TDA21472

TDA21472 TDA21472 OptiMOS™ Powerstage DC-DC converter voltage regulator Features  Co-packaged driver, Schottky diode, and high-side and low-side MOSFETs  5-mV/A on-chip MOSFET current sensing with temperature compensated reporting  Input voltage (VIN) range of 4.25 V to 16 V  VCC and VDRV supply of 4.25 V to 5.5 V  Output voltage range from 0.25 V up to 5.5 V  Output current capability of 70 A  Operation up to 1.5 MHz  VCC/VDRV under voltage lockout (UVLO)  8-mV/°C temperature analog output  Thermal shutdown and fault flag  Cycle-by-cycle over current protection with programmable threshold and fault flag  MOSFET phase fault detection and flag  Auto-replenishment of bootstrap capacitor  Deep-sleep mode for power saving  Compatible with 3.3-V tri-state PWM input  Body-Braking load transient support  Small 5 mm x 6 mm x 1 mm PQFN package  Lead free RoHS compliant package Description The TDA21472 power stage contains a low quiescent-current synchronous buck gate-driver IC co-packaged with Schottky diode, and high-side and low-side MOSFETs. The package is optimized for PCB layout, heat transfer, driver/MOSFET control timing, and minimal switch node ringing when layout guidelines are followed. The gate driver and MOSFET combination enables higher efficiency at the lower output voltages required by cutting edge CPU, GPU and DDR memory designs. The TDA21472 internal MOSFET current sense algorithm with temperature compensation achieves superior current sense accuracy versus best-in-class controller-based inductor DCR sense methods. Protection includes cycle-by-cycle over current protection with programmable threshold, VCC/VDRV UVLO protection, phase fault detection, IC temperature reporting and thermal shutdown. The TDA21472 also features auto-replenishment of the bootstrap capacitor to prevent over-discharging. The TDA21472 features a deep-sleep power saving mode, which greatly reduces the power consumption when the multiphase system enters PS3/PS4 mode. Operation at switching frequency as high as 1.5 MHz enables high performance transient response, allowing reduction of output inductance and output capacitance while maintaining industry leading efficiency. The TDA21472 is optimized for CPU core power delivery in server applications. The ability to meet the stringent requirements of the server market also makes it ideally suited for powering GPU and DDR memory designs. Data Brief www.infineon.com Please read the Important Notice and Warnings at the end of this document page 1 of 4 V 1.0 2019-07-17 TDA21472 OptiMOS™ Powerstage DC-DC converter voltage regulator Potential applications  CPUs  GPUs  DDR memory arrays Product validation Qualified for industrial applications according to the relevant tests of JEDEC47/20/22 Product identification and ordering information Part Number Temp Range Package TDA21472 -40℃ to 125℃ PQFN 5mm x 6 mm Data Brief 1715 2 of 4 Marking TDA21472 V 1.0 2019-07- TDA21472 OptiMOS™ Powerstage DC-DC converter voltage regulator Typical application diagram Data Brief 1715 3 of 4 V 1.0 2019-07- Trademarks All referenced product or service names and trademarks are the property of their respective owners. Edition 2019-07-17 Published by Infineon Technologies AG 81726 Munich, Germany © 2019 Infineon Technologies AG. All Rights Reserved. Do you have a question about this document? Email: erratum@infineon.com Document reference ifx1 IMPORTANT NOTICE The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics (“Beschaffenheitsgarantie”) . With respect to any examples, hints or any typical values stated herein and/or any information regarding the application of the product, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation warranties of non-infringement of intellectual property rights of any third party. In addition, any information given in this document is subject to customer’s compliance with its obligations stated in this document and any applicable legal requirements, norms and standards concerning customer’s products and any use of the product of Infineon Technologies in customer’s applications. The data contained in this document is exclusively intended for technically trained staff. It is the responsibility of customer’s technical departments to evaluate the suitability of the product for the intended application and the completeness of the product information given in this document with respect to such application. For further information on the product, technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies office (www.infineon.com). WARNINGS Due to technical requirements products may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies office. Except as otherwise explicitly approved by Infineon Technologies in a written document signed by authorized representatives of Infineon Technologies, Infineon Technologies’ products may not be used in any applications where a failure of the product or any consequences of the use thereof can reasonably be expected to result in personal injury.