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Part Manufacturer Description Last Check Distributor Ordering
MIC2940A-12BT Micrel (RETIRED) LDO Regulator Pos 12V 1.25A 3-Pin(3+Tab) TO-220 2,569 from $0.68 (Sep 2016) Rochester Electronics Buy
MIC2940A-12BT Micrel Semiconductor N/A 2,569 from $0.68 (Aug 2016) Rochester Electronics Buy
MIC2940A-12BU Micrel (RETIRED) - 7,173 (Sep 2016) America II Electronics Buy
MIC2940A-12BU Micrel (RETIRED) LDO Regulator Pos 12V 1.25A 4-Pin(3+Tab) TO-263 3,063 from $0.66 (Sep 2016) Rochester Electronics Buy
MIC2940A-12BU Micrel Semiconductor - 7,173 (Aug 2016) America II Electronics Buy
MIC2940A-12BU Micrel Semiconductor N/A 3,063 from $0.66 (Aug 2016) Rochester Electronics Buy
MIC2940A-12BU TR Micrel (RETIRED) undefined 3,000 from $0.66 (Sep 2016) Rochester Electronics Buy
MIC2940A-12BU TR Micrel Semiconductor N/A 3,000 from $0.66 (Aug 2016) Rochester Electronics Buy
MIC2940A-12WT Microchip Technology IC REG LDO 12V 1.25A TO220-3 618 from $1.80 (Sep 2016) Digi-Key Buy
MIC2940A-12WT Microchip Technology MIC2940A Series 12 V Fixed Output Voltage 1.25 A LDO Regulator - TO-220-3 from $1.11 (Sep 2016) Future Electronics Buy
MIC2940A-12WT Microchip Technology 1.25A LDO Fixed Voltage from $1.50 (Sep 2016) microchipDIRECT Buy
MIC2940A-12WT Microchip Technology LDO Voltage Regulators 1.25A LDO Fixed Voltage 237 from $1.16 (Aug 2016) Mouser Electronics Buy
MIC2940A-12WT Microchip Technology 1.25A LDO Fixed Voltage, 3 TO-220 TUBE from $1.80 (Sep 2016) Newark element14 Buy
MIC2940A-12WT Microchip Technology LDO Regulator Pos 12V 1.25A 3-Pin(3+Tab) TO-220 125 from $1.4136 (Sep 2016) Verical Buy
MIC2940A-12WU - - 5 (Sep 2016) Chip One Exchange Buy
MIC2940A-12WU Microchip Technology LDO Regulator Pos 12V 1.25A 4-Pin(3+Tab) TO-263 480 from $1.2392 (Aug 2016) Arrow Electronics Buy
MIC2940A-12WU Microchip Technology Unidentified 180 from $1.41 (Sep 2016) Chip1Stop Buy
MIC2940A-12WU Microchip Technology IC REG LDO 12V 1.25A TO263-3 937 from $1.72 (Sep 2016) Digi-Key Buy
MIC2940A-12WU Microchip Technology MIC2940A Series 12 V Fixed Output Voltage 1.25 A SMT LDO Regulator - TO-263-3 51 from $1.06 (Sep 2016) Future Electronics Buy
MIC2940A-12WU Microchip Technology 1.25A LDO Fixed Voltage from $1.43 (Sep 2016) microchipDIRECT Buy

MIC2940A Datasheet

Part Manufacturer Description PDF Type Ordering
MIC2940A Micrel Semiconductor 1.25A Low-Dropout Voltage Regulator Preliminary Information
ri

8 pages,
120.74 Kb

Original Buy
datasheet frame
MIC2940A/2941A Micrel Semiconductor 1.25A Low-Dropout Voltage Regulator
ri

8 pages,
120.74 Kb

Original Buy
datasheet frame
MIC2940A-12BT Micrel Semiconductor 1.25A Low-Dropout Voltage Regulator Preliminary Information
ri

8 pages,
120.74 Kb

Original Buy
datasheet frame
MIC2940A-12BU Micrel Semiconductor 1.25A Low-Dropout Voltage Regulator Preliminary Information
ri

8 pages,
120.74 Kb

Original Buy
datasheet frame
MIC2940A-12WT Micrel Semiconductor 1.25A Low-Dropout Voltage Regulator
ri

10 pages,
530.64 Kb

Original Buy
datasheet frame
MIC2940A-12WU Micrel Semiconductor 1.25A Low-Dropout Voltage Regulator
ri

10 pages,
530.64 Kb

Original Buy
datasheet frame
MIC2940A-2941A Micrel Semiconductor 1.25A Low-Dropout Voltage Regulator
ri

