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MP1541数据手册(中文)-V1.002
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2022-08-03
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1.10 1.10.1 1.10.2 1.10.3 1.10.4 1.10.5 1.10.6 1.10.7 1.11 1.12 1.1 描述 1.2 特性 1.
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地址:广州市天河北路 689 号光大银行大厦 12 楼 F4
网址:http://www.zlgmcu.com
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广州周立功单片机科技有限公司
MP1541 数据手册 ©2015 Guangzhou ZLGMCU Technology CO., LTD.
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目 录
MP1541: 1.3MHz 升压转换器 ····································································· 1
1.1 描述 ··································································································· 1
1.2 特性 ··································································································· 1
1.3 应用 ··································································································· 1
1.4 典型应用····························································································· 1
1.5 订购信息····························································································· 2
1.6 电气特性
(5)
·························································································· 4
1.7 典型工作特性 ······················································································ 5
1.8 引脚功能····························································································· 6
1.9 工作 ··································································································· 6
1.10 应用信息····························································································· 6
1.10.1 设置输出电压 ················································································ 6
1.10.2 选择输入电容 ················································································ 7
1.10.3 选择输出电容 ················································································ 7
1.10.4 选择电感······················································································· 7
1.10.5 选择二极管 ··················································································· 7
1.10.6 补偿 ····························································································· 7
1.10.7 布线考虑······················································································· 8
1.11 典型应用电路 ······················································································ 9
1.12 封装信息···························································································· 10
广州周立功单片机科技有限公司 MP1541 数据手册
MP1541 数据手册 ©2015 Guangzhou ZLGMCU Technology CO., LTD.
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MP1541: 1.3MHz 升压转换器
1.1 描述
MP1541 是一个 5-脚 TSOT23 电流模式升压转换器,主要用于小型、低功率应用。MP1541
的开关频率为 1.3MHz,允许使用小巧、低成本的电容,电感高度等于或小于 2mm。内部软启
动导致小浪涌电流并延长电池寿命。MP1541 可在低至 2.5V 的输入电压下工作,在 5V 输入电
源、高达 300mA 的情况下可产生 12V 电压。
MP1541 包含欠压闭锁、电流限制和热过载保护,以防止在输出过载的情况下造成损坏。
MP1541 采用小型的 5-脚 TSOT23 封装。
1.2 特性
内置功率 MOSFET;
使用小巧的电容和电感;
1.3MHz 固定的开关频率;
内部补偿;
内部软启动;
工作的输入电压低至 2.5V,输出电压高至 22V;
5V 输入电源、高达 300mA 的情况下可产生 12V 电压;
UVLO、热关断;
内部电流限制;
采用 TSOT23-5 封装;
1.3 应用
照相机手机闪光;
掌上电脑和 PDA;
数码相机和摄像机;
外置调制解调器;
小型 LCD 显示器;
白光 LED 驱动器。
1.4 典型应用
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