Le blog de l'entreprise Mingjiada Supply ADI Charge Pumps, Supply LTC3245 Buck-Boost DC/DC Converter, LTC3255 Step-Down DC/DC Converter

Mingjiada Supply ADI Charge Pumps, Supply LTC3245 Buck-Boost DC/DC Converter, LTC3255 Step-Down DC/DC Converter

Shenzhen Mingjiada Electronics Co., Ltd. — Long-term supplier of a wide range of ADI charge pump DC/DC converters, including the LTC3245 buck-boost DC/DC converter and the LTC3255 buck DC/DC converter. These products cater to typical requirements such as wide input voltage ranges, low-noise buck conversion and buck-boost conversion, and are suitable for applications in the industrial, automotive, telecommunications and instrumentation sectors.

The LTC3245 is a switch-capacitor buck-boost DC/DC converter introduced by ADI, capable of generating a stable output (3.3V, 5V or adjustable) from an input ranging from 2.7V to 38V. The device utilises switch-capacitor fractional conversion to maintain regulation over a wide input voltage range. The internal circuitry automatically selects the conversion ratio to optimise efficiency as input voltage and load conditions vary. No inductor is required.

The LTC3255 is a switch-capacitor step-down DC/DC converter from ADI that can generate a stable output (adjustable from 2.4 V to 12.5 V) from an input ranging from 4 V to 48 V. In applications where the input voltage exceeds twice the output voltage, a 2:1 capacitive charge pump extends the output current capability beyond the input supply current limit. Under no-load conditions, Burst Mode® operation reduces the VIN quiescent current to 16 μA.

[ADI] LTC3245 — Wide VIN Range, Low-Noise, 250mA Buck-Boost Charge Pump
Key Features:
2.7V to 38V VIN range
IQ = 18μA (active mode); 4μA (shutdown mode)
Conversion efficiency from 12V to 5V = 81%
Multi-mode operation with automatic mode switching (2:1, 1:1, 1:2)
Low-noise, constant-frequency operation
Pin-selectable Burst Mode® operation
VOUT: fixed at 3.3V, 5V or adjustable (2.5V to 5V)
IOUT up to 250mA
Over-temperature and short-circuit protection
Operating junction temperature: 150°C (maximum)
Enhanced thermal performance 12-pin MSOP and low-profile 12-pin (3mm x 4mm) DFN packages
Models supplied by Mingjiada Electronics:
LTC3245EDE
LTC3245EMSE
LTC3245HMSE
LTC3245IDE
LTC3245MPMSE
LTC3245JMSE

LTC3255 – Wide VIN Range, Fault Protection, 50mA Buck Charge Pump
Key Features:
Input Voltage Range: 4V to 48V
Adjustable Regulated Output: 2.4V to 12.5V
Output current: 50mA (maximum)
Quiescent current of 16μA in regulated mode and under no-load conditions
Input fault protection: –52V to 60V
Multi-mode charge pump (2:1, 1:1) with automatic mode switching maintains regulation across a wide VIN range
Input voltage parallel mode suitable for current-fed applications
Power-good output
Over-temperature and short-circuit protection
Operating junction temperature: 150°C (maximum)
Enhanced thermal performance 10-pin MSOP and 10-pin (3mm x 3mm) DFN packages
Models supplied by Mingjiada Electronics:
LTC3255EDD
LTC3255EMSE
LTC3255HDD
LTC3255HMSE
LTC3255IDD
LTC3255IMSE
LTC3255MPDD
LTC3255MPMSE

Mingjiada Electronics is a long-term supplier of the [ADI] LTC3245 and LTC3255 DC/DC converters (charge pumps). The LTC3245 is suitable for applications such as automotive ECU and CAN transceiver power supplies, industrial internal power supplies, and low-power 12V to 5V conversions; whilst the LTC3255 is suitable for industrial control, factory automation, sensors, Supervisory Control and Data Acquisition (SCADA) systems, internal power supplies, and as a current-boost regulator for 4mA to 20mA current loops.

For further product details regarding the [ADI] LTC3245 and LTC3255, or to enquire about sample prices, please visit the Mingjiada Electronics website (https://www.integrated-ic.com/) for further supply information.