The MIC2177 is a 200kHz synchronous buck (step-down) switching regulator designed for high-efficiency, battery-powered applications.

The MIC2177 operates from a 4.5V to 16.5V input and features internal power MOSFETs that can supply up to 2.5A output current. It can operate with a maximum duty cycle of 100% for use in low-dropout conditions. It also features a shut down mode that reduces quiescent current to less than 5µA.

The MIC2177 achieves high efficiency over a wide output current range by switching between PWM and skip mode. Operating mode is automatically selected according to output conditions. Switching frequency is preset to 200kHz and can be synchronized to an external clock signal of up to 300kHz.

The MIC2177 uses current-mode control with internal current sensing. Current-mode control provides superior line regulation and makes the regulator control loop easy to compensate. The output is protected with pulse-by-pulse current limiting and thermal shutdown. Undervoltage lockout turns the output off when the input voltage is less than 4.5V.

The MIC2177 is packaged in a 20-pin wide power SO package with an operating temperature range of -40°C to +85°C.

See the MIC2178 for externally selected PWM or skip-mode operation.

  • 4.5V to 16.5V input voltage range
  • Dual-mode operation for high efficiency (up to 96%)
  • PWM mode for > 200mA load current
  • Skip mode for < 200mA load current
  • 100 mΩ internal power MOSFETs at 12V input
  • 200kHz preset switching frequency
  • Low quiescent current
  • 1.0mA in PWM mode
  • 500μA in skip mode
  • < 5μA in shutdown mode
  • 100% duty cycle for low dropout operation
  • Current-mode control
  • Simplified loop compensation
  • Superior line regulation
  • Current limit
  • Thermal shutdown
  • Undervoltage lockout
NameValue
Regulator TypeStep Down (Buck)
# of Outputs1
Input Voltage Range Min (V)4.5
Input Voltage Range Max (V)16.5
Output Voltage Range Min (V)1.245
Output Voltage Range Max (V)16.5
Output Current (mA) max2500
Quiescent Current (mA) typ0.5
Switching Frequency (kHz)200
Synchronous RectifierYes
Operating Temp Range-40 to 85
Vfb (V)1.245
Duty Cycle Max (%)1
SHUTDOWN Current (μA) (Typ)1
Light Load Efficiency ModeYes

版权声明

本站内容均来自网络转载或网友提供,如有侵权请及时联系我们删除!本站不承担任何争议和法律责任!




Apply to demo onstage at TC Sessions: Robotics + AI 2019

The search is on for exceptional early-stage robotics or AI companies to demo their technology onstage at TC Sessions: Robotics + AI on April 18 at UC

Apply to demo onstage at TC Sessions: Robotics + AI 2019

下一代Xbox泄漏的规格和性能目标

在过去的几周里,有很多关于下一代游戏机的讨论,这在很大程度上要归功于PS5的泄漏。现在,Xbox方面的漏洞开始赶上。上周,我们听说微软仍计划明年推出两个针对不同功率和价格点的游戏机。现在,另一份报告出来了,详细介绍了下一代Xbox的规格和性能目标。Windows Central引用了多个内部消息来源

下一代Xbox泄漏的规格和性能目标

TLE2022AM

The TLE202x, TLE202xA, and TLE202xB devices are precision, high-speed, low-power operational amplifiers using a new Texas Instruments Excalibur proces

TLE2022AM

PTH08T220W

The PTH08T220/221W is a high-performance 16-A rated, non-isolated power module.These modules represent the 2nd generation of the popular PTH series po

PTH08T220W

SN74LS04

These devices contain six independent inverters.

