LT1614
PRODUCTIONInverting 600kHz Switching Regulator
- Part Models
- 8
- 1ku List Price
- Starting From $4.40
Overview
- Better Regulation Than a Charge Pump
- 0.1Ω Effective Output Impedance
- ±5V at 200mA from a 5V Input
- 600kHz Fixed Frequency Operation
- Operates with VIN as Low as 1V
- 1mA Quiescent Current
- Low Shutdown Current: 10µA
- Low-Battery Detector
- Low VCESAT Switch: 295mV at 500mA
The LT1614 is a fixed frequency, inverting mode switching regulator that operates from an input voltage as low as 1V. Utilizing a low noise topology, the LT1614 can generate a negative output down to −24V from a 1V to 5V input. Fixed frequency switching ensures a clean output free from low frequency noise. The device contains a low-battery detector with a 200mV reference and shuts down to less than 10µA. No load quiescent current of the LT1614 is 1mA and the internal NPN power switch handles a 500mA current with a voltage drop of just 295mV.
High frequency switching enables the use of small inductors and capacitors. Ceramic capacitors can be used in many applications, eliminating the need for bulky tantalum types.
The LT1614 is available in 8-lead MSOP or SO packages.
Applications
- MR Head Bias
- LCD Bias
- GaAs FET Bias
- Positive-to-Negative Conversion
Documentation
Data Sheet 1
Application Note 1
Technical Articles 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LT1614CMS8#PBF | 8-Lead MSOP | ||
| LT1614CMS8#TRPBF | 8-Lead MSOP | ||
| LT1614CS8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1614CS8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1614IMS8#PBF | 8-Lead MSOP | ||
| LT1614IMS8#TRPBF | 8-Lead MSOP | ||
| LT1614IS8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1614IS8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 5, 2024 - 24_0003 Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2) |
||
| LT1614CMS8#PBF | PRODUCTION | |
| LT1614CMS8#TRPBF | PRODUCTION | |
| LT1614IMS8#PBF | PRODUCTION | |
| LT1614IMS8#TRPBF | PRODUCTION | |
|
Feb 3, 2020 - 20_0128 Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC |
||
| LT1614CMS8#PBF | PRODUCTION | |
| LT1614CMS8#TRPBF | PRODUCTION | |
| LT1614IMS8#PBF | PRODUCTION | |
| LT1614IMS8#TRPBF | PRODUCTION | |
|
Dec 14, 2023 - 22_0255 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2) |
||
| LT1614CS8#PBF | PRODUCTION | |
| LT1614CS8#TRPBF | PRODUCTION | |
| LT1614IS8#PBF | PRODUCTION | |
| LT1614IS8#TRPBF | PRODUCTION | |
|
Jun 11, 2021 - 21_0060 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM |
||
| LT1614CS8#PBF | PRODUCTION | |
| LT1614CS8#TRPBF | PRODUCTION | |
| LT1614IS8#PBF | PRODUCTION | |
| LT1614IS8#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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LTspice
Models for the following parts are available in LTspice:
- LT1614
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
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