FAN2500S27X

更新时间： 2024-01-20 15:55:28

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		线性稳压器IC 调节器电源电路光电二极管输出元件
页数	文件大小	规格书
10页	254K
描述
100 mA CMOS LDO Regulators

阅读下载

中文翻译

获取价格

技术参数
数据手册

如果您发现信息不准确，欢迎纠错

FAN2500S27X 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
零件包装代码：	SOT-23	包装说明：	SOT-23, 5 PIN
针数：	5	Reach Compliance Code：	unknown
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.66	Is Samacsys：	N
可调性：	FIXED	最大回动电压 1：	0.14 V
标称回动电压 1：	0.1 V	最大绝对输入电压：	7 V
最大输入电压：	6.5 V	最小输入电压：	2.7 V
JESD-30 代码：	R-PDSO-G5	JESD-609代码：	e3
长度：	2.9 mm	最大负载调整率：	0.054%
湿度敏感等级：	1	功能数量：	1
输出次数：	1	端子数量：	5
工作温度TJ-Max：	125 °C	工作温度TJ-Min：	-40 °C
最大输出电流 1：	0.1 A	最大输出电压 1：	2.754 V
最小输出电压 1：	2.646 V	标称输出电压 1：	2.7 V
封装主体材料：	PLASTIC/EPOXY	封装代码：	LSSOP
封装等效代码：	TSOP5/6,.11,37	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	包装方法：	TAPE AND REEL
峰值回流温度（摄氏度）：	260	认证状态：	Not Qualified
调节器类型：	FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR	座面最大高度：	1.45 mm
子类别：	Other Regulators	表面贴装：	YES
技术：	CMOS	端子面层：	Matte Tin (Sn)
端子形式：	GULL WING	端子节距：	0.95 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
最大电压容差：	2%	宽度：	1.65 mm
Base Number Matches：	1

FAN2500S27X 数据手册

PRODUCT SPECIFICATION

FAN2500/FAN2501

the device to enter a thermal cycling loop, in which the

Thermal Characteristics

circuit enters a shutdown condition, cools, re-enables, and

then again overheats and shuts down repeatedly due to an

unmanaged fault condition.

The FAN2500/01 is designed to supply 100mA at the

speciﬁed output voltage with an operating die (junction)

temperature of up to 125°C. Once the power dissipation and

thermal resistance is known, the maximum junction

temperature of the device can be calculated. While the power

dissipation is calculated from known electrical parameters,

the thermal resistance is a result of the thermal characteris-

tics of the compact SOT23-5 surface-mount package and the

surrounding PC Board copper to which it is mounted.

Operation of Adjustable Version

The adjustable version of the FAN2500/01 includes an input

pin ADJ which allows the user to select an output voltage

ranging from 1.8V to near V_IN, using an external resistor

divider. The voltage V_ADJpresented to the ADJ pin is fed to

the onboard error ampliﬁer which adjusts the output voltage

until V_ADJis equal to the onboard bandgap reference voltage

of 1.32V(typ). The equation is:

The power dissipation is equal to the product of the input-to-

output voltage differential and the output current plus the

ground current multiplied by the input voltage, or:

R_upper

V_OUT= 1.32V × 1 + ---------------

R_lower

P_D= (V_IN– V_OUT)I_OUT+ V_INI_GND

The total value of the resistor chain should not exceed

250KΩ total to keep the error ampliﬁer biased during

no-load conditions. Programming output voltages very near

V_INneed to allow for the magnitude and variation of the

dropout voltage V_DOover load, supply, and temperature

variations. Note that the low-leakage FET input to the

CMOS Error Ampliﬁer induces no bias current error to the

calculation.

The ground pin current I_GNDcan be found in the charts

provided in the Electrical Characteristics section.

The relationship describing the thermal behavior of the

package is:

T_J(max)– T_A

-------------------------------

P_D(max)

θ_JA

where T_J(max)is the maximum allowable junction tempera-

ture of the die, which is 125°C, and T_Ais the ambient operat-

ing temperature. θ_JAis dependent on the surrounding PC

board layout and can be empirically obtained. While the θ_JC

(junction-to-case) of the SOT23-5 package is speciﬁed at

130°C /W, the θ_JAof the minimum PWB footprint will be at

least 235°C /W. This can be improved upon by providing a

heat sink of surrounding copper ground on the PWB.

