Datasheet > EL7564

EL7564

更新时间： 2024-11-08 22:50:59

品牌	Logo	应用领域
英特矽尔 - INTERSIL		稳压器
页数	文件大小	规格书
17页	643K
描述
Monolithic 4 Amp DC/DC Step-Down Regulator

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EL7564 数据手册

EL7564

Data Sheet

May 9, 2005

FN7297.3

Monolithic 4 Amp DC/DC Step-Down

Regulator

Features

• Integrated synchronous MOSFETs and current mode

controller

The EL7564 is an integrated, full-featured synchronous step-

down regulator with output voltage adjustable from 1.0V to

3.8V. It is capable of delivering 4A continuous current at up

to 95% efficiency. The EL7564 operates at a constant

frequency pulse width modulation (PWM) mode, making

external synchronization possible. Patented on-chip

resistorless current sensing enables current mode control,

which provides cycle-by-cycle current limiting, over-current

protection, and excellent step load response. The EL7564

features power tracking, which makes the start-up

sequencing of multiple converters possible. A junction

temperature indicator conveniently monitors the silicon die

temperature, saving the designer time on the tedious

thermal characterization. The minimal external components

and full functionality make this EL7564 ideal for desktop and

portable applications.

• 4A continuous output current

• Up to 95% efficiency

• 4.5V to 5.5V input voltage

• Adjustable output from 1V to 3.8V

• Cycle-by-cycle current limit

• Precision reference

• ±0.5% load and line regulation

• Adjustable switching frequency to 1MHz

• Oscillator synchronization possible

• Internal soft start

• Over voltage protection

The EL7564 is specified for operation over the -40°C to

+85°C temperature range.

• Junction temperature indicator

• Over temperature protection

• Under voltage lockout

Typical Application Diagrams

EL7564

[20-PIN SO (0.300”)]

TOP VIEW

• Multiple supply start-up tracking

• Power good indicator

• 20-pin SO (0.300”) package

• 28-pin HTSSOP package

• Pb-Free available (RoHS compliant)

0.1µF

EN 20

FB 19

VREF

390pF

2 SGND

3 COSC

4 VDD

5 VTJ

Applications

• DSP, CPU core and IO supplies

PG 18

22Ω

VDRV 17

VHI 16

0.22µF

• Logic/Bus supplies

0.22µF

OUT

• Portable equipment

3.3V, 4A

6 PGND

7 PGND

8 VIN

LX 15

4.7µH

2.2nF

• DC/DC converter modules

• GTL + Bus power supply

LX 14

C10

330µF

2.37kΩ

100pF

330µF

PGND 13

PGND 12

PGND 11

9 STP

1kΩ

10 STN

Typical Application Diagrams continued on page 3

Manufactured Under U.S. Patent No. 5,7323,974

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-352-6832 | Intersil (and design) is a registered trademark of Intersil Americas Inc.

All other trademarks mentioned are the property of their respective owners.

12 3 4 5 6 7...17

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与EL7564相关器件

型号	品牌	获取价格	描述	数据表
EL7564C	ELANTEC	获取价格	Monolithic 4 Amp DC:DC Step-down Regulator
EL7564CM	ELANTEC	获取价格	Monolithic 4 Amp DC:DC Step-down Regulator
EL7564CM	INTERSIL	获取价格	Monolithic 4 Amp DC/DC Step-Down Regulator
EL7564CM-T13	ELANTEC	获取价格	Monolithic 4 Amp DC:DC Step-down Regulator
EL7564CM-T13	INTERSIL	获取价格	Monolithic 4 Amp DC/DC Step-Down Regulator
EL7564CMZ	INTERSIL	获取价格	Monolithic 4 Amp DC/DC Step-Down Regulator
EL7564CMZ-T13	INTERSIL	获取价格	Monolithic 4 Amp DC/DC Step-Down Regulator
EL7564CRE	ELANTEC	获取价格	Monolithic 4 Amp DC:DC Step-down Regulator
EL7564CRE	INTERSIL	获取价格	Monolithic 4 Amp DC/DC Step-Down Regulator
EL7564CRE-T13	INTERSIL	获取价格	Monolithic 4 Amp DC/DC Step-Down Regulator

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