RN5RK 系列
8V输入VFM升压DC/DC转换器
RN5RK 系列
8V输入VFM升压DC/DC转换器
拡大
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概述
The RN5RK Series are low supply current, CMOS-based VFM step-up DC/DC converters. By simply using an inductor, a diode, and a capacitor as external components, a high-efficiency step-up DC/DC converter can be easily configured. RN5RK comes in two versions: xx1 version with an internal output transistor and xx2 version with an external transistor.
规格
| 消费 | |
|---|---|
| 输入电压范围 | 0.7 V to 8.0 V (9.0 V) |
| 工作温度范围 | -40°C to 85°C (125°C) |
| 电源电流 | Typ. 35 µA |
| 待机电流 | Typ. 0 µA |
| 启动电压 | Max. 0.9 V (Ver. xx1) Max. 0.8 V (Ver. xx2) |
| 输出电压范围 | 2.0 V to 5.5 V (0.1 V step) |
| 输出电压精度 | ±2.5% |
| 振荡器频率 | Typ. 100 kHz |
| 最大占空比 | Min. 70%, Typ. 77% (Ver. A) Min. 47%, Typ. 55% (Ver. B) |
| 封装 | SOT-23-5 |
保护回路/功能
| TSD | OCP | OVP | UVLO | OVLO | Reverse | Shutdown | Soft Start | SSCG | PGOOD | Auto Discharge | Anti-ringing | Sequencing | Max Duty | Ext. Phase | LED Adjust |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
功能说明
| TSD | 热关断电路 |
|---|---|
| OCP | 过流保护 注：以前标记为“ILX”的功能现在改为“OCP”。 |
| OVP | 过压保护 |
| UVLO | 欠压锁定功能 |
| OVLO | Overvoltage Lockout Protection |
| Reverse | 反向电流保护电路 |
| Shutdown | 关机功能 |
| Soft Start | 软启动功能 |
| SSCG | Spread Spectrum Clock Generator Function |
| PGOOD | Power Good Output |
| Auto Discharge | 自动放电功能 |
| Anti-ringing | Anti-ringing Switch Function |
| Sequencing | Start-up Sequencing Control |
| Max Duty | 最大占空比 |
| Ext. Phase | 外部可调相位补偿 |
| LED Adjust | LED High-speed Dimming Control |
技术资料
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RN5RKxx1x Typical Application
L=100µH, CL=47µF
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RN5RKxx2A Typical Application
L=27µH, CL=47µF×2, Rb=300Ω, Cb=0.01µF
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RN5RK301A Efficiency vs. Output Current
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RN5RK302A Efficiency vs. Output Current
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相关信息
品质&封装
- 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。
常问问题
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