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Mingjiada Supply [ADI] LT3502AEDC 500mA, Step-Down DC/DC Regulators

Shenzhen Mingjiada Electronics Co., Ltd. — Long-term supplier of ADI (LT3502AEDC) current-mode PWM buck DC/DC converters. Product details are as follows:

The LT3502AEDC is a high-efficiency buck DC-DC switching regulator housed in a 2mm × 2mm DFN-8 package (with a exposed pad for enhanced heat dissipation). The primary function of the LT3502AEDC is to convert a wide input voltage range of 3V–40V into an adjustable output voltage of 0.8V–32V, while providing a stable output current of 500mA. The LT3502AEDC supports switching frequencies of 1.1MHz or 2.2MHz (selectable via an external pin), enabling the use of miniature inductors and capacitors. This high-frequency capability significantly reduces the overall power supply solution size, making it ideal for space-constrained portable devices and high-density circuit designs.

Key specifications of the LT3502AEDC:  

Input voltage range: 3V to 40V  

Output voltage range: 0.8V to 32V (adjustable)  

Output current: 500mA (continuous)  

Switching frequency: 1.1MHz / 2.2MHz (selectable)  

Quiescent current: 1.5mA (operating mode), shutdown current <2μA

Feedback Voltage: 800mV (reference accuracy ±2%)

Operating Temperature: -40°C to +125°C (junction temperature)

Package Type: DFN-8-EP (2mm × 2mm)

Protection Features: Cycle-by-cycle current limit, short-circuit protection, soft start, over-temperature shutdown

LT3502AEDC Core Product Features:

Wide Input Voltage Compatibility

Supports 3V–40V input, covering common power sources (such as 12V/24V industrial power supplies, automotive batteries), and adapts to complex environments such as cold starts and load dumping.

High-efficiency, low-power design

Conversion efficiency up to 90%+ (typical), static current only 1.5mA, shutdown current <2μA, significantly extending battery device runtime.

Low Noise and Interference Resistance  

Switching frequency exceeds the AM broadcast band (>1.8MHz) to avoid interfering with RF reception; current-mode control optimises transient response and reduces output ripple.

Robust Protection Mechanisms  

Integrated soft-start (suppresses inrush current), cycle-by-cycle current limiting, and frequency foldback (short-circuit protection) ensure reliability under extreme conditions.

The LT3502AEDC, with its ultra-small package, wide input voltage range, and high-frequency low-noise characteristics, is an ideal power solution for space-constrained, high-reliability applications. Mingjiada Electronics has been supplying ADI (LT3502AEDC) buck regulators for a long time. For more information about the LT3502AEDC or to inquire about pricing, please contact Mingjiada Electronics:

QQ: 1668527835  

Phone: 13410018555  

Email: chen13410018555@163.com  

Homepage URL: www.hkmjd.com