MAX8863
Low-Dropout, 120mA Linear Regulators
SOT23 Low-Noise, Low-Dropout Regulator
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Overview
Features and Benefits
- Low Cost
- Low, 55mV Dropout Voltage at 50mA IOUT
- Low, 68µA No-Load Supply Current
Low, 80µA Operating Supply Current (even in dropout) - Low, 350µVRMS Output Noise
- Miniature External Components
- Thermal Overload Protection
- Output Current Limit
- Reverse Battery Protection
- Dual Mode Operation: Fixed or Adjustable (1.25V to 6.5V) Output
- Low-Power Shutdown
Product Details
The MAX8863T/S/R and MAX8864T/S/R low-dropout linear regulators operate from a +2.5V to +6.5V input range and deliver up to 120mA. A PMOS pass transistor allows the low, 80µA supply current to remain independent of load, making these devices ideal for battery-operated portable equipment such as cellular phones, cordless phones, and modems.
The devices feature Dual Mode™ operation: their output voltage is preset (at 3.15V for the T versions, 2.84V for the S versions, or 2.80V for the R versions) or can be adjusted with an external resistor divider. Other features include low-power shutdown, short-circuit protection, thermal shutdown protection, and reverse battery protection. The MAX8864 also includes an auto-discharge function, which actively discharges the output voltage to ground when the device is placed in shutdown mode. Both devices come in a miniature 5-pin SOT23 package.
Applications
- Cellular Telephones
- Cordless Telephones
- Electronic Planners
- Hand-Held Instruments
- Modems
- Palmtop Computers
- PCMCIA Cards
- PCS Telephones
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Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
Design Resources
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| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| MAX8863REUK+ | Material Declaration | Reliability Data | 5-SOT_23-N/A | |
| MAX8863REUK+T | Material Declaration | Reliability Data | 5-SOT_23-N/A | |
| MAX8863SEUK+ | Material Declaration | Reliability Data | 5-SOT_23-N/A | |
| MAX8863SEUK+T | Material Declaration | Reliability Data | 5-SOT_23-N/A | |
| MAX8863TEUK+ | Material Declaration | Reliability Data | 5-SOT_23-N/A | |
| MAX8863TEUK+T | Material Declaration | Reliability Data | 5-SOT_23-N/A | |
| Wafer Fabrication Data |
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