设计边界
核对输入/输出、电流、封装、开关频率和保护等级。
电源与电路保护
Voltage regulators, DC-DC converters, power management ICs, TVS diodes, fuses, varistors, and circuit protection components for reliable power delivery and surge protection.
替代策略
优先保持关键电气参数和热性能，再比较封装兼容性。
交付确认
电源类物料建议同步确认批量交期、包装和 RoHS 状态。
7 个产品 in 电源与电路保护
0603FF1.00-30R
Littelfuse
Fast-acting surface mount fuse, 1A rated current, 32V DC/AC, very fast blow, 0603 SMD package.
AMS1117-3.3
Advanced Monolithic Systems
Fixed 3.3V output, 1A LDO linear voltage regulator with 1.3V typical dropout, SOT-223 package.
LM2596S-5.0
Texas Instruments
Fixed 5V output, 3A step-down (buck) switching voltage regulator with 150 kHz switching frequency, TO-263 SMD.
LM7805CT
Texas Instruments
Classic 5V positive fixed linear voltage regulator, 1A output, TO-220 package.
MP1584EN
Monolithic Power Systems
High-frequency 3A synchronous step-down DC-DC converter, 4.5–28V input, adjustable output, 1.5MHz, SOT-23-8.
SMBJ5.0A
Littelfuse
Unidirectional transient voltage suppressor, 5V standoff, 600W peak pulse power, SMB (DO-214AA) package.
TL431AIDR
Texas Instruments
Programmable precision shunt voltage regulator with 0.5% accuracy, SOIC-8.