PRODUCT DATASHEET
AAT2860
ChargePump
TM
Backlight/Flash LED Driver and Multiple LDO Lighting Management Unit
Electrical Characteristics
1
V
IN
= 3.6V; C
IN
= 4.7µF; C
OUT
= C
LDO(A, B, C)
= 2.2μF; C1 = C2 = 1µF; T
A
= -40°C to +85°C, unless otherwise noted.
Typical values are T
A
= 25°C.
Symbol
Description
Conditions
I
LDO
= 1mA to 300mA; T
A
= 25°C
I
LDO
= 1mA to 300mA; T
A
= -40°C to +85°C
Min
-1.5
-3
300
Typ
Max
+1.5
+3
Units
%
%
mA
LDO Regulators
LDOA, LDOB, LDOC Output
ΔV
LDO[A/B/C]
/
V
LDO[A/B/C]
Voltage Tolerance
LDOA, LDOB, LDOC Maximum
I
LDO[A/B/C](MAX)
Load Current
LDOA, LDOB, LDOC Dropout
V
LDO[A/B/C](DO)
Voltage
2
∆V
LDO
/
Line Regulation
V
LDO
*∆V
IN
LDOA, LDOB, LDOC Power
PSRR
[A/B/C]
Supply Rejection Ratio
LDOA, LDOB, LDOC Auto-
R
LDO_(DCHG)
Discharge Resistance
2
C Logic and Control Interface
I
SDA, SCL, LED_SEL, FL_LVL,
V
IL
LDO_SEL Input Low Threshold
SDA, SCL, LED_SEL, FL_LVL,
V
IH
LDO_SEL Input High Threshold
SDA, SCL, LED_SEL, FL_LVL,
I
IN
LDO_SEL Input Leakage Current
SCL Clock Frequency
f
SCL
t
LOW
SCL Clock Low Period
t
HIGH
SCL Clock High Period
t
HD_STA
Hold Time START Condition
t
SU_STA
Setup Time for Repeat START
t
SU_DAT
SDA Data Setup Time
t
HD_DAT
SDA Data HOLD Time
t
SU_STO
Setup Time for STOP Condition
Bus Free Time Between STOP
t
BUF
and START Conditions
V
LDO[A/B/C]
≥
2.7V; I
LDO
= 150mA
V
IN
= (V
LDO[A/B/C]
+ 1V) to 5V
I
LDO[A/B/C]
=10mA, 1kHz
75
0.09
40
20
150
mV
%/V
dB
Ω
2.7V
≤
V
IN
≤
5.5V
2.7V
≤
V
IN
≤
5.5V
SDA = SCL = LED_SEL = FL_LVL = LDO_SEL = 5V
1.4
-1
0
1.3
0.6
0.6
0.6
500
0.5
0.6
1.3
0.4
V
V
1
400
µA
kHz
µs
µs
µs
µs
ns
µs
µs
µs
1. The AAT2860 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. V
DO[A/B/C]
is defined as V
IN
– LDO[A/B/C] when LDO[A/B/C] is 98% of nominal.
2860.2008.05.1.0
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