Datasheet > AAT3244

AAT3244

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
ANALOGICTECH		稳压器
页数	文件大小	规格书
15页	807K
描述
300mA Adjustable Dual CMOS Low Voltage LDO Linear Regulator

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AAT3244 数据手册

AAT3244

300mA Adjustable Dual CMOS

Low Voltage LDO Linear Regulator

Electrical Characteristics

V_CC= V_INA= V_INB= 3.6V; T_A= -40°C to +85°C, unless otherwise noted. Typical values are T_A= 25°C.

Symbol Description

Bias Power Supply

Conditions

Min Typ Max

Units

V_CC

I_Q

I_SHDN

Bias Power Supply Input

Quiescent Current

Shutdown Current

2.7

5.5

160

1.0

2.6

µA

V_ENA= V_ENB= V_IN; I_LOAD= 0

V_ENA= V_ENB= GND

V_CCRising

UVLO

Under-Voltage Lockout Voltage

Hysteresis

200

LDOA, LDOB; I_OUT= 300mA

V_IN

Input Voltage

1.8

-2.0

-3.5

5.5

2.0

3.5

_OUT= 1mA

T_A= 25°C

T_A= -40°C to +85°C

V_OUT

Output Voltage Tolerance

ꢀ

to 300mA

V_FB

V_DO

Feedback Voltage

Dropout Voltage

0.594 0.6 0.606

I_OUT= 300mA

200

300

ΔV_OUT

Line Regulation

V_IN= V_OUT+ 1.0V to 5.0V

V_OUTRising, T_A= 25°C

0.09

ꢀ/V

V_OUT/ΔV_IN

V_EN(L)

V_EN(H)

t_EN

Enable Threshold Low

Enable Threshold High

Turn-On Enable Time

Power OK Trip Threshold

Power OK Hysteresis

Power OK Output Voltage Low I_SINK= 1mA

POK Output Leakage Current

Output Current

0.6

V_CC

1.5

100

1.0

µs

ꢀ of V_OUT

V_POK

V_POKHYS

V_POK(LO)

I_POK

I_OUT

I_SD

0.4

1.0

V_POK< 5.5V, V_OUTin Regulation

V_IN(MIN)= 2.5V

V_IN= 5V

µA

300

Shutdown Current

1.0

Over-Temperature Shutdown

Threshold

Over-Temperature Shutdown

Hysteresis

T_SD

140

°C

T_HYS

1. The AAT3244 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 98ꢀ of nominal.

3. C_IN= 10µF.

4. To calculate minimum input voltage, use the following equation: V_IN(MIN)= V_OUT(MAX)+ V_DO(MAX)as long as V_IN≥ 1.8V.

3244.2007.08.1.1

1 2 345 6 7...15

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