Product Summary

The MAX629ESA+T is a low-power DC-DC converter. The MAX629ESA+T features an internal N-channel MOSFET switch and programmable current limiting. It is designed to supply positive or negative bias voltages up to ±28V from input voltages in the 0.8V to VOUT range, and can be configured for boost, flyback, and SEPIC topologies. The MAX629ESA+T current-limited pulse-frequency-modulation (PFM) control scheme provides high efficiency over a wide range of load conditions. An internal, 0.5A N-channel MOSFET switch reduces the total part count, and a high switching frequency (up to 300kHz) allows for tiny surface-mount magnetics. The MAX629ESA+T combination of low supply current, logic-controlled shutdown, small package, and tiny external components makes it an extremely compact and efficient high-voltage biasing solution that is ideal for battery-powered applications. The MAX629ESA+T is available in an 8-pin SO package.

Parametrics

MAX629ESA+T absolute maximum ratings: (1)VIN min: 2.7V; (2)VIN max: 5.5V; (3)Max.lout: ≥0.5A; (4)Max.lout: ≤0.5A.

Features

MAX629ESA+T features: (1) Internal, 500mA, 28V N-Channel Switch (No External FET Required) ; (2) Generates Positive or Negative Output Voltages ; (3) 80μA Supply Current ; (4) 1μA Max Shutdown Current ; (5) Up to 300kHz Switching Frequency ; (6) Adjustable Current Limit Allows Use of Small, Inexpensive Inductors ; (7) 8-Pin SO Package.

Diagrams

 MAX629ESA+T pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
MAX629ESA+T
MAX629ESA+T

Maxim Integrated Products

DC/DC Switching Converters 28V Boost/Invert DC/DC Converter

Data Sheet

0-2080: $2.06
2080-2500: $2.06
MAX629ESA+TG071
MAX629ESA+TG071

Maxim Integrated Products

DC/DC Switching Converters 28V Boost/Invert DC/DC Converter

Data Sheet

Negotiable