TPS61089: Operating efficiency at light load conditions?

Hello,

I am planning to use the TPS61089 for stepping-up voltage of a single Li-ion cell (3V from to 4.2V input range) to 5V.

The load current fall under 500mA, which I feel would be the light load condition for TPS61089 as its Iout is 2A.

In the design created using WEBENCH, the efficiency curves were upward of 85% at around 100mA load,

that efficiency is acceptable for me.

I have only few questions;

Q1. Dose the TPS61089 runs efficiently at light load conditions?

Q2. If not, what could be suitable replacement boost converter with higher efficiency at light load operation?

Thanks and regards!