Datasheet > AAT3216IJS-2.3-T1

AAT3216IJS-2.3-T1

更新时间： 2024-02-14 16:11:30

品牌	Logo	应用领域
ANALOGICTECH		/
页数	文件大小	规格书
16页	180K
描述
150mA MicroPower⑩ LDO with PowerOK

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AAT3216IJS-2.3-T1 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
包装说明：	,	Reach Compliance Code：	unknown
风险等级：	5.84	湿度敏感等级：	1
Base Number Matches：	1

AAT3216IJS-2.3-T1 数据手册

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AAT3216

150mA MicroPower™ LDO with PowerOK

The following discussions will assume the LDO reg-

ulator is mounted on a printed circuit board utilizing

the minimum recommended footprint as stated in

the Layout Considerations section of this document.

P_D(MAX)+ (V_OUT× I_OUT

)

V_IN(MAX)

I_OUT+ I_GND

The following is an example for an AAT3216 set for

a 2.5V output:

At any given ambient temperature (T_A), the maxi-

mum package power dissipation can be deter-

mined by the following equation:

V_OUT

I_OUT

I_GND

= 2.5V

T_J(MAX)- T_A

θ_JA

= 150mA

P_D(MAX)

= 150µA

526mW + (2.5V × 150mA)

Constants for the AAT3216 are T_J(MAX), the maxi-

mum junction temperature for the device which is

125°C, and Θ_JA= 190°C/W, the package thermal

resistance. Typically, maximum conditions are cal-

culated at the maximum operating temperature

where T_A= 85°C, under normal ambient conditions

T_A= 25°C. Given T_A= 85°C, the maximum pack-

age power dissipation is 211mW. At T_A= 25°C, the

maximum package power dissipation is 526mW.

V_IN(MAX)

150mA + 150µA

V_IN(MAX)= 6.00V

From the discussion above, P_D(MAX)was deter-

mined to equal 526mW at T_A= 25°C.

Thus, the AAT3216 can sustain a constant 2.5V out-

put at a 150mA load current as long as V_INis ≤ 6.00V

at an ambient temperature of 25°C. 6.0V is the

absolute maximum voltage where an AAT3216

would never be operated, thus at 25°C, the device

would not have any thermal concerns or operational

V_IN(MAX)limits.

The maximum continuous output current for the

AAT3216 is a function of the package power dissi-

pation and the input-to-output voltage drop across

the LDO regulator. Refer to the following simple

equation:

This situation can be different at 85°C. The follow-

ing is an example for an AAT3216 set for a 2.5V

output at 85°C:

P_D(MAX)

V_IN- V_OUT

I_OUT(MAX)

For example, if V_IN= 5V, V_OUT= 3V, and T_A= 25°C,

I_OUT(MAX)< 264mA. If the output load current were

to exceed 264mA or if the ambient temperature

were to increase, the internal die temperature

would increase. If the condition remained con-

stant, the LDO regulator thermal protection circuit

would activate.

V_OUT

I_OUT

I_GND

= 2.5V

= 150mA

= 150µA

211mW + (2.5V × 150mA)

V_IN(MAX)

150mA + 150µA

To determine the maximum input voltage for a

given load current, refer to the following equation.

This calculation accounts for the total power dissi-

pation of the LDO regulator, including that caused

by ground current.

V_IN(MAX)= 3.90V

From the discussion above, P_D(MAX)was deter-

mined to equal 211mW at T_A= 85°C.

Higher input-to-output voltage differentials can be

obtained with the AAT3216, while maintaining

device functions within the thermal safe operating

area. To accomplish this, the device thermal

resistance must be reduced by increasing the heat

P_D(MAX)= (V_IN- V_OUT)I_OUT+ (V_INx I_GND

)

This formula can be solved for V_INto determine the

maximum input voltage.

3216.2006.01.1.3

1...8 9 101112 13 14...16

中文翻译

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与AAT3216IJS-2.3-T1相关器件

型号	品牌	获取价格	描述	数据表
AAT3216IJS-2.5-T1	ANALOGICTECH	获取价格	150mA MicroPower⑩ LDO with PowerOK
AAT3216IJS-2.7-T1	ANALOGICTECH	获取价格	150mA MicroPower⑩ LDO with PowerOK
AAT3216IJS-2.85-T1	ANALOGICTECH	获取价格	150mA MicroPower⑩ LDO with PowerOK
AAT3216IJS-2.8-T1	ANALOGICTECH	获取价格	150mA MicroPower⑩ LDO with PowerOK
AAT3216IJS-3.0-T1	ANALOGICTECH	获取价格	150mA MicroPower⑩ LDO with PowerOK
AAT3216IJS-3.3-T1	ANALOGICTECH	获取价格	150mA MicroPower⑩ LDO with PowerOK
AAT3216IJS-3.5-T1	ANALOGICTECH	获取价格	150mA MicroPower⑩ LDO with PowerOK
AAT3218	ANALOGICTECH	获取价格	150mA MicroPower⑩ High Performance LDO
AAT3218IGV-1.2-T1	ANALOGICTECH	获取价格	150mA MicroPower⑩ High Performance LDO
AAT3218IGV-1.5-T1	ANALOGICTECH	获取价格	150mA MicroPower⑩ High Performance LDO

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