The LM3102 Synchronously Rectified Buck Converter features all required functions to
implement a highly efficient and cost-effective buck regulator. The device can supply 2.5 A to
loads with an output voltage as low as 0.8 V. Dual N-channel synchronous MOSFET switches allow a
low component count, thus reducing complexity and minimizing board size.
Different from most other COT regulators, the LM3102 does not rely on output capacitor
ESR for stability, and is designed to work exceptionally well with ceramic and other very low-ESR
output capacitors. The device requires no loop compensation, results in a fast load transient
response and simple circuit implementation. The operating frequency remains nearly constant with
line variations due to the inverse relationship between the input voltage and the ON-time. The
operating frequency can be externally programmed up to
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1 MHz. Protection features include VCC undervoltage lockout (UVLO),
output overvoltage protection, thermal shutdown, and gate drive UVLO. The LM3102 is available in
the thermally enhanced HTSSOP-20 package, and LM3102 is also available in a DSBGA low-profile
chip-scale package with reduced output current.