LTC1157是3.3V Dual Micropower High-Side/Low-Side MOSFET Driver

Linear（凌力尔特）| Linear产品型号搜索

当前位置：Linear公司 > > 凌力尔特芯片 >> LTC1157

LTC1157技术文档下载：

LTC1157 - 典型应用图例：

LTC1157 - 封装图解：

LTC1157 - LTC1157是3.3V Dual Micropower High-Side/Low-Side MOSFET Driver

LTC1157是Linear公司的一款高压侧开关和 MOSFET 驱动器产品，LTC1157是3.3V Dual Micropower High-Side/Low-Side MOSFET Driver，本站介绍了LTC1157的封装应用图解、特点和优点、功能等，并给出了与LTC1157相关的凌力尔特元器件型号供参考。

LTC1157 - 3.3V Dual Micropower High-Side/Low-Side MOSFET Driver

LTC1157 - 3.3V Dual Micropower High-Side/Low-Side MOSFET Driver - Linear Technology（凌力尔特）

功能描述

The LTC1157 dual 3.3V micropower MOSFET gate driver makes it possible to switch either supply or ground reference loads through a low R DS(ON) Nchannel switch (N-channel switches are required at 3.3V because P-channel MOSFETS do not have guaranteed R DS(ON) with VGS </= 3.3V). The LTC1157 internal charge pump boosts the gate drive voltage 5.4V above the positive rail (8.7V above ground), fully enhancing a logic level N-channel switch for 3.3V high-side applications and a standard N-channel switch for 3.3V low-side applications. The gate drive voltage at 5V is typically 8.8V above supply (13.8V above ground), so standard N-channel MOSFET switches can be used for both high-side and low-side applications.Micropower operation, with 3µA standby current and 80µA operating current, makes the LTC1157 well suited for battery-powered applications.The LTC1157 is available in both 8-pin DIP and SOIC.

特点

Allows Lowest Drop 3.3V Supply Switching

Operates on 3.3V or 5V Nominal Supplies

3 Microamps Standby Current

80 Microamps ON Current

Drives Low Cost N-Channel Power MOSFETs

No External Charge Pump Components

Controlled Switching ON and OFF Times

Compatible with 3.3V and 5V Logic Families

Available in 8-Pin SOIC

应用

Notebook Computer Power Management

Palmtop Computer Power Management

P-Channel Switch Replacement

Battery Charging and Management

Mixed 5V and 3.3V Supply Switching

Stepper Motor and DC Motor Control

Cellular Telephones and Beepers

以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）

器件型号	封装	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量)
LTC1157CN8	N-8	C	$3.00	$2.45
LTC1157CN8#PBF	N-8	C	$3.00	$2.45
LTC1157CS8	SO-8	C	$3.15	$2.55
LTC1157CS8#PBF	SO-8	C	$3.15	$2.55
LTC1157CS8#TR	SO-8	C		$2.61
LTC1157CS8#TRPBF	SO-8	C		$2.61