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Part Manufacturer Description PDF Samples Ordering
LM2577T-ADJ/LB02 Texas Instruments SIMPLE SWITCHER® 3.5V to 40V, 3A Low Component Count Step-Up Regulator 5-TO-220 pdf Buy
LM2577SX-ADJ/NOPB Texas Instruments SIMPLE SWITCHER® 3.5V to 40V, 3A Low Component Count Step-Up Regulator 5-DDPAK/TO-263 -40 to 125 pdf Buy
LM2577T-ADJ Texas Instruments SIMPLE SWITCHER® 3.5V to 40V, 3A Low Component Count Step-Up Regulator 5-TO-220 -40 to 125 pdf Buy

Search Stock

Part Manufacturer Description Last Check Distributor Ordering
LM2577-ADJ Texas Instruments - from kr996.0900 (Dec 2016) Farnell element14 Buy
LM25775-ADJ National Semiconductor - 25 (Feb 2017) Chip One Exchange Buy
LM2577M-ADJ National Semiconductor Swithed-Mode Power Supply Controller, Current Mode Type, Bi-Polar, 24 Pin, Plastic, SOP 316 from $3.0550 (Feb 2017) Quest Components Buy
LM2577M-ADJ Texas Instruments Conv DC-DC Single Step Up 3.5V to 40V 24-Pin SOIC W Rail (Alt: LM2577M-ADJ) (Feb 2017) Avnet Buy
LM2577M-ADJ Texas Instruments Voltage Regulators - Switching Regulators SIMPLE SWITCHER® Step-Up Voltage Regulator 24-SOIC -40 to 125 (Feb 2017) Mouser Electronics Buy
LM2577M-ADJ/NOPB National Semiconductor N/A 4,440 from $3.60 (Feb 2017) Rochester Electronics Buy
LM2577M-ADJ/NOPB Texas Instruments Conv DC-DC Single Step Up 3.5V to 40V 24-Pin SOIC W Rail - Rail/Tube (Alt: LM2577M-ADJ/NOPB) (Oct 2016) Avnet Buy
LM2577M-ADJ/NOPB Texas Instruments IC REG MULT CONFG INV ADJ 24SOIC from £4.3140 (Aug 2016) Digi-Key Buy
LM2577M-ADJ/NOPB Texas Instruments Voltage Regulators - Switching Regulators Step-Up VTG Reg (Feb 2017) Mouser Electronics Buy
LM2577N-12 National Semiconductor Swithed-Mode Power Supply Controller, Current Mode Type, Bi-Polar, 16 Pin, Plastic, DIP 20 from $4.86 (Oct 2016) Quest Components Buy
LM2577N-12 National Semiconductor N/A 121 from $1.96 (Feb 2017) Rochester Electronics Buy
LM2577N-ADJ National Semiconductor - 60 (Feb 2017) Chip One Exchange Buy
LM2577N-ADJ National Semiconductor Swithed-Mode Power Supply Controller, Current Mode Type, Bi-Polar, 16 Pin, Plastic, DIP 12 from $4.2462 (Feb 2017) Quest Components Buy
LM2577N-ADJ National Semiconductor N/A 53 from $5.19 (Jan 2017) Rochester Electronics Buy
LM2577N-ADJ Texas Instruments Voltage Regulators - Switching Regulators SIMPLE SWITCHER® Step-Up Voltage Regulator 16-PDIP -40 to 125 (Feb 2017) Mouser Electronics Buy
LM2577N-ADJ Texas Instruments STEP-UP VOLTAGE REGULATOR, 16-DIP; Input Voltage Min:3.5V; Input Voltage Max:40V; No. of Outputs:1; DC / DC Converter IC Case:DIP; No. of Pins:16; Output Current:3A; Output Voltage Min:1.23V; Output Voltage Max:15V ;RoHS Compliant: No (Feb 2017) Newark element14 Buy
LM2577N-ADJ/NOPB National Semiconductor - 179 (Feb 2017) Chip One Exchange Buy
LM2577N-ADJ/NOPB National Semiconductor N/A 179 from $3.60 (Jan 2017) Rochester Electronics Buy
LM2577N-ADJ/NOPB Texas Instruments IC REG MULTI CONFIG ADJ 3A 16DIP 359 from $6.3100 (Dec 2016) Ameya Holding Buy
LM2577N-ADJ/NOPB Texas Instruments Conv DC-DC Single Step Up 3.5V to 40V 16-Pin PDIP Rail - Rail/Tube (Alt: LM2577N-ADJ/NOPB) from €3.7714 (Feb 2017) Avnet Buy

