IC manufacturers Analog Devices
IC manufacturers (104)
- 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 (97)
- Alpha & Omega Semiconductor (37)
- AnalogySemi (3)
- AnDAPT Inc (204)
- Anpec (13)
- AXElite (2)
- Backward (6)
- Bright Power Semiconductor (1)
- Broadcom (45)
- Cambridge GaN Devices (18)
- Chipanalog Micro (10)
- Cologne Chips (1)
- Convenient Power (1)
- Dialog Semiconductor (12)
- Diodes Incorporated (254)
- Divimath (8)
- Elmos AG (1)
- EPC (135)
- 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 (30)
- Littelfuse (1)
- Lumissil Microsystems (8)
- M3 Technology (M3Tek) (7)
- Macnica (22)
- Marvell Semiconductor (1)
- MaxLinear (181)
- Menlo Micro (1)
- MikroE (21)
- MindCet (2)
- Monolithic Power Systems (979)
- Navitas Semiconductor Inc (6)
- NewEdge Technologies, Inc. (1)
- Nexperia (38)
- Nisshinbo Micro Device Inc. (10)
- Nordic Semiconductor (1)
- Novosense Micro (1)
- NXP (327)
- O2 Micro International Ltd (10)
- On Bright (7)
- Panasonic (2)
- PN Junction Semiconductor (2)
- Power Integrations (115)
- Powermat (1)
- Pulsiv (19)
- Qorvo (95)
- Realsil SuRealsil(tek) Microelectronics (1)
- Richtek (297)
- Sanken Electric Co., Ltd. (16)
- Sckipio (6)
- Semtech (87)
- SG-Micro (49)
- SiFive (2)
- Silanna Semiconductor (9)
- Silergy Corporation (30)
- Silicon Laboratory Inc. (103)
- Silicontent Technology (59)
- Silvertel (60)
- Skycore Semiconductors (1)
- Skyworks (33)
- Southchip (8)
- Summit Wireless (1)
- Tagore Tech (7)
- Taiwan Semiconductor (1)
- TDK Corporation (1)
- Tempo Semiconductor (1)
- Torex (37)
- Toshiba (25)
- Transphorm (21)
- TransSIP (2)
- Union (21)
- uPI Semiconductor (2)
- Valens Semiconductor (30)
- Wise Integration (1)
- Wolfspeed (22)
- Xilinx (22)
- XL Semiconductor (3)
- XYSemi (62)
Overview
| Topology | Flyback Converter |
| Input voltage | 10-40 V |
| Switching frequency | 80-250 kHz |
| Output 1 | 15 V / 2 A |
| Output 2 | 15 V / 3 A |
| Output 3 | 15 V / 1 A |
| IC revision | LT3748EMS |
Description
The LT®3748 is a switching regulator controller specificallydesigned for the isolated flyback topology and capable ofhigh power. It drives a low side external N-channel powerMOSFET from an internally regulated 7V supply. No thirdwinding or opto-isolator is required for regulation as thepart senses the isolated output voltage directly from theprimary-side flyback waveform.
Features
- 5V to 100V Input Voltage Range
- 1.9A Average Gate Drive Source and Sink Current
- Boundary Mode Operation
- No Transformer Third Winding or Opto-Isolator Required for Regulation
- Primary-Side Winding Feedback Load Regulation
- VOUT Set with Two External Resistors
- INTVCC Pin for Control of Gate Driver Voltage
- Programmable Soft Start
- Programmable Undervoltage Lockout
- Available in MSOP Package
Typical applications
- Military and High Temperature Applications
- Isolated Industrial Power Supplies
- Telecom and Industrial
- High Power Automotive Supplies
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 | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 750311624 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748 | 10 - 40 V (DC) | 15 | 1 | 8 | 9 | 1.5:1:0.5 | 8 | 0.25 | 1500 | EP13 | LT3575 & LT3748 | ||
| 750311599 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748 | 20 - 48 V (DC) | 15 | 2 | 10 | 8 | 1.5:1:0.67 | 12 | 1 | 1500 | EFD20 | LT3748 | ||
| 750311591 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748 | 20 - 48 V (DC) | 15 | 3 | 10 | 8 | 1.5:1:0.67 | 20 | 0.4 | 1500 | EFD25 | LT3748 | ||
| 750311600 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748 | 30 - 75 V (DC) | 15 | 2 | 10 | 12 | 2:1:0.67 | 11 | 0.4 | 1500 | EFD20 | LT3748 | ||
| 750311595 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748 | 30 - 75 V (DC) | 15 | 3 | 10 | 12 | 2:1:0.8 | 16 | 0.4 | 1500 | EFD25 | LT3748 |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 750311624 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | |
| 750311599 | SPEC | |
| 750311591 | SPEC | |
| 750311600 | SPEC | |
| 750311595 | SPEC |
| Samples |
|---|
| 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 | Samples |
|---|
