LTC3203
Info: : 量产
searchIcon
cartIcon

LTC3203

500mA 输出电流低噪声 双模式升压型充电泵

更多 showmore-icon

Info: : 量产 tooltip
Info: : 量产 tooltip
产品详情
产品模型 8
特性
  • 可选双模式运作:1:1.5 或 1:2
  • 高输出电流:高达 500mA
  • 低噪声恒定频率 (1MHz/0.9MHz) 操作*
  • VIN 范围:2.7V 至 5.5V
  • 可调输出电压(LTC3203/LTC3203B)
  • 用户可选固定输出电压:4.5V 或 5V (LTC3203-1 和 LTC3203B-1)
  • 静态电流 IQ 约为 120µA 的突发模式 (Burst Mode®) 操作(LTC3203/LTC3203-1)
  • 在所有负载条件下均以恒定频率操作 (LTC3203B/ LTC3203B-1)
  • 软起动功能限制启动时的浪涌电流
  • 短路/热保护
  • 停机时负载与输入断接
  • 停机电流:< 1µA
  • 采用 10 引脚 (3mm x 3mm) DFN 封装
更多细节
show more Icon

LTC®3203/LTC3203-1/LTC3203B/LTC3203B-1 是低噪声、高效率充电泵 DC/DC 转换器,可从 2.7V 至 5.5V 输入来驱动高达 500mA 的负载。低外部组件数目 (两个跨接电容器和 VIN 及 VOUT 的两个旁路电容器) 使 LTC3203 系列成为小型、电池供电应用的理想选择。

内置软起动电路可在启动期间防止出现过大的浪涌电流。高开关频率允许采用小的外部电容器。LTC3203/LTC3203-1可在轻负载条件下执行自动突发模式 (Burst Mode) 操作,实现低电源电流,而 LTC3203B/ LTC3203B-1 则采用恒定频率操作,实现低输入噪声。

LTC3203-1/LTC3203B-1 具有 4.5V 或 5V 的用户可选的固定输出电压,用于给 LED 或逻辑电路供电。LTC3203/LTC3203B 的 FB 引脚可被用来设置输出电压。这几款器件均具有短路和过热保护功能,并采用扁平的 3mm x 3mm DFN 封装。

Applications

  • 用于蜂窝电话/PDA 的高电流 LED 背光照明电源
  • 蜂窝电话相机灯电源
  • 通用 3.3V 或锂离子电池至 5V 电源
  • 便携式 USB ON THE GO (OTG) 设备
产品模型 8

产品技术资料帮助

close icon

ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许,也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。

参考资料

参考资料

产品型号 引脚/封装图-中文版 文档 CAD 符号,脚注和 3D模型
LTC3203BEDD#PBF
  • HTML
  • HTML
LTC3203BEDD#TRPBF
  • HTML
  • HTML
LTC3203BEDD-1#PBF
  • HTML
  • HTML
LTC3203BEDD-1#TRPBF
  • HTML
  • HTML
LTC3203EDD#PBF
  • HTML
  • HTML
LTC3203EDD#TRPBF
  • HTML
  • HTML
LTC3203EDD-1#PBF
  • HTML
  • HTML
LTC3203EDD-1#TRPBF
  • HTML
  • HTML
软件和型号相关生态系统

软件和型号相关生态系统

评估套件

评估套件 3

reference details image

DC863A-B

LTC3203-1 Demo Board | Regulated Boost Charge Pump, 2.7V ≤ VIN ≤ 5.5V, VOUT = 4.5V or 5V @ Up to 500mA

zoom

DC863A-B

LTC3203-1 Demo Board | Regulated Boost Charge Pump, 2.7V ≤ VIN ≤ 5.5V, VOUT = 4.5V or 5V @ Up to 500mA

LTC3203-1 Demo Board | Regulated Boost Charge Pump, 2.7V ≤ VIN ≤ 5.5V, VOUT = 4.5V or 5V @ Up to 500mA

产品详情

Demonstration circuit 863 is a high efficiency regulated boost charge pump converter that exercises the 500mA low noise LTC3203 in the 3mm x 3mm DFN package. It comes with three assembly versions, DC863A-A (3.3V output), DC863A-B (4.5V or 5V output) and DC863A-C (4.5V or 5V output), featuring the LTC3203B, LTC3203-1, and LTC3203B-1 respectively. The input voltage range is from 2.7V to 5.5V. The output current can reach up to 500mA with an input voltage above 2.9V for a 4.5V output, above 3.1V for a 5V output and over the full input range for a 3.3V output. By choosing the proper operation modes, the DC863A circuit optimizes conversion efficiencies and maintains the maximum output current at each output voltage.


