AAT2847

Four-Channel Backlight Driver with Dual LDOs

2847.2007.09.1.0

5

Electrical Characteristics

1

V

Typical values are at T

Symbol

Description

Conditions

Min

Typ

Max

Units

LDOs: AAT2847-EE

I

IN

IN Operating Current

V

80

150

µA

V

60

112

V

Feedback Voltage

I

1.17

1.2

1.23

V

V

DO

Dropout Voltage

I

150

300

mV

ΔV

V

Line Regulation

V

0.09

%/V

PSRR

Power Supply Rejection

Ratio

I

50

dB

LDOs: AAT2847-QG

I

IN

IN Operating Current

V

80

150

µA

V

60

112

LDOA

2.716

2.8

2.884

V

LDOB

1.455

1.5

1.545

V

V

DO

LDOA Dropout Voltage

2

I

150

300

mV

ΔV

V

LDOA, LDOB Line

Regulation

V

to 5V

0.09

%/V

PSRR

LDOA, LDOB Power

Supply Rejection Ratio

I

50

dB

LDOs: AAT2847-QI

I

IN

IN Operating Current

V

80

150

µA

V

60

112

LDOA

2.716

2.8

2.884

V

LDOB

1.746

1.8

1.854

V

V

DO

LDOA Dropout Voltage

2

I

150

300

mV

ΔV

V

LDOA, LDOB Line

Regulation

V

0.09

%/V

PSRR

LDOA, LDOB Power

Supply Rejection Ratio

I

50

dB

LDO Logic Control – All Options

V

V

IL(ENB)

ENA, ENB Input Logic

Low Threshold Voltage

0.4

V

V

V

IH(ENB)

ENA, ENB Input Logic

High Threshold Voltage

1.4

V

I

EN[A/B]

ENA, ENB Input

Leakage

V

-1

1

µA

1. The AAT2847 is guaranteed to meet performance specifications over the –40˚C to +85°C operating temperature range is assured by

design, characterization and correlation with statistical process controls.

2. V