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首页>>芯片选型>>DC降压芯片

芯片型号 输入(V) 输出(V) 电流(A) 效率 MOS 应用/保护功能 封装 包装(盘) 规格书 状态 样品
QT5305 20v-58v 3v-24v 350MA 90%以上 内置 60v48v42v36v转15v12v9v5v3v SOP-8 4000 量产 申请

* 上方QT5305芯片参数仅供参考,详细技术参数请以QT5305技术规格书为准

QT5305是一款48V电池供电降压型DC-DC电源管理芯片,内部集成基准电源、振荡器、误差放大器、过热保护、限流保护、短路保护等功能,非常适合高压60V场合应用。
QT5305应用在电动车48V控制器系统中,能直接替代LM317、LM7815或电阻型降压线性稳压器,具有高效率,高可靠性等特性,能大大降低整体控制器的温度,使整个系统能够更可靠工作。
QT5305 is a 48V battery-powered step-down DC-DC power management chip. It integrates functions such as reference power supply, oscillator, error amplifier, overheat protection, current limit protection, and short circuit protection. It is very suitable for high-voltage 60V applications.
QT5305 is used in the electric vehicle 48V controller system, can directly replace LM317, LM7815 or resistive step-down linear regulator, with high efficiency, high reliability and other characteristics, can greatly reduce the temperature of the overall controller, so that the entire system can Work more reliably.
48v转15v400ma芯片
宽电压输入电压范围:20V至60V
外接元件少,无需外围补偿网络能达到稳定工作
保护功能:
过流保护
短路保护
外接一个电容可设置工作频率(10KHz-100KHz)
UVLO欠压锁定功能:
Vcc引脚端的开启电压6.5V
Vcc引脚端的关闭电压3.5V
UVLO迟滞电压为3V
无需外接启动电阻
可外部扩展高压功率管应用于输出大电流场合
外接一个小功率电阻可控制峰值电流
逐周限流控制
封装形式:DIP-8和SO-8

Wide input voltage range: 20V to 60V
Few external components, no need for external compensation network to achieve stable operation
Protective function:
Overcurrent protection
Short circuit protection
An external capacitor can set the operating frequency (10KHz-100KHz)
UVLO undervoltage lockout function:
The turn-on voltage of the Vcc pin is 6.5V
The turn-off voltage of the Vcc pin is 3.5V
UVLO hysteresis voltage is 3V
No need to connect an external start resistor
Built-in high voltage power tube
The high-voltage power tube can be extended externally to be used in high-current output occasions
An external low-power resistor can control the peak current
Weekly current limit control
Package form: DIP-8 and SO-8


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上一个DC降压芯片型号:QT5214 下一个DC降压芯片型号:QT5308