The LMZ10503EXT SIMPLE
SWITCHER® power module is a complete, easy-to-use, DC-DC solution capable of driving up
to a 3-A load with exceptional power conversion efficiency, output voltage accuracy, line and load
regulation. The LMZ10503EXT is available in an innovative package that enhances thermal performance
and allows for hand or machine soldering.
The LMZ10503EXT can accept an input voltage rail between 2.95 V and 5.5 V, and can
deliver an adjustable and highly accurate output voltage as low as 0.8 V. 1-MHz fixed-frequency PWM
switching provides a predictable EMI characteristic. Two external compensation components can be
adjusted to set the fastest response time, while allowing the option to use ceramic or electrolytic
output capacitors. Externally programmable soft-start capacitor facilitates controlled start-up.
The LMZ10503EXT is a reliable and robust solution with the following features: lossless
cycle-by-cycle peak current limit to protect for over current or short-circuit fault, thermal
shutdown, input undervoltage lockout, and prebiased start-up. The LMZ10503EXT is also fully-enabled
for WEBENCH® and Power Designer
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