The MIC4742 is a high efficiency dual PWM buck (step-down) regulator that provides dual 2A current output. The MIC4742 operates at 2MHz. A proprietary internal compensation technique allows a closed loop bandwidth of over 200kHz.
The low on-resistance internal P-channel MOSFET of the MIC4742 allows efficiencies over 92%, reduces external components count and eliminates the need for an expensive current sense resistor.
The MIC4742 operates from 2.9V to 5.5V input and the output can be adjusted down to 0.6V. The device can operate with a maximum duty cycle of 100% for use in low-dropout conditions.
The MIC4742 is available in ETSSOP-16 packages with a junction operating range from -40°C to +125°C.
Additional Features
2.9V to 5.5V supply voltage
2MHz PWM mode
2A Dual output
Greater than 92% efficiency
100% maximum duty cycle
Adjustable output voltage option down to 0.6V
Ultra-fast transient response
Ultra-small external components Stable with a 1µH inductor and a 4.7µF output capacitor
Fully integrated 2A MOSFET switches
Micro-power shutdown
Thermal shutdown and current limit protection
-40°C to +125°C junction temperature range
The MIC4742 is a high efficiency dual PWM buck (step-down) regulator that provides dual 2A current output. The MIC4742 operates at 2MHz. A proprietary internal compensation technique allows a closed loop bandwidth of over 200kHz.
The low on-resistance internal P-channel MOSFET of the MIC4742 allows efficiencies over 92%, reduces external components count and eliminates the need for an expensive current sense resistor.
The MIC4742 operates from 2.9V to 5.5V input and the output can be adjusted down to 0.6V. The device can operate with a maximum duty cycle of 100% for use in low-dropout conditions.
The MIC4742 is available in ETSSOP-16 packages with a junction operating range from -40°C to +125°C.
Additional Features
- 2.9V to 5.5V supply voltage
- 2MHz PWM mode
- 2A Dual output
- Greater than 92% efficiency
- 100% maximum duty cycle
- Adjustable output voltage option down to 0.6V
- Ultra-fast transient response
- Ultra-small external components Stable with a 1µH inductor and a 4.7µF output capacitor
- Fully integrated 2A MOSFET switches
- Micro-power shutdown
- Thermal shutdown and current limit protection
- -40°C to +125°C junction temperature range
