MAX1811ESA

MAX1811ESA is a Maxim Integrated (now Analog Devices) IC. The ESA suffix designates a specific variant/packaging, so the exact function and specs depend on the datasheet. Without it, I can’t give precise details.
If you want a concise intro, I can tailor it once you share the datasheet link or tell me the device’s role (e.g., regulator/PMIC, ADC/DAC, buffer/translator, level shifter). Alternatively, I can provide a generic overview of a typical MAX1811-class device (purpose, common features, and typical applications) if you’re just looking for a quick context. Which would you prefer?

I don’t have the exact MAX1811ESA datasheet memorized. Here are the typical features you’d expect from MAX1811-series buck controller devices (ESA variant):
- Buck regulator/controller (external MOSFET for power stage)
- Wide input voltage range (suitable for automotive/industrial)
- Adjustable output via external resistor divider
- Fixed-frequency PWM with current-mode control for fast transient response
- Enable/Shutdown input and undervoltage lockout
- Soft-start to limit inrush and output overshoot
- Overcurrent/short-circuit protection (often with hiccup)
- Overtemperature/thermal shutdown protection
- Status indicators/power-good option (variant dependent)
- Low quiescent current and compact, RoHS-compliant ESA package
For exact, variant-specific features and electrical specs, please share the datasheet or confirm the exact MAX1811ESA document you’re using.

Pin count: 8 pins (SO-8/MSOP-8 package variants).
Function: Buck switching-regulator controller (PWM) that drives external power MOSFETs to regulate output voltage in DC-DC applications.

Manufacturer: Maxim Integrated (Maxim Integrated Products), now part of Analog Devices, Inc.
What kind of company: A semiconductor company specializing in analog and mixed-signal integrated circuits; an American-based design/manufacturing firm whose product lines include ICs for power management, data conversion, and signal processing.

Common applications for MAX1811ESA include:
- Power management and voltage regulation for microprocessors, FPGAs/ASICs, and other digital cores
- Supply sequencing and reset generation
- Brown-out/overvoltage protection and fault monitoring
- Battery-powered/mobile devices
- Automotive and industrial electronics
- Telecom and data-center equipment needing reliable voltage supervision and control

8-pin SOIC (Small-Outline IC) package; lead-free variant.