Datasheet > EP53A7LQI

EP53A7LQI

更新时间： 2022-02-26 11:39:00

品牌	Logo	应用领域
阿尔特拉 - ALTERA		/
页数	文件大小	规格书
19页	998K
描述
1A PowerSoC Light Load Mode Buck Regulator with Integrated Inductor

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EP53A7LQI 数据手册

Enpirion^®Power Datasheet

EP53A7LQI/EP53A7HQI 1A PowerSoC

Light Load Mode Buck Regulator

with Integrated Inductor

Description

Features

The EP53A7xQI (x = L or H) is a 1000mA

PowerSOC. The EP53A7xQI integrates MOSFET

switches, control, compensation, and the

magnetics in an advanced 3mm x 3mm QFN

Package.

• Integrated Inductor Technology

• 3mm x 3mm x 1.1mm QFN package

• Total Solution Footprint < 21mm²

• Low V_OUTripple for RF compatibility

• High efficiency, up to 94%

Integrated magnetics enables a tiny solution

footprint, low output ripple, low part-count, and

high reliability, while maintaining high efficiency.

The complete solution can be implemented in as

little as 21mm².

• 1000mA continuous output current

• 55µA quiescent current

• Less than 1µA standby current

A proprietary light load mode (LLM) provides high • 5 MHz switching frequency

efficiency in light load conditions.

• 3 pin VID for glitch free voltage scaling

The EP53A7xQI uses a 3-pin VID to easily select

the output voltage setting. Output voltage

settings are available in 2 optimized ranges

providing coverage for typical V_OUTsettings.

• V_OUTRange 0.6V to V – 0.5V

• Short circuit and over current protection

• UVLO and thermal protection

• IC level reliability in a PowerSOC solution

The VID pins can be changed on the fly for fast

dynamic voltage scaling. EP53A7LQI further has

the option to use an external voltage divider.

Application

• Portable wireless and RF applications

The EP53A7xQI offers the optimal combination

of very small solution footprint and advanced

performance features.

• Solid state storage applications

• Space constrained applications requiring high

efficiency and very small solution size

3.5mm

100 ohm

4.7uF

V_OUT

100 Ohm

PVIN

V_OUT

V_IN

V_SENSE

AVIN

ENABLE

LLM

10µF

4.7µF

V_FB

V_S0

EP53A7xQI

6mm

V_S1

V_S2

AGND

PGND

10uF

Figure 2: Typical Application Schematic

Figure 1: Total Solution Footprint

www.altera.com/enpirion

01543

October 11, 2013

Rev D

12 3 4 5 6 7...19

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