Ultra-Low Noise, High PSRR
150mA Linear Regulator in 0.8x0.8mm WLCSP
The Future of Analog IC Technology
The MP20049 is an ultra-low noise, low-dropout,
high PSRR linear regulator. Fixed output
voltage options are available between 1.2V to
4.5V with 1% accuracy while operating from a
+2.3V to +6V input. It is designed to deliver up
to 150mA of load current. Dropout voltage is
only 60mV at full load.
The MP20049 uses an internal PMOS as the
pass element, which consumes 50μA supply
current at no load condition and is suitable for
battery-power devices. New innovative design
techniques enable the MP20049 to achieve
ultra-low output voltage noise of only 16µVRMS
without a noise bypass capacitor.
The MP20049 is designed and optimized to
work with low value, low cost ceramic
capacitors. It typically requires only 1µF of
output capacitance for stability with any load.
The MP20049 features current limit and over
temperature protection and is available in a tiny
4-ball 0.8x0.8mm WLCSP package.
• Linear Regulator in 0.8x0.8mm WLCSP
• Input Voltage Range: 2.3V to 6V
• Up to 150mA Output Current
• 16µVRMS Output Noise (100Hz to 100kHz)
with No Bypass Capacitor required
• High PSRR:
• 78dB @1kHz
• 55dB @100kHz
• Low Dropout:
• 50mV @120mA Load
• 60mV @150mA Load
• Stable with 1µF Ceramic Capacitor for Any
• Very Fast Line/Load Transient Response
• Current Limit and Thermal Protection
• Cellular Mobile Phones
• Digital Cameras
• Handheld and Battery-powered Equipment
• Wireless LAN
• Post DC-to-DC Regulation
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Products, Quality Assurance page.
“MPS” and “The Future of Analog IC Technology” are registered trademarks of
Monolithic Power Systems, Inc.
MP20049 Rev. 1.11
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
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