ISL78083ARZ-T集成电路（IC）的特殊用途稳压器规格书PDF中文资料

特性 Features

• VIN operating range from 4.0V to 42V

○ Start range: 4.5V to 42V

• Fixed switching frequency: 2.2MHz with optional

pseudo-random spread spectrum

• Three synchronous bucks with internal

compensation and one LDO

○ Buck1 output range: 3.3V to 5.05V

○ Buck2 output range: 1.0V to 3.3V

○ Buck3 output range: 1.0V to 3.3V

○ LDO4 output range: 2.8V to 3.4V

• Output UV/OV thresholds, OTP: ±4, ±6, ±8,

±12

• OTP power up/down sequence and delay

• Optional output discharge on Buck2, Buck3, and

LDO4

• Current at VIN input under shutdown: <1μA typical

• Protection features

○ Input voltage UVLO

○ Output OV/UV

○ Positive and negative current limits on bucks

○ Overcurrent protection on internal and output

LDOs

○ Fail-safe controller

○ CRC of OTP registers

○ OTP hiccup or latch-off fault response