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258 pcs
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258 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The LM2677SD-5.0/NOPB from Texas Instruments is a high-efficiency, 5A step-down (buck) switching regulator designed for ease of use with off-the-shelf external components. This device operates with a wide input voltage range of 8V to 40V and provides a fixed 5V output voltage. It features a 100-mΩ DMOS output switch and an internal oscillator running at a fixed frequency of 260kHz.
Key features include up to 92% efficiency, ±2% maximum output tolerance over full line and load conditions, and a standby current of 50µA when switched off. The regulator also offers external sync clock capability for frequencies between 280kHz and 400kHz. It is housed in a 14-VSON (5x6) package with an exposed pad for enhanced thermal performance.
This regulator is suitable for applications requiring simple, high-efficiency step-down conversion, such as efficient system preregulators for linear voltage regulators, battery chargers, and regulators for communications and radio equipment. The design simplifies the creation of robust power supplies with minimal external components.
| Qty | Low | High |
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| 1+ | $3.39 | $3.39 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
8 V to 40 V.
Fixed 5 V output, capable of delivering 5 A.
-40°C to 125°C (junction temperature).
14-VSON with exposed pad, surface mount, 5x6mm size.
260 kHz, with external sync capability from 280 kHz to 400 kHz.
Up to 92% maximum.
50 µA when switched off.