8 pages,
120.74 Kb

Original Buy
datasheet frame
MIC2940A-3.3BT Micrel Semiconductor 1.25A Low-Dropout Voltage Regulator Preliminary Information
ri

8 pages,
120.74 Kb

Original Buy
datasheet frame
MIC2940A-3.3BU Micrel Semiconductor 1.25A Low-Dropout Voltage Regulator Preliminary Information
ri

8 pages,
120.74 Kb

Original Buy
datasheet frame
MIC2940A-3.3WT Micrel Semiconductor 1.25A Low-Dropout Voltage Regulator
ri

10 pages,
530.64 Kb

Original Buy
datasheet frame

MIC2940A

Catalog Datasheet MFG & Type PDF Document Tags
Abstract: MIC2940A-3.3WT 3.3V –40° to +125°C 3-Pin TO-220 RoHS Comliant(1) MIC2940A-3.3WU 3.3V , MIC2940A-5.0WT 5V –40° to +125°C 3-Pin TO-220 RoHS Comliant(1) MIC2940A-5.0WU 5V â , MIC2940A-12WT 12V –40° to +125°C 3-Pin TO-220 RoHS Comliant(1) MIC2940A-12WU 12V â , -220-3 (MIC2940A-xxBT/WT) MIC2940A Pinout 1) Input 2) Ground 3) Output 1 2 3 4 5 TO , Voltage Temperature Range Package Lead Finish MIC2940A-3.3BT 3.3V –40° to +125°C ... Micrel Semiconductor
Original
datasheet

11 pages,
254.05 Kb

MIC2940A/2941A TEXT
datasheet frame
Abstract: Ratings Ordering Information Part Number MIC2940A-3.3BT MIC2940A-3.3BU MIC2940A-5.0BT MIC2940A-5.0BU MIC2940A-12BT MIC2940A-12BU MIC2941ABT MIC2941ABT MIC2941 MIC2941 ABU Voltage 3.3 3.3 5.0 5.0 12 12 Adj Adj * Temperature , 1.23 V R-l v OUT = v R E Fx (1 + ) V REF _|_ R2 Figure 2. MIC2940A-5.0 Fixed +5V R egulator , GROUND OUTPUT TO-263 Package (MIC2940A-XXBU) 1 2 3 4 5 TO-263-5 Package (MIC2941 MIC2941 ABU , 5 INPUT GROUND OUTPUT TO-220 Package (MIC2940A-XXBT) TO-220-5 Package (MIC2941ABT MIC2941ABT) The Tab ... OCR Scan
datasheet

8 pages,
276.84 Kb

MIC2941A MIC2940A MIC2940 MIC2941 TEXT
datasheet frame
Abstract: representative/distributor for availability and specifications. MIC2940A-3.3BT 3.3 ­40°C to +125°C TO-220 Power Dissipation (Note 1) . Internally Limited MIC2940A-3.3BU 3.3 ­40°C to +125°C TO-263 MIC2940A-5.0BT 5.0 ­40°C to +125°C TO-220 MIC2940A-5.0BU 5.0 ­40°C to +125°C TO-263 MIC2940A-12BT 12 ­40°C to +125°C TO-220 MIC2940A-12BU 12 , GND 1.23V VOUT = VREF x (1 + Figure 2. MIC2940A-5.0 Fixed +5V Regulator R1 ) R2 V REF ... Micrel Semiconductor
Original
datasheet

8 pages,
85.62 Kb

laptop battery pinout MIC2940A MIC2940A-12BT MIC2940A-XXBT MIC2941ABT MIC2940A-12BU MIC2941ABU 2n2222 331 MIC2941A MIC2940 2n2222 - 331 2n2222 -331 MIC2940A/2941A MIC2940A/2941A MIC2940A/2941A TEXT
datasheet frame
Abstract: Temperature Range Package Lead Finish MIC2940A-3.3BT 3.3V ­40° to +125°C 3-Pin TO-220 Standard MIC2940A-3.3BU 3.3V ­40° to +125°C 3-Pin TO-263 Standard MIC2940A-3.3WT 3.3V , MIC2940A-5.0BU 5V ­40° to +125°C 3-Pin TO-263 Standard MIC2940A-5.0WT 5V ­40° to , -263 RoHS Comliant(1) MIC2940A-12BT 12V ­40° to +125°C 3-Pin TO-220 Standard MIC2940A-12BU , -220-3 (MIC2940A-xxBT/WT) MIC2940A Pinout 1) Input 2) Ground 3) Output 1 2 3 4 5 TO ... Micrel Semiconductor
Original
datasheet