lm2577 with external transistor

Catalog Datasheet MFG & Type PDF Document Tags
Abstract: transistor at twice the input voltage with respect to ground. The "double input voltage" rating requirement , covered, and will not be repeated here. The LM2577 is targeted for applications with load power , Increased load power can be obtained with the LM2577 by paralleling two devices (see Figure 50). Because , information will be provided along with circuit examples that illustrate some applications of Buck, Boost , forced across an inductor, a current will flow through that inductor (and this current will vary with ... National Semiconductor
Original
datasheet

33 pages,
171.49 Kb

Three-terminal Off-line PWM Switch flyback transformer for medical HV Flyback TRANSFORMERS car ignition coil Driver 500w power amplifier circuit diagram lm2577 adj LM2577 buck LM2576 step up converter LM2576 DC-DC CONVERTER 12V transformer LM2576 LM2577 boost buck LM2577-ADJ schematic diagram 48v dc regulator 500W buck regulator wasted spark ignition driver lm2577 with external transistor TEXT
datasheet frame
Abstract: transistor, and voltage setting resistors. A trimmed precision bandgap reference with temperature drift , used as part of a larger servo system. The output is an open-emitter NPN transistor capable of driving , very good regulation in isolated DC/DC converters, it can also be used with other types of voltage , trimming. Features n Fixed voltages of 3.3V and 5.0V with initial tolerance of ± 1% for standard grade , ) Applications n Secondary controller for isolated DC/DC PWM switching regulators systems n Use with LDO ... National Semiconductor
Original
datasheet

13 pages,
351.33 Kb

LM333 equivalent lm2577 with external transistor LM2577 current sink LM3578 equivalent lm2577 boost buck LM3411 TEXT
datasheet frame
Abstract: compensated op amp, a bandgap reference, NPN output transistor, and voltage setting resistors. A trimmed precision bandgap reference with temperature drift curvature correction, provides a guaranteed 1% precision , open-emitter NPN transistor capable of driving up to 15 mA of load current. Because of its small die size , converters, it can also be used with other types of voltage regulators or power semiconductors to provide , of 3.3V and 5.0V with initial tolerance of ± 1% for standard grade and ± 0.5% for A grade n Custom ... National Semiconductor
Original
datasheet

16 pages,
368.82 Kb

OF IC LM2941 MA05A LM3411 LM2577 pin diagram 8 pin LM333 ic for 12v 12V Fixed-Voltage Lm317 LM2576 BOOST CONVERTER LM2576 LED driver lm317 5v to 3.3v TEXT
datasheet frame
Abstract: compensated op amp, a bandgap reference, NPN output transistor, and voltage setting resistors. A trimmed precision bandgap reference with temperature drift curvature correction, provides a guaranteed 1% precision , open-emitter NPN transistor capable of driving up to 15 mA of load current. Because of its small die size , converters, it can also be used with other types of voltage regulators or power semiconductors to provide , of 3.3V and 5.0V with initial tolerance of ± 1% for standard grade and ± 0.5% for A grade n Custom ... National Semiconductor
Original
datasheet

13 pages,
350 Kb

constant current led driver lm317 LM2575 to 220 LM2574 lm2577 boost buck LM2577 boost converter D00A lm317 for 5v to 3.3v LM317 sot23 LM3411 MA05B sot23-5 LDO Regulator Controller lm2574 constant current LM2577 buck MARKING 5A regulator servo LM2575 LM2576 BOOST CONVERTER transformer LM2576 lm2577 with external transistor TEXT
datasheet frame
Abstract: compensated op amp, a bandgap reference, NPN output transistor, and voltage setting resistors. A trimmed precision bandgap reference with temperature drift curvature correction, provides a guaranteed 1% precision , open-emitter NPN transistor capable of driving up to 15 mA of load current. Because of its small die size , converters, it can also be used with other types of voltage regulators or power semiconductors to provide , of 3.3V and 5.0V with initial tolerance of ± 1% for standard grade and ± 0.5% for A grade n Custom ... National Semiconductor
Original
datasheet

