LTC3621 / LTC3621-2 - 具 3.5μA 静态电流的 17V、1A、同步降压型稳压器
LTC®3621 / LTC3621-2 是一款高效率 17V、1A 同步单片式降压型稳压器。开关频率固定至 1MHz 或 2.25MHz 并具有 ±40% 的同步范围。稳压器具有超低的静态电流，并可在宽 VOUT 范围内实现高效率。
该降压型稳压器在 2.7V 至 17V 的输入电压范围内运作，并可在输送高达 1A 输出电流的同时提供一个介于 0.6V 和 VIN 之间的可调输出范围。这些器件还提供了一个用户可选模式输入，以使用户能对纹波噪声与轻负载时的效率作出权衡；突发模式操作可在轻负载条件下提供最高的效率，而脉冲跳跃模式则可提供最低的电压纹波。用户也可采用 MODE 引脚以使开关频率同步至外部时钟。
LTC3621 选项
特点
典型应用  | 应用
封装信息  |
| 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) * |
|---|---|---|---|---|
| LTC3621EDCB-2#PBF | 2x3 DFN-6 | E | $3.64 | |
| LTC3621EDCB-2#TRMPBF | 2x3 DFN-6 | E | $3.64 | $2.60 |
| LTC3621EDCB-2#TRPBF | 2x3 DFN-6 | E | $3.64 | $2.55 |
| LTC3621EDCB-23.3#PBF | 2x3 DFN-6 | E | $3.64 | |
| LTC3621EDCB-23.3#TRMPBF | 2x3 DFN-6 | E | $3.64 | $2.60 |
| LTC3621EDCB-23.3#TRPBF | 2x3 DFN-6 | E | $3.64 | $2.55 |
| LTC3621EDCB-25#PBF | 2x3 DFN-6 | E | $3.64 | |
| LTC3621EDCB-25#TRMPBF | 2x3 DFN-6 | E | $3.64 | $2.60 |
| LTC3621EDCB-25#TRPBF | 2x3 DFN-6 | E | $3.64 | $2.55 |
| LTC3621EDCB-3.3#PBF | 2x3 DFN-6 | E | $3.64 | |
| LTC3621EDCB-3.3#TRMPBF | 2x3 DFN-6 | E | $3.64 | $2.60 |
| LTC3621EDCB-3.3#TRPBF | 2x3 DFN-6 | E | $3.64 | $2.55 |
| LTC3621EDCB-5#PBF | 2x3 DFN-6 | E | $3.64 | |
| LTC3621EDCB-5#TRMPBF | 2x3 DFN-6 | E | $3.64 | $2.60 |
| LTC3621EDCB-5#TRPBF | 2x3 DFN-6 | E | $3.64 | $2.55 |
| LTC3621EDCB#PBF | 2x3 DFN-6 | E | $3.64 | |
| LTC3621EDCB#TRMPBF | 2x3 DFN-6 | E | $3.64 | $2.60 |
| LTC3621EDCB#TRPBF | 2x3 DFN-6 | E | $3.64 | $2.55 |
| LTC3621EMS8E-2#PBF | MS-8 | E | $3.64 | $2.55 |
| LTC3621EMS8E-2#TRPBF | MS-8 | E | $2.61 | |
| LTC3621EMS8E-23.3#PBF | MS-8 | E | $3.64 | $2.55 |
| LTC3621EMS8E-23.3#TRPBF | MS-8 | E | $2.61 | |
| LTC3621EMS8E-25#PBF | MS-8 | E | $3.64 | $2.55 |
| LTC3621EMS8E-25#TRPBF | MS-8 | E | $2.61 | |
| LTC3621EMS8E-3.3#PBF | MS-8 | E | $3.64 | $2.55 |
| LTC3621EMS8E-3.3#TRPBF | MS-8 | E | $2.61 | |
| LTC3621EMS8E-5#PBF | MS-8 | E | $3.64 | $2.55 |
| LTC3621EMS8E-5#TRPBF | MS-8 | E | $2.61 | |
| LTC3621EMS8E#PBF | MS-8 | E | $3.64 | $2.55 |
| LTC3621EMS8E#TRPBF | MS-8 | E | $2.61 | |
| LTC3621HMS8E-2#PBF | MS-8 | H | $4.37 | $3.06 |
| LTC3621HMS8E-2#TRPBF | MS-8 | H | $3.12 | |
| LTC3621HMS8E-23.3#PBF | MS-8 | H | $4.37 | $3.06 |
| LTC3621HMS8E-23.3#TRPBF | MS-8 | H | $3.12 | |
| LTC3621HMS8E-25#PBF | MS-8 | H | $4.37 | $3.06 |
| LTC3621HMS8E-25#TRPBF | MS-8 | H | $3.12 | |
| LTC3621HMS8E-3.3#PBF | MS-8 | H | $4.37 | $3.06 |
| LTC3621HMS8E-3.3#TRPBF | MS-8 | H | $3.12 | |
| LTC3621HMS8E-5#PBF | MS-8 | H | $4.37 | $3.06 |
