The Future of Analog IC Technology
The MP20045 is a low-dropout linear regulator
supplies up to 1A current with 140mV dropout
voltage. The output voltage is set externally
which ranges from 1.5V to 5V by operating from
+2.5V to +5.5V input or can be preset internally
from 1.5V to 5V.
An internal PMOS pass element is used to
allow a low 110μA ground current, making the
MP20045 suitable for battery-power devices.
Other features include low-power shutdown,
short-circuit and thermal protection. The
MP20045 is available in 8-pin QFN (3mm x
3mm) and SOIC8E packages.
Low Noise, 1A
Up to 1A Output Current
Low 140mV Dropout at 1A
Low 110μA Ground Current
Fixed Output Versions Ranging from 1.5V to
5V and Adjustable Versions
Open Drain Power-Good Status Output
13μVRMS Low Noise Output
56dB PSRR at 1kHz
Current Limiting and Thermal Protection
3mm×3mm QFN8 and SOIC8E Packages
PDA and Palmtop Computers
All MPS parts are lead-free, halogen free, and adhere to the RoHS directive. For
MPS green status, please visit MPS website under Quality Assurance. “MPS”
and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
PG MP20045 FB
PG MP20045 FB
VOUT =1.5 (1+ RR12)Volts
MP20045 Rev. 1.1
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