The MIC23303 is a high efficiency 4MHz 3A synchronous buck regulator with HyperLight Load® mode, Power Good output indicator, and programmable soft-start. HyperLight Load® provides very high efficiency at light loads and ultra-fast transient response which makes the MIC23303 perfectly suited for supplying processor core voltages. An additional benefit of this proprietary architecture is very low output ripple voltage throughout the entire load range with the use of small output capacitors. The tiny 3mm x 3mm DFN package saves precious board space and requires only six external components.
The MIC23303 is designed for use with a very small inductor, down to 0.33µH, and an output capacitor as small as 10µF that enables a total solution size, less than 1mm in height.
The MIC23303 has a very low quiescent current of 24µA and can achieve a peak efficiency of 93% in continuous conduction mode. In discontinuous conduction mode, the MIC23303 can achieve 80% efficiency at 1mA.
The MIC23303 is available in 12-pin 3mm x 3mm DFN package with an operating junction temperature range from -40°C to +125°C.
Additional Features
Input voltage: 2.7V to 5.5V
Output voltage: down to 0.65V
Up to 3A output current
Up to 93% peak efficiency
80% typical efficiency at 1mA
Power Good output
Programmable soft-start
24µA typical quiescent current
4MHz PWM operation in continuous mode
Ultra fast transient response
Low ripple output voltage
35mVpp ripple in HyperLight Load® mode
5mV output voltage ripple in full PWM mode
Fully integrated MOSFET switches
0.01µA shutdown current
Thermal-shutdown and current-limit protection
12-pin 3mm x 3mm DFN
-40°C to +125°C junction temperature range
The MIC23303 is a high efficiency 4MHz 3A synchronous buck regulator with HyperLight Load® mode, Power Good output indicator, and programmable soft-start. HyperLight Load® provides very high efficiency at light loads and ultra-fast transient response which makes the MIC23303 perfectly suited for supplying processor core voltages. An additional benefit of this proprietary architecture is very low output ripple voltage throughout the entire load range with the use of small output capacitors. The tiny 3mm x 3mm DFN package saves precious board space and requires only six external components.
The MIC23303 is designed for use with a very small inductor, down to 0.33µH, and an output capacitor as small as 10µF that enables a total solution size, less than 1mm in height.
The MIC23303 has a very low quiescent current of 24µA and can achieve a peak efficiency of 93% in continuous conduction mode. In discontinuous conduction mode, the MIC23303 can achieve 80% efficiency at 1mA.
The MIC23303 is available in 12-pin 3mm x 3mm DFN package with an operating junction temperature range from -40°C to +125°C.
Additional Features
- Input voltage: 2.7V to 5.5V
- Output voltage: down to 0.65V
- Up to 3A output current
- Up to 93% peak efficiency
- 80% typical efficiency at 1mA
- Power Good output
- Programmable soft-start
- 24µA typical quiescent current
- 4MHz PWM operation in continuous mode
- Ultra fast transient response
- Low ripple output voltage
- 35mVpp ripple in HyperLight Load® mode
- 5mV output voltage ripple in full PWM mode
- Fully integrated MOSFET switches
- 0.01µA shutdown current
- Thermal-shutdown and current-limit protection
- 12-pin 3mm x 3mm DFN
- -40°C to +125°C junction temperature range
