MAX829
MAX829
PRODUCTIONSwitched-Capacitor Voltage Inverters
Inductorless Power Supply for Pager LCD
- Part Models
- 2
- 1ku List Price
- Starting From $3.27
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Overview
- 5-Pin SOT23-5 Package
- 95% Voltage Conversion Efficiency
- Inverts Input Supply Voltage
- 60µA Quiescent Current (MAX828)
- +1.5V to +5.5V Input Voltage Range
- Requires Only Two Capacitors
- 25mA Output Current
The ultra-small MAX828/MAX829 monolithic, CMOS charge-pump inverters accept input voltages ranging from +1.5V to +5.5V. The MAX828 operates at 12kHz, and the MAX829 operates at 35kHz. Their high efficiency (greater than 90% over most of the load-current range) and low operating current (60µA for the MAX828) make these devices ideal for both battery-powered and board-level voltage-conversion applications.
The MAX828/MAX829 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. Both parts come in a 5-pin SOT23-5 package and can deliver 25mA with a voltage drop of 500mV.
For a similar device with logic-controlled shutdown, refer to the MAX1719/MAX1720/MAX1721. For applications requiring more power, the MAX860 delivers up to 50mA with a voltage drop of 600mV, in a space-saving µMAX® package.
Applications
- Battery-Powered Applications
- Cell Phones
- Handy-Terminals, PDAs
- Medical Instruments
- Small LCD Panels
Documentation
Data Sheet 1
Design Note 1
Technical Articles 3
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 |
|---|---|---|---|
| MAX829EUK+ | SOT_23 | ||
| MAX829EUK+T | SOT_23 |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 2, 2023 - 2361E WAFER FAB |
||
| MAX829EUK+ | PRODUCTION | |
| MAX829EUK+T | PRODUCTION | |
|
Feb 4, 2015 - 1341_CANCELLATION ASSEMBLY |
||
| MAX829EUK+ | PRODUCTION | |
| MAX829EUK+T | PRODUCTION | |
|
Apr 20, 2026 - 2571C PIN/ERRATA |
||
| MAX829EUK+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 | ||
| MAX860 | PRODUCTION | 50mA, Frequency-Selectable, Switched-Capacitor Voltage Converters |
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