Datasheet > AS2931CU-5.0

AS2931CU-5.0

更新时间： 2024-02-06 03:12:34

品牌	Logo	应用领域
其他 - ETC		稳压器
页数	文件大小	规格书
5页	113K
描述
Positive Fixed Voltage Regulator

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技术参数
数据手册

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AS2931CU-5.0 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
包装说明：	, SIP3,.1TB	Reach Compliance Code：	unknown
风险等级：	5.92	可调性：	FIXED
标称回动电压 1：	0.07 V	最大绝对输入电压：	26 V
JESD-609代码：	e0	最大电网调整率：	0.03%
最大负载调整率：	0.05%	输出次数：	1
端子数量：	3	工作温度TJ-Max：	85 °C
工作温度TJ-Min：	-40 °C	最大输出电流 1：	0.1 A
标称输出电压 1：	5 V	封装主体材料：	PLASTIC/EPOXY
封装等效代码：	SIP3,.1TB	认证状态：	Not Qualified
子类别：	Other Regulators	表面贴装：	NO
技术：	BIPOLAR	端子面层：	Tin/Lead (Sn/Pb)
端子节距：	2.54 mm	端子位置：	SINGLE
最大电压容差：	5%

AS2931CU-5.0 数据手册

AS2931

factor of two over the value needed for the entire

temperature range.

Application Hints

The AS2931 requires an output capacitor for device stability.

The value required varies greatly depending upon the

application circuit and other factors. The high frequency

characteristics of electrolytic capacitors depend greatly on the

type and also on the manufacturer. Sometimes only bench

testing is the only means to determine the proper capacitor

Other points with linear regulators is that the twitch higher

output current stability decreases. In most applications the

AS2931 is operating at few milliamps. In these applications

the output capacitance can be further reduced. For example,

when the regulator is running at 10mA output current the

output capacitance value is half compared to the same

regulator that is running at 100 mA.

type and value.

The high quality 100 µF aluminum

electrolytic covers all general application circuits, this stability

can be obtained with a tantalum electrolytic value of 47 µF.

With the AS2931 adjustable regulator, the minimum value

of output capacitance is a function of the output voltage.

The value decreases with higher output voltages, since the

internal loop gain is reduced.

Another critical point of electrolytic characteristics is its

performance over temperature. The AS2931 is designed to

operate starting at -40°C which may not be true in the case of

electrolytic. Higher temperatures generally no problem. The

electrolytic. type in aluminum will freeze around -30°C. This

could cause an oscillation at output of regulator. At a lower

temperature requirement by many applications the capacitor

should maintain its performance. So as a result, for an

application which regulator junction temperature does not

exceed 25°C, the output capacitor can be reduced by the

The worst case occurs at the lower temperature and

maximum operating currents, the entire circuit and the

electrolytic, should be cooled down to the minimum

temperature. The minimum of 0.6 volts required at the input

of regulator above the output to keep the power dissipation

and die heating to its minimum. After the value for the

capacitor has been determined for actual use, the value

should be doubled.

Rev. 10/11/00

1 234 5

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与AS2931CU-5.0相关器件

型号	品牌	描述	获取价格	数据表
AS2931CU-ADJ	CALOGIC	Adjustable Positive LDO Regulator, 3V Min, 24V Max, 0.6V Dropout, BIPolar, PSFM5, TO-220,	获取价格
AS2931M1-3.0	CALOGIC	Fixed Positive LDO Regulator, 3V, 0.6V Dropout, BIPolar, PSSO3, SOT-89, 3 PIN	获取价格
AS2931M1-3.3	CALOGIC	Fixed Positive LDO Regulator, 3.3V, 0.6V Dropout, BIPolar, PSSO3, SOT-89, 3 PIN	获取价格
AS2931M1-3.5	CALOGIC	Fixed Positive LDO Regulator, 3.5V, 0.6V Dropout, BIPolar, PSSO3, SOT-89, 3 PIN	获取价格
AS2931M1-4.0	CALOGIC	Fixed Positive LDO Regulator, 4V, 0.6V Dropout, BIPolar, PSSO3, SOT-89, 3 PIN	获取价格
AS2931M1-4.2	CALOGIC	Fixed Positive LDO Regulator, 4.2V, 0.6V Dropout, BIPolar, PSSO3, SOT-89, 3 PIN	获取价格

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