Product Summary

The LM2576ADJ regulator is a monolithic integrated circuit that provides all the active functions for a step-down (buck) switching regulator, capable of driving 3A load with excellent line and load regulation. The LM2576ADJ is available in fixed output voltages of 3.3V, 5V, 12V, 15V, and an adjustable output version. The applications of the LM2576ADJ include Simple high-efficiency step-down (buck) regulator, Efficient pre-regulator for linear regulators, On-card switching regulators, Positive to negative converter (Buck-Boost).

Parametrics

LM2576ADJ absolute maximum ratings: (1)Maximum Supply Voltage: 45V; (2)ON /OFF Pin Input Voltage: -0.3V ≤ V ≤ +VIN; (3)Output Voltage to Ground (Steady State): -1V; (4)Power Dissipation: Internally Limited; (5)Storage Temperature Range: -65℃ to +150℃; (6)Maximum Junction Temperature: 150℃; (7)Minimum ESD Rating (C = 100 pF, R = 1.5 kΩ): 2kV; (8)Lead Temperature (Soldering, 10 Seconds): 260℃.

Features

LM2576ADJ 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 over line and load conditions; (3)Guaranteed 3A output current; (4)Wide input voltage range, 40V up to 60V for HV 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.

Diagrams

LM250
LM250

Other


Data Sheet

Negotiable 
LM25005EVAL
LM25005EVAL

National Semiconductor (TI)

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Data Sheet

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LM25005MH

National Semiconductor (TI)

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Data Sheet

0-219: $1.02
219-292: $1.00
292-511: $0.98
511-803: $0.96
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LM25005MH/NOPB

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Data Sheet

0-1: $1.89
1-10: $1.70
10-25: $1.51
25-50: $1.42
LM25005MHX
LM25005MHX

National Semiconductor (TI)

Switching Converters, Regulators & Controllers

Data Sheet

0-2500: $0.94
LM25005MHX/NOPB
LM25005MHX/NOPB

National Semiconductor (TI)

Switching Converters, Regulators & Controllers

Data Sheet

0-2010: $0.94
2010-2500: $0.94