ELM612DA中文资料3A 36V PWM降压 DC/DC转换器数据手册ELM-Tech规格书

描述 Description

ELM612DA is a of step-down switching regulator with PWM control, reference voltage source, oscillation circuit, error amplifier, internal PMOS, etc. ELM612DA provides low-ripple power, high efficiency, and excellent transient characteristics; PWM control circuit is able to vary the duty ratio linearly from 0 up to 100%. ELM612DA also contains error amplifier circuit as well as soft-start circuit that prevents overshoot at during startup. Internal enable function, over current protect function and short circuit protect function will reduce the operation frequency from 150kHz to 30kHz when overmuch current or short circuit occurs. Meanwhile, internal compensation block is able to minimize the quantity of required external component. With internal P-channel Power MOS, and externally connected coil, capacitor, and diode, ELM612DA is able to function as step-down switching regulator. By the small package of SOP-8, ELM612DA is capable of working as ideal power supply units for many devices while providing outstanding features such as low current consumption. Since this converter accommodates input voltage up to 36V, ELM612DA is also suitable for AC adapter applications.

特性 Features

• Soft-start
• Thermal shutdown protection
• Short circuit protection
• Built-in internal P-channel MOS
• Input voltage5.5V to 36V
• Output voltage0.8V to Vin
• Output current3.0A
• Duty ratio0% to 100%
• Constant frequencyTyp.150kHz
• PackageSOP-8
• DatasheetELM612DA

应用 Application

• PC motherboard
• LCD monitor
• Graphic card
• DVD, Blu-ray player
• Telecom equipment
• ADSL modem
• Printer and other peripheral equipment
• Microcomputer power supply
• Network power supply