Datasheet > EN5312QI

EN5312QI

更新时间： 2024-01-15 21:52:49

品牌	Logo	应用领域
ENPIRION		稳压器电感器开关输入元件 LTE
页数	文件大小	规格书
16页	531K
描述
1A Synchronous Buck Regulator With Integrated Inductor

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EN5312QI 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.82
控制模式：	VOLTAGE-MODE	JESD-30 代码：	R-PQCC-N20
端子数量：	20	最高工作温度：	85 °C
最低工作温度：	-40 °C	最大输出电流：	1 A
封装主体材料：	PLASTIC/EPOXY	封装代码：	QCCN
封装等效代码：	LCC20,.16X.2,25	封装形状：	RECTANGULAR
封装形式：	CHIP CARRIER	认证状态：	Not Qualified
子类别：	Switching Regulator or Controllers	表面贴装：	YES
最大切换频率：	4000 kHz	温度等级：	INDUSTRIAL
端子形式：	NO LEAD	端子节距：	0.635 mm
端子位置：	QUAD	Base Number Matches：	1

EN5312QI 数据手册

EN5312QI

1A Synchronous Buck Regulator

With Integrated Inductor

Revised March 2007

RoHS Compliant

Featuring Integrated Inductor Technology

Product Overview

V_IN

The Ultra-Low-Profile EN5312QI is targeted to

applications where board area and profile are

critical. EN5312QI is a complete power

conversion solution requiring only two low cost

ceramic MLCC caps. Inductor, MOSFETS,

PWM, and compensation are integrated into a

tiny 5mm x 4mm x 1.1mm QFN package. The

EN5312QI is engineered to simplify design and

UVLO

Thermal Limit

Current Limit

ENABLE

Soft Start

P-Drive

N-Drive

Logic

V_OUT

(-)

PWM

Comp

(+)

GND

V_SENSE

Sawtooth

Generator

to minimize layout constraints.

4 MHz

Compensation

Network

switching frequency and internal type III

compensation provides superior transient

(-)

Switch

Error

Amp

V_FB

response.

With a 1.1 mm profile, the

(+)

EN5312QI is ideal for space and height

constrained applications.

DAC

Voltage

Select

VREF

Package Boundry

A 3-pin VID output voltage selector provides

seven pre-programmed output voltages along

with an option for external resistor divider.

Output voltage can be programmed on-the-fly

to provide fast, dynamic voltage scaling.

VS0 VS1 VS2

Product Highlights

• Integrated Planar Inductor

Typical Application Circuit

• Designed for low noise/low EMI

• Very small solution foot print*

ENABLE

V_Sense

V_OUT

V_IN

V_in

V_out

V_FB

• Only two low cost MLCC caps required

• RoHS compliant; MSL 3 260°C reflow

• 5mm x 4mm x1.1mm QFN package

• Wide 2.4V to 5.5V input range

• 1000mA continuous output current

• Less than 1 µA standby current.

• High efficiency, up to 95%

4.7µF

10µF

V_S0

V_S1

V_S2

Voltage

Select

GND

Figure 1. Typical application circuit.

• Excellent transient performance

• Very low ripple voltage; 5mV_p-pTypical

• 3 Pin VID Output Voltage select

• External divider: 0.6V to V_IN-V_dropout

• 4 MHz switching frequency

Applications

• LDO replacement for improved thermals

• FPGA, DSP, ASIC, IO & Peripherals

• Area constrained applications

• Set top box/home gateway

• Smart phones and PDAs

• 100% duty cycle capable

• Short circuit and over current protection

• UVLO and thermal protection

• VoIP and Video phones

• Personal Media Players

*Optimized PCB Layout file downloadable from the Enpirion Website to assure first pass design success.

12 3 4 5 6 7...16

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