LM2594HVM-ADJ Description
The LM2594HVM-ADJ regulator is a monolithic integrated circuit that provides all the active functions for a step-down (buck) switching regulator, capable of driving a 0.5-A load with excellent line and load regulation. The LM2594HVM-ADJ is available in fixed output voltages of 3.3 V, 5 V, 12 V, and an adjustable output version, and is packaged in an 8-pin PDIP and an 8-pin surface-mount SOIC package. Requiring a minimum number of external components, these regulators are simple to use and feature internal frequency compensation, a fixed-frequency oscillator, and improved line and load regulation specifications.
LM2594HVM-ADJ Features
3.3-V, 5-V, 12-V, and adjustable output versions
Adjustable version output voltage range: 1.2 V to 37 V (57-V for the HV version), ±4% maximum overline and load conditions
Available in 8-pin surface-mount SOIC and 8-pin PDIP packages
Ensured 0.5-A output current
Input voltage range up to 60 V
Requires only four external components
150-kHz fixed-frequency internal oscillator
TTL shutdown capability
Low power standby mode, IQ typically 85 μA
High efficiency
Uses readily-available standard inductors
Thermal shutdown and current-limit protection
LM2594HVM-ADJ Applications
Simple high-efficiency step-down (buck) regulator
Efficient pre-regulator for linear regulators
On-card switching regulators
Positive-to-negative convertor
