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MP2009 1.5-4.5V, 120mA Linear Regulator
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pMPS MP2009 — Linear Regulator, 1.5-4.5V input, 120 mA output./p
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MP2009 1.5-4.5V, 120mA Linear Regulator
The MPS MP2009 is a Linear Regulator. It operates from a 1.5 V to 4.5 V input and is rated for 120 mA.
The MP2009 is an ultra low noise, low dropout linear regulator.
Key Specifications
| Part Number | MP2009 |
| Function | Linear Regulator |
| Input Voltage | 1.5 V to 4.5 V |
| Current Rating | 120 mA |
| Ordering Codes | MP2009 |
Features
- Space-Saving SC70 Package
- 16µVRMS Output Noise (100Hz to 30kHz) No Bypass Capacitor Required
- 78dB PSRR at 1kHz
- 120mV Dropout at 120mA Load
- Stable with 1µF Ceramic Capacitor for Any Load
- Low 50µA Ground Current
- Very Fast Line and Load Transient Response with Small Input and Output Capacitor
- Current Limit and Thermal Protection
Typical Application Circuit
Applications
- Cellular and Cordless Phones
- PDA and Palmtop Computers
- Digital Cameras
- Base Stations
- Wireless LANs
- Bluetooth Portable Radios and Accessories
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 MP2009 support?
1.5 V to 4.5 V. The rated output is 120 mA.
What are the defining features of the MP2009?
Space-Saving SC70 Package 16µVRMS Output Noise (100Hz to 30kHz) No Bypass Capacitor Required
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