MCP1825S - Electronic component Microchip - Free user manual and instructions
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| Product Type | Low Dropout (LDO) Voltage Regulator |
| Brand | Microchip Technology |
| Model | MCP1825S |
| Category | Electronic Component |
| Input Voltage Range | 2.1V - 6.0V |
| Output Voltage Range | 0.8V - 5.0V (adjustable) |
| Maximum Output Current | 500 mA |
| Dropout Voltage | 210 mV typical at 500 mA |
| Quiescent Current | 120 µA typical |
| Shutdown Current | 0.1 µA (typical) |
| Package Type | SOT-223-3 |
| Number of Pins | 3 |
| Mounting Type | Surface Mount (SMD) |
| Operating Temperature Range | -40°C to +125°C |
| Recommended Output Capacitor | 1 µF ceramic (low ESR) |
| Load Regulation | 0.5% typical |
| Line Regulation | 0.1% typical |
| Features | Short-circuit protection, thermal shutdown, low quiescent current |
| Maintenance | No regular maintenance required; keep contacts clean and dry |
| Safety | Do not exceed input voltage limits; observe polarity and proper soldering |
| Spare Parts & Repairability | No user-serviceable parts; replace the component if faulty |
| General Information | Refer to the official datasheet for detailed specifications and application circuits |
Frequently Asked Questions - MCP1825S Microchip
What is the MCP1825S?
The MCP1825S is a 500mA low dropout (LDO) voltage regulator from Microchip Technology, designed for applications requiring a stable output voltage from a varying input supply.
How do I set the output voltage?
The output voltage is adjustable using an external resistor divider. Connect the feedback pin to the midpoint of a resistor network between output and ground to set the desired voltage within the range of 0.8V to 5.0V.
What is the maximum input voltage?
The absolute maximum input voltage is 6.5V, but the recommended operating input range is 2.1V to 6.0V. Exceeding these limits can damage the device.
What output capacitors are recommended?
A 1µF ceramic capacitor on the output is recommended for stability. In general, use a capacitor with low ESR to ensure proper operation.
Can the MCP1825S be shut down?
Yes, the MCP1825S features a shutdown pin that, when pulled low, turns off the output and reduces quiescent current to 0.1µA typical.
What protection features does it have?
It includes short-circuit protection, thermal shutdown, and overcurrent protection to safeguard both the regulator and the load.
What is the dropout voltage?
The typical dropout voltage is 210mV at 500mA output current. This means the input must be at least 210mV above the output voltage to maintain regulation.
What is the operating temperature range?
The device operates over a junction temperature range of -40°C to +125°C, making it suitable for industrial applications.
How much current can it deliver?
It can deliver a continuous output current of 500mA with proper thermal design.
What package is available?
The MCP1825S is offered in a SOT-223-3 package, which is a surface-mount package suitable for PCB assembly.
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USER MANUAL MCP1825S Microchip
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Product information
Brand : Microchip
Model : MCP1825S
Category : Electronic component