RP514 系列
低消费电流 100mA 降压DC/DC转换器,带电池电压监控功能

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  • 概述

    The RP514 is a buck DC/DC converter with a Battery Monitor (BM) featuring ultra-low current and low-voltage resistance. The battery monitor divides the input voltage (VIN) into 1/3 or 1/4 to a buffer output and inputs a signal directly into the MCU’s built-in low voltage AD converter without external circuits. It is suitable for use in wearable and IoT devices that require miniaturization and long-lifetime of battery.

    • Ultra-low consumption current (IQ: 0.3 µA) with the VFM control for DC/DC (switching frequency: 1 MHz max.)
    • High efficiency under light load conditions: 90% with 1.8 V and 100 mA
    • Reducing components and space by combining DC/DC and BM into a single chip
    • Suitable for coin batteries and USB ports due to its wide input voltage range from 1.8 V to 5.5 V

  • 规格
    消费
    输入电压范围 1.8 V to 5.5 V (6.5 V)
    工作温度范围 -40°C to 85°C (125°C)
    待机电流 Typ. 0.01 µA
    工作静态电流 DC/DC Section: Typ. 0.3 µA
    BM Section: Typ. 0.1 µA
    输出电压范围 1.0 V to 4.0 V (0.1 V step)
    输出电压精度 ±1.5% (Ta = 25°C)
    输出电流 100 mA
    振荡器频率 Typ. 1 MHz
    封装 WLCSP-9-P2, DFN(PLP)2527-10
    BM Output Voltage VIN /3 (RP514xxx3x)
    VIN /4 (RP514xxx4x)
    BM Output Voltage Accuracy ±30 mV

    保护回路/功能

    TSD ILX OCP OVP UVLO OVLO Reverse Shutdown Soft Start SSCG PGOOD Auto Discharge Anti-ringing Sequencing Max Duty Ext. Phase LED Adjust
  • 技术资料
    • Typical Application

      Typical Application

    • Efficiency vs. Output Current (VOUT = 1.8 V)

      Efficiency vs. Output Current (VOUT = 1.8 V)

  • 品质&封装
    • 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。
    • 请联系我们或我们的代理商以获取未发布的可靠性信息。

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功能说明

TSD 热关断电路
ILX LX Current Limit Function
OCP 过流保护
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

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分类:DC / DC开关稳压器

拓扑结构 Buck
输入电压
min (V)
1.8
输入电压
max (V)
5.5
输出电压
min (V)
1.0
输出电压
max (V)
4.0
输出电流
(mA)
100
消费电流
(µA)
0.4