器件名称: LM3102MH
功能描述: SIMPLE SWITCHER
文件大小: 379.78KB 共18页
简 介:LM3102 SIMPLE SWITCHER Synchronous 1MHz 2.5A Step-Down Voltage Regulator
September 2007
LM3102 SIMPLE SWITCHER Synchronous 1MHz 2.5A Step-Down Voltage Regulator
General Description
The LM3102 Synchronously Rectified Buck Converter features all required functions to implement a highly efficient and cost effective buck regulator. It is capable of supplying 2.5A to loads with an output voltage as low as 0.8V. 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. It 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 1 MHz. Protection features include VCC under-voltage lock-out, output over-voltage protection, thermal shutdown, and gate drive under-voltage lock-out. The LM3102 is available in the thermally enhanced eTSSOP-20 package.
Features
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Low component count and small solution size Stable with ceramic and other low ESR capacitors No loop compensation required High efficiency at a light load by DCM operation Pre-bias startup Ultr……
