LR2125

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

5 of 8

www.unisonic.com.tw

QW-R102-038.I



APPLICATION INFORMATION

Input Capacitor

Value：

Larger than 1µF, at least a 1µF ceramic capacitor

Place：

Purpose and Advantage Description：

To prevent the input rail from dropping, this capacitor can provide surge current as while as the circuit’s stepping

load transients.

Output Capacitor

Value：

Larger than 2.2µF

Place：

Be placed at the load and near the GND pin very closely.

Purpose and Advantage Description：

Mainly make sure the circuit’s operating stability. And the large value capacitor also can reduce noise and improve

transient response. Additionally, it can affect power on issue.

)

OUT

V

0.1155

-

(0.55

87

=

OUT(max)

C



Maximum Output Capacitor’s Value (µF) and the Output Voltage (V)’s Value’s Relationship