13 pages,
351.34 Kb

regulation using optoisolator feedback MA05B LM3411 lm2577 with external transistor 10 pin flyback transformer schematics TEXT
datasheet frame
Abstract: compensated op amp, a bandgap reference, NPN output transistor, and voltage setting resistors. A trimmed precision bandgap reference with temperature drift curvature correction, provides a guaranteed 1% precision , open-emitter NPN transistor capable of driving up to 15 mA of load current. Because of its small die size , converters, it can also be used with other types of voltage regulators or power semiconductors to provide , of 3.3V and 5.0V with initial tolerance of ± 1% for standard grade and ± 0.5% for A grade n Custom ... National Semiconductor
Original
datasheet

13 pages,
344.47 Kb

SHUNT REGULATOR LM317 LM2575 BOOST CONVERTER lm2577 with external transistor LM317 pin information LM3411 MF05A regulation using optoisolator feedback D00A lm2577 boost buck LM2574 SCHEMATIC DIAGRAM LM2577 boost converter LM3578 equivalent TEXT
datasheet frame
Abstract: possible with this circuit. 01198725 FIGURE 13. ± 50 mV External Trim The LM3411 LM3411 is guaranteed to , compensated op amp, a bandgap reference, NPN output transistor, and voltage setting resistors. A trimmed precision bandgap reference with temperature drift curvature correction, provides a guaranteed 1% precision , open-emitter NPN transistor capable of driving up to 15 mA of load current. Because of its small die size , converters, it can also be used with other types of voltage regulators or power semiconductors to provide ... National Semiconductor
Original
datasheet

14 pages,
779.22 Kb

transformer for lm2577 LM2575 BOOST CONVERTER LM2576 isolated LM2577 boost converter LM2577 buck LM2577 current sink LM2577 led LM3411 LM3411-5 MF05A regulation using optoisolator feedback constant current led driver lm317 lm2574 constant current 1A 5v input 5v output regulator LM2576 DC-DC CONVERTER 12V isolated dc linear feedback op-amp TEXT
datasheet frame
Abstract: includes an internally compensated op amp, a bandgap reference, NPN output transistor, and voltage setting resistors. A trimmed precision bandgap reference with temperature drift curvature correction, provides a , system. The output is an open-emitter NPN transistor capable of driving up to 15 mA of load current , in isolated DC/DC converters, it can also be used with other types of voltage regulators or power , –  Fixed voltages of 3.3V and 5.0V with initial tolerance of ±1% for standard grade and ±0.5% for A grade ... OCR Scan
datasheet

14 pages,
466.62 Kb

fua1 AM5X LM2577 boost buck LM2577 BOOST CONVERTER LM2577 current sink transformer lm2576 LM3411 MA05A LM2574 12V Fixed-Voltage Lm317 LM2574 SCHEMATIC DIAGRAM MILITARY LM333 LM337 8pin servo LM2575 lm3411n LM2576 DC-DC CONVERTER 12V lm2577 with external transistor 8 pin LM333 ic for 12v IC LM337 8pin TEXT
datasheet frame
Abstract: circuitry includes an internally compensated op amp, a bandgap reference, NPN output transistor, and voltage setting resistors. A trimmed precision bandgap reference with temperature drift curvature correction , system. The output is an open-emitter NPN transistor capable of driving up to 15 mA of load current , in isolated DC/DC converters, it can also be used with other types of voltage regulators or power , Fixed voltages of 3.3V and 5.0V with initial tolerance of ± 1% for standard grade and ± 0.5% for A grade ... National Semiconductor
Original
datasheet

16 pages,
816.32 Kb

LM3578 ac servo controller schematic LM2576 LED driver LM2577 BOOST CONVERTER LM2577 BUCK BOOST LM3411-3 LM3411AM5 LM3411 LM2574 SCHEMATIC DIAGRAM lm2577 with external transistor SNVS113D TEXT
datasheet frame
Abstract: transistor, and voltage setting resistors. A trimmed precision bandgap reference with temperature drift , transistor, and voltage setting resistors. A trimmed precision bandgap reference with temperature drift , used as part of a larger servo system. The output is an open-emitter NPN transistor capable of driving , very good regulation in isolated DC/DC converters, it can also be used with other types of voltage , trimming. Features n Fixed voltages of 3.3V and 5.0V with initial tolerance of ± 1% for standard grade ... National Semiconductor
Original
datasheet

16 pages,
394.49 Kb

SHUNT REGULATOR LM317 D00A led lm2941 LM2576 DC-DC CONVERTER 12V LM294 LM317 sot-23 LM317 spice model LM317 voltage regulator marking T sot23-5 Op Amp lm2577 boost buck LM333 equivalent 12V Fixed-Voltage Lm317 lm2577 with external transistor LM3411 LM3411 LM3578 equivalent LM3411 LM3411 LM3411 LM3411 LM3411 TEXT
datasheet frame

