南芯科技PMIC SC6301：完整LPDDR5/5X和LPDDR4X存储器电源全功率解决方案

时间： 2024-10-28 来源：SOUTHCHIP官网

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LPDDR 全称为Low Power Double Data Rate，简称低功耗内存，是美国JEDEC 固态技术协会指定的通信标准，以低功耗和小体积著称，专门用于移动式电子产品。

LPDDR5/5X 和LPDDR4X 都是低功耗内存标准，具有不同的性能和功能特点，可以应用于各种电子设备中，例如移动式电子产品等，其中LPDDR5X 相比LPDDR5，运行速度更快，性能提升1.5 倍，带宽提升2倍，同时支持多Bank Group 模式，数据可以多通道传输，从而进一步提升了传输数据带宽。而相比上一代的LPDDR4X，LPDDR5 的综合场景的续航能够提升10% 左右。

南芯科技近期推出一款适用于LPDDR5、LPDDR5X 和LPDDR4X 存储器的全功率解决方案PMIC——SC6301。

SC6301 DEMO展示

产品介绍

SC6301具有低静态电流、负载瞬态性能优异、高效率等特点。采用3x3mm FCQFN3X3 超小封装，能够为存储器系统节省PCB空间，可广泛应用于笔记本电脑，PC，平板电脑等移动式电子产品。

LPDDR5 电源轨需求如下：

SC6301 能满足JEDEC 标准对输出电压及时序的要求，通过对EN 和VDDQEN 控制，SC6301 实现S3/S5 状态灵活切换。SC6301集成了两个同步高频降压转换器(VDD2 和VDDQ)。该变换器采用带内部斜坡补偿的恒定导通时间控制模式，具有优异的负载瞬态性能，并支持极低ESR 输出电容器，如陶瓷电容。SC6301 内部集成低导通电阻功率MOSFETs 提高工作效率。

此外，VDD2 的峰值输出电流可达14A, VDDQ 的输出电流可达3A。SC6301 还集成了VDD1 的18mΩ 负载开关。VDD1 在1.8V 输入电压下支持最大3A的峰值输出电流。SC6301 集成了丰富的保护功能，在不损坏自身或系统负载的情况下扩展了工作范围，保护功能包括UVLO, OVP, OCP, UVP 和热关断。

功能

● VDD2的输入电压范围为3.1V至28

● 低静态电流

● LPDDR5内存电源解决方案兼容 LPDDR5X和LPDDR4X

● VDD2峰值输出电流14A

● VDD1峰值输出电流为3A

● VDDQ 连续输出电流为3A

● 恒定导通时间控制可实现快速瞬态响应

● 低ESR输出电容器稳定工作

● VDD2 650kHz工作频率

● 集成低导通电阻功率MOSFETs

● 输出精度高

● 电源时序控制

● 内部软启动

● 电源良好指示

● 输出放电功能

● UVLO, OCP, OVP, UVP，和热关断

● UVLO和过热保护无闩锁

● 采用3mmx3mm, FCQFN3X3封装

结语

南芯科技推出的首款LPDDR PMIC SC6301，是一款适用于LPDDR5、LPDDR5X和LPDDR4X存储器的全功率解决方案，有低静态电流、负载瞬态性能优异、高效率等特点，可广泛应用于于笔记本电脑，PC，平板电脑等移动式电子产品。

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本文由咪猫转载自SOUTHCHIP官网，原文标题为:重磅新品 | 南芯科技推出完整 LPDDR5/5X和LPDDR4X存储器电源解决方案，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

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