Texas Instruments LM22673
The LM22673 switching regulator provides all of the functions necessary to implement an efficient high voltage step-down (buck) regulator using a minimum of external components. This easy to use regulator incorporates a 42 V N-channel MOSFET switch capable of providing up to 3 A of load current. The LM22673 device also has built-in thermal shutdown, and current limiting to protect against accidental overloads.FEATURES
1FEATURES
●1 Wide Input Voltage Range: 4.5 V to 42 V● Internally Compensated Voltage Mode Control
● Stable with Low ESR Ceramic Capacitors
● 120 mΩ N-Channel MOSFET PFM Package
● 100 mΩ N-Channel MOSFET SO PowerPAD Package
● Output Voltage Options: -ADJ (Outputs as Low as 1.285 V) -5.0 (Output Fixed to 5 V)
● ±1.5% Feedback Reference Accuracy
● Switching Frequency of 500 kHz
● –40°C to 125°C Operating Junction Temperature Range
● Adjustable Soft-Start
● Adjustable Current Limit
● Integrated Boot-Strap Diode
● Fully Webench® Enabled
● LM22673-Q1 is an Automotive Grade Product that is AEC-Q100 Grade 1 Qualified (–40°C to +125°C Junction Temperature)
● SO PowerPAD (Exposed Pad)
● PFM (Exposed Pad) 2
APPLICATIONS
● Industrial Control● Telecom and Datacom Systems
● Embedded Systems
● Conversions from Standard 24 V, 12 V and 5 V Input Rails 3
DESCRIPTION
Excellent line and load regulation along with high efficiency (> 90%) are featured. Voltage mode control offers short minimum on-time, allowing the widest ratio between input and output voltages.