Description
Buck DC/DC Converter + Low Noise LDO
The MB39C022 is a 2 channels power supply IC.It consists of one channel Buck DC/DC Converter and one channel LDO regulator.The DC/DC converter has fast transient response with current mode control topology.Moreover, the integrated LDO provides an auxiliary output supply for noise sensitive circuit.
Features
- Power supply voltage range
: 2.5 V to 5.5 V.
- For Buck DC/DC included SW FET (CH1) : output 0.8 V to 4.5 V, 600 mA Max DC.
- For LDO (CH2)
: output 3.30 V (MB39C022G) 300 mA Max DC : output 2.85 V (MB39C022J) 300 mA Max DC : output 1.80 V (MB39C022L) 300 mA Max DC : output 1.20 V (MB39C022N) 300 mA Max DC.
- Error amplifier threshold voltage
: 0.3 V ± (2.5 %) (CH1).
- Fast line transient response with current mode topology (CH1).
- PFM mode at light load current wi.
MB39C022G-Cypress.pdf