Adding Components
Thought for 44 sec
When selecting the 1 µF X7R 0805 capacitor for VOUT on the ME6211C33M5G-N, consider:
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Stability and ESR
- The datasheet requires CIN/COUT ≥ 1 µF, ceramic X5R/X7R dielectric, ESR ≤ 1 Ω for loop stability.
- X7R maintains capacitance over –55 °C to +125 °C, minimizing output ripple under load transients.
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Voltage rating
- Choose a voltage rating ≥ 1.5× your max input (e.g. 16 V or higher) to ensure derating and reliability.
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Footprint
- 0805 offers a good balance of capacitance density and PCB assembly ease; ensure it sits as close as possible to the regulator pins.
Component comparisons:
Table
| Part | Voltage Rating | Tolerance | Typical ESR | Notes |
|---|---|---|---|---|
| C2012X7R1C105K125AA | 16 V | ±10 % | ≤ 0.5 Ω | Murata, widely used in power rails |
| 1 µF 0805 Capacitor | 35 V | ±10 % | ≤ 0.7 Ω | Higher voltage margin, general purpose |
| CC0805KKX7R8BB105 | 25 V | ±10 % | ≤ 0.6 Ω | TDK, good balance of cost and performance |
Place your chosen cap right at the regulator’s VOUT pin to minimize trace inductance.
Add Murata cap
Parallel HF bypass
Select VIN input cap
Placement distance