Depending on the size of the copper area, the resulting θ_JA

can range from approximately 180°C /W for one square inch

to nearly 130°C /W for 4 square inches. The addition of

backside copper with through-holes, stiffeners, and other

enhancements can also aid in reducing this value. The heat

contributed by the dissipation of other devices located

nearby must be included in design considerations.

General PWB Layout Considerations

To achieve the full performance of the device, careful circuit

layout and grounding technique must be observed. Establish-

ing a small local ground, to which the GND pin, the output

and bypass capacitors are connected, is recommended, while

the input capacitor should be grounded to the main ground

plane. The quiet local ground is then routed back to the main

ground plane using feedthrough vias. In general, the high-

frequency compensation components (input, bypass, and

output capacitors) should be located as close to the device as

possible. The proximity of the output capacitor is especially

important to achieve optimal noise compensation from the

onboard error ampliﬁer, especially during high load condi-

tions. A large copper area in the local ground will provide the

heat sinking discussed above when high power dissipation

signiﬁcantly increases the temperature of the device.

Once the limiting parameters in these two relationships have

been determined, the design can be modiﬁed to ensure that

the device remains within speciﬁed operating conditions.

If overload conditions are not considered, it is possible for

Component-side copper provides signiﬁcantly better thermal

performance for this surface-mount device, compared to that

obtained when using only copper planes on the underside.

REV. 1.0.6 2/14/03

1 2 345 6 7...10

中文翻译

下载PDF

与FAN2500S27X相关器件

型号	品牌	获取价格	描述	数据表
FAN2500S28	FAIRCHILD	获取价格	Fixed Positive LDO Regulator, 2.8V, 0.14V Dropout, CMOS, PDSO5, SOT-23, 5 PIN
FAN2500S285	FAIRCHILD	获取价格	Fixed Positive LDO Regulator, 2.85V, 0.14V Dropout, CMOS, PDSO5, SOT-23, 5 PIN
FAN2500S285X	FAIRCHILD	获取价格	100 mA CMOS LDO Regulators
FAN2500S285X_NL	FAIRCHILD	获取价格	暂无描述
FAN2500S28X	FAIRCHILD	获取价格	100 mA CMOS LDO Regulators
FAN2500S30	FAIRCHILD	获取价格	Fixed Positive LDO Regulator, 3V, 0.14V Dropout, CMOS, PDSO5, SOT-23, 5 PIN
FAN2500S30X	FAIRCHILD	获取价格	100 mA CMOS LDO Regulators
FAN2500S30X_NL	FAIRCHILD	获取价格	Fixed Positive LDO Regulator, 3V, 0.14V Dropout, CMOS, PDSO5, LEAD FREE, SOT-23, 5 PIN
FAN2500S33	FAIRCHILD	获取价格	Fixed Positive LDO Regulator, 3.3V, 0.14V Dropout, CMOS, PDSO5, SOT-23, 5 PIN
FAN2500S33X	FAIRCHILD	获取价格	100 mA CMOS LDO Regulators

与FAN2500S27X相关文章

压敏电阻器在直流电路中的过压保护应用探讨
2024-06-07

1
电感耐压值及其与电感大小的关系
2024-06-07

4
CNY17F光耦合器：特性、应用、封装、引脚功能及替换型号解析
2024-06-07

3
DS1307资料解析：特性、引脚说明、替代推荐
2024-06-07

2

产品中心

服务支持

精选活动

关于我们

帮助中心

FAN2500S27X

FAN2500S27X 技术参数

FAN2500S27X 数据手册

与FAN2500S27X相关器件

与FAN2500S27X相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

FAN2500S27X

FAN2500S27X 技术参数

FAN2500S27X 数据手册

与FAN2500S27X相关器件

与FAN2500S27X相关文章

您还可以找

您在本页遇到什么问题？