All trademarks are the property of their respective owners.
DescriptionThe LM3100MHX/NOPB Synchronously Rectified Buck Converter features all functions needed toimplement a highly efficient, cost effective buck regulator capable of supplying 1.5 A to loadswith voltages as low as 0.8 V. Dual 40 V N-Channel synchronous MOSFET switches allow for lowexternal component thus reducing complexity and minimizing board space. The LM3100MHX/NOPB is designed towork 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, andsimplifies circuit implementation. Through the use of a unique design the regulator does not relyon output capacitor ESR for stability, as do most other COT regulators. The operating frequencyremains nearly constant with line and load variations due to the inverse relationship between theinput voltage and the on-time. The operating frequency can be externally programmed up to 1 MHz.Protection features include VCC under-voltage lockout, thermal shutdown andgate drive under-voltage lockout. The part is available in a thermally enhanced HTSSOP-20package
Feature
- Input Voltage Range 4.5 Vto 36 V
- 1.5 A Output Current
- 0.8 V, ±1.5%Reference
- Integrated 40 V, Dual N-Channel Buck Synchronous Switches
- Low Component Count and Small Solution Size
- No LoopCompensation Required
- Ultra-Fast Transient Response
- StableWith Ceramic and Other Low ESR Capacitors
- Programmable Switching Frequency upto 1 MHz
- Max. Duty Cycle Limited During Start-Up
- ValleyCurrent Limit
- Precision Internal Reference for Adjustable Output Voltage Downto 0.8 V
- Thermal Shutdown
- Thermally Enhanced HTSSOP-20Package
All trademarks are the property of their respective owners.
DescriptionThe LM3100 Synchronously Rectified Buck Converter features all functions needed toimplement a highly efficient, cost effective buck regulator capable of supplying 1.5 A to loadswith voltages as low as 0.8 V. Dual 40 V N-Channel synchronous MOSFET switches allow for lowexternal component thus reducing complexity and minimizing board space. The LM3100 is designed towork 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, andsimplifies circuit implementation. Through the use of a unique design the regulator does not relyon output capacitor ESR for stability, as do most other COT regulators. The operating frequencyremains nearly constant with line and load variations due to the inverse relationship between theinput voltage and the on-time. The operating frequency can be externally programmed up to 1 MHz.Protection features include VCC under-voltage lockout, thermal shutdown andgate drive under-voltage lockout. The part is available in a thermally enhanced HTSSOP-20package
