Le blog de l'entreprise Mingjiada Supply ADI LT8570 Series Boost/SEPIC/Inverting DC/DC Converter

Mingjiada Supply ADI LT8570 Series Boost/SEPIC/Inverting DC/DC Converter

In automotive electronics, industrial sensors, portable instruments and telecommunications equipment, power supply designs often require the generation of high-voltage offsets, negative power supplies or wide-range buck-boost outputs from low-voltage inputs. ADI’s LT8570 series of boost/SEPIC/negative-output DC/DC converters offers a compact and flexible solution for low-power, high-voltage power supply designs, featuring a wide input range of 2.5 V to 40 V, a 65 V internal switch, and support for boost, SEPIC and inverting topologies.

[ADI] LT8570 – Boost/SEPIC/Negative-Output DC/DC Converter with 65V Switch, Soft-Start and Synchronisation
The LT8570 is a PWM DC/DC converter. The device incorporates a 0.5A, 65V power switch and can be configured to operate as a boost, SEPIC or negative-output converter.
The LT8570 features an adjustable oscillator, the frequency of which is set by a resistor connected between the RT pin and ground. Furthermore, the LT8570 can be synchronised to an external clock. The device’s switching frequency can operate freely or be synchronised, and can be set between 200 kHz and 1.5 MHz.

Detailed LT8570 Product Features:
65V power switch
Current limit option: 0.5A
Adjustable switching frequency
VOUT set by a single feedback resistor
Can be synchronised to an external clock
High-gain SHDN pin accepts slowly changing input signals
Wide input voltage range: 2.55V to 40V
Low VCESAT switch
Integrated soft-start function
Easily configurable as a boost, SEPIC or negative-output converter
User-configurable under-voltage lockout (UVLO)

With its wide input range, 65V switch and multi-topology capability, the LT8570 series is widely used in:
Vacuum fluorescent display (VFD) bias power supplies
TFT-LCD bias power supplies
GPS receivers
DSL modems
Localised power supplies

Availability Information
Shenzhen Mingjiada Electronics Co., Ltd. — a long-standing distributor of the ADI/Linear product range — maintains a stock of LT8570 series PWM DC/DC converters, including but not limited to the following:
LT8570EDD
LT8570EDD-1
LT8570EMS8E
LT8570IMS8E-1
LT8570IMS8E
LT8570IDD
LT8570IDD-1
LT8570HMS8E-1
LT8570HMS8E
LT8570HDD
LT8570HDD-1
Mingjiada Electronics supports sample orders, small-batch purchases and full-reel 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.