MP20049 Datasheet, PDF (1/11 Pages) Monolithic Power Systems – Ultra-Low Noise, High PSRR 150mA Linear Regulator in 0.8x0.8mm WLCSP

MP20049
Ultra-Low Noise, High PSRR
150mA Linear Regulator in 0.8x0.8mm WLCSP
The Future of Analog IC Technology
DESCRIPTION
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 16µV_RMS
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.
FEATURES
• Linear Regulator in 0.8x0.8mm WLCSP
• Input Voltage Range: 2.3V to 6V
• Up to 150mA Output Current
• 16µV_RMS 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
Load
• Very Fast Line/Load Transient Response
• Current Limit and Thermal Protection
APPLICATIONS
• Cellular Mobile Phones
• Digital Cameras
• Handheld and Battery-powered Equipment
• Wireless LAN
• Post DC-to-DC Regulation
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
V_IN
VIN
VOUT
MP20049
EN
GND
V_OUT
MP20049 Rev. 1.1
www.MonolithicPower.com
1
10/22/2010
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