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MP20042 1.2-5V High PSRR 200mA Linear Regulator QFN8
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pMPS MP20042 — High PSRR 200mA Linear Regulator, 1.2-5V input, 200 mA output, QFN8./p
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MP20042 1.2-5V High PSRR 200mA Linear Regulator QFN8
The MPS MP20042 is a High PSRR 200mA Linear Regulator. It operates from a 1.2 V to 5 V input and is rated for 200 mA. It is supplied in a QFN8 package.
The MP20042 is a dual-channel, micropower, low noise, low dropout and high PSRR linear regulator.
Key Specifications
| Part Number | MP20042 |
| Function | High PSRR 200mA Linear Regulator |
| Input Voltage | 1.2 V to 5 V |
| Current Rating | 200 mA |
| Package | QFN8 |
| Ordering Codes | MP20042 |
Features
- Two LDOs in a 2mmx2mm QFN8 Package
- Up to 200mA Output Current (Per Channel)
- Dual Enable Pins Control Each Output
- 72dB PSRR at 1kHz
- 11μVRMS Low Noise Output
- 110mV Dropout at 100mA Load
- Very Fast Transient Responses with Small Output Capacitor
- Current Limiting and Thermal Protection
Typical Application Circuit
Applications
- Cellular Phones
- Battery-powered Equipment
- Laptop, Notebook, and Palmtop Computers
- Hand-held Equipment
- Wireless LAN "MPS" and "The Future of Analog IC Technology" are Registered Trademarks of Monolithic Power Systems, Inc.
Design Notes
- Dissipation is (VIN − VOUT) × IOUT. Check it against the package thermal resistance at the real ambient temperature before committing to the full rated current.
- Some low-noise LDOs require a minimum output capacitor ESR for loop stability — read the stability section before substituting a ceramic part.
- Add a bypass capacitor on the reference pin where provided; it sets the output noise floor.
- PSRR falls as the input-to-output differential shrinks, so headroom matters at low VIN.
Common Questions
What input voltage does the MP20042 support?
1.2 V to 5 V. The rated output is 200 mA.
Which package and ordering codes apply to the MP20042?
QFN8; order codes include MP20042.
What are the defining features of the MP20042?
Two LDOs in a 2mmx2mm QFN8 Package Up to 200mA Output Current (Per Channel)
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