Archived Files

Abstract Saved from Date Saved File Size Type Download
Transistor with Thermal Protection (333 Kbytes; 01-May-1998) AN-116 AN-116 : Use the LM158/LM258/LM358 LM158/LM258/LM358 Dual with High Performance A/D Converters (467 Kbytes; 10-Jul-1997) AD-02 AD-02 : AD-02 AD-02 High Performance ; 24-Feb-1999) AN-84 AN-84 : Driving 7-Segment Gas Discharge Display Tubes with National Semiconductor Drivers ; 04-Nov-1995) AN-182 AN-182 : Inproving Power Supply Reliability with IC Power Regulators (76 Kbytes Kbytes; 05-Oct-1998) AN-222 AN-222 : Application Note 222 Super Matched Bipolar Transistor Pair Sets New
/datasheets/files/national/htm/nsc00825-v2.htm
National 14/09/2000 117.32 Kb HTM nsc00825-v2.htm
Techniques (405 Kbytes; 01-May-1998) AN-110 AN-110 : Application Note 110 Fast IC Power Transistor with : Transistor Outline (TO-92) (160 Kbytes; 14-Jan-2000) TRANSISTOR_OUTLINE_TO-263_ : Transistor Outline (TO-263) (153 Kbytes; 14-Jan-2000) TRANSISTOR_OUTLINE_TO-252_ : Transistor Outline (TO-252) (26 Kbytes; 14-Jan-2000) TRANSISTOR_OUTLINE_TO-237_ : Transistor Outline (TO-237) (74 Kbytes; 14-Jan-2000) TRANSISTOR_OUTLINE_TO-226_ : Transistor Outline (TO-226) (78 Kbytes
/datasheets/files/national/htm/nsc00826-v2.htm
National 14/09/2000 117.64 Kb HTM nsc00826-v2.htm
: Application Note 110 Fast IC Power Transistor with Thermal Protection (390 Kbytes; 03-Oct-2002) AN-103 AN-103 ) AN-D : Application Note D Versatile Monolithic V/Fs can Compute as Well as Convert with High Accuracy MICRODACs (153 Kbytes; 03-Oct-2002) AN-278 AN-278 : Application Note 278 Designing with a New Super Fast Converter Interfaces Easily with Many Microprocessors (98 Kbytes; 03-Oct-2002) AN-265 AN-265 : Application : Application Note 247 Using the ADC0808/ADC0809 ADC0808/ADC0809 8-Bit uP Compatible A/D Converters with 8-Channel Analog
/datasheets/files/national/apnotes_all_2.html
National 25/09/2003 112.11 Kb HTML apnotes_all_2.html
Kbytes; 05-Oct-1998) AN-110 AN-110 : Application Note 110 Fast IC Power Transistor with Thermal Protection with High Performance A/D Converters (467 Kbytes; 10-Jul-1997) AD-02 AD-02 : AD-02 AD-02 High Performance (585 Kbytes; 24-Feb-1999) AN-84 AN-84 : Driving 7-Segment Gas Discharge Display Tubes with National Power Supply Reliability with IC Power Regulators (56 Kbytes; 03-Oct-2002) AN-184 AN-184 : Application Transistor Pair Sets New Standards for Drift and Noise (464 Kbytes; 01-Oct-2002) AN-225 AN-225 : Application
/datasheets/files/national/apnotes_all_1.html
National 25/09/2003 111.83 Kb HTML apnotes_all_1.html
Kbytes; 02-Apr-96) AN-110 AN-110 : Fast IC Power Transistor With Thermal Protection (168 Kbytes (101 Kbytes; 05-Aug-95) AN-893 AN-893 : Using External Oscillators for the DP857X DP857X Real Time Clocks with Easy with EEPROMs (61 Kbytes; 04-Nov-95) AB-22 AB-22 : The NMC9346 NMC9346 (65 Kbytes; 04-Nov-95 ) AB-27 AB-27 : Use of the NS32332 NS32332 with the NS32082 NS32082 and the NS32201 NS32201 (69 Kbytes; 04-Nov-95) AB-29 AB-29 : An Driver Power Supply (72 Kbytes; 04-Nov-95) AB-35 AB-35 : Flagging Interrupts with the Biphase
/datasheets/files/national/docs/wcd00008/wcd00849.htm