11 pages,
320.39 Kb

time adjust 50 ms 600 ms MIC2940 MIC2940A-12BT MIC2940A-12WT mic2941 MIC2941ABT MIC2940A smps 12v 1250mA MIC2941A laptop battery pinout MIC2941AWT MIC2940A/2941A TEXT
datasheet frame
Abstract: Standard Pb-Free Pb-Free Order Ordering Information Part Number MIC2940A-3.3BT MIC2940A-3.3BU MIC2940A-3.3WT MIC2940A-3.3WU MIC2940A-5.0BT MIC2940A-5.0BU MIC2940A-5.0WT MIC2940A-5.0WU MIC2940A-12BT MIC2940A-12BU MIC2940A-12WT MIC2940A-12WU MIC2941ABT MIC2941ABT MIC2941ABU MIC2941ABU MIC2941AWT MIC2941AWT MIC2941AWU MIC2941AWU * Junction , 100 pF 22uF GND V OUT = V R E F x (1 + R2 Figure 2. MIC2940A-5.0 Fixed +5V Regulator , fixed voltage (3.3V, 5V, and 12V) and adjustable voltage configurations. The MIC2940A-xx devices are ... Micrel Semiconductor
Original
datasheet

10 pages,
453.03 Kb

MIC2941A MIC2941AWU MIC2940A/2941A TEXT
datasheet frame
Abstract: Range Package Lead Finish MIC2940A-3.3BT 3.3V ­40° to +125°C 3-Pin TO-220 Standard MIC2940A-3.3BU 3.3V ­40° to +125°C 3-Pin TO-263 Standard MIC2940A-3.3WT 3.3V ­40° to , -263 RoHS Comliant(1) MIC2940A-5.0BT 5V ­40° to +125°C 3-Pin TO-220 Standard MIC2940A-5.0BU , (1) MIC2940A-12BT 12V ­40° to +125°C 3-Pin TO-220 Standard MIC2940A-12BU 12V , -220-3 (MIC2940A-xxBT/WT) MIC2940A Pinout 1) Input 2) Ground 3) Output 1 2 3 4 5 TO ... Micrel Semiconductor
Original
datasheet

11 pages,
320.39 Kb

TC-0303 pinout battery laptop MIC2941A MIC2940A-12BT MIC2940A MIC2940 L441 laptop battery pinout smps 12v 1250mA MIC2940A/2941A TEXT
datasheet frame
Abstract: /2941A /2941A Micrel Ordering Information Part Number MIC2940A-3.3BT MIC2940A-3.3BU MIC2940A-5.0BT MIC2940A-5.0WT MIC2940A-5.0BU MIC2940A-5.0WU MIC2940A-12BT MIC2940A-12BU MIC2941ABT MIC2941ABT MIC2941ABU MIC2941ABU * Junction , VREF x (1 + ) R2 V REF R2 Figure 2. MIC2940A-5.0 Fixed +5V Regulator Figure 3. MIC2941A MIC2941A , GROUND OUTPUT TO-263 Package (MIC2940A-xxBU) 1 2 3 4 5 TO-263-5 Package (MIC2941ABU MIC2941ABU) MIC2941A MIC2941A , OUTPUT TO-220 Package (MIC2940A-xxBT) TO-220-5 Package (MIC2941ABT MIC2941ABT) The Tab is Ground on TO-220 and ... Micrel Semiconductor
Original
datasheet

12 pages,
92.1 Kb

MIC2940A/2941A TEXT
datasheet frame
Abstract: Micrel Absolute Maximum Ratings Ordering Information Part Number MIC2940A-3.3BT MIC2940A-3.3BU MIC2940A-5.0BT MIC2940A-5.0BU MIC2940A-12BT MIC2940A-12BU MIC2941ABT MIC2941ABT MIC2941ABU MIC2941ABU Voltage 3.3 3.3 5.0 5.0 12 , . MIC2940A-5.0 Fixed +5V Regulator Figure 3. MIC2941A MIC2941A Adjustable Regulator +5V to +7V +VIN +VIN VCC , INPUT GROUND OUTPUT TO-263 Package (MIC2940A-xxBU) 1 2 3 4 5 TO-263-5 Package (MIC2941ABU MIC2941ABU , GROUND OUTPUT TO-220 Package (MIC2940A-xxBT) TO-220-5 Package (MIC2941ABT MIC2941ABT) The Tab is Ground on TO ... Micrel Semiconductor
Original
datasheet

