Datasheet > IRU1117CPPBF

IRU1117CPPBF

更新时间： 2024-02-25 20:43:30

品牌	Logo	应用领域
英飞凌 - INFINEON		输出元件调节器
页数	文件大小	规格书
10页	137K
描述
Adjustable Positive LDO Regulator, 1.25V Min, 5.5V Max, 1.2V Dropout, PSSO2, PLASTIC, ULTRA THIN PACKAGE-3

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IRU1117CPPBF 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	MODULE
包装说明：	TO-252,	针数：	2
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.82
最大回动电压 1：	1.2 V	最大差分输入-输出电压：	7 V
最小差分输入-输出电压：	1.3 V	JESD-30 代码：	R-PSSO-G2
长度：	6.145 mm	功能数量：	1
端子数量：	2	工作温度TJ-Max：	150 °C
工作温度TJ-Min：		最大输出电流 1：	0.8 A
最大输出电压 1：	5.5 V	最小输出电压 1：	1.25 V
封装主体材料：	PLASTIC/EPOXY	封装代码：	TO-252
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
峰值回流温度（摄氏度）：	260	认证状态：	Not Qualified
调节器类型：	ADJUSTABLE POSITIVE SINGLE OUTPUT LDO REGULATOR	座面最大高度：	2.16 mm
表面贴装：	YES	端子形式：	GULL WING
端子节距：	2.285 mm	端子位置：	SINGLE
处于峰值回流温度下的最长时间：	40	宽度：	6.04 mm
Base Number Matches：	1

IRU1117CPPBF 数据手册

IRU1117(PbF)

PIN DESCRIPTIONS

PIN # PIN SYMBOL PIN DESCRIPTION

Adj

A resistor divider from this pin to the VOUT pin and ground sets the output voltage.

VOUT

The output of the regulator. A minimum of 10µF capacitor must be connected from this pin

to ground to insure stability.

VIN

The input pin of the regulator. Typically a large storage capacitor is connected from this

pin to ground to insure that the input voltage does not sag below the minimum dropout

voltage during the load transient response. This pin must always be 1.3V higher than VOUT

in order for the device to regulate properly.

BLOCK DIAGRAM

VIN

2 VOUT

1.25V

CURRENT

LIMIT

THERMAL

SHUTDOWN

1 Adj

Figure 2 - Simplified block diagram of the IRU1117.

APPLICATION INFORMATION

Introduction

The IRU1117 adjustable Low Dropout (LDO) regulator is initial voltage, reducing the overall system cost with the

a three-terminal device which can easily be programmed need for fewer output capacitors. This is a key require-

with the addition of two external resistors to any volt- ment for today’s low voltage IC applications that typi-

ages within the range of 1.25 to 5.5V. This regulator cally need 3.3V supply and are often generated from the

only needs 1.3V differential to maintain output regula- 5V supply. Other applications such as high speed

tion. Unlike the first generation of the three-terminal regu- memory termination need to switch the load current from

lators such as LM117 that required 3V differential be- zero to full load in tens of nanoseconds at their pins,

tween the input and the regulated output.

which translates to an approximately 300 to 500ns cur-

rent step at the regulator. In addition, the output voltage

The IRU1117 is specifically designed to meet the fast tolerances are sometimes tight and they include the tran-

current transient needs as well as providing an accurate sient response as part of the specification.

Rev. 1.8

www.irf.com

1 234 5 6 7...10

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