The circuit is an integrated point of load synchronous buck regulator with a 5V input and a 1.2V/2.5A output. The device uses emulated current mode control, making it simple to create a flat impedance output. Easily accessible 0805 chip size components make it easy to customize or experiment with different component values. This is a fully self-contained demo board using USB input power and an on-board resistive load.
Supported Measurements
| TEST | SIGNAL INJECTORS NEEDED |
| 2-port output impedance | J2102A two SMA cables (optional two P2130A or J2130A) |
| Load Step | J2111A or J2150A and J2130A or P2130A SMA cable |
| Ripple and Noise | J2130A or P2130A SMA cable |
| Turn on overshoot | Scope with probe or SMA cable |
| PSRR | J2120A or J2111A and two voltage probes |
| Input Impedance | J2120A voltage and current probe |
| Bode Plot | J2100A or J2101A two voltage probes |