The LM3102/-Q1 SIMPLE
SWTCHER® 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/-Q1 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/-Q1 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.