8 pages,
127.2 Kb

MIC2941A MIC2940A/2941A TEXT
datasheet frame
Abstract: 2940A-5.0BT M IC2940A-5 IC2940A-5.0BU M IC2940A-12BK IC2940A-12BK MIC2940A-12BT M IC2940A-12BU IC2940A-12BU M IC2941ABK IC2941ABK M IC2941ABT IC2941ABT MIC2941 MIC2941 ABU , F * 0 + V REF _|_ 1.23V R2 Ri ) Figure 2. MIC2940A-5.0 Fixed +5V Regulator Figure 3 , > O ) Case is Ground TO-3 Package (MIC2940A-XXBK) Output Adjust o o Input INPUT GROUND OUTPUT TO-263 Package hutdown (MIC2940A-XXBU) Case is ground TO-3-5 Package (MIC2941ABK MIC2941ABK , GROUND OUTPUT T0-220 T0-220 Package (MIC2940A-XXBT) 1 2 3 4 5 TO-263-5 Package (MIC2941 MIC2941 ABU) 6-45 TO ... OCR Scan
datasheet

8 pages,
310.46 Kb

IC2940A-5 MIC2941A MIC2940 MIC2940A IC2940A IC2941A MIC2941 TEXT
datasheet frame
Abstract: OUTPUT TO-220 Package (MIC2940A-xxBT) TO-220-5 Package (MIC2941ABT MIC2941ABT) The Tab is Ground on T0-220 T0-220 and TO-263 packages 1997 3-27 MIC2940A/2941A Ordering Information Part Number MIC2940A-3.3BT MIC2940A-3.3BU MIC2940A-5.0BT MIC2940A-5.0BU MIC2940A-12BT MIC2940A-12BU MIC2941ABT MIC2941ABT MIC2941 MIC2941 ABU Voltage 3.3 , Typical Applications Figure 2. MIC2940A-5.0 Fixed +5V Regulator Figure 3. MIC2941A MIC2941A Adjustable , Pin Configuration INPUT GROUND OUTPUT TO-263 Package (MIC2940A-xxBU) 1 2 3 4 5 TO-263-5 Package ... OCR Scan
datasheet

9 pages,
301.13 Kb

MIC2940 MIC294QA/2941 MIC2940A MIC2941A MIC2941 TEXT
datasheet frame

Archived Files

Abstract Saved from Date Saved File Size Type Download
MIC2940A-3.3BT TO-220 MIC2940A-5.0BT MIC2940A-12BT MIC2941ABT MIC2941ABT TO-220-5 MIC2940A-3.3BU TO-263 MIC2940A-5.0BU MIC2940A-12BU MIC2941ABU MIC2941ABU TO-263-5 MIC2940A-xx devices are three pin fixed voltage regulators. A logic-compatible shutdown input is provided on MIC2940A/2941A 1.25A Low-Dropout Voltage Regulator
/datasheets/files/micrel/products/products/mic2940a.html
Micrel 26/06/2002 9.06 Kb HTML mic2940a.html
LX8117B-33CDD LX8117B-33CDD MIC2940A-3.3BU Functional Equivalent LX8117B-05CDD LX8117B-05CDD MIC2940A-5.0BU MIC39100-3 MIC39100-3.3BU Functional Equivalent CLM2810AT-12 CLM2810AT-12 MIC2940A-12BU Functional Equivalent LX8117B-25CST LX8117B-25CST MIC39150-2 MIC39150-2.5BU Functional Equivalent LX8117B-33CST LX8117B-33CST MIC2940A-3.3BU Functional Equivalent LX8117B-05CST LX8117B-05CST MIC2940A-5.0BU Functional Equivalent LX8117-00CDD LX8117-00CDD
/datasheets/files/micrel/_xtra/ldo-x-ref.shtml
Micrel 26/06/2002 151.22 Kb SHTML ldo-x-ref.shtml
370mV Load Dump Protection MIC2940A 1.25A 160uA 370mV Load Dump Protection MIC2940A
/datasheets/files/micrel/products/ldos.shtml
Micrel 26/06/2002 189.34 Kb SHTML ldos.shtml
MIC2940A 1.25A MIC2940A 1.25A
/datasheets/files/micrel/_xtra/conv/micrel_2000_q4_short_form.shtml
Micrel 26/06/2002 413.37 Kb SHTML micrel_2000_q4_short_form.shtml
No abstract text available
/download/22342587-383216ZC/micrel_2002_q1_short_form.doc
Micrel 26/06/2002 779.5 Kb DOC micrel_2002_q1_short_form.doc

Shortform Datasheet Search

Part Manufacturer Description Shortform Datasheet Ordering
MIC2940A12BK Micrel Semiconductor, Inc. Fixed Positive Voltage Regulator

