Datasheet > TDA21490

TDA21490

更新时间： 2024-11-22 11:16:07

品牌	Logo	应用领域
英飞凌 - INFINEON		驱动服务器存储驱动器调节器
页数	文件大小	规格书
11页	1054K
描述
TDA21490 专为服务器、存储、人工智能(AI) 和网络应用中使用的高性能 xPU、ASIC和SOC提供强健可靠的电压调节器(VR) 而设计。TDA21490 采用高热效封装的 OptiMOSTM 功率 MOSFETs，具有同类产品中最佳的效率。低静态电流驱动器可以启用深度睡眠模式，进一步提高轻载效率，还可以提供精准的电流感测，有助于大幅提升系统性能。

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TDA21490 数据手册

TDA21490

OptiMOS^TMPower Stage

TDA21490

Description



High frequency, low profile dc-dc converters



Voltage Regulators for CPUs, GPUs, and high current rails

The TDA21490 power stage contains a low quiescent-current synchronous buck gate-driver IC co-packaged with

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 TDA21490 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, bootstrap

capacitor under-voltage protection, phase fault detection, IC temperature reporting and thermal shutdown. The

TDA21490 also features auto-replenishment of the bootstrap capacitor to prevent over-discharging. The

TDA21490 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 values while maintaining industry leading efficiency.

The TDA21490 is optimized for CPU core power delivery in server applications. The ability to meet the stringent

requirements of the server market also makes the TDA21490 ideally suited for powering GPU and DDR memory

designs.

Features



Co-packaged driver, 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 peak current capability of 90 A

Output DC current capability of 70 A

Operation up to 1.5 MHz

VCC/VDRV under-voltage lockout (UVLO)

Bootstrap capacitor under-voltage protection

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

Please read the Important Notice and Warnings at the end of this document

<2020-12-01>

www.infineon.com

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