Products
MAX1044
PRODUCTIONSwitched-Capacitor Voltage Converters
20mA Charge Pump with Industry Standard Pinout
- Part Models
- 9
- 1ku List Price
- Starting From $1.82
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Overview
- Miniature µMAX Package
- 1.5V to 10.0V Operating Supply Voltage Range
- 98% Typical Power-Conversion Efficiency
- Invert, Double, Divide, or Multiply Input Voltages
- BOOST Pin Increases Switching Frequencies (MAX1044)
- No-Load Supply Current: 200µA Max at 5V
- No External Diode Required for Higher-Voltage Operation
The MAX1044 and ICL7660 are monolithic, CMOS switched-capacitor voltage converters that invert, double, divide, or multiply a positive input voltage. They are pin compatible with the industry-standard ICL7660 and LTC1044. Operation is guaranteed from 1.5V to 10V with no external diode over the full temperature range. They deliver 10mA with a 0.5V output drop. The MAX1044 has a BOOST pin that raises the oscillator frequency above the audio band and reduces external capacitor size requirements.
The MAX1044/ICL7660 combine low quiescent current and high efficiency. Oscillator control circuitry and four power MOSFET switches are included on-chip. Applications include generating a -5V supply from a +5V logic supply to power analog circuitry. For applications requiring more power, the MAX660 delivers up to 100mA with a voltage drop of less than 0.65V.
Applications
- -5V Supply from +5V Logic Supply
- Data Acquisition
- EIA/TIA-232E and EIA/TIA-562 Power Supplies
- Handheld Instruments (PDAs, Palmtops)
- Op-Amp Power Supplies
- Panel Meters
- Personal Communications Equipment
- Portable Telephones
Documentation
Data Sheet 2
Design Note 2
Technical Articles 2
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 |
|---|---|---|---|
| MAX1044C/D+ | DIE | ||
| MAX1044CPA+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| MAX1044CSA+ | Small-Outline IC, Narrow (0.15in) | ||
| MAX1044CSA+T | Small-Outline IC, Narrow (0.15in) | ||
| MAX1044EPA+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| MAX1044ESA+ | Small-Outline IC, Narrow (0.15in) | ||
| MAX1044ESA+T | Small-Outline IC, Narrow (0.15in) | ||
| MAX1044MJA | Ceramic Dual-In-Line, Narrow (0.3in) | ||
| MAX1044MJA/883B | Ceramic Dual-In-Line, Narrow (0.3in) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 30, 2020 - 1702R2 ASSEMBLY |
||
| MAX1044CSA+ | PRODUCTION | |
| MAX1044CSA+T | PRODUCTION | |
| MAX1044ESA+ | PRODUCTION | |
| MAX1044ESA+T | PRODUCTION | |
|
Apr 20, 2026 - 2571A PIN/ERRATA |
||
| MAX1044CSA+T | PRODUCTION | |
| MAX1044ESA+T | 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 | ||
| MAX828 | PRODUCTION | Switched-Capacitor Voltage Inverters |
Reference Designs
MAXREFDES38#: ECT/EPT Current Fault Sensor