Features

Low RDS(ON) for internal switches (top/bottom)

230mΩ/170mΩ, 1.0A

2.5-5.5V input voltage range

40μA typical quiescent current

High light load efficiency

High switching frequency 1.5MHz minimizes

the external components

Internal soft start limits the inrush current

Output discharge resistor with 50Ω

100% dropout operation

Reliable no latch off output voltage

protection

Green package:

SOT23-5, DFN-6 is pin compatible

Applications

Portable Navigation Device

Set Top Box

USB Dongle

Media Player

Smart phone

Descriptions

The DIO6100B is high-efficiency, high frequency

synchronous step-down DC-DC regulator ICs

capable of delivering up to 1A output currents.

The DIO6100B family operate over a wide input

voltage range from 2.5V to 5.5V and integrate

main switch and synchronous switch with very

low RDS(ON) to minimize the conduction loss.

Low output voltage ripple and small external

inductor and capacitor sizes are achieved with

greater than 1.5MHz switching frequency.