Toshiba recommends a compact PCB layout with short traces and minimal vias to reduce parasitic inductance and capacitance. A 4-layer PCB with a solid ground plane is recommended. Additionally, the input and output capacitors should be placed close to the IC.
To ensure stability, the output voltage should be decoupled with a capacitor (typically 10uF to 22uF) with a low ESR (Equivalent Series Resistance). The capacitor should be placed close to the output pin and connected to a solid ground plane.
Although the datasheet specifies a maximum input voltage of 18V, it's recommended to limit the input voltage to 15V to ensure reliable operation and prevent damage to the IC.
While the RN1116 is rated for operation up to 125°C, it's essential to consider the derating of the output current and power dissipation at high temperatures. Consult the datasheet and application notes for guidance on thermal design and derating.
The power dissipation of RN1116 can be calculated using the formula: Pd = (Vin - Vout) x Iout + (Vin x Iq), where Vin is the input voltage, Vout is the output voltage, Iout is the output current, and Iq is the quiescent current. Ensure that the calculated power dissipation does not exceed the maximum rating.
RN1116,LF(CT datasheet
by Toshiba America Electronic Components
