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TPS513885

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5.5V to 24V input, 12A synchronous buck converter with fixed 5.15V output

Product details

Rating Catalog Operating temperature range (°C) -40 to 125 Type Converter Iout (max) (A) 12 Vin (min) (V) 5.5 Vin (max) (V) 24 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 1000 Features Enable, Fixed Output, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, UVLO Fixed Control mode D-CAP3 Vout (min) (V) 5.15 Vout (max) (V) 5.15 Iq (typ) (µA) 90 Duty cycle (max) (%) 98
Rating Catalog Operating temperature range (°C) -40 to 125 Type Converter Iout (max) (A) 12 Vin (min) (V) 5.5 Vin (max) (V) 24 Switching frequency (min) (kHz) 600 Switching frequency (max) (kHz) 1000 Features Enable, Fixed Output, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Fixed, UVLO Fixed Control mode D-CAP3 Vout (min) (V) 5.15 Vout (max) (V) 5.15 Iq (typ) (µA) 90 Duty cycle (max) (%) 98
VQFN-HR (VAB) 13 12 mm² 4 x 3
  • 5.5V to 24V input voltage range
  • 5.15V output voltage
  • Integrated 9.2mΩ and 4.5mΩ FETs
  • Supports 12A continuous output current
  • 90uA low quiescent current
  • ± 1.0% ouput voltage accuracy (25°C)
  • D-CAP3™ control mode architecture control for fast transient response
  • Support POSCAP and all MLCC output capacitor
  • Selectable Eco-mode and Out-of-Audio™ mode with dynamic change
  • ULQ™ extended battery life during system standby
  • Built-in output discharge function
  • Integrated power-good indicator
  • 560kHz and 920kHz selectable switching frequency
  • Fixed 0.9ms soft-start time
  • Large duty cycle operation
  • Cycle-by-cycle overcurrent and negative overcurrent protection
  • Latched output OV and UV protections
  • Non-latched UVLO and OT protections
  • –40°C to 125°C operating junction temperature
  • 13-pin 3.0mm × 4.0mm HotRod™ VQFN package
  • Create a custom design using the TPS513885 with the WEBENCH® Power Designer
  • 5.5V to 24V input voltage range
  • 5.15V output voltage
  • Integrated 9.2mΩ and 4.5mΩ FETs
  • Supports 12A continuous output current
  • 90uA low quiescent current
  • ± 1.0% ouput voltage accuracy (25°C)
  • D-CAP3™ control mode architecture control for fast transient response
  • Support POSCAP and all MLCC output capacitor
  • Selectable Eco-mode and Out-of-Audio™ mode with dynamic change
  • ULQ™ extended battery life during system standby
  • Built-in output discharge function
  • Integrated power-good indicator
  • 560kHz and 920kHz selectable switching frequency
  • Fixed 0.9ms soft-start time
  • Large duty cycle operation
  • Cycle-by-cycle overcurrent and negative overcurrent protection
  • Latched output OV and UV protections
  • Non-latched UVLO and OT protections
  • –40°C to 125°C operating junction temperature
  • 13-pin 3.0mm × 4.0mm HotRod™ VQFN package
  • Create a custom design using the TPS513885 with the WEBENCH® Power Designer

The device is a monolithic, 12A, synchronous buck converter with integrated MOSFETs that enable high efficiency and offer ease-of-use with minimum external component count for space-conscious power systems.

The TPS513885 employs D-CAP3 control mode that provides fast transient response and excellent line and load regulation with internal compensation. The ULQ extended battery life feature is extremely beneficial for long battery life in low power operation. The large duty operation greatly improves the load transient performance when input voltage is low.

The EN pin can be used to set Eco-mode or Out-of-Audio (OOA) mode for light-load operation. The Eco-mode maintains high efficiency during light load operation. The OOA mode keeps the switching frequency above audible frequency with minimum reduction in efficiency. The EN pin can be toggled dynamically, even when the converter is in operation.

The TPS513885 integrates a power-good indicator and provides an output discharge function. The TPS513885 provides complete protection including OVP, UVP, OCP, OTP, and UVLO. The device is available in a 13-pin, 3.0mm × 4.0mm HotRod package, and the junction temperature is specified from –40°C to 125°C.

The device is a monolithic, 12A, synchronous buck converter with integrated MOSFETs that enable high efficiency and offer ease-of-use with minimum external component count for space-conscious power systems.

The TPS513885 employs D-CAP3 control mode that provides fast transient response and excellent line and load regulation with internal compensation. The ULQ extended battery life feature is extremely beneficial for long battery life in low power operation. The large duty operation greatly improves the load transient performance when input voltage is low.

The EN pin can be used to set Eco-mode or Out-of-Audio (OOA) mode for light-load operation. The Eco-mode maintains high efficiency during light load operation. The OOA mode keeps the switching frequency above audible frequency with minimum reduction in efficiency. The EN pin can be toggled dynamically, even when the converter is in operation.

The TPS513885 integrates a power-good indicator and provides an output discharge function. The TPS513885 provides complete protection including OVP, UVP, OCP, OTP, and UVLO. The device is available in a 13-pin, 3.0mm × 4.0mm HotRod package, and the junction temperature is specified from –40°C to 125°C.

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Technical documentation

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* Data sheet TPS513885 5.5V to 24V, 12A, Synchronous Buck Converter datasheet PDF | HTML 14 May 2024
Certificate TPS513885EVM EU Declaration of Conformity (DoC) 24 Apr 2024

Design & development

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

Evaluation board

TPS513885EVM — TPS513885 evaluation module

The TPS513885 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS513885 step-down converter. This EVM operates typical 19.5V input and provides a 5.15V output at 12A. It also includes AC signal injection terminals for feedback loop measurements.
User guide: PDF | HTML
Not available on TI.com
Package Pins CAD symbols, footprints & 3D models
VQFN-HR (VAB) 13 Ultra Librarian

Ordering & quality

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