Next, I need to understand what a schematic top typically includes. It's a high-level overview of the circuit, showing major components like transistors, resistors, capacitors, and their connections. It might also show the power supply inputs and outputs.
| Symbol | Part | Typical Value | Function | |--------|------|---------------|----------| | | Upper Divider Resistor | 2.2 kΩ – 5 kΩ | Works with R3 to set Vout = Vref × (1 + R2/R3). Vref for LAD402P ≈ 1.2 V. | | R3 | Lower Divider Resistor | 1 kΩ – 2.2 kΩ | Together with R2 defines the output voltage. | | C2 | Compensation Capacitor | 0.1 µF – 1 µF | Placed from the feedback node (junction of R2/R3) to ground; adds phase margin and reduces output ripple. | | R4 (optional) | Load‑Adjust Resistor | 10 Ω – 100 Ω | Small resistor in series with the load to improve transient response; not required in the reference design. | lad402p schematic top
On these motherboards, top-side schematics generally show the 19V DC-in and the 3V/5V standby rails . Next, I need to understand what a schematic
When engineers refer to the of the LAD402P, they mean two things: | Symbol | Part | Typical Value |
NC-1: Terminal 21 ----| (closed) ---- Terminal 22 NC-2: Terminal 31 ----| (closed) ---- Terminal 32