AAT3242ITP-PP-T1 datasheet(4/16 Pages) AAT

Part #	AAT3242ITP-PP-T1

Description	300mA/150mA Dual CMOS LDO Linear Regulator

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Manufacturer	AAT [Advanced Analog Technology, Inc.]

Direct Link	http://www.aatech.com.tw

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AAT3242

300mA/150mA Dual CMOS LDO Linear Regulator

4

3242.2006.04.1.10

Electrical Characteristics1

VIN = VOUT(NOM) + 1.0V for VOUT options greater than 1.5V. VIN = 2.5V for VOUT ≤ 1.5V. IOUT = 1.0mA, COUT =

2.2µF, CIN = 1.0µF, TA = -40°C to +85°C, unless otherwise noted. Typical values are TA = 25°C.

Symbol

Description

Conditions

Min

Typ Max

Units

LDO A; IOUT = 300mA

VOUT

Output Voltage Tolerance

IOUT = 1mA TA = 25°C

-1.5

1.5

%

to 300mA

TA = -40 to 85°C

-2.5

2.5

VIN

Input Voltage

VOUT + VDO5

5.5

V

VDO

Dropout Voltage2, 3

IOUT = 300mA

400

600

mV

ΔVOUT/

Line Regulation4

VIN = VOUT + 1 to 5.0 V

0.09

%/V

VOUT*ΔVIN

ΔVOUT(Line)

Dynamic Line Regulation

IOUT = 300mA, VIN = VOUT + 1

5.0

mV

to VOUT + 2, TR/TF = 2µS

ΔVOUT(Load)

Dynamic Load Regulation

IOUT = 1mA to 300mA,

60

mV

TR <5µS

VEN(L)

Enable Threshold Low

0.6

V

VEN(H)

Enable Threshold High

1.5

V

VPOK

Power OK Trip Threshold

VOUT Rising, TA = 25°C

90

94

98

% of VOUT

VPOKHYS

Power OK Hysteresis

1.0

% of VOUT

VPOK(LO)

Power OK Output Voltage Low

ISINK = 1mA

0.4

V

IPOK

POK Output Leakage Current

VPOK < 5.5V, VOUT in Regulation

1.0

µA

IOUT

Output Current

VOUT > 1.2V

300

mA

ISC

Short-Circuit Current

VOUT < 0.4V

600

mA

IQ

Ground Current

VIN = 5V, No Load; EN A = VIN

70

125

µA

ISD

Shutdown Current

VIN = 5V, EN A = 0V

1.0

µA

1kHz

65

PSRR

Power Supply Rejection Ratio

IOUT =1 0mA 10kHz

45

dB

1MHz

42

TSD

Over-Temperature Shutdown

145

°C

Threshold

THYS

Over-Temperature Shutdown

12

°C

Hysteresis

eN

Output Noise

eNBW = 300Hz to 50kHz

250

µVRMS

TC

Output Voltage Temperature

22

ppm/°C

Coefficient

1. The AAT3242 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. VDO is defined as VIN - VOUT when VOUT is 98% of nominal.

3. For VOUT < 2.1V, VDO = 2.5 - VOUT.

4. CIN = 10µF.

5. To calculate minimum input voltage, use the following equation: VIN(MIN) = VOUT(MAX) + VDO(MAX) as long as VIN ≥ 2.5V.

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AAT3242ITP-PP-T1 Datasheet(PDF) 4 Page - Advanced Analog Technology, Inc.

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