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LTC1148HVIS
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LTC1148HVIS

  • 所属类别:稳压器
  • 产品名称:高效率同步降压开关稳压器
  • 厂商:LINEAR
  • 生产批号:10+
  • 封装:SOP14
  • 库存状态:有库存
  • 库存量:1090
  • 最低订购量:1
  • 详细资料:点击查找LTC1148HVIS的pdf资料
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  • Product Introduction

LTC1148HVIS 

High-efficiency synchronous step-down switching regulator

peculiarity Ultra-high efficiency: more than 95% possibility Excellent current-mode operation for line and load transient response Thirty years of output current to maintain high efficiency Low 160μA standby current at light loads Logic-controlled micropower shutdown: I Q

description

In addition, the LTC ® 1148 series is a synchronous buck switching regulator controller with automatic burst mode ™ operation to maintain high efficiency at low output currents. These devices drive external complementary power MOSFETs switching up to 250kHz using a constant shutdown time current mode architecture, and the inductors provide constant ripple current.

The operating current level is user-programmable by means of an external current sense resistor. Wide input voltage range allows operation from 3.5V* to 18V (20V max). A constant shutdown time architecture that provides low dropout regulation of the resistance of limited R DS(ON) external MOSFETs and inductors and current-sense resistors.

LTC1148 series combines the highest efficiency, synchronous switching of high currents in automatic low-current operation mode, the so-called burst mode operation, thus reducing switching losses. Standby power consumption is reduced to only 2MW (I OUT = 0) at V IN = 10V. Typical 0 mA of load current of 300mA for burst mode operation.

Up to 48V input, LTC1149 and LTC1159 datasheets and application notes54.

* LTC1148L and LTC1148L 3.3 pieces.
Granted by U.S. patents, which include 6580258, 5481178.

ICs related to LTC1148HVIS include:


Model Manufacturers lot number encapsulation illustrate
LTC1148HVIS LINEAR 10+ SOP14 High-efficiency synchronous step-down switching regulator

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