R5541 系列
18mΩ导通阻抗的3A负载开关IC
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概述
The R5541 Series are CMOS-based dual supply voltage load switch ICs. The R5541 is an ideal switch for supplying the power from the secondary power source such as the output of a step-down DC/DC converter to the load circuit. A built-in N-channel driver transistor with typically 18 mΩ ON resistance allows the R5541 to provide a low dropout voltage. The R5541 includes a soft-start circuit, a thermal shutdown circuit, a reverse current protection circuit (at off state), and a UVLO circuit.
Besides the low supply current by CMOS, the R5541 has low voltage with an input voltage from 0.6 V. Accordingly, the device supports on the distribution of low voltage power supply system. An ultra-small 6-pin DFN(PL)1216-6G package is available.
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规格
消费 输入电压范围 0.6 V to 4.8 V (5.5 V) 工作温度范围 -40°C to 85°C (125°C) 电源电流 Typ. 25 µA (IOUT = 0 mA) 待机电流 Typ. 0.01 µA 输出电流 Max. 3 A 导通电阻 18 mΩ (VIN = 1.0 V, VBIAS = 5.0 V) 内置FET Nch 封装 DFN(PL)1216-6G VBIAS Input Voltage Range (Maximum Rating) 2.5 V to 5.5 V (6.0 V) Thermal Shutdown 145°C 保护回路/功能
TSD Reverse OCP UVLO OVLO Soft Start PGOOD Auto Discharge Reset 
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技术资料
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Typical Application
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Switch On Resistance vs. VIN Input Voltage
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VOUT Output Voltage On Time vs. DELAY Capacitance
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品质&封装
产品名称 对应 封装 标注 信赖性 R5541K001x-E2 DFN(PL)1216-6G R5541K R5541K - 有关产品的详细信息，请参见数据表。
- 封装文件或数据表包括封装尺寸，卷带规格，卷带盘尺寸，功耗和建议的焊盘图案。
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买入/样品
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下载数据表
功能说明
| TSD | Thermal Shutdown Function |
|---|---|
| Reverse Current Protection | Reverse Current Protection |
| OCP | Overcurrent Protection |
| UVLO | Undervoltage Lockout Protection |
| OVLO | Overvoltage Lockout Protection |
| Soft Start | Soft Start Function |
| PGOOD | Power Good Output |
| Auto Discharge | Auto Discharge Circuit |