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MP20043 1.2-3.3V, 300mA Linear Regulator With Programmable Output Voltage and Output Discharge QFN8
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pMPS MP20043 — Linear Regulator With Programmable Output Voltage and Output Discharge, 1.2-3.3V input, 300 mA output, QFN8./p
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MP20043 1.2-3.3V, 300mA Linear Regulator With Programmable Output Voltage and Output Discharge QFN8
The MPS MP20043 is a Linear Regulator With Programmable Output Voltage and Output Discharge. It operates from a 1.2 V to 3.3 V input and is rated for 300 mA. It is supplied in a QFN8 package.
The MP20043 is a dual-channel, low noise, low dropout and high PSRR linear regulator with programmable output voltage.
Key Specifications
| Part Number | MP20043 |
| Function | Linear Regulator With Programmable Output Voltage and Output Discharge |
| Input Voltage | 1.2 V to 3.3 V |
| Current Rating | 300 mA |
| Package | QFN8 |
| Ordering Codes | MP20043 |
Features
- Programmable Output Voltage
- Up to 300mA Output Current (Each LDO)
- 60mV Dropout at 100mA Load
- Dual Shutdown Pins Control Each Output
- 75dB PSRR at 1kHz
- 7μVRMS Low Noise Output
- Current Limiting and Thermal Protection
- Short Circuit Protection
- Two LDOs in TQFN8 (2mm×2mm) Package
- Output Load Discharge when Disabled
Typical Application Circuit
Applications
- Cellular Phones
- Battery-powered Equipment
- Laptop, Notebook, and Palmtop Computers
- Hand-held Equipment
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 MP20043 support?
1.2 V to 3.3 V. The rated output is 300 mA.
Which package and ordering codes apply to the MP20043?
QFN8; order codes include MP20043.
What are the defining features of the MP20043?
Programmable Output Voltage Up to 300mA Output Current (Each LDO)
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