AAT3238IJS-1.8-T1

更新时间： 2024-02-14 17:01:06

品牌	Logo	应用领域
ANALOGICTECH		稳压器
页数	文件大小	规格书
14页	318K
描述
300mA MicroPower⑩ High Performance LDO Linear Regulator

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AAT3238

300mA MicroPower™

High Performance LDO Linear Regulator

Electrical Characteristics¹

V_IN= V_OUT(NOM)+ 1V for V_OUToptions greater than 1.5V. V_IN= 2.5V for V_OUT≤ 1.5V. I_OUT= 1mA, C_OUT= 2.2µF,

C_IN= 1µF, T_A= -40°C to +85°C, unless otherwise noted. Typical values are T_A= 25°C.

Symbol Description

Conditions

Min Typ Max Units

T_A= 25°C

-1.5

1.5

2.5

V_OUT

Output Voltage Tolerance

I_OUT= 1mA to 300mA

T_A= -40 to 85°C -2.5

300

I_OUT

V_DO

I_SC

Output Current

V_OUT> 1.2V

I_OUT= 300mA

V_OUT< 0.4V

µA

Dropout Voltage^{2, 3}

Short-Circuit Current

Ground Current

400 600

600

I_Q

V_IN= 5V, No Load, EN = V_IN

V_IN= 5V, EN = 0V

125

I_SD

Shutdown Current

µA

ΔV_OUT

V_OUT*ΔV_IN

Line Regulation

V_IN= V_OUT+ 1 to 5.0V

0.09

%/V

V_IN= V_OUT+ 1V to V_OUT+ 2V,

ΔV_OUT(line) Dynamic Line Regulation

2.5

I_OUT= 300mA, T_R/T_F= 2µs

I_OUT= 1mA to 300mA, T_R< 5µs

BYP = Open

ΔV_OUT(load) Dynamic Load Regulation

µs

t_ENDLY

V_EN(L)

V_EN(H)

I_EN

Enable Delay Time

Enable Threshold Low

Enable Threshold High

0.6

1.5

Leakage Current on Enable Pin V_EN= 5V

µA

1kHz

PSRR

T_SD

Power Supply Rejection Ratio

I_OUT= 10mA, C_BYP= 10nF 10kHz

1MHz

°C

Over-Temperature Shutdown

Threshold

145

Over-Temperature Shutdown

Hysteresis

T_HYS

e_N

°C

Output Noise

µVrms

ppm/°C

Output Voltage Temperature

Coefficient

1. The AAT3238 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured

by design, characterization, and correlation with statistical process controls.

2. V_DOis defined as V_IN- V_OUTwhen V_OUTis 98% of nominal.

3. For V_OUT< 2.1V, V_DO= 2.5V - V_OUT

3238.2006.11.1.6

1 2 345 6 7...14

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