SN74LS04


Fossil的Hybrid HR智能手表配备模拟表盘和电子墨水显示屏

智能手表具有不同的形状和大小,并支持各种功能。一些制造商选择了功能更强大的平台,这些平台具有许多功能以及耗电的显示器和芯片组。其他公司则为不需要腕上电脑所有功能的用户提供产品,他们只需要通知,健康跟踪和警报功能。该产品类别中的最新产品是Fossil Hybrid HR,它旨在成功地弥补时尚设计与功能

Fossil的Hybrid HR智能手表配备模拟表盘和电子墨水显示屏

高德地图联手南派三叔推出寻宝地图 稻米们集体亢奋

据悉,日前, 高德地图发表官宣,《盗墓笔记》系列小说作者南派三叔加盟高德景区随身听,“南派三叔寻宝地图”已经于12月27日在高德地图上线。 昨日,南派三叔微博发布消息称,“今天第一辑开始预售!第一辑的七个地点都曾在《盗墓笔记》小说中出现过。这次我会给大家讲一些地

高德地图联手南派三叔推出寻宝地图 稻米们集体亢奋

Adobe等公司正在设计一套能将署名永远留在图像上的系统

据外媒报道,日前宣布了一项新系统,把它将可以署名添加到照片和其他内容中。这套工具将能记录下究竟是谁创建了这一内容以及其是否有被其他人修改过,然后再让其他人和平台检查这些数据。 Adobe今日在Photoshop中展示了一个原型,不过很多细节仍在变化中,另外该公司也还没有发布具体的上线日期。据悉,整个

Adobe等公司正在设计一套能将署名永远留在图像上的系统

SN74LS42

These monolithic BCD-to-decimal decoders consist of eight inverters and ten four-input NAND gates. The inverters are connected in pairs to make BCD in

SN74LS42

TLC5941

The TLC5941 is a 16-channel, constant-current sink, LED driver. Each channel has an individually adjustable 4096-step grayscale PWM brightness control

TLC5941


Twitter suspends 'large network' of fake accounts used to match phone numbers to users

Twitterannounced today that over the holidays it identified and shut down "a large network of fake accounts," as well as many others "located in a wid

Twitter suspends 'large network' of fake accounts used to match phone numbers to users

旧款MacBook电池出问题?苹果可能用新机换

任何电子产品的电池在经过数百次的充电放电循环之后,电池已经损耗到无法使用的程度,苹果的 MacBook Pro 也不例外。针对 MacBook Pro 用户,如果你已经购买了 AppleCare+,那么苹果会给你提供免费更换电池服务,如果你没有购买或者已经不在保修期内,那么苹果就会额外收钱,不过的市

旧款MacBook电池出问题?苹果可能用新机换

华纳兄弟多年来一直在尝试制作超人游戏

业内人士詹姆斯·西格菲尔德(James Sigfield)最近通过Twitter透露,华纳兄弟公司自2013年以来一直在尝试推出超人游戏。他详细介绍了两个具体的项目,这些项目已被取消,但表明还有更多项目,华纳兄弟公司将继续追求超人游戏的想法。自从蝙蝠侠阿卡姆(Batman Arkham

华纳兄弟多年来一直在尝试制作超人游戏



大数据在应对疫情中大步向前发展

《哈佛商业评论》的作者Julie Shah和Neel Shah日前撰写了一篇有关大数据在冠状病毒疫情危机中带来好处的文章。并指出,大数据对于人们对抗这种疾病可能至关重要。 他们说,“人们将何去何从?我们相信答案在于计算。现在,人们需要尽可能多地将数据和计算能力投入到问题中。现在已经讨论了

大数据在应对疫情中大步向前发展




美国微芯半导体Microchip

Microchip公司自成立以来,就密切关注嵌入控制半导体产品市场。为了占领市场,集中了所有的技术、设计、生产、销售等各方面资源发展了两大拳头产品:PIC8位单片机(MCU)和高品质的串行EEPROM。到目前为止,Microchip公司已推出微控制器外围设备、模拟产品、RFID智能卡、KEELOQ保安产品,可设计出更全面,更具价值的嵌入控制系统方案,以满足用户日益增长的需求

热门推荐


随机推荐




艾金森