Datasheet > ELM612DA

ELM612DA

更新时间： 2024-11-24 01:20:55

品牌	Logo	应用领域
ELM		/
页数	文件大小	规格书
8页	1161K
描述
3A 36V PWM step down DC/DC converter

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数据手册

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ELM612DA 数据手册

ELM612DA _{3A 36V PWM step down DC/DC converter}

■General 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.

■Features

■Application

• Input voltage

• Output voltage

• Output current

• Duty ratio

: 5.5V to 36V

: 0.8V to Vin

: 3.0A

• PC motherboard

• LCD monitor

• Graphic card

: 0% to 100%

: Typ.150kHz

• DVD, Blu-ray player

• Telecom equipment

• ADSL modem

• Constant frequency

• Soft-start

• Thermal shutdown protection

• Short circuit protection

• Printer and other peripheral equipment

• Microcomputer power supply

• Network power supply

• Built-in internal P-channel MOS

• Package

: SOP-8

■Maximum absolute ratings

Parameter

VIN power supply voltage

Apply voltage to FB

Apply voltage to EN

Apply voltage to SW

Apply voltage to VC

Power dissipation

Operating temperature range

Storage temperature range

Symbol

Vin

Vfb

Ven

Vsw

Top

Tstg

Limit

-0.3 to +40

Unit

GND-0.3 to Vin

GND-0.3 to Vin+0.3

Vin-20 to Vin+0.3

300

°C

-40 to +85

-65 to +150

Caution: Permanent damage to the device may occur when ratings above maximum absolute ones are used.

Rev.1.1

8 - 1

12 3 4 5 6 7 8

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