LM2575T-3.3

Step-Down Switching Regulator,Adjustable Output Voltage, -0.1A, TO220-5

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

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PartNumber:: LM2575T-3.3

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:LM2575T-3.3
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Product Summary

The LM2575T-3.3 is a Step-Down Switching Regulator. The LM2575T-3.3 provides all the active funtions for a step-down switching regulator. The LM2575T-3.3 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 LM2575T-3.3 offers a high efficiency replacement for popular three-terminal adjustable linear regulators. LM2575T-3.3 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

LM2575T-3.3 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℃; (7) minimum ESD rating: 2kV.

Features

LM2575T-3.3 features: (1)3.3V, 5V, 12V, 15V, and adjustable output versions; (2)Adjustable version output voltage range,1.23V to 37V (57V for HV version) ±4% max overline and load conditions; (3)Guaranteed 3A output current; (4)Wide input voltage range, 40V up to 60V forHV version; (5)Requires only 4 external components; (6)52 kHz fixed frequency internal oscillator; (7)TTL shutdown capability, low power standby mode; (8)High efficiency; (9)Uses readily available standard inductors; (10)Thermal shutdown and current limit protection; (11)P+ Product Enhancement tested.