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TO-220 / 5
Integrated Circuits (ICs)

MIC4576WT

Active
Microchip Technology

DC-DC SWITCHING BUCK (STEP DOWN) REGULATOR, ADJUSTABLE, 4 V-36 VIN, 1.23V-33V/3A OUT, TO-220-5

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Search across all available documentation for this part.

DocumentsMigrating to KSZ8051 Family PHY Transceivers200kHz MIC4574/5/6 Family Design Guide+5
TO-220 / 5
Integrated Circuits (ICs)

MIC4576WT

Active
Microchip Technology

DC-DC SWITCHING BUCK (STEP DOWN) REGULATOR, ADJUSTABLE, 4 V-36 VIN, 1.23V-33V/3A OUT, TO-220-5

Deep-Dive with AI

DocumentsMigrating to KSZ8051 Family PHY Transceivers200kHz MIC4574/5/6 Family Design Guide+5

Technical Specifications

Parameters and characteristics for this part

SpecificationMIC4576WT
Current - Output3 A
Frequency - Switching200 kHz
FunctionStep-Down
Mounting TypeThrough Hole
Number of Outputs1
Operating Temperature [Max]85 °C
Operating Temperature [Min]-40 °C
Output ConfigurationPositive
Output TypeAdjustable
Package / CaseTO-220-5
Supplier Device PackageTO-220-5
Synchronous RectifierFalse
TopologyBuck
Voltage - Input (Max) [Max]36 V
Voltage - Input (Min) [Min]4 V
Voltage - Output (Max) [Max]33 V
Voltage - Output (Min/Fixed)1.23 V

MIC4576 Series

200kHz 3.0A Step-down Regulator

PartCurrent - OutputOutput ConfigurationTopologyVoltage - Input (Max) [Max]Synchronous RectifierSupplier Device PackagePackage / CaseNumber of OutputsVoltage - Input (Min) [Min]Operating Temperature [Max]Operating Temperature [Min]Voltage - Output (Min/Fixed)Frequency - SwitchingMounting TypeOutput TypeFunctionOutput TypeVoltage - Output (Max) [Max]
TO-220-5
Microchip Technology
MIC4576-3.3WT
3 A
Positive
Buck
36 V
TO-220-5
TO-220-5
1
4 V
85 °C
-40 °C
3.3 V
200 kHz
Through Hole
1.81 mOhm
Step-Down
TO-220-5
Microchip Technology
MIC4576-5.0WT
3 A
Positive
Buck
36 V
TO-220-5
TO-220-5
1
4 V
85 °C
-40 °C
5 V
200 kHz
Through Hole
1.81 mOhm
Step-Down
TO-220-5
Microchip Technology
MIC4576-5.0BU TR
3 A
Positive
Buck
36 V
TO-263-5
D2PAK (5 Leads + Tab)
TO-263-6
TO-263BA
1
4 V
85 °C
-40 °C
5 V
200 kHz
Surface Mount
1.81 mOhm
Step-Down
TO-220-5
Microchip Technology
MIC4576-3.3BU TR
3 A
Positive
Buck
36 V
TO-263-5
D2PAK (5 Leads + Tab)
TO-263-6
TO-263BA
1
4 V
85 °C
-40 °C
3.3 V
200 kHz
Surface Mount
1.81 mOhm
Step-Down
TO-220-5
Microchip Technology
MIC4576-3.3BT
3 A
Positive
Buck
36 V
TO-220-5
TO-220-5
1
4 V
85 °C
-40 °C
3.3 V
200 kHz
Through Hole
1.81 mOhm
Step-Down
TO-220-5
Microchip Technology
MIC4576-3.3BU
3 A
Positive
Buck
36 V
TO-263-5
D2PAK (5 Leads + Tab)
TO-263-6
TO-263BA
1
4 V
85 °C
-40 °C
3.3 V
200 kHz
Surface Mount
1.81 mOhm
Step-Down
TO-263-5
Microchip Technology
MIC4576BU
3 A
Positive
Buck
36 V
TO-263-5
D2PAK (5 Leads + Tab)
TO-263-6
TO-263BA
1
4 V
85 °C
-40 °C
1.23 V
200 kHz
Surface Mount
Step-Down
Adjustable
33 V
TO-220 / 5
Microchip Technology
MIC4576WT
3 A
Positive
Buck
36 V
TO-220-5
TO-220-5
1
4 V
85 °C
-40 °C
1.23 V
200 kHz
Through Hole
Step-Down
Adjustable
33 V
TO-263-5
Microchip Technology
MIC4576BU TR
3 A
Positive
Buck
36 V
TO-263-5
D2PAK (5 Leads + Tab)
TO-263-6
TO-263BA
1
4 V
85 °C
-40 °C
1.23 V
200 kHz
Surface Mount
Step-Down
Adjustable
33 V
INFINEON BTS441TGATMA1
Microchip Technology
MIC4576WU
3 A
Positive
Buck
36 V
TO-263-5
D2PAK (5 Leads + Tab)
TO-263-6
TO-263BA
1
4 V
85 °C
-40 °C
1.23 V
200 kHz
Surface Mount
Step-Down
Adjustable
33 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyTube 1$ 4.28
25$ 3.55
100$ 3.25
Microchip DirectTUBE 1$ 4.28
25$ 3.55
100$ 3.25
1000$ 2.69
5000$ 2.49
10000$ 2.30
NewarkEach 1$ 5.66
10$ 5.28
25$ 4.90
50$ 4.74
100$ 4.59

Description

General part information

MIC4576 Series

The MIC4576 is a series of easy to use fixed and adjustable BiCMOS step-down (buck) switch-mode voltage regulators. The 200kHz MIC4576 duplicates the pinout and function of the 52kHz LM2576. The higher switching frequency may allow up to a 2:1 reduction in output filter inductor size.

The MIC4576 is available in 3.3V, and 5V fixed output versions or a 1.23V to 33V adjustable output version. Both versions are capable of driving a 3A load with excellent line and load regulation.

The feedback voltage is guaranteed to ±2% tolerance for adjustable versions, and the output voltage is guaranteed to ±3% for fixed versions, within specified voltages and load conditions. The oscillator frequency is guaranteed to ±10%.