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Buy
MIC2940A12BT Micrel Semiconductor, Inc. Fixed Positive Voltage Regulator

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Buy
MIC2940A12BU Micrel Semiconductor, Inc. Fixed Positive Voltage Regulator

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MIC2940A3.3BK Micrel Semiconductor, Inc. Fixed Positive Voltage Regulator

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MIC2940A3.3BT Micrel Semiconductor, Inc. Fixed Positive Voltage Regulator

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MIC2940A3.3BU Micrel Semiconductor, Inc. Fixed Positive Voltage Regulator

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MIC2940A5.0BK Micrel Semiconductor, Inc. Fixed Positive Voltage Regulator

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MIC2940A5.0BT Micrel Semiconductor, Inc. Fixed Positive Voltage Regulator

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MIC2940A5.0BU Micrel Semiconductor, Inc. Fixed Positive Voltage Regulator

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Exar Cross Reference Results

Exar Part Industry Part Manufacturer Type Description Comments Function Pin Compatible
SPX2940T-L-3-3/TR Buy MIC2940A-3.3WU Buy Micrel Pinout Equivalent 3.3V Regulator 0.03 accuracy -40 ºC to +125 ºC temp range TO-220 Package Yes Yes
SPX2940T-L-5-0/TR Buy MIC2940A-5.0WU Buy Micrel Pinout Equivalent 5V regulator 0.03 accuracy -40 ºC to +125 ºC temp range TO-220 Package Yes Yes
SPX2940U-L-3-3 Buy MIC2940A-3.3WT Buy Micrel Pinout Equivalent 3.3V Regulator 0.03 accuracy -40 ºC to +125 ºC temp range TO-220 Package Yes Yes
SPX2940U-L-5-0 Buy MIC2940A-5.0WT Buy Micrel Pinout Equivalent 5V regulator 0.03 accuracy -40 ºC to +125 ºC temp range TO-220 Package Yes Yes

Infineon (Siemens) Cross Reference Results

Infineon (Siemens) Part Status Industry Part Manufacturer Description
TLE4274GV50 Buy MIC2940A-5BU Buy Micrel Linear Voltage Regulators - Selection Table

Micrel Cross Reference Results

Micrel Part Industry Part Manufacturer Type
MIC2940A Buy LM3940 Buy National Semiconductor Pin-for-pin, plug-in replacement: Electrical specifications and pinout are 100% compatible
MIC2940A Buy SPX2940 Buy Sipex Pin-for-pin, plug-in replacement: Electrical specifications and pinout are 100% compatible

On Semiconductor Cross Reference Results

On Semiconductor Part Industry Part Manufacturer Type
LM2931AT-5.0G Buy MIC2940A-5.0BTTR Buy Micrel Semiconductor Close
LM2931AT-5.0G Buy MIC2940A-5.0WTTR Buy Micrel Semiconductor Close
LM2931T-5.0G Buy MIC2940A-5.0BTTR Buy Micrel Semiconductor Close
LM2931T-5.0G Buy MIC2940A-5.0WTTR Buy Micrel Semiconductor Close
MC7805ABD2TG Buy MIC2940A-5.0BU Buy Micrel Semiconductor Close
MC7805ABD2TG Buy MIC2940A-5.0WU Buy Micrel Semiconductor Close
MC7805ABD2TG Buy MIC2940A-5.0WUTR Buy Micrel Semiconductor Close
MC7805ABD2TR4G Buy MIC2940A-5.0BU Buy Micrel Semiconductor Close
MC7805ABD2TR4G Buy MIC2940A-5.0WU Buy Micrel Semiconductor Close
MC7805ABD2TR4G Buy MIC2940A-5.0WUTR Buy Micrel Semiconductor Close

Texas Instruments Cross Reference Results

Texas Instruments Part Industry Part Manufacturer Type Comment Description
LM2940-N Buy MIC2940A-12.0BT Buy Micrel Similar Functionality 1A Low Dropout Regulator
LM2940-N Buy MIC2940A-12.0BU Buy Micrel Similar Functionality 1A Low Dropout Regulator
LM2940-N Buy MIC2940A-5.0BT Buy Micrel Similar Functionality 1A Low Dropout Regulator
LM2940-N Buy MIC2940A-5.0BU Buy Micrel Similar Functionality 1A Low Dropout Regulator
TPS72501 Buy MIC2940A Buy Micrel Similar Functionality Single Output LDO, 1.0A, Adj.(1.22 to 5.5V), Any cap, Low Input Voltage, Integrated SVS