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TI TPS40428RHATRoHS

Manufacturer
TI
MPN
TPS40428RHAT
LCSC Part #
C181645
Packaging
VQFN-40-EP(6x6)
Customer #
Key Attributes
Dual Output, 2-Phase, Stackable PMBus Synchronous Buck Driverless Controller with Adaptive Voltage Scaling (AvS) Bus
Datasheetpdf iconTI TPS40428RHAT
In-Stock: 249
249 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 8.1877$ 8.19
10+$ 7.8368$ 78.37
30+$ 7.6244$ 228.73
100+$ 7.4457$ 744.57
Standard Packaging250/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/DC DC Switching Controllers
ManufacturerTI
PackagingVQFN-40-EP(6x6)
Operating Temperature-40℃~+125℃@(TJ)
Synchronous RectifierYes
Output Current-
FeaturesAdjustable current limiting;Hiccup current limiting;Adjustable soft-start;Output voltage differential sensing;Frequency synchronization;Overcurrent Protection;Operating status indication
Number of Channels2
TopologyBuck
Operating Voltage4.5V~20V
Frequency - Switching200kHz~1.5MHz
Output TypeAdjustable
Switch tube (built-in/external)External
Output Voltage600mV~1.5V
FunctionStep-down type
Quiescent Current15.9mA
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging250
Sales UnitPiece

Introduction

AI Translation

The TPS40428 device is a PMBus, synchronous buck, driverless controller. It operates in smart power mode with factory default settings, and it can operate in non-smart power mode after PMBus programing and power reboot. It can be configured for dualoutput or 2-phase operation. It is also stackable up to 4 phases to support load current as high as 120 A. Interleaved phase shift for 2-, 3-, or 4-phases reduce the input and output ripples therefore reducing input and output capacitance. The wide input voltage range can support 5-V and 12-V intermediate supply buses. The 0.5% reference voltage satisfies the need of precision voltage to the modern ASICs. Using the PMBus standard, the TPS40428 device can program reference voltage, fault limit, UVLO threshold, soft-start time and turn-on and turn-off delay. In addition, the device implements an accurate measurement system to monitor the output voltages, currents and temperatures for individual channels.

Features

AI Translation
  • Smart Power Mode in Factory Default (Compatible with TI Smart Power Stage CSD95378B and Pinfor-Pin Equivalent to TPS40425 – Non-Smart Power Mode in Factory Default)
  • Single Supply Operation: 4.5 V to 20 V
  • VOUT from 0.6 V
  • Dual or Multi-Phase Synchronous Buck Controller
  • Individual High-Speed AVS Interface
  • Fast Transient Response
  • Stackable up to Four Phases – 2-, 3-, or 4-Phase Interleaved Phase Shifts
  • Accurate Current Sharing
  • PMBus Interface Capability
  • Margining Up/Down with 2-mV Step
  • Programmable Fault Limit and Response
  • ±0.8% VOUT Accuracy
  • Current Monitoring
  • ±3°C External Temperature Monitoring In Smart Power Mode
  • Programmable UVLO ON/OFF Thresholds
  • Programmable Soft-Start Time, Turn-On Delay, and Turn-Off Delay
  • On-Chip Non-Volatile Memory (NVM) to Store Custom Configurations
  • 0.6-V Reference Voltage with 0.5% Accuracy from -40°C to 125°C
  • Programmable fSW from 200 kHz to 1.5 MHz
  • Supports Pre-biased Output
  • Differential Remote Sensing
  • Synchronization to an Extermal Clock
  • OC/OV/UV/OT Fault Protection
  • 40-Pin, 6 mm×6 mm, QFN Package

Applications

AI Translation
  • Wireless Infrastructure
  • Switcher/Router
  • Networking/Server/Storage