LM3100MH

TEXAS INSTRUMENTS  LM3100MH  直流-直流开关降压逐步递减稳压器, 可调, 4.5V-36V输入, 800mV-7V输出, 1.5A输出, HTSSOP-20

The is a SIMPLE SWITCHER® synchronously rectified Buck Converter features all functions needed to implement a highly efficient, buck regulator capable of supplying 1.5A to loads with voltages as low as 0.8V. Dual 40V N-channel synchronous MOSFET switches allow for low external component thus reducing complexity and minimizing board space. The LM3100 is designed to work exceptionally well with ceramic and other very low ESR output capacitors. The constant ON-time COT regulation scheme requires no loop compensation, results in fast load transient response and simplifies circuit implementation. Through the use of a unique design the regulator does not rely on output capacitor ESR for stability, as do most other COT regulators. The operating frequency remains nearly constant with line and load variations due to the inverse relationship between the input voltage and the on-time. The operating frequency can be externally programmed up to 1MHz.

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Low component count and small solution size

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No loop compensation required

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Ultrafast transient response

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Stable with ceramic and other low ESR capacitors

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Maximum duty cycle limited during startup

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Valley current limit

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Thermal shutdown

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Precision internal reference for adjustable output voltage down to 0.8V

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0.8V Voltage reference with ±1.5% accuracy

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Green product and no Sb/Br