(Hong Kong)
Product Summary
The LM22672MRX-ADJ is a regulator. It is a monolithic integrated circuit which provides all of the active functions for a step-down (buck) switching regulator capable of driving up to 1A loads with excellent line and load regulation characteristics. High efficiency (>90%) is obtained through the use of a low ON-resistance N-channel MOSFET. The LM22672MRX-ADJ consists of a fixed 5V output and an adjustable version. The applications of the LM22672MRX-ADJ include Industrial Control, Telecom and Datacom Systems, Embedded Systems, Automotive Telematics and Body Electronics and Conversions from Standard 24V, 12V and 5V Input Rails.
Parametrics
LM22672MRX-ADJ absolute maximum ratings: (1)VIN to GND: 43V; (2)EN Pin Voltage: -0.5V to 6V; (3)SS, RT/SYNC Pin Voltage: -0.5V to 7V; (4)SW to GND: -5V to VIN; (5)BOOT Pin Voltage: VSW + 7V; (6)FB Pin Voltage: -0.5V to 7V; (7)Power Dissipation: Internally Limited; (8)Junction Temperature: 150℃; (9)Soldering Information, Infrared (5 sec.): 260℃; (10)ESD Rating: ±2 kV; (11)Storage Temperature Range: -65 to +150℃.
Features
LM22672MRX-ADJ features: (1)Wide input voltage range: 4.5V to 42V; (2)Internally compensated voltage mode control; (3)Stable with low ESR ceramic capacitors; (4)200 mΩ N-channel MOSFET; (5)Output voltage options: ADJ (outputs as low as 1.285V); 5.0 (output fixed to 5V); (6)±1.5% feedback reference accuracy; (7)Switching frequency of 500 kHz, adjustable between 200kHz and 1 MHz; (8)-40 to 125℃ operating junction temperature range; (9)Precision enable pin; (10)Integrated boot diode; (11)Adjustable soft-start; (12)Fully WEBENCH enabled; (13)Step-down and inverting buck-boost applications.
Diagrams
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
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 LM22672MRX-ADJ/NOPB |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers |
Data Sheet |
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