LT1766 - 5.5V to 60V 1.5A, 200kHz Step-Down Switching Regulator

Supplied by
  1. Analog Devices Ltd

    LT1766 - 5.5V to 60V 1.5A, 200kHz Step-Down Switching Regulator
    The LT1766/LT1766-5 are 200kHz monolithic buck switching regulators that accept input voltages up to 60V. A high efficiency 1.5A, 0.2O switch is included on the die along with all the necessary oscillator, control and logic circuitry. A current mode control architecture delivers fast transient response and excellent loop stability. Special design techniques and a new high voltage process achieve high efficiency over a wide input range. Efficiency is maintained over a wide output current range by using the output to bias the circuitry and by utilising a supply boost capacitor to saturate the power switch. Patented circuitry maintains peak switch current over the full duty cycle range. A shutdown pin reduces supply current to 25ΜA and the device can be externally synchronized from 228kHz to 700kHz with logic-level inputs. The LT1766/LT1766-5 are available in a 16-pin fused-lead SSOP package or a TSSOP package with exposed backside for improved thermal performance.