ISL85403 Description
DATASHEET ISL85403 2.5A Regulator with Integrated High-side MOSFET for Synchronous Buck or Boost Buck Converter FN8631 Rev.4.00 Sep 28, 2020 The ISL85403 is a 40V, 2.5A synchronous buck or boost buck controller with an integrated high-side MOSFET and low-side driver. In Buck mode, the ISL85403 supports a wide input range of 3V to 40V. In Boost-Buck mode, the input range can be extended down to 2.5V and output...
ISL85403 Key Features
- Buck mode: input voltage range 3V to 40V (See “Input Voltage” for more details)
- Boost mode expands operating input voltage lower than 2.5V (See “Input Voltage” for more details)
- Selectable Forced PWM mode or PFM mode
- 300µA IC quiescent current (PFM, no load); 180µA input
- Less than 5µA (MAX) shutdown input current (IC disabled)
- Operational topologies
- Synchronous buck
- Non-synchronous buck
- Two-stage boost buck
- Non-inverting single inductor buck boost