MAX16033
MAX16033
PRODUCTIONLow-Power Battery-Backup Circuits in Small µDFN Packages
Industry's Smallest Supervisors Offer Precision Power-Supply Monitoring with Battery Backup
- Part Models
- 6
- 1ku List Price
- Starting From $3.93
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Overview
- Low 1.2V Operating Supply Voltage
- Precision Monitoring of 5.0V, 3.3V, 3.0V, and 2.5V Power-Supply Voltages
- Independent Power-Fail Comparator
- Debounced Manual-Reset Input
- Watchdog Timer, 1.6s Timeout
- Battery-On Output Indicator
- Auxiliary User-Adjustable RESETIN
- Low 13µA Quiescent Supply Current
- Two Available Output Structures:
- Active-Low Push-Pull Reset
- Active-Low Open-Drain Reset
- Active-Low Reset Valid Down to 1.2V
- Power-Supply Transient Immunity
- 140ms (min) Reset Timeout Period
- Small 2mm x 2mm, 8-Pin and 10-Pin µDFN Packages
The MAX16033–MAX16040 supervisory circuits reduce the complexity and number of components required for power-supply monitoring and battery-control functions in microprocessor (µP) systems. The devices significantly improve system reliability and accuracy compared to other ICs or discrete components. The MAX16033–MAX16040 provide µP reset, backup-battery switchover, power-fail warning, watchdog, and chip-enable gating features.
The MAX16033–MAX16040 operate from supply voltages up to 5.5V. The factory-set reset threshold voltage ranges from 2.32V to 4.63V. The devices feature a manual-reset input (MAX16033/MAX16037), a watchdog timer input (MAX16034/MAX16038), a battery-on output (MAX16035/MAX16039), an auxiliary adjustable reset input (MAX16036/MAX16040), and chip-enable gating (MAX16033–MAX16036). Each device includes a power-fail comparator and offers an active-low push-pull reset or an active-low open-drain reset.
The MAX16033–MAX16040 are available in 2mm x 2mm, 8-pin or 10-pin µDFN packages and are fully specified from -40°C to +85°C.
Applications
- Portable/Battery-Powered Equipment
- POS Equipment
- Critical µP/µC Power Monitoring
- Set-Top Boxes
- Controllers
- Computers
- Fax Machines
- Industrial Control
- Real-Time Clocks
- Intelligent Instruments
Documentation
Data Sheet 1
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 |
|---|---|---|---|
| MAX16033LLB29+ | LFCSP | ||
| MAX16033LLB29+T | LFCSP | ||
| MAX16033PLB29+ | LFCSP | ||
| MAX16033PLB29+T | LFCSP | ||
| MAX16033PLB31+ | LFCSP | ||
| MAX16033PLB31+T | LFCSP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 20, 2026 - 2571D PIN/ERRATA |
||
| MAX16033LLB29+ | PRODUCTION | |
| MAX16033LLB29+T | PRODUCTION | |
| MAX16033PLB29+T | PRODUCTION | |
| MAX16033PLB31+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
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