DC1293A
Analog Devices Inc.
The LT1939 is a current mode PWM step-down DC/DC converter with an internal 2.3A switch. The wide input range of 3V to 25V makes the LT1939 suitable for regulating power from a wide variety of sources, including automotive batteries, industrial supplies and unregulated wall adapters.Resistor-programmable 250kHz to 2.2MHz frequency range and synchronization capability enable optimization between efficiency and external component size. Cycle-by-cycle current limit, frequency foldback and thermal shutdown provide protection against a shorted output. The soft-start feature controls the ramp rate of the output voltage, eliminating input current surge during start-up, and also provides output tracking.The LT1939 contains an internal NPN transistor with feedback control which can be con?gured as a linear regulator or as a linear regulator controller.The LT1939?s low current shutdown mode (<12?A) enables easy power management in battery-powered systems.Applications Automotive Battery Regulation Industrial Control Wall Transformer Regulation Distributed Power Regulation
$147.12 - $152.26
Distributors
| Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1000 | 10000 | Purchase | ||
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DigiKey | DC1293A-ND | 0 | 1 | $146.60 | $146.60 | $146.60 | $146.60 | $146.60 | $146.60 | Buy |
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Analog Devices Inc | DC1293A | $147.12 | $147.12 | $147.12 | $147.12 | $147.12 | $147.12 | Buy | ||
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Arrow North American Components | DC1293A | 0 | 1 | $145.31 | $143.86 | $140.99 | $139.58 | $135.44 | $134.08 | Buy |
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Mouser Electronics | 584-DC1293A | 0 | 1 | $152.26 | $152.26 | $152.26 | $152.26 | $152.26 | $152.26 | Buy |