MP20049
NOT RECOMMENDED FOR NEW DESIGNS
Ultra-Low Noise, High PSRR 150mA Linear Regulator in 0.8*0.8mm WLCSP
MP20049 continues to be in production for existing customers. Please consider this alternative for new designs:

MP2000
MP2000
Low Input Voltage 150mA Linear Regulator
Features & Benefits
- Operates with VIN = 1.35V
- Low 300mV Dropout at 150mA Output
- ±3% Accurate Output Voltage
- Fixed and Adjustable Output Voltage Option
- Better Than 0.001%/mA Load Regulation
- Stable With Low-ESR Output Capacitor
- Low 65μA Ground Current
- Internal Thermal Protection
- Current Limit Protection
- 7μA Typical Quiescent Current at Shutdown
… and many more!
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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 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.
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Features & Benefits
- 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 Load
- Very Fast Line/Load Transient Response
- Current Limit and Thermal Protection

Active Part Numbers:
MP20049DC-2.8-LF-P MP20049DC-2.8-LF-Z MP20049DC-2.8-LF MP20049DC-LF-P MP20049DC-LF-Z
Part numbers ending in P and Z are the same parts. P and Z only indicates reel size.
Meaning of P & Z
MP20049 Resources
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