24 Vin (min) (V) 4.5 Vout (max) (V) 7 Vout (min) (V) 0.6 Features Adjustable soft start, Enable, Light-load efficiency, Output discharge, Overcurrent protection, Power good, Synchronous rectification Control mode D-CAP3 Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.00009 Duty cycle (max) (%) 88.6
VQFN-HR (RJE) 20 9 mm² 3 x 3
  • Input voltage range: 4.5 V to 24 V
  • D-CAP3™ architecture control for fast transient response
  • Output voltage range: 0.6 V to 7 V
  • 1% feedback voltage accuracy (25°C)
  • Continual output current: 8 A
  • Integrated 19.5-mΩ and 9.5-mΩ RDS(on) internal power switch
  • ULQ™ operation to enable long battery life during system standby
  • Eco-Mode™ and OOA mode selectable for light load running by MODE pin
  • 600-kHz, 800-kHz and 1-MHz selectable switching frequency by MODE pin
  • Out-of-Audio (OOA) light- load operation with switching frequency over 25 kHz
  • Large duty operation support
  • Adjustable soft-start time by SS pin
  • Power good indicator
  • Built-in output discharge function
  • Cycle-by-cycle over current protection
  • Latched output for OV and UV protections
  • Non-latched for OT and UVLO protections
  • 20-pin 3.0-mm × 3.0-mm HotRod™ VQFN package
  • Input voltage range: 4.5 V to 24 V
  • D-CAP3™ architecture control for fast transient response
  • Output voltage range: 0.6 V to 7 V
  • 1% feedback voltage accuracy (25°C)
  • Continual output current: 8 A
  • Integrated 19.5-mΩ and 9.5-mΩ RDS(on) internal power switch
  • ULQ™ operation to enable long battery life during system standby
  • Eco-Mode™ and OOA mode selectable for light load running by MODE pin
  • 600-kHz, 800-kHz and 1-MHz selectable switching frequency by MODE pin
  • Out-of-Audio (OOA) light- load operation with switching frequency over 25 kHz
  • Large duty operation support
  • Adjustable soft-start time by SS pin
  • Power good indicator
  • Built-in output discharge function
  • Cycle-by-cycle over current protection
  • Latched output for OV and UV protections
  • Non-latched for OT and UVLO protections
  • 20-pin 3.0-mm × 3.0-mm HotRod™ VQFN package

The TPS51396A is a cost-effective, high-voltage input, high-efficiency synchronous buck converter with integrated FETs.

The key feature of the TPS51396A is its ULQ (Ultra Low Quiescent) feature to enable low-bias current and large duty operation. The ULQ feature is extremely beneficial for long battery life in low power operation. The TPS51396A operates with a supply input voltage ranging from 4.5 V to 24 V. It uses DCAP3 control mode to provide a fast transient response, good line, load regulation, no requirement for external compensation, and supports low equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors.

The TPS51396A provides complete protection OVP, UVP, OCP, OTP, and UVLO. It is combined power good signal and output discharge function.

The MODE pin in the TPS51396A can be used to set Eco-Mode or OOA mode for light load operation. The Eco-Mode maintains high efficiency during light load operation, and OOA mode operations with switching frequency larger than 25 kHz even no loading.

The TPS51396A supports both an internal and external soft-start time option. It has the internal fixed soft-start time of 1.3 ms. If the application needs longer soft-start time, the external SS pin can be used to achieve it by connecting the external capacitor.

The TPS51396A is available in a 20-pin 3.0-mm × 3.0-mm HotRod package and the junction temperature is specified from –40°C to 125°C.

The TPS51396A is a cost-effective, high-voltage input, high-efficiency synchronous buck converter with integrated FETs.

The key feature of the TPS51396A is its ULQ (Ultra Low Quiescent) feature to enable low-bias current and large duty operation. The ULQ feature is extremely beneficial for long battery life in low power operation. The TPS51396A operates with a supply input voltage ranging from 4.5 V to 24 V. It uses DCAP3 control mode to provide a fast transient response, good line, load regulation, no requirement for external compensation, and supports low equivalent series resistance (ESR) output capacitors such as specialty polymer and ultra-low ESR ceramic capacitors.

The TPS51396A provides complete protection OVP, UVP, OCP, OTP, and UVLO. It is combined power good signal and output discharge function.

The MODE pin in the TPS51396A can be used to set Eco-Mode or OOA mode for light load operation. The Eco-Mode maintains high efficiency during light load operation, and OOA mode operations with switching frequency larger than 25 kHz even no loading.

The TPS51396A supports both an internal and external soft-start time option. It has the internal fixed soft-start time of 1.3 ms. If the application needs longer soft-start time, the external SS pin can be used to achieve it by connecting the external capacitor.

The TPS51396A is available in a 20-pin 3.0-mm × 3.0-mm HotRod package and the junction temperature is specified from –40°C to 125°C.
filter Find other DC/DC converters
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Pin-for-pin with same functionality to the compared device
TPS51397A ACTIVE 4.5-V to 24-V input, 10-A, synchronous step-down regulator Offers higher IOUT with greater efficiency.
TPS568230 ACTIVE 4.5-V to 18-V, 8-A synchronous SWIFT™ buck converter optimized for solution cost Includes hiccup protection.
TPS56C230 ACTIVE 4.5-V to 18-V, 12-A synchronous SWIFT™ buck converter optimized for solution cost Higher current equivalent with narrower VIN.

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 2
Top documentation Type Title Format options Date
* Data sheet TPS51396A 4.5-V to 24-V, 8-A Synchronous Step-Down Voltage Regulator with ULQ™ Mode for Extended Battery Life datasheet (Rev. C) PDF | HTML 27 Mar 2021
Application note Non-Isolated Point-of-Load Solutions for Tiger Lake in PC Applications (Rev. B) PDF | HTML 29 Apr 2021

Design & development

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

Evaluation board

TPS51396AEVM — TPS51396A evaluation module 4.5-V to 24-V input, 8-A synchronous step-down converter

The TPS51396AEVM evaluation module (EVM) is used to evaluate the TPS51396A, a high-voltage input, high-efficiency synchronous buck converter with integrated FETs. The key feature of the TPS51396A is its ULQ™ (ultra low quiescent), which enables low-bias current and large duty (...)
User guide: PDF | HTML
Not available on TI.com
Simulation model

TPS51396A PSpice Transient Model

SLVMDM0.ZIP (295 KB) - PSpice Model
Download
Package Pins CAD symbols, footprints & 3D models
VQFN-HR (RJE) 20 Ultra Librarian
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