LTC1514
量产Step-Up/Step-Down Switched Capacitor DC/DC Converters with Low-Battery Comparator
- 产品模型
- 8
概述
- 3.3V or 5V Output Voltages
- 2V to 10V Input Voltage Range
- Up to 50mA Output Current
- Only Three External Capacitors Required
- Soft Start Limits Inrush Current at Turn-On
- Low Operating Current: 60µA
- Low Shutdown Current: 10µA
- Shutdown Disconnects Load from VIN
- Short-Circuit and Overtemperature Protected
- 650kHz Switching Frequency
- Low-Battery Comparator Active in Shutdown
- Available in SO-8 Package
The LTC1514-3.3/LTC1514-5 are micropower switched capacitor DC/DC converters that produce a regulated output voltage by either stepping up or stepping down the input voltage. Output voltage is fixed at either 3.3V (LTC1514-3.3) or 5V (LTC1514-5) by an internal resistor divider.
A unique architecture allows the parts to accommodate a wide input voltage range (2V to 10V) while maintaining +4% regulation. Additional circuitry prevents excessive inrush current and output voltage ripple when large VIN to VOUT differentials are present.
An internal uncommitted comparator is kept active in shutdown. The comparator has an open-drain output for flexible interfacing.
The parts are short-circuit and overtemperature protected. Battery life is maximized by very low operating currents (ICC= 60µA typ, 10µA in shutdown). Both parts are available in an SO-8 package.
Applications
- Battery Operated Equipment
- Smart Card Readers
- Local Power Supplies
- Handheld Instruments
- Battery Backup Supplies
参考资料
数据手册 1
可靠性数据 1
应用笔记 1
设计笔记 1
ADI 始终高度重视提供符合最高质量和可靠性水平的产品。我们通过将质量和可靠性检查纳入产品和工艺设计的各个范围以及制造过程来实现这一目标。出货产品的“零缺陷”始终是我们的目标。查看我们的质量和可靠性计划和认证以了解更多信息。
| 产品型号 | 引脚/封装图-中文版 | 文档 | CAD 符号，脚注和 3D模型 |
|---|---|---|---|
| LTC1514CS8-3.3#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1514CS8-3.3#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1514CS8-5#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1514CS8-5#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1514IS8-3.3#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1514IS8-3.3#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1514IS8-5#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1514IS8-5#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) |
| 产品型号 | 产品生命周期 | PCN |
|---|---|---|
|
10月 24, 2024 - 24_0246 Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package |
||
| LTC1514CS8-3.3#PBF | 量产 | |
| LTC1514CS8-3.3#TRPBF | 量产 | |
| LTC1514CS8-5#PBF | 量产 | |
| LTC1514CS8-5#TRPBF | 量产 | |
| LTC1514IS8-3.3#PBF | 量产 | |
| LTC1514IS8-3.3#TRPBF | 量产 | |
| LTC1514IS8-5#PBF | 量产 | |
| LTC1514IS8-5#TRPBF | 量产 | |
|
10月 12, 2022 - 22_0255 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2) |
||
| LTC1514CS8-3.3#PBF | 量产 | |
| LTC1514CS8-3.3#TRPBF | 量产 | |
| LTC1514CS8-5#PBF | 量产 | |
| LTC1514CS8-5#TRPBF | 量产 | |
| LTC1514IS8-3.3#PBF | 量产 | |
| LTC1514IS8-3.3#TRPBF | 量产 | |
| LTC1514IS8-5#PBF | 量产 | |
| LTC1514IS8-5#TRPBF | 量产 | |
|
6月 16, 2021 - 21_0026 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM |
||
| LTC1514CS8-3.3#PBF | 量产 | |
| LTC1514CS8-3.3#TRPBF | 量产 | |
| LTC1514CS8-5#PBF | 量产 | |
| LTC1514CS8-5#TRPBF | 量产 | |
| LTC1514IS8-3.3#PBF | 量产 | |
| LTC1514IS8-3.3#TRPBF | 量产 | |
| LTC1514IS8-5#PBF | 量产 | |
| LTC1514IS8-5#TRPBF | 量产 | |
这是最新版本的数据手册
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LTspice
LTspice中提供以下器件型号：
- LTC1514-3.3
- LTC1514-5
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。
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