ISL78235
ISL78235 is 5A Automotive Synchronous Buck Regulator manufactured by Renesas.
features a 1ms Power-Good (PG) timer at power-up.
When in shutdown, the ISL78235 discharges the output capacitor through an internal 100Ω soft-stop switch. Other features include internal fixed or adjustable soft-start and internal/external pensation.
The ISL78235 is available in a 3mmx3mm 16 Ld Thin Quad Flat No-lead (TQFN) Pb-free package and in a 5mmx5mm 16 Ld Wettable Flank Quad Flat No-Lead (WFQFN) package with an exposed pad for improved thermal performance. The ISL78235 is rated to operate across the temperature range of -40°C to +105°C in the 3mmx3mm package and -40°C to +125°C in the 5mmx5mm package.
FN8713 Rev 8.01 Jul 15, 2022
Features
- 2.7V to 5.5V input voltage range
- 2MHz default switching frequency
- 100ns guaranteed phase minimum on time for wide output regulation
- Adjustable switching frequency from 500k Hz to 4MHz
- External synchronization from 1MHz to 4MHz
- Optional PFM mode for light-load efficiency improvement
- Very low ON-resistance HS/LS switches: 35mΩ/11mΩ
- Internal 1ms or adjustable external soft-start
- Soft-stop output discharge during disable
- OTP, OCP, output OVP, and input UVLO protections
- 1% reference accuracy over-temperature
- Up to 95% efficiency
- AEC-Q100 qualified
- mon pinout family allows migration from 3A to 5A without PCB change:
- ISL78233
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- -
- -
- . . . 3A
- ISL78234
- -
- -
- -
- . . . 4A
- ISL78235
- -
- -
- -
- . . . 5A
Applications
- DC/DC POL...