Product Summary
The LM2674-5.0 is a monolithic integrated circuit built with a LMDMOS process. It provides all the active functions for a step-down (buck) switching regulator, capable of driving a 500 mA load current with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5.0V, 12V, and an adjustable output version.
Parametrics
Absolute maximum ratings: (1)Supply Voltage: 45V; (2)ON/OFF Pin Voltage: -0.1V≤ VSH≤ 6V; (3)Switch Voltage to Ground: -1V; (4)Boost Pin Voltage: VSW + 8V; (5)Feedback Pin Voltage: -0.3V≤ VFB≤ 14V; (6)ESD Susceptibility Human Body Model: 2 kV; (7)Power Dissipation: Internally Limited; (8)Storage Temperature Range: -65℃ to +150℃; (9)Maximum Junction Temperature +150℃.
Features
Features: (1)Efficiency up to 96%; (2)Available in SO-8, 8-pin DIP and LLP packages; (3)Computer Design Software LM267X Made Simple; (4)Simple and easy to design with; (5)Requires only 5 external components; (6)Uses readily available standard inductors; (7)3.3V, 5.0V, 12V, and adjustable output versions; (8)Adjustable version output voltage range: 1.21V to 37V; (9)±1.5% max output voltage tolerance over line and load conditions; (10)Guaranteed 500mA output load current; (11)0.25Ω DMOS Output Switch; (12)Wide input voltage range: 8V to 40V; (13)260 kHz fixed frequency internal oscillator; (14)TTL shutdown capability, low power standby mode; (15)Thermal shutdown and current limit protection.
Diagrams
LM26 |
Other |
Data Sheet |
Negotiable |
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LM26001 |
Other |
Data Sheet |
Negotiable |
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LM26001BMH/NOPB |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers |
Data Sheet |
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LM26001MXA |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers |
Data Sheet |
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LM26001MXA/NOPB |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers |
Data Sheet |
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LM26001MXAX |
National Semiconductor (TI) |
Switching Converters, Regulators & Controllers |
Data Sheet |
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