MAX1818
MAX1818
PRODUCTION500mA, Low-Dropout Linear Regulator in SOT23
- Part Models
- 10
- 1ku List Price
- Starting From $1.74
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Overview
- Guaranteed 500mA Output Current
- Low 120mV Dropout at 500mA
- ±1% Output Voltage Accuracy
- Preset at 1.5V, 1.8V, 2.0V, 2.5V, 3.3V, 5V
- Adjustable from 1.25V to 5.0V
- Power OK Output
- Low 125µA Ground Current
- 0.1µA Shutdown Current
- Thermal Overload Protection
- Output Current Limit
- Tiny 800mW 6-Pin SOT23 Package
The MAX1818 low-dropout linear regulator operates from a +2.5V to +5.5V supply and delivers a guaranteed 500mA load current with low 120mV dropout. The high-accuracy (±1%) output voltage is preset at an internally trimmed voltage (see Selector Guide in the full data sheet) or can be adjusted from 1.25V to 5.0V with an external resistive divider.
An internal PMOS pass transistor allows the low 125µA supply current to remain independent of load, making this device ideal for portable battery-operated equipment such as personal digital assistants (PDAs), cellular phones, cordless phones, base stations, and notebook computers.
Other features include an active-low open-drain reset output that indicates when the output is out of regulation, a 0.1µA shutdown, short-circuit protection, and thermal shutdown protection. The device is available in a miniature 800mW 6-pin SOT23 package.
Applications
- Cell Phones/Cordless Phones
- Docking Stations
- Notebook Computers
- Palmtop Computers
- PDAs and Other Handheld Devices
- USB Hubs
- Wireless Base Stations
Documentation
Data Sheet 1
Design 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 |
|---|---|---|---|
| MAX1818EUT15+ | SOT_23 | ||
| MAX1818EUT15+T | SOT_23 | ||
| MAX1818EUT18+ | SOT_23 | ||
| MAX1818EUT18+T | SOT_23 | ||
| MAX1818EUT25+ | SOT_23 | ||
| MAX1818EUT25+T | SOT_23 | ||
| MAX1818EUT33+ | SOT_23 | ||
| MAX1818EUT33+T | SOT_23 | ||
| MAX1818EUT50+ | SOT_23 | ||
| MAX1818EUT50+T | SOT_23 |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 20, 2026 - 2571C PIN/ERRATA |
||
| MAX1818EUT15+ | PRODUCTION | |
| MAX1818EUT15+T | PRODUCTION | |
| MAX1818EUT18+ | PRODUCTION | |
| MAX1818EUT18+T | PRODUCTION | |
| MAX1818EUT25+ | PRODUCTION | |
| MAX1818EUT25+T | PRODUCTION | |
| MAX1818EUT33+ | PRODUCTION | |
| MAX1818EUT33+T | PRODUCTION | |
| MAX1818EUT50+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareEvaluation Kits
Evaluation Kit for the MAX1818EUT15, MAX1818EUT18, MAX1818EUT20, MAX1818EUT25, MAX1818EUT33, MAX1818EUT50
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