National 03/04/1998 103.44 Kb HTM wcd00849.htm
Techniques (405 Kbytes; 01-May-1998) AN-110 AN-110 : Application Note 110 Fast IC Power Transistor with Kbytes; 03-Feb-2000) TRANSISTOR_OUTLINE_TO-237_ : Transistor Outline (TO-237) (74 Kbytes; 14-Jan-2000) TRANSISTOR_OUTLINE_TO-226_ : Transistor Outline (TO-226) (78 Kbytes; 14-Jan-2000) TRANSISTOR_OUTLINE_TO-202_ : Transistor Outline (TO-202) (236 Kbytes; 14-Jan-2000 Kbytes; 14-Jan-2000) EXTERNAL_LEAD_FINISH_FOR_PLASTIC_PACKAGES : External Lead Finish for Plastic
/datasheets/files/national/htm/nsc01161-v3.htm
National 16/08/2002 138.58 Kb HTM nsc01161-v3.htm
Techniques (405 Kbytes; 01-May-1998) AN-110 AN-110 : Application Note 110 Fast IC Power Transistor with ) TRANSISTOR_OUTLINE_TO-237_ : Transistor Outline (TO-237) (74 Kbytes; 14-Jan-2000) TRANSISTOR_OUTLINE_TO-226_ : Transistor Outline (TO-226) (78 Kbytes; 14-Jan-2000) TRANSISTOR_OUTLINE_TO-202_ : Transistor ) EXTERNAL_LEAD_FINISH_FOR_PLASTIC_PACKAGES : External Lead Finish for Plastic Packages (13 Kbytes; 14-Jan-2000) EXTERNAL_LEAD_FINISH_FOR_HERMETIC_PACKAGES : External Lead Finish for Hermetic Packages (12 Kbytes; 14-Jan-2000) CERQUAD_EIAJ
/datasheets/files/national/htm/nsc01206.htm
National 28/06/2001 133.18 Kb HTM nsc01206.htm
Kbytes; 05-Oct-1998) AN-110 AN-110 : Application Note 110 Fast IC Power Transistor with Thermal Protection with High Performance A/D Converters (467 Kbytes; 10-Jul-1997) AD-02 AD-02 : AD-02 AD-02 High Performance (585 Kbytes; 24-Feb-1999) AN-84 AN-84 : Driving 7-Segment Gas Discharge Display Tubes with National Power Supply Reliability with IC Power Regulators (56 Kbytes; 03-Oct-2002) AN-184 AN-184 : Application Transistor Pair Sets New Standards for Drift and Noise (464 Kbytes; 01-Oct-2002) AN-225 AN-225 : Application
/datasheets/files/national/htm/nsc00248.htm
National 01/11/2002 137.8 Kb HTM nsc00248.htm
Transistor with Thermal Protection (390 Kbytes; 03-Oct-2002) AN-103 AN-103 : Application Note 103 LM340 LM340 ) AN-D : Application Note D Versatile Monolithic V/Fs can Compute as Well as Convert with High Accuracy MICRODACs (153 Kbytes; 03-Oct-2002) AN-278 AN-278 : Application Note 278 Designing with a New Super Fast Converter Interfaces Easily with Many Microprocessors (98 Kbytes; 03-Oct-2002) AN-265 AN-265 : Application : Application Note 247 Using the ADC0808/ADC0809 ADC0808/ADC0809 8-Bit uP Compatible A/D Converters with 8-Channel Analog
/datasheets/files/national/htm/nsc00249.htm
National 01/11/2002 138.31 Kb HTM nsc00249.htm
Transistor with Thermal Protection (333 Kbytes; 01-May-1998) AN-116 AN-116 : Use the LM158/LM258/LM358 LM158/LM258/LM358 Dual with High Performance A/D Converters (467 Kbytes; 10-Jul-1997) AD-02 AD-02 : AD-02 AD-02 High Performance ; 24-Feb-1999) AN-84 AN-84 : Driving 7-Segment Gas Discharge Display Tubes with National Semiconductor Drivers ) AN-182 AN-182 : Inproving Power Supply Reliability with IC Power Regulators (76 Kbytes; 04-Nov-1995 ) AN-222 AN-222 : Application Note 222 Super Matched Bipolar Transistor Pair Sets New Standards for Drift and
/datasheets/files/national/htm/nsc01205.htm
National 28/06/2001 132.73 Kb HTM nsc01205.htm