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LT1076-5技术文档下载:
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LT1076-5 - 典型应用图例:
LT1076-5典型应用图例一
LT1076-5 - 封装图解:
LT1076-5封装图解一
LT1076-5封装图解二
LT1076-5封装图解三
LT1076-5封装图解四
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Linear产品 - LT1076-5介绍
LT1076-5 - LT1076-5是5V Step-Down Switching Regulator

LT1076-5是Linear公司的一款内部开关电源降压产品,LT1076-5是5V Step-Down Switching Regulator,本站介绍了LT1076-5的封装应用图解、特点和优点、功能等,并给出了与LT1076-5相关的凌力尔特元器件型号供参考。

LT1076-5 - 5V Step-Down Switching Regulator

LT1076-5 - 5V Step-Down Switching Regulator - Linear Technology(凌力尔特)

功能描述

The LT1076-5 is a 2A fixed 5V output monolithic bipolar switching regulator which requires only a few external parts for normal operation. The power switch, all oscillator and control circuitry, all current limit components, and an output monitor are included on the chip. The topology is a classic positive “buck” configuration but several design innovations allow this device to be used as a positive-to-negative converter, a negative boost converter, and as a flyback converter. The switch output is specified to swing 40V below ground, allowing the LT1076-5 to drive a tapped inductor in the buck mode with output currents up to 4A.

The LT1076-5 uses a true analog multiplier in the feedback loop. This makes the device respond nearly instantaneously to input voltage fluctuations and makes loop gain independent of input voltage. As a result, dynamic behavior of the regulator is significantly improved over previous designs.

On-chip pulse by pulse current limiting makes the LT1076-5 nearly bust-proof for output overloads or shorts. The input voltage range as a buck converter is 8V to 60V, but a self-boot feature allows input voltages as low as 5V in the inverting and boost configurations.

The LT1076-5 is available in a low cost 5- and 7-lead TO-220 packages with frequency pre-set at 100kHz and current limit at 2.6A. See Application Note 44 for design details.

特点
  • Fixed 5V Output
  • 2A On-Board Switch
  • 100kHz Switching Frequency
  • 2% Output Voltage Tolerance Over Temperature
  • Greatly Improved Dynamic Behavior
  • Available in Low Cost 5- and 7-Lead Packages
  • Only 9.5mA Quiescent Current
  • Operates Up to 60V Input
  • 应用
  • 5V Output Buck Converter
  • Tapped Inductor Buck Converter with 4A Output at 5V
  • Positive-to-Negative Converter
  • 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)
    LT1076CQ-5 DDPAK-5 C $5.00 $3.95
    LT1076CQ-5#PBF DDPAK-5 C $5.00 $3.95
    LT1076CQ-5#TR DDPAK-5 C $4.07
    LT1076CQ-5#TRPBF DDPAK-5 C $4.07
    LT1076CR-5 DDPAK-7 C $5.42 $4.30
    LT1076CR-5#PBF DDPAK-7 C $5.42 $4.30
    LT1076CR-5#TR DDPAK-7 C $4.42
    LT1076CR-5#TRPBF DDPAK-7 C $4.42
    LT1076CT-5 TO-220 C $4.33 $3.40
    LT1076CT-5#06PBF TO-220 C $4.33 $3.40
    LT1076CT-5#PBF TO-220 C $4.33 $3.40
    LT1076CT7-5 TO-220 C $5.00 $3.95
    LT1076CT7-5#06 TO-220 C $5.00 $3.95
    LT1076CT7-5#PBF TO-220 C $5.00 $3.95
    LT1076HVCT-5 TO-220 C $7.58 $6.00
    LT1076HVCT-5#06 TO-220 C $7.58 $6.00
    LT1076HVCT-5#PBF TO-220 C $7.58 $6.00
    LT1076HVCT7-5 TO-220 C $8.75 $6.90
    LT1076HVCT7-5#PBF TO-220 C $8.75 $6.90
    LT1076HVIT-5 TO-220 I $9.55 $7.35
    LT1076HVIT-5#PBF TO-220 I $9.55 $7.35
    LT1076IT-5 TO-220 I $5.92 $4.85
    LT1076IT-5#PBF TO-220 I $5.92 $4.85
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