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LTC2923 - 典型应用图例：
LTC2923典型应用图例一
LTC2923典型应用图例二
LTC2923 - 封装图解：
LTC2923封装图解一
LTC2923封装图解二
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LINEAR产品 - LTC2923介绍

LTC2923 - LTC2923是Power Supply Tracking Controller

LTC2923是LINEAR凌力尔特公司的一款排序器、跟踪器和裕度调节控制器产品，LTC2923是LTC2923是Power Supply Tracking Controller，本站介绍了LTC2923的封装应用图解、特点和优点、功能等，并给出了与LTC2923相关的LINEAR元器件型号供参考。

LTC2923 - LTC2923是Power Supply Tracking Controller - 排序器、跟踪器和裕度调节控制器 - 监视、控制和保护 - 凌力尔特

LTC2923 - Power Supply Tracking Controller

LTC2923 - Power Supply Tracking Controller - Linear Technology（凌力尔特）

功能描述

The LTC2923 provides a simple solution to power supply tracking and sequencing requirements. By selecting a few resistors, the supplies can be configured to ramp-up and ramp-down together or with voltage offsets, time delays or different ramp rates.

By introducing currents into the feedback nodes of two independent switching regulators, the LTC2923 causes their outputs to track without inserting any pass element losses. Because the currents are controlled in an openloop manner, the LTC2923 does not affect the transient response or stability of the supplies. Furthermore, it presents a high impedance when power-up is complete, effectively removing it from the DC/DC circuit.

For systems that require a third supply, one supply can be controlled with a series FET. This optional series FET can also control a supply that does not allow direct access to its feedback resistors (e.g., a power module) or a supply whose output cannot be forced to ground (e.g., a 3-terminal linear regulator). When the FET is used, an electronic circuit breaker provides protection from short-circuit conditions.

特点
  • Flexible Power Supply Tracking
  • Tracks Both Up and Down
  • Power Supply Sequencing
  • Supply Stability is Not Affected
  • Controls Two Supplies Without Series FETs
  • Controls a Third Supply With a Series FET
  • Adjustable Ramp Rates
  • Electronic Circuit Breaker
  • Available in 10-Lead MS and 12-Lead (4mm × 3mm) DFN Packages
    • 应用
  • VCORE and VI/O Supply Tracking
  • Microprocessor, DSP and FPGA Supplies
  • Servers
  • Communication Systems
    • 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)
    LTC2923CDE 4x3 DFN-12 C $3.60 $3.15
    LTC2923CDE#PBF 4x3 DFN-12 C $3.60 $3.15
    LTC2923CDE#TR 4x3 DFN-12 C $3.21
    LTC2923CDE#TRPBF 4x3 DFN-12 C $3.21
    LTC2923CMS MS-10 C $3.90 $2.95
    LTC2923CMS#PBF MS-10 C $3.90 $2.95
    LTC2923CMS#TR MS-10 C $3.01
    LTC2923CMS#TRPBF MS-10 C $3.01
    LTC2923IDE 4x3 DFN-12 I $4.15 $3.60
    LTC2923IDE#PBF 4x3 DFN-12 I $4.15 $3.60
    LTC2923IDE#TR 4x3 DFN-12 I $3.66
    LTC2923IDE#TRPBF 4x3 DFN-12 I $3.66
    LTC2923IMS MS-10 I $4.50 $3.40
    LTC2923IMS#PBF MS-10 I $4.50 $3.40
    LTC2923IMS#TR MS-10 I $3.46
    LTC2923IMS#TRPBF MS-10 I $3.46
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  • LTC2924 - 四通道电源排序器
  • LT3080 - 可调 1.1A、单电阻、低压差稳压器
  • LT4363 - 具电流限制功能的高电压浪涌抑制器
  • LTC2928 - 多通道电源排序器和监控器
  • LT1963A - 1.5A、低噪声、快速瞬态响应 LDO 稳压器
  • LTC3880 / LTC3880-1 - 具数字电源系统管理功能的双输出多相降压型 DC/DC 控制器
  • LTC4415 - 具可调电流限值的双通道 4A 理想二极管
  • LTC6101 - 采用 SOT-23 封装的高电压、高压侧电流检测放大器
  • LTC6655 - 0.25ppm 噪声、低漂移、精准基准系列
  • LT8610 - 具 2.5μA 静态电流的 42V、2.5A 同步降压型稳压器
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