WMSIC Electronic Components

ON NCP161AFCS180T2G

ModelNCP161AFCS180T2G
PackageWLCSP-4(0.64x0.64)
BrandON
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 25+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
ON NCP161AFCS180T2G
Type
ON
Unit
Electronic Component
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
450mV@(450mA)
Electronic Component
ON
Electronic Component
NCP161AFCS180T2G
Electronic Component
1
Package
WLCSP-4(0.64x0.64)
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.044g
Electronic Component
1
Features
Output
Electronic Component
BM0259565737
Operating Temperature
40℃~+125℃
Operating Voltage
5.5V
Output
Electronic Component
Output Voltage
1.8V

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

NCP161AFCS180T2G 产品概述

一、产品简介

NCP161AFCS180T2G 是安森美(ON Semiconductor)推出的一款低压差线性稳压器(LDO),为固定输出 1.8V、最大输出电流 450mA 的单通道正输出器件。器件采用超小型 WLCSP-4 封装(0.64 × 0.64 mm),适合空间受限的移动与便携类应用。典型特性包括超低静态电流、优异的电源纹波抑制能力以及完整的保护功能,适用于电池供电与高性能模拟/数字电源域。

二、主要电气性能

  • 输出电压:固定 1.8V
  • 最大输出电流:450 mA
  • 最大工作电压(输入):5.5 V(应参照数据手册确认推荐输入范围)
  • 压降(Dropout):约 450 mV @ 450 mA
  • 静态电流(Iq):典型 23 µA,适合低功耗应用
  • PSRR:约 91 dB @ 100 Hz,抑制低频电源噪声能力强
  • 工作温度范围:-40 ℃ 至 +125 ℃

三、功能特点与保护

  • 带使能(EN)引脚,可实现电源开关控制与待机隔离
  • 过流保护(OCP)、短路保护与过热保护(OTP),提高系统可靠性
  • 输出为正极性单通道,输出稳定性优良,适配多类负载
  • 超小封装有利于高密度 PCB 设计,但对热管理提出更高要求

四、封装与引脚概述

器件为 WLCSP-4 封装(0.64 × 0.64 mm),典型四引脚布局包含:IN、OUT、EN(或使能/参考)及 GND。该小型封装便于移入到空间受限的模块中,但应注意焊盘设计与热回流路径以保证散热性能与电气连接可靠性。详细引脚排列及焊盘尺寸请参见厂商封装图。

五、典型应用场景

  • 手机、可穿戴设备与消费类便携电子产品的核心/外围电源
  • 物联网节点、传感器模组与低功耗 MCU 电源
  • 摄像头模组、射频前端电源与模拟电路供电(受益于高 PSRR)
  • 需要快速软启动与使能控制的小型电源设计

六、设计注意事项

  • 输入/输出电容:为保证稳定与瞬态响应,建议在 IN/OUT 端使用低 ESR 陶瓷电容(参照厂商推荐值,典型范围 1 µF–10 µF);输出端电容与 ESR 对稳定性影响显著,布局靠近引脚。
  • 热设计:在满载与较高输入电压差条件下器件功耗显著(P ≈ (Vin−1.8V)×Iout),例如 Vin=5V、Iout=450mA 时约 1.47W,需通过铜箔散热、底部焊盘或散热通道降低结温,避免触发热关断。
  • PCB 布局:缩短输入与输出的回流路径,增加大面积接地平面以提高 PSRR 表现与热传导;使能引脚应按功能要求接入逻辑或拉高/拉低电阻。
  • 启动与短路:器件内置保护,但仍需评估启动时电流冲击与短路恢复特性,确保系统整体容错能力。

七、总结

NCP161AFCS180T2G 以其超小 WLCSP 封装、低静态电流与高 PSRR 特性,适合对空间、能耗与噪声抑制有较高要求的便携与 IoT 终端。设计时应重点关注输出电容选型与热管理,以发挥器件在高效、可靠电源方案中的优势。更多详细电气规格、典型应用电路及布局建议,请参考安森美官方数据手册。

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