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UC285-3 快速瞬态响应 5A 低压降稳压器

	UC285-3
Iout(Max)(A)	5
Iq(Typ)(mA)	40
Vin(Max)(V)	7.5
Vout(Min)(V)	2.5
Vout(Max)(V)	2.5
Fixed Output Options(V)	2.5
Pin/Package	5DDPAK/TO-263, 5TO-220
Rating	Catalog
Regulated Outputs(#)	1

UC285-3 描述

The UC385 is a low dropout linear regulator providing a quick response to fast load changes. Combined with its precision onboard reference, the UC385 excels at driving GTL and BTL buses. Due to its fast response to load transients, the total capacitance required to decouple the regulator’s output can be significantly decreased when compared to standard LDO linear regulators. Dropout voltage (VIN to VOUT) is only 490 mV maximum and 350 mV typical at 5-A load (0°C to 100°C). The onboard bandgap reference is stable with temperature and scaled for a 1.2 V input to the internal power amplifier. The UC385 is available in fixed output voltages of 1.5 V, 2.1 V, or 2.5 V. The output voltage of the adjustable version can be set with two external resistors

UC285-3 特性

• Fast Transient Response
• 10-mA to 5-A Load Current
• Short Circuit Protection
• Maximum Dropout of 500-mV at 5-A Load Current
• Separate Bias (VB) and VIN Pins
• Available in Adjustable or Fixed Output Voltages
• 5-Pin Package Allows Kelvin Sensing of Load Voltage
• Reverse Current Protection

UC285-3 芯片订购指南

器件	状态	温度 (oC)	价格（美元）	封装 | 引脚	封装数量 | 封装载体	丝印标记
UC285T-3	ACTIVE	-40 to 85	4.35 | 1ku	TO-220 (KC) | 5	50 | TUBE	UC285T-3
UC285T-3G3	ACTIVE	-40 to 85	4.35 | 1ku	TO-220 (KC) | 5	50 | TUBE	UC285T-3
UC285TD-3	OBSOLETE	-40 to 85		DDPAK/TO-263 (KTT) | 5
UC285TDKTTT-3	ACTIVE	-40 to 85	3.65 | 1ku	DDPAK/TO-263 (KTT) | 5	50 | SMALL T&R	UC285TD-ADJ
UC285TDKTTT-3G3	ACTIVE	-40 to 85	3.65 | 1ku	DDPAK/TO-263 (KTT) | 5	50 | SMALL T&R	UC285TD-ADJ

UC285-3 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
UC285T-3	Green (RoHS & no Sb/Br)	CU SN	N/A for Pkg Type	UC285T-3	UC285T-3
UC285T-3G3	Green (RoHS & no Sb/Br)	CU SN	N/A for Pkg Type	UC285T-3G3	UC285T-3G3
UC285TDKTTT-3	Green (RoHS & no Sb/Br)	CU SN	Level-2-260C-1 YEAR	UC285TDKTTT-3	UC285TDKTTT-3
UC285TDKTTT-3G3	Green (RoHS & no Sb/Br)	CU SN	Level-2-260C-1 YEAR	UC285TDKTTT-3G3	UC285TDKTTT-3G3

UC285-3 应用技术支持与电子电路设计开发资源下载

1. UC285-3 数据资料 dataSheet 下载.PDF
2. TI 德州仪器LDO低压差线性稳压器驱动器选型与价格参考 . xls
3. Dual MOSFET Driver (PDF  498 KB)
4. 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)   (PDF  2206 KB)
5. LDO PSRR Measurement Simplified   (PDF  140 KB)
6. LDO Noise Demystified   (PDF  782 KB)
7. 标准线性产品交叉参考 (Rev. D)   (PDF  1058 KB)
8. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
9. 所选封装材料的热学和电学性质 (PDF 645 KB)
10. 高速数据转换 (PDF 1967 KB)