AAT2861IMK-3-T1 datasheet(5/27 Pages) AAT

Part #	AAT2861IMK-3-T1

Description	Backlight/Flash LED Driver and Multiple LDO Lighting Management Unit

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Manufacturer	AAT [Advanced Analog Technology, Inc.]

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

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AAT2861

Backlight/Flash LED Driver and Multiple LDO Lighting Management Unit

ChargePump

TM

PRODUCT DATASHEET

2861.2009.02.1.2

5

www .analogictech.com

AAT2861

Backlight/Flash LED Driver and Multiple LDO Lighting Management Unit

ChargePump

TM

PRODUCT DATASHEET

2861.2009.02.1.2

5

www .analogictech.com

Electrical Characteristics (continued)1

VIN = 3.6V; CIN = COUT = 2.2μF; C1 = C2 = 1μF; TA = -40°C to +85°C, unless otherwise noted. Typical values are TA =

25°C.

Symbol

Description

Conditions

Min Typ Max Units

Linear Regulators

ΔVLDO[A/B/C]/

VLDO[A/B/C]

LDOA, LDOB, LDOC Output Voltage Tolerance

ILDO = 1mA to 200mA; TA = 25°C

-1.5

1.5

%

ILDO = 1mA to 200mA;

TA = -40°C to +85°C

-3.0

3.0

%

ILDO[A/B/C](MAX) LDOA, LDOB, LDOC Load Current

200

mA

VLDO[A/B/C](DO) LDOA, LDOB, LDOC Dropout Voltage2

VLDO[A/B/C] ≥ 3.0V; ILDO = 150mA

75

150

mV

ΔVLDO/

VLDO*ΔVIN

LDOA, LDOB, LDOC Line Regulation

VIN = (VLDO[A/B/C] + 1V) to 5V

0.09

%/V

PSRR[A/B/C]

LDOA, LDOB, LDOC Power Supply Rejection Ratio

ILDO[A/B/C] = 10mA, 1kHz

50

dB

ROUT_(DCHG)

LDOA, LDOB, LDOC Auto-Discharge Resistance

20

Ω

EN/SET AS2Cwire and Logic Control

VIH

EN/SET, FL_EN, EN_LDOA, EN_LDOB/C Input High

Threshold Voltage

2.7V ≤ VIN ≤ 5.5V

1.4

V

VIL

EN/SET, FL_EN, EN_LDOA, EN_LDOB/C Input Low

Threshold Voltage

2.7V ≤ VIN ≤ 5.5V

0.4

V

IIN(LKG)

EN/SET, FL_EN, EN_LDOA, EN_LDOB/C Input Leak-

age Current

EN/SET = IN = 5V

-1

1

μA

tEN/SET(OFF)

EN/SET Input OFF Timeout

500

μs

tEN/SET(LAT)

EN/SET Input Latch Timeout

500

μs

tEN/SET(LOW)

EN/SET Input LOW Time

0.3

75

μs

tENSET(H-MIN)

EN/SET Minimum High Time

50

ns

tENSET(H-MAX)

EN/SET Maximum High Time

75

μs

1. The AAT2861 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correla-

tion with statistical process controls.

2. VDO[A/B/C] is defined as VIN – LDO[A/B/C] when LDO[A/B/C] is 98% of nominal.

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AAT2861IMK-3-T1 Datasheet(PDF) 5 Page - Advanced Analog Technology, Inc.

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