Texas Instruments LM22677
The LM22677 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 42V N-channel MOSFET switch capable of providing up to 5A of load current. The LM22677 also has built in thermal shutdown, and current limiting to protect against accidental overloads.FEATURES
Check for Samples: LM22677FEATURES
1●2 Wide Input Voltage Range: 4.5V to 42V
● Internally Compensated Voltage Mode Control
● Stable with low ESR Ceramic Capacitors
● 100 mΩ N-Channel MOSFET
● Output Voltage Options: – ADJ (Outputs as Low as 1.285V) – 5.0 (Output Fixed to 5V)
● ±1.5% Feedback Reference Accuracy
● 500 kHz Default Switching Frequency
● Adjustable Switching Frequency and Synchronization
● -40°C to 125°C Operating Junction Temperature Range
● Precision Enable Pin
● Integrated Boot-Strap Diode
● Integrated Soft-Start
● Fully WEBENCH® enabled
● LM22677-Q1 is an Automotive Grade Product that is AEC-Q100 Grade 1 Qualified (-40°C to +125°C Operating Junction Temperature) PACKAGE
● PFM (Exposed Pad)
APPLICATIONS
● Industrial Control● Telecom and Datacom Systems
● Embedded Systems
● Conversions from Standard 24V, 12V and 5V Input Rails
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.