Additionally, DC863A-B features Automatic Burst Mode operation at light load to achieve low supply current, whereas DC863A-A and DC863A-C operate in constant frequency mode to achieve low noise at the input. The built-in soft-start prevents excessive inrush current at start-up, and short-circuit current limit/thermal protection help the part survive a continuous short-circuit.

reference details image

DC863A-A

LTC3203B Demo Board | Regulated Boost Charge Pump, 2.7V ≤ VIN ≤ 4V, VOUT = 3.3V @ Up to 500mA

zoom

DC863A-A

LTC3203B Demo Board | Regulated Boost Charge Pump, 2.7V ≤ VIN ≤ 4V, VOUT = 3.3V @ Up to 500mA

LTC3203B Demo Board | Regulated Boost Charge Pump, 2.7V ≤ VIN ≤ 4V, VOUT = 3.3V @ Up to 500mA

产品详情

Demonstration circuit 863 is a high efficiency regulated boost charge pump converter that exercises the 500mA low noise LTC3203 in the 3mm x 3mm DFN package. It comes with three assembly versions, DC863A-A (3.3V output), DC863A-B (4.5V or 5V output) and DC863A-C (4.5V or 5V output), featuring the LTC3203B, LTC3203-1, and LTC3203B-1 respectively. The input voltage range is from 2.7V to 5.5V. The output current can reach up to 500mA with an input voltage above 2.9V for a 4.5V output, above 3.1V for a 5V output and over the full input range for a 3.3V output. By choosing the proper operation modes, the DC863A circuit optimizes conversion efficiencies and maintains the maximum output current at each output voltage.


Additionally, DC863A-B features Automatic Burst Mode operation at light load to achieve low supply current, whereas DC863A-A and DC863A-C operate in constant frequency mode to achieve low noise at the input. The built-in soft-start prevents excessive inrush current at start-up, and short-circuit current limit/thermal protection help the part survive a continuous short-circuit.

reference details image

DC863A-C

LTC3203B-1 Demo Board | Regulated Boost Charge Pump, 2.7V ≤ VIN ≤ 5.5V, VOUT = 4.5V or 5V @ Up to 500mA

zoom

DC863A-C

LTC3203B-1 Demo Board | Regulated Boost Charge Pump, 2.7V ≤ VIN ≤ 5.5V, VOUT = 4.5V or 5V @ Up to 500mA

LTC3203B-1 Demo Board | Regulated Boost Charge Pump, 2.7V ≤ VIN ≤ 5.5V, VOUT = 4.5V or 5V @ Up to 500mA

产品详情

Demonstration circuit 863 is a high efficiency regulated boost charge pump converter that exercises the 500mA low noise LTC3203 in the 3mm x 3mm DFN package. It comes with three assembly versions, DC863A-A (3.3V output), DC863A-B (4.5V or 5V output) and DC863A-C (4.5V or 5V output), featuring the LTC3203B, LTC3203-1, and LTC3203B-1 respectively. The input voltage range is from 2.7V to 5.5V. The output current can reach up to 500mA with an input voltage above 2.9V for a 4.5V output, above 3.1V for a 5V output and over the full input range for a 3.3V output. By choosing the proper operation modes, the DC863A circuit optimizes conversion efficiencies and maintains the maximum output current at each output voltage.


Additionally, DC863A-B features Automatic Burst Mode operation at light load to achieve low supply current, whereas DC863A-A and DC863A-C operate in constant frequency mode to achieve low noise at the input. The built-in soft-start prevents excessive inrush current at start-up, and short-circuit current limit/thermal protection help the part survive a continuous short-circuit.

工具和仿真

工具及仿真模型 1

LTspice®是一款强大高效的免费仿真软件、原理图采集和波形观测器,为改善模拟电路的仿真提供增强功能和模型。

启动此部分的现成LTspice演示电路:

1步:下载并在计算机上安装LTspice

2步:单击下面的链接,下载演示电路。

3步:如果在单击以下链接之后LTspice未自动打开,可通过右击该链接并选择“目标另存为”来运行该仿真。将文件保存到计算机之后,请启动LTspice并从“文件”菜单中选择“打开”来打开演示电路。

参考电路

参考电路 1

DK-DEV-3CLS200N Dev Kit

zoomopens a dialog

altera-cyclone-iii-ls-fpga-development-kit

altera-cyclone-iii-ls-fpga-development-kit

参考设计

tooltip Info:参考设计

特性和优点

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
查看参考设计详情 external link
最新评论

最新评论

需要发起讨论吗? 没有关于 ltc3203的相关讨论?是否需要发起讨论?
在论坛上发起讨论

最新浏览