IC manufacturers Analog Devices
IC manufacturers (103)
- All manufacturers
Analog Devices
Infineon Technologies
Microchip
Onsemi
Renesas
ROHM
STMicroelectronics
Texas Instruments
- 3peak incorporated (28)
- Ablic (23)
- Acco Semiconductor (1)
- Advanced Power (4)
- Allegro Microsystems (100)
- Alpha & Omega Semiconductor (37)
- AnalogySemi (3)
- AnDAPT Inc (204)
- Anpec (13)
- AXElite (2)
- Backward (6)
- Bright Power Semiconductor (1)
- Broadcom (46)
- Cambridge GaN Devices (18)
- Chipanalog Micro (10)
- Cologne Chips (1)
- Convenient Power (1)
- Dialog Semiconductor (12)
- Diodes Incorporated (259)
- Divimath (8)
- Elmos AG (1)
- EPC (140)
- e-Peas Semiconductors (1)
- Eta Solutions Co. Ltd. (9)
- GaN Systems (8)
- GaNPower (3)
- Giantec (1)
- Gstek Wuxi (1)
- Helix Semiconductor (7)
- IKON (1)
- Indie Semiconductor (8)
- Innovision Semiconductor Inc (2)
- Intel (68)
- Inventchip Technology (3)
- ISSI (51)
- JoulWatt (20)
- KDPOF (3)
- Kinetic Technology (8)
- Lattice semiconductor Corporation (38)
- Littelfuse (1)
- Lumissil Microsystems (8)
- M3 Technology (M3Tek) (7)
- Macnica (22)
- Marvell Semiconductor (1)
- MaxLinear (181)
- Menlo Micro (1)
- MikroE (25)
- MindCet (2)
- Monolithic Power Systems (981)
- Navitas Semiconductor Inc (6)
- NewEdge Technologies, Inc. (1)
- Nexperia (267)
- Nisshinbo Micro Device Inc. (10)
- Novosense Micro (1)
- NXP (338)
- O2 Micro International Ltd (10)
- On Bright (7)
- Panasonic (2)
- PN Junction Semiconductor (2)
- Power Integrations (116)
- Powermat (1)
- Pulsiv (19)
- Qorvo (97)
- Realsil SuRealsil(tek) Microelectronics (1)
- Richtek (297)
- Sanken Electric Co., Ltd. (16)
- Sckipio (6)
- Semtech (86)
- SG-Micro (58)
- SiFive (2)
- Silanna Semiconductor (9)
- Silergy Corporation (34)
- Silicon Laboratory Inc. (108)
- Silicontent Technology (59)
- Silvertel (59)
- Skycore Semiconductors (1)
- Skyworks (33)
- Southchip (14)
- Summit Wireless (1)
- Tagore Tech (7)
- Taiwan Semiconductor (1)
- TDK Corporation (1)
- Tempo Semiconductor (1)
- Torex (37)
- Toshiba (27)
- Transphorm (21)
- TransSIP (2)
- Union (21)
- uPI Semiconductor (2)
- Valens Semiconductor (31)
- Wise Integration (3)
- Wolfspeed (23)
- Xilinx (22)
- XL Semiconductor (3)
- XYSemi (62)
Overview
| Topology | Flyback Converter |
| Input voltage | 3-40 V |
| Output 1 | 12 V / 1 A |
| Output 2 | 24 V / 0.5 A |
Description
The LT3575 is a monolithic switching regulator specifically designed for the isolated flyback topology. No third winding or optoisolator is required for regulation. The part senses the isolated output voltage directly from the primary side flyback waveform. A 2.5A, 60V NPN power switch is integrated along with all control logic into a 16-lead TSSOP package.
The LT3575 operates with input supply voltages from 3V to 40V, and can deliver output power up to 14W with no external power switch.The LT3575 utilizes boundary mode operation to provide a small magnetic solution with improved load regulation.
The output voltage is easily set with two external resistors and the transformer turns ratio. Off the shelf transformers are available for many applications.
Features
- 3V to 40V Input Voltage Range
- 2.5A, 60V Integrated NPN Power Switch
- Boundary Mode Operation
- No Transformer Third Winding orOptoisolator Required for Regulation
- Improved Primary-Side Winding Feedback Load Regulation
- VOUT Set with Two External Resistors
- BIAS Pin for Internal Bias Supply and Power NPN Driver
- Programmable Soft-Start
- Programmable Power Switch Current Limit
- Thermally Enhanced 16-Lead TSSOP
Remarks:
- See page num 11 for more inductor values.
Typical applications
- Medical Isolated Power Supplies
- Automotive
- Industrial
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | VIN | VOut1(V) | IOut1(A) | Vaux(V) | L(µH) | n | ISAT(A) | LS(µH) | VT(V (AC)) | Size | IC Reference | SamplesAvailability & Sample | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | SPECWE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748, 9 - 36 V (DC), 12 V | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Input Voltage 9 - 36 V (DC) | Output Voltage 112 V | Output Current 11 A | Auxiliary Voltage8 V | Inductance100 µH | Turns Ratio3:1:0.667 | Saturation Current1.65 A | Leakage Inductance3 µH | Insulation Test Voltage1500 V (AC) | SizeEP10 | IC ReferenceLT3575 | –Check availability | ||||
| SPECWE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748, 9 - 36 V (DC), 24 V | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Input Voltage 9 - 36 V (DC) | Output Voltage 124 V | Output Current 10.5 A | Auxiliary Voltage8 V | Inductance100 µH | Turns Ratio1:1:0.333 | Saturation Current2.1 A | Leakage Inductance3 µH | Insulation Test Voltage1500 V (AC) | SizeEP10 | IC ReferenceLT3574 & LT3575 | –Check availability | ||||
| SPECWE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748, 36 V (DC), 24 V | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Input Voltage 36 V (DC) | Output Voltage 124 V | Output Current 10.5 A | Auxiliary Voltage8 V | Inductance100 µH | Turns Ratio2:1:0.33 | Saturation Current1.9 A | Leakage Inductance3 µH | Insulation Test Voltage1500 V (AC) | SizeEP10 | IC ReferenceLT3574 & LT3575 | –Check availability |
Availability Forecast
WE item number Packaging unitsLead time
––– weeks
| Expected Availability | Opening inventory | Quantity |
|---|---|---|
| Current Availability | – | – |
There is no forecast for this quantity request.
Does it just not fit? Please contact us.Simply contact our service team for special orders and bulk quantities.Contact us