company blog about Mingjiada Supply ADI LT1934 And LT1956 Series Step-Down Switching Regulators

Mingjiada Supply ADI LT1934 And LT1956 Series Step-Down Switching Regulators

In applications such as industrial control, automotive electronics, telecommunications equipment and portable instruments, a wide input voltage range, low quiescent power consumption and a compact form factor are key selection criteria for step-down switching regulators. Mingjiada Electronics has long supplied the [ADI] LT1934 | LT1956 series of step-down switching regulators. These devices cater to power supply design requirements ranging from micro-power to higher output currents, and are suitable for a wide range of applications including industrial, automotive, telecommunications and portable equipment.

LT1934 – A micro-power step-down switching regulator in ThinSOT and DFN packages
Description: The LT1934 is a micro-power step-down DC/DC converter featuring an internal 400mA power switch and housed in a flat (only 1mm high) ThinSOT package. With its wide input voltage range of 3.2V to 34V, the LT1934 is capable of regulating a wide variety of power sources, ranging from 4-cell alkaline batteries and 5V logic rails to unregulated mains adaptors and lead-acid batteries, amongst others. The device has a quiescent current of just 12μA; furthermore, a zero-current shutdown mode disconnects the load from the input supply, thereby simplifying power management in battery-powered systems.

LT1956 – High-Voltage, 1.5A, 500kHz Buck Switching Regulator
Description: The LT1956 is a 500 kHz monolithic step-down switching regulator capable of handling input voltages up to 60 V. A high-efficiency 1.5 A, 0.2 Ω switch is integrated onto the chip, along with all necessary oscillators, controllers and logic circuits. The device utilises a current-mode architecture, enabling fast transient response and good loop stability.

Key Features:
The LT1934 series utilises a monolithic integrated design with an on-chip power switch, requiring fewer external components and helping to reduce PCB footprint. Its micro-power characteristics help to reduce system standby current, whilst the high-frequency switching design allows for further reduction in inductor and capacitor sizes, making it suitable for portable and space-constrained applications.
The LT1956 series, on the other hand, is designed for higher-power loads, offering higher output current capability and lower switching frequencies, facilitating a balance between efficiency, thermal management and the size of external components. Both series typically feature protection functions such as cycle-by-cycle current limiting and thermal shutdown, and support a wide input voltage range, making them suitable for complex power supply environments such as those found in industrial power supplies and automotive electronics.

Shenzhen Mingjiada Electronics Co., Ltd. — a long-standing distributor of the ADI/LINEAR product range — maintains a stock of LT1934/LT1956 series buck switching regulators, including but not limited to the following:
LT1934EDCB
LT1934EDCB-1
LT1934ES6
LT1934ES6-1
LT1934IDCB
LT1934IDCB-1
LT1934IS6
LT1934IS6-1
LT1956EGN
LT1956EFE
LT1956EFE-5
LT1956EGN-5
LT1956IFE
LT1956IFE-5
LT1956IGN
LT1956IGN-5

Applications:
The LT1934 series is suitable for low-power applications such as portable instruments and meters, sensor power supplies, battery-powered devices, local step-down power supplies for industrial control boards, and auxiliary power supplies for communication modules.
The LT1956 series is suitable for industrial control power supplies, auxiliary power supplies for automotive electronics, distributed power supplies for communication equipment, set-top boxes and consumer electronics power supplies, as well as step-down conversion designs requiring load currents in the 1A range.

Mingjiada Electronics supports both sample procurement and bulk supply. To confirm specific part numbers, stock levels and real-time prices, please visit the Mingjiada Electronics website (https://www.integrated-ic.com/) for further supply details.