LM2576T-5.0

Step-Down Voltage Regulator, low power standby mode, 5V, TO220-5

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

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PartNumber:: LM2576T-5.0

Brand:: National Semiconductor - NS | Pack: TO | 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:LM2576T-5.0
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Product Summary

The LM2576T-5.0 is a Step-Down Voltage Regulator. The LM2576T-5.0 provides all the active funtions for a step-down switching regulator. The LM2576T-5.0 features an output voltage which is adjustable from 1.23V to 37V and is capable of driving a 3A load with excellent line and load regulation. The LM2576T-5.0 offers a high efficiency replacement for popular three-terminal adjustable linear regulators. The LM2576T-5.0 substantially reduces the size of the heat sink and in many cases no heat sink is required. Applications include simple high-efficiency step-down regulator, efficient pre-regulator for linear regulators, on-card switching regulators, positive to negative convert, isolated flyback converter using minimum number of external components and negetive boost converter.

Parametrics

LM2576T-5.0 absolute maximum ratings: (1)maximum supply voltage: 45V; (2) on/off pin input voltage:- 0.3V~40V; (3)output voltage to ground: -1V; (4) power dissipation: internally limited; (5)storage temperature range: 65℃~150℃; (6)lead temperature: 260℃; (7)maximum junction temperature: 150℃.

Features

LM2576T-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.