RP108 系列
低压3A LDO稳压器，带逆流保护
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概述
The RP108 Series are CMOS-based LDO regulators featuring 3A output with low on-resistance. The CMOS process provides both large output current and low supply current. The dropout voltage is significantly lower than bipolar regulators. The RP108 handles low voltage with an input voltage from 1.6V and an output voltage from 0.8V. Accordingly, the device supports highly integrated, low voltage-driven LSI as a rear stage of the DC/DC converter.
RP108J081x can set adjustable output voltage with external resistors. The CE pin can switch the regulator into standby mode. In addition to a fold-back protection circuit built into conventional LDO regulators, RP108 has a thermal shutdown circuit, a reverse current protection circuit and a constant slope circuit. The constant slope circuit is a soft start function to prevent inrush current and malfunction of devices.
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规格
消费 工业 车载 输入电压范围 1.6 V to 5.25 V (6.0 V) 工作温度范围 -40°C to 85°C (125°C) -40°C to 105°C (125°C) -40°C to 105°C (150°C) 电源电流 Typ. 350 µA 待机电流 Typ. 2 µA 输出电压范围 Internally Fixed Ver.: 0.8 V to 4.2 V (0.1 V step)
Externally Adjustable Ver.: 0.8 V to 4.2 VInternally Fixed Ver.: 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.0 V, 3.3 V
Externally Adjustable Ver.: 0.8 V to 4.2 VInternally Fixed Ver.: 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.0 V, 3.3 V
Externally Adjustable Ver.: 0.8 V to 4.2 V输出电压精度 ±1.0% (Ta = 25°C)
(±15 mV accuracy at VSET ≤ 1.5 V, Ta = 25°C)输出电压温度系数 Typ. ±100 ppm/°C 压差电压 Typ. 0.51 V (VOUT = 2.5 V) 线路调节 Typ. 0.1%/V 输出电流 Min. 3 A 纹波抑制 Typ. 65 dB (f = 1 kHz, VOUT = 2.5 V) 封装 TO-252-5-P2 保护回路/功能
TSD Reverse Current Limit ISC Inrush Constant Slope ECO mode Auto Discharge External Driver 
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技术资料
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RP108J081x Typical Application: Externally adjustable output voltage type
Output voltage should be set up to 4.2V
VOUT = 0.8×((R1+R2) / R2) -
RP108Jxx1x Typical Application: Internally fixed output voltage type
The VOUT pin should be connected to the VFB pin
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RP108J251x Dropout Voltage vs. Output Current
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品质&封装
产品名称 对应 封装 标注 信赖性 RP108Jxx1x-T1-FE TO-252-5-P2 RP108J RP108J-FE RP108Jxx1x-T1-YE TO-252-5-P2 RP108J RP108J-YE RP108Jxx1x-T1-AE TO-252-5-P2 RP108J RP108J-AE - 有关产品的详细信息，请参见数据表。
- 封装文件包括封装尺寸，卷带规格，卷带盘尺寸，功耗和建议的焊盘图案。
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功能说明
| TSD | Thermal Shutdown Function |
|---|---|
| Reverse Current Protection | Reverse Current Protection |
| Current Limit | Overcurrent Protection |
| ISC | Short Current Protection |
| Inrush Current Limit | Inrush Current Protection |
| Constant Slope | Constant Slope Function |
| ECO mode | ECO Function |
| Auto Discharge | Auto Discharge Function |
| External Driver | External Output Driver Transistor |