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TI TPS51397ARJER

Manufacturer
TI
MPN
TPS51397ARJER
LCSC Part #
C1518754
Packaging
QFN-20-EP(3x3)
Customer #
Key Attributes
4.5V to 24V, 10A Synchronous Buck Converter
DatasheetTI TPS51397ARJER
RoHS Compliance2 documents available
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement

Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerTI
PackagingQFN-20-EP(3x3)
Operating Temperature-40℃~+125℃@(TJ)
Frequency - Switching500kHz;800kHz
FunctionStep-down type
Number of Outputs1
FeaturesAdjustable soft-start;Output discharge;Cycle-by-cycle current limiting;Protection latch;Operating status indication;Light load efficient mode;Overcurrent Protection
Output TypeAdjustable
TopologyBuck
Operating Voltage4.5V~24V
Switch tube (built-in/external)Built-in
Output Voltage600mV~5.5V
Output Current10A
Quiescent Current110uA
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Introduction

AI Translation

This device is a monolithic 10A synchronous buck converter with integrated MOSFETs, offering ease of use and high efficiency with minimal external components, making it well-suited for space-constrained power systems. The TPS51397A employs D-CAP3™ control, which requires only internal compensation to achieve fast transient response and excellent line and load regulation. The ULQ™ (Ultra-Low Quiescent current) feature is particularly beneficial for extending battery life during low-power operation. At lower input voltages, heavy-load operation provides significantly improved load transient performance. The MODE pin can be used to select Eco-mode™ or Silent™ (OOA) mode for light-load operation, as well as switching frequencies of 500kHz or 800kHz. Eco-mode™ maintains high efficiency during light-load operation. OOA mode keeps the switching frequency above the audible range while minimizing the impact on efficiency. This device supports both internal and external soft-start options. It features a fixed internal soft-start time of 1.2ms. If the application requires a longer soft-start time, an external capacitor can be connected to the external SS pin. The TPS51397A integrates a power-good indicator and features output discharge capability. It provides comprehensive protection including OVP, UVP, OCP, OTP, and UVLO. The device is available in a 20-pin 3.0mm × 3.0mm HotRod™ package, rated for a junction temperature range of –40°C to 125°C.

Features

AI Translation
  • Input voltage range: 4.5V to 24V
  • Output voltage range: 0.6V to 5.5V
  • 10A continuous output current support
  • D-CAP3™ control architecture for fast transient response
  • 0.6V ± 1% feedback voltage accuracy (25°C)
  • Integrated 17mΩ and 5.9mΩ FETs
  • ULQ™ operation (110μA) for extended battery life during system standby
  • Eco-mode™ and Silent™ selectable via MODE pin
  • Selectable switching frequency: 500kHz and 800kHz
  • Adjustable internal soft-start time, default 1.2ms
  • High duty cycle operation
  • Integrated power-good indicator
  • Built-in output discharge function
  • Cycle-by-cycle overcurrent protection
  • Latched output OV and UV protection
  • Non-latched UVLO and OT protection
  • Operating junction temperature range: -40°C to 125°C
  • 20-pin 3.0mm × 3.0mm HotRod™ VQFN package
  • Pin-to-pin compatible with 12A TPS56C230
  • Create custom designs with TPS51397A using WEBENCH Power Designer

Applications

AI Translation
  • Laptops and desktops
  • Ultrabooks, handheld tablets
  • Industrial PCs, single-board computers
  • Distributed power systems