LM2576S-5.0

Step-Down Voltage Regulator, 5V, 3A, SOT263

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Price:: US $0.40~0.80 / piece [Get Latest Price]

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	US $0.40~0.80

PartNumber:: LM2576S-5.0

Brand:: National Semiconductor - NS | Pack: SOT | D/C: 12+

Availability:: Supply Ability: 10000/Week Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

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Products Upload time: 2012-06-30

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Part Number:LM2576S-5.0
US $0.40 - 0.80
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Product Summary

The LM2576S-5.0 regulator is monolithic integrated circuit that provides all the active functions for a step-down(buck) switching regulator, capable of driving 3A load withexcellent line and load regulation. The LM2576S-5.0 is available in fixed output voltages of 3.3V, 5V, 12V, 15V, and anadjustable output version.Requiring a minimum number of external components, the LM2576S-5.0 is simple to use and include internal frequency compensation and a fixed-frequency oscillator. The LM2576S-5.0 offers a high-efficiency replacement forpopular three-terminal linear regulators. The LM2576S-5.0 substantially reduces the size of the heat sink, and in some cases no heat sink is required. A standard series of inductors optimized for use with LM2576S-5.0 is available from several different manufacturers. This feature greatly simplifies the design of switch-modepower supplies.

Parametrics

LM2576S-5.0 absolute maximum ratings: (1)maximum supply voltage: 45V; (2)output voltage to ground: -1V; (3) power dissipation: internally limited; (4)storage temperature range: 65℃~150℃; (5)maximum junction temperature: 150℃; (6) Lead Temperature: 260℃.

Features

LM2576S-5.0 features: (1)5V output, ±3% max over line and load conditions; (2)guaranteed 3A output current; (3)wide input voltage range, 7V to 40V; (4) requires 4 external components; (5)52kHz fixed frequency internal oscillator; (6)low power standby mode; (7) 80% efficency; (8) uses readily available standard inductors; (9)thermal shutdown and current limit protection; (10)100% electrical thermal limit burn-in.