DC-DC升压+LDO IC(2.4G模块电源IC)

DC-DC升压+LDO IC(2.4G模块电源IC)

DC-DC升压+LDO IC(2.4G模块电源IC)型号工作模式工作电压范围LDO输出电压FB输出电压输出电压形式输出电压精度LDO输出电流升压效率静态电流封装特点HM1545PWM2.5V-4.2V3.3V3.8V固定输出+/-2%300mA90%900uASOT23-5支持VCC瞬态掉至1.5V，OUT端3.3V稳定输出：当VCC大于3.8V时，内部升压电路关闭，内部LDO电路开启，使OUT

用户界面：
操作系统：
键盘类型：
型号： DC-DC升压+LDO IC(2.4G模块电源IC)

在线询价

DC-DC升压+LDO IC(2.4G模块电源IC)

型号	工作模式	工作电压范围	LDO 输出电压	FB 输出电压	输出电压形式	输出电压精度	LDO 输出电流	升压效率	静态电流	封装	特点
HM1545	PWM	2.5V- 4.2V	3.3V	3.8V	固定输出	+/-2%	300mA	90%	900uA	SOT23-5	支持VCC瞬态掉至1.5V， OUT端3.3V稳定输出：当VCC大于3.8V时，内部升压电路关闭，内部LDO 电路开启，使OUT端输出稳定在3.3V；当VCC小于等于3.8V，快速启动内部升压电路，使FB脚有3.8V 稳定输出，同时内部LDO 开启使OUT端有3.3V稳定输出。可以解决2.4G模块等无线模块在应用中由于发射瞬态电流过大，电源电压被拉至较低电平而引起MCU复位的问题。

{"status":1,"html":"<style type=\"text\/css\">\r\n.onlinebox_three{border:2px solid;}\r\n.onlinebox_three .onlinebox_three_list{width: 160px;padding: 10px 0px;}\r\n.onlinebox_three .online-item{margin-bottom: 5px; padding: 0px 17px; position: relative;display: block;color: #666;}\r\n.onlinebox_three .online-item:last-child{margin-bottom: 0px;}\r\n.onlinebox_three .online-item:hover{background: #f8f8f8;}\r\n.onlinebox_three .online-item i{font-size: 16px;}\r\n.onlinebox_three .onlinebox-open{font-size: 22px;display:none;cursor: pointer;padding: 0 10px; font-size: 18px; line-height: 40px;}\r\n.onlinebox.min .onlinebox-open{display:block;padding:0 10px;background:#444;font-size:18px;line-height:40px;color:#fff}\r\n.onlinebox .onlinebox-min{position: relative;top:-4px;}\r\n@media (max-width: 767px){\r\n.onlinebox_three .online-item{font-size: 12px;padding-top: 6px;}\r\n.onlinebox_three .online-item i{font-size: 14px;}\r\n}\r\n<\/style>\r\n<div id='onlinebox'  class=\"onlinebox onlinebox_three hide\" m-type='online' m-id='online' style=\"border-color:#1baadb;\">\r\n    <div class=\"onlinebox-open\" style=\"background:#1baadb;\"><i class=\"fa fa-comments-o\"><\/i><\/div>\r\n    <div class=\"onlinebox-box\">\r\n        <div class=\"onlinebox-top\" style=\"background:#1baadb;\">\r\n            <div class=\"onlinebox-top-btn font-size-26\">\r\n                <a href=\"javascript:;\" class=\"onlinebox-close\" title=\"\">×<\/a>\r\n                <a href=\"javascript:;\" class=\"onlinebox-min\">-<\/a>\r\n            <\/div>\r\n            <h4>在线交流<\/h4>\r\n        <\/div>\r\n                                      <div class=\"onlinebox_three_list\">\r\n                                                                      <a class=\"online-item text-xs-center met-weixin\" href=\"javascript:void(0)\">\r\n                            <img src='https:\/\/fangankaifa.cn\/upload\/202003\/1584425772.jpg' alt='帆豆-深圳单片机开发,深圳产品方案开发' width='120' height='120'\/>\r\n                            <p class=\"m-b-0\">微信客服<\/p>\r\n                        <\/a>\r\n                                                                                      <a href=\"https:\/\/wpa.qq.com\/msgrd?v=3&uin=2253129633&site=qq&menu=yes\" title=\"2253129633\" class=\"online-item\" target=\"_blank\">\r\n                            <i class=\"\" style=\"color:#1baadb;\"><\/i>\r\n                            <span>QQ客服<\/span>\r\n                        <\/a>\r\n                                                <\/div>\r\n                <div class=\"met-editor onlinebox-bottom p-x-10 p-y-5\"><p>服务热线：<br\/>189-2936-3263<\/p><\/div>\r\n    <\/div>\r\n<\/div>","t":"4","x":"10","y":"100"}