Le blog de l'entreprise Mingjiada Supply ADI LTC3784 PolyPhase Synchronous Boost Converter Controller

Mingjiada Supply ADI LTC3784 PolyPhase Synchronous Boost Converter Controller

Shenzhen Mingjiada Electronics Co., Ltd. — Long-term supplier of ADI/LINEAR power management devices, including the LTC3784: a 60V multi-phase synchronous boost controller with PassThru functionality. This device is designed for wide input voltage applications such as automotive electronics, industrial bus systems, communications power supplies and battery-powered systems, and is suitable for power supply designs requiring high-efficiency boost conversion, multi-phase scaling and input pass-through capability.

[ADI/LINEAR] LTC3784 — 60V Multi-Phase Synchronous Boost Controller with PassThru
The LTC3784 is a high-performance, multi-phase (PolyPhase®), single-output, synchronous boost converter controller designed to drive two N-channel power MOSFET stages out of phase. Multi-phase operation reduces input and output capacitance requirements and allows the use of smaller inductors than those required by comparable single-phase solutions. The synchronous rectification employed enhances efficiency, reduces power dissipation and lowers thermal requirements, thereby simplifying high-power boost applications.
An input supply range of 4.5V to 60V accommodates a wide variety of system architectures and battery chemistries. When bias is applied from the output of a boost converter or another auxiliary power supply, the LTC3784 is capable of operating on an input supply as low as 2.3V after start-up. The device’s operating frequency can be set within a range of 50kHz to 900kHz, or synchronised to an external clock via an internal PLL.

Key features of the LTC3784:
PolyPhase® operation reduces the required input and output capacitance as well as supply-induced noise
Synchronous operation for higher efficiency and reduced heat dissipation
Wide VIN range: 4.5V to 60V (absolute maximum 65V); operating voltage as low as 2.3V after start-up
Output voltage up to 60V
±1% 1.200V reference voltage
RSENSE or inductor DCR current sensing
100% duty cycle capability for synchronous MOSFETs
Low quiescent current: 28 μA
Lock-in frequency (75 kHz to 850 kHz)
Programmable fixed frequency (50 kHz to 900 kHz)
Good-supply-output voltage monitor
Low shutdown current, IQ < 4 μA
Internal LDO uses VBIAS or EXTVCC to supply the gate driver
Thermally enhanced, low-profile 28-pin 4mm × 5mm QFN package and narrow-body SSOP package

LTC3784 Typical Applications:
Automotive Electronics: Start/stop systems, pre-boost, auxiliary vehicle power supplies, wide-input automotive buses
Industrial Automation: 24V industrial bus boost, PLC power supplies, sensor and actuator power supplies
Communications and Networking: Wide-input power modules, backup battery boost, distributed power supplies
Battery-Powered Equipment: Multi-cell battery boost to high-voltage buses, portable instrument power supplies
Test and Medical Equipment: Boost power supplies requiring high efficiency, low ripple and multi-phase expansion

Availability Information
Shenzhen Mingjiada Electronics Co., Ltd. — Long-standing distributor of ADI/LINEAR product lines, including the LTC3784 series synchronous boost controllers. The following are regularly in stock:
LTC3784EGN
LTC3784EUFD
LTC3784HGN
LTC3784HUFD
LTC3784IGN
LTC3784IUFD
LTC3784MPGN
LTC3784MPUFD
Mingjiada Electronics supports sample orders, small-batch purchases and full-reel supply. To confirm specific part numbers, stock levels and real-time prices, please contact Mingjiada Electronics directly for a quotation.

Furthermore, Mingjiada Electronics supplies a wide range of electronic components, including integrated circuits (ICs), 5G chips, new energy ICs, IoT chips, Bluetooth chips and automotive chips, offering customers a one-stop procurement experience. Mingjiada Electronics maintains ample stock, with 2 million electronic component part numbers in stock, ensuring customers can quickly obtain the products they require.

For further information on the LTC3784 series of synchronous boost controllers or to enquire about the prices of other electronic components, please visit the Mingjiada Electronics website (https://www.integrated-ic.com/) for more supply details.