LTC1044A
LTC1044A
PRODUCTION12V CMOS Voltage Converter
- Part Models
- 6
- 1ku List Price
- Starting From $4.12
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Overview
- 1.5V to 12V Operating Supply Voltage Range
- 13V Absolute Maximum Rating
- 200μA Maximum No Load Supply Current at 5V
- Boost Pin (Pin 1) for Higher Switching Frequency
- 97% Minimum Open Circuit Voltage Conversion Efficiency
- 95% Minimum Power Conversion Efficiency
- IS = 1.5μA with 5V Supply When OSC Pin = 0V or V+
- High Voltage Upgrade to ICL7660/LTC1044
The LTC1044A is a monolithic CMOS switched-capacitor voltage converter. It plugs in for ICL7660/LTC1044 in applications where higher input voltage (up to 12V) is needed. The LTC1044A provides several conversion functions without using inductors. The input voltage can be inverted (VOUT = –VIN), doubled (VOUT = 2VIN), divided (VOUT = VIN/2) or multiplied (VOUT = ±nVIN).
To optimize performance in specific applications, a boost function is available to raise the internal oscillator frequency by a factor of seven. Smaller external capacitors can be used in higher frequency operation to save board space. The internal oscillator can also be disabled to save power. The supply current drops to 1.5μA at 5V input when the OSC pin is tied to GND or V+.
Applications
- Conversion of 10V to ±10V Supplies
- Conversion of 5V to ±5V Supplies
- Precise Voltage Division: VOUT = VIN/2 ±20ppm
- Voltage Multiplication: VOUT = ±nVIN
- Supply Splitter: VOUT = ±VS/2
- Automotive Applications
- Battery Systems with 9V Wall Adapters/Chargers
Documentation
Data Sheet 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 |
|---|---|---|---|
| LTC1044ACN8#PBF | 8-Lead PDIP (Narrow 0.3 Inch) | ||
| LTC1044ACS8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1044ACS8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1044AIN8#PBF | 8-Lead PDIP (Narrow 0.3 Inch) | ||
| LTC1044AIS8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1044AIS8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 8, 2024 - 24_0234 Migrating Bottom Trace Code Marking to Top Side Laser Marking for PDIP Package |
||
| LTC1044ACN8#PBF | PRODUCTION | |
| LTC1044AIN8#PBF | PRODUCTION | |
|
Oct 11, 2022 - 22_0241 Epoxy Change from Henkel 8290 to 8290A for PDIP Package |
||
| LTC1044ACN8#PBF | PRODUCTION | |
| LTC1044AIN8#PBF | PRODUCTION | |
|
Aug 6, 2022 - 22_0172 Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG] |
||
| LTC1044ACN8#PBF | PRODUCTION | |
| LTC1044AIN8#PBF | PRODUCTION | |
|
Dec 14, 2023 - 22_0255 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2) |
||
| LTC1044ACS8#PBF | PRODUCTION | |
| LTC1044ACS8#TRPBF | PRODUCTION | |
| LTC1044AIS8#PBF | PRODUCTION | |
| LTC1044AIS8#TRPBF | PRODUCTION | |
|
Jun 16, 2021 - 21_0026 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM |
||
| LTC1044ACS8#PBF | PRODUCTION | |
| LTC1044ACS8#TRPBF | PRODUCTION | |
| LTC1044AIS8#PBF | PRODUCTION | |
| LTC1044AIS8#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Charge Pumps 1 | ||
| LTC3261 | RECOMMENDED FOR NEW DESIGNS | High Voltage, Low Quiescent Current Inverting Charge Pump |
Tools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LTC1044
- LTC1044A
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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