IC manufacturers (97)
- All manufacturers
Analog Devices
Infineon Technologies
Microchip
Onsemi
Renesas
ROHM
STMicroelectronics
Texas Instruments
- 3peak incorporated (16)
- Ablic (24)
- Advanced Power (4)
- Allegro Microsystems (84)
- Alpha & Omega Semiconductor (37)
- AnalogySemi (3)
- AnDAPT Inc (181)
- Anpec (13)
- AXElite (2)
- Backward (6)
- Broadcom (47)
- Cambridge GaN Devices (18)
- Chipanalog Micro (10)
- Cologne Chips (1)
- Convenient Power (1)
- Dialog Semiconductor (12)
- Diodes Incorporated (232)
- Divimath (8)
- Elmos AG (1)
- EPC (99)
- e-Peas Semiconductors (1)
- Eta Solutions Co. Ltd. (9)
- GaN Systems (7)
- GaNPower (3)
- Giantec (1)
- Gstek Wuxi (1)
- Helix Semiconductor (7)
- Ikanos (3)
- IKON (1)
- Indie Semiconductor (5)
- Innovision Semiconductor Inc (2)
- Intel (80)
- Inventchip Technology (3)
- ISSI (51)
- JoulWatt (20)
- KDPOF (3)
- Kinetic Technology (9)
- Lattice semiconductor Corporation (20)
- Littelfuse (1)
- M3 Technology (M3Tek) (7)
- Macnica (16)
- MaxLinear (178)
- MikroE (19)
- MindCet (2)
- Monolithic Power Systems (930)
- Navitas Semiconductor Inc (6)
- NewEdge Technologies, Inc. (1)
- Nexperia (34)
- Nisshinbo Micro Device Inc. (10)
- Novosense Micro (1)
- NXP (313)
- O2 Micro International Ltd (10)
- On Bright (7)
- Panasonic (2)
- PN Junction Semiconductor (2)
- Power Integrations (112)
- Powermat (1)
- Pulsiv (19)
- Qorvo (86)
- Realsil SuRealsil(tek) Microelectronics (1)
- Richtek (296)
- Sanken Electric Co., Ltd. (16)
- Sckipio (6)
- Semtech (90)
- SG-Micro (32)
- Silanna Semiconductor (8)
- Silergy Corporation (30)
- Silicon Laboratory Inc. (105)
- Silicontent Technology (59)
- Silvertel (53)
- Skycore Semiconductors (1)
- Skyworks (29)
- Southchip (8)
- Summit Wireless (1)
- Tagore Tech (4)
- Taiwan Semiconductor (1)
- TDK Corporation (1)
- Tempo Semiconductor (1)
- Torex (37)
- Toshiba (25)
- Transphorm (21)
- TransSIP (2)
- Union (21)
- uPI Semiconductor (2)
- Valens Semiconductor (18)
- Wolfspeed (8)
- Xilinx (22)
- XL Semiconductor (3)
- XYSemi (62)
Texas Instruments LM5122-Q1
LM5122/-Q1 Wide-Input Synchronous Boost Controller With Multiple Phase Capability
Overview
| Topology | Boost Converter |
| Input voltage | 9-20 V |
| Switching frequency | 400-975 kHz |
| Output 1 | 24 V / 4.5 A |
| Output 2 | 28 V / 7 A |
| IC revision | G |
Description
The LM5122 is a multiphase capable synchronous boost controller intended for high-efficiency synchronous boost regulator applications. The controlmethod is based upon peak current mode control. Current mode control provides inherent line feed-forward, cycle-by-cycle current limiting and ease of loop compensation.
The switching frequency is programmable up to 1MHz. Higher efficiency is achieved by two robust Nchannel MOSFET gate drivers with adaptive dead-time control. A user-selectable diode emulation mode also enables discontinuous mode operation for improved efficiency at light load conditions.
An internal charge pump allows 100% duty cycle for high-side synchronous switch (Bypass operation). A 180º phase shifted clock output enables easy multi-phase interleaved configuration. Additional features include thermal shutdown, frequency synchronization, hiccup mode current limit and adjustable line undervoltage lockout.
Features
- AEC-Q100 Grade 1 (TA = –40°C to 125°C)
- Maximum Input Voltage : 65 V
- Min Input Voltage : 3.0 V (4.5 V for startup)
- Output Voltage up to 100 V
- Bypass (VOUT = VIN) Operation
- 1.2 V Reference with ±1.0% Accuracy
- Free-Run/Synchronizable Switching to 1 MHz
- Peak Current Mode Control
- Robust 3 A Integrated Gate Drivers
- Adaptive Dead-Time Control
- Optional Diode Emulation Mode
- Programmable Cycle-by-Cycle Current Limit
- Hiccup Mode Overload Protection
- Programmable Line UVLO
- Programmable Soft-Start
- Thermal Shutdown Protection
- Low Shutdown Quiescent Current: 9 µA
- Programmable Slope Compensation
- Programmable Skip Cycle Mode Reduces Standby Power
- Allows External VCC Supply
- Inductor DCR Current Sensing Capability
- Multiphase Capability
- Thermally Enhanced 20-Pin HTSSOP
Remarks:1)fSW2 Switching frequency 2 is choosed due to max value
2)From Figure 38. Non-Isolated Synchronous Flyback Converter Simplified SchematicOnly I/O is given, but it's a coupled inductor(transformer)
Typical applications
- High Current Boost Power Supply
- 12 V, 24 V, and 48 V Power Systems
- Automotive Start-Stop
- Audio Power Supply
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | H (mm) | Fl (mm) | Packaging | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012207025 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 10 V(DC) | 4.7 µF | ±10% | 10 | 0805 | -55 °C up to +125 °C | 10 | 0.02 GΩ | X7R Class II | 2 | 1.25 | 1.25 | 0.5 | 7" Tape & Reel | – | – | – | – | – | – | – | ||
 | 74435561100 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-HCI SMT Flat Wire High Current Inductor | – | – | – | 1890 | -40 °C up to +150 °C | – | – | – | 18.3 | 18.2 | 8.9 | – | – | 10 | 16.5 | 10 | 21.5 | 6.9 | 14 | WE-PERM 2 |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 885012207025 | SPEC | |
| 74435561100 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | VR (V (DC)) | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | L (mm) | W (mm) | H (mm) | Fl (mm) | Packaging | L (µH) | IRP,40K (A) | ISAT,10% (A) | ISAT,30% (A) | RDC (mΩ) | fres (MHz) | Material | Samples |
|---|
