Datasheet > AME88052EFTZ

AME88052EFTZ

更新时间： 2024-01-14 13:17:00

品牌	Logo	应用领域
安茂微 - AME		/
页数	文件大小	规格书
17页	188K
描述
600mA CMOS LDO

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技术参数
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AME88052EFTZ 技术参数

是否Rohs认证：	符合	生命周期：	Contact Manufacturer
包装说明：	, TO-243	Reach Compliance Code：	compliant
风险等级：	5.55	可调性：	FIXED
标称回动电压 1：	1.4 V	最大绝对输入电压：	8 V
最大电网调整率：	0.003%	最大负载调整率：	0.02%
输出次数：	1	端子数量：	3
最高工作温度：	125 °C	最低工作温度：	-40 °C
最大输出电流 1：	0.6 A	标称输出电压 1：	2 V
封装主体材料：	PLASTIC/EPOXY	封装等效代码：	TO-243
包装方法：	TAPE AND REEL	认证状态：	Not Qualified
子类别：	Other Regulators	表面贴装：	YES
技术：	CMOS	最大电压容差：	1.5%
Base Number Matches：	1

AME88052EFTZ 数据手册

AME

AME8805 / 8813

600mA CMOS LDO

n Detailed Description

n External Capacitors

The AME8805/8813 family of CMOS regulators con-

tain a PMOS pass transistor, voltage reference, error am-

plifier, over-current protection, and thermal shutdown.

The AME8805/8813 is stable with an output capacitor

to ground of 2.2mF or greater. Ceramic capacitors have

the lowest ESR, and will offer the best AC performance.

Conversely,Aluminum Electrolytic capacitors exhibit the

highest ESR, resulting in the poorest AC response. Un-

fortunately, large value ceramic capacitors are compara-

tively expensive. One option is to parallel a 0.1mF ce-

ramic capacitor with a 10mF Aluminum Electrolytic. The

benefit is low ESR, high capacitance, and low overall cost.

The P-channel pass transistor receives data from the

error amplifier, over-current shutdown, and thermal pro-

tection circuits. During normal operation, the error ampli-

fier compares the output voltage to a precision reference.

Over-current and Thermal shutdown circuits become ac-

tive when the junction temperature exceeds 150^oC, or

the current exceeds 600mA. During thermal shutdown,

the output voltage remains low. Normal operation is re-

stored when the junction temperature drops below 120^oC.

A second capacitor is recommended between the in-

put and ground to stabilize Vin. The input capacitor should

be at least 0.1mF to have a beneficial effect.

TheAME8805/8813 switches from voltage mode to cur-

rent mode when the load exceeds the rated output cur-

rent. This prevents over-stress. The AME8805/8813 also

incorporates current foldback to reduce power dissipa-

tion when the output is short circuited. This feature be-

comes active when the output drops below 0.8 volts, and

reduces the current flow by 65%. Full current is restored

when the voltage exceeds 0.8 volts.

All capacitors should be placed in close proximity to

the pins. A "Quiet" ground termination is desirable. This

can be achieved with a "Star" connection.

Rev.R.12

1...7 8 91011 12 13...17

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