| LTC3621HMS8E-5#TRPBF | MS-8 | H | $3.12 | |
| LTC3621HMS8E#PBF | MS-8 | H | $4.37 | $3.06 |
| LTC3621HMS8E#TRPBF | MS-8 | H | $3.12 | |
| LTC3621IDCB-2#PBF | 2x3 DFN-6 | I | $4.02 | |
| LTC3621IDCB-2#TRMPBF | 2x3 DFN-6 | I | $4.02 | $2.86 |
| LTC3621IDCB-2#TRPBF | 2x3 DFN-6 | I | $4.02 | $2.81 |
| LTC3621IDCB-23.3#PBF | 2x3 DFN-6 | I | $4.02 | |
| LTC3621IDCB-23.3#TRMPBF | 2x3 DFN-6 | I | $4.02 | $2.86 |
| LTC3621IDCB-23.3#TRPBF | 2x3 DFN-6 | I | $4.02 | $2.81 |
| LTC3621IDCB-25#PBF | 2x3 DFN-6 | I | $4.02 | |
| LTC3621IDCB-25#TRMPBF | 2x3 DFN-6 | I | $4.02 | $2.86 |
| LTC3621IDCB-25#TRPBF | 2x3 DFN-6 | I | $4.02 | $2.81 |
| LTC3621IDCB-3.3#PBF | 2x3 DFN-6 | I | $4.02 | |
| LTC3621IDCB-3.3#TRMPBF | 2x3 DFN-6 | I | $4.02 | $2.86 |
| LTC3621IDCB-3.3#TRPBF | 2x3 DFN-6 | I | $4.02 | $2.81 |
| LTC3621IDCB-5#PBF | 2x3 DFN-6 | I | $4.02 | |
| LTC3621IDCB-5#TRMPBF | 2x3 DFN-6 | I | $4.02 | $2.86 |
| LTC3621IDCB-5#TRPBF | 2x3 DFN-6 | I | $4.02 | $2.81 |
| LTC3621IDCB#PBF | 2x3 DFN-6 | I | $4.02 | |
| LTC3621IDCB#TRMPBF | 2x3 DFN-6 | I | $4.02 | $2.86 |
| LTC3621IDCB#TRPBF | 2x3 DFN-6 | I | $4.02 | $2.81 |
| LTC3621IMS8E-2#PBF | MS-8 | I | $4.02 | $2.81 |
| LTC3621IMS8E-2#TRPBF | MS-8 | I | $2.87 | |
| LTC3621IMS8E-23.3#PBF | MS-8 | I | $4.02 | $2.81 |
| LTC3621IMS8E-23.3#TRPBF | MS-8 | I | $2.87 | |
| LTC3621IMS8E-25#PBF | MS-8 | I | $4.02 | $2.81 |
| LTC3621IMS8E-25#TRPBF | MS-8 | I | $2.87 | |
| LTC3621IMS8E-3.3#PBF | MS-8 | I | $4.02 | $2.81 |
| LTC3621IMS8E-3.3#TRPBF | MS-8 | I | $2.87 | |
| LTC3621IMS8E-5#PBF | MS-8 | I | $4.02 | $2.81 |
| LTC3621IMS8E-5#TRPBF | MS-8 | I | $2.87 | |
| LTC3621IMS8E#PBF | MS-8 | I | $4.02 | $2.81 |
| LTC3621IMS8E#TRPBF | MS-8 | I | $2.87 |
演示电路板
| 器件型号 | 描述 | 价格 |
|---|---|---|
| DC1863A | LTC3621 Demo Board | 1MHz, 2.7V ≤ VIN ≤ 17V, Vout = 1.2V/1.8V/2.5V/3.3V/5V/Adj @ 1A | $100.00 |
| DC1864A | LTC3621-2 Demo Board | 2.25MHz, 2.7V ≤ VIN ≤ 17V, Vout = 1.2V/1.8V/2.5V/3.3V/5V/Adj @ 1A | $100.00 |
- LTC3621 Package Drawing LTC3621
- R539 - Reliability Data
- 17V, 2.25MHz, Synchronous Step-Down Regulator Delivers 1A & Requires Only 3.5µA of Quiescent Current
- LTC3621 Footprints and Symbols
- LTC3621 Demo Circuit - 17V, 1A, 1MHz Monolithic Synchronous Buck Regulator (2.7-17V to 1.2V @ 1A)
- LTC3621-2 Demo Circuit - 17V, 1A, 2.25MHz Monolithic Synchronous Buck Regulator (2.7-17V to 1.2V @ 1A)
- LTC3621 Project - 1A, 17V, 2.25MHz Buck Regulator (2.7-17V to 2.5V @ 1A)
- LTC3621 Project - 1A, 17V, 2.25MHz Buck Regulator (5-17V to 5V @ 1A)
