PRODUCT DATASHEET
AAT2861
ChargePump
TM
Backlight/Flash LED Driver and Multiple LDO Lighting Management Unit
Electrical Characteristics (continued)
1
V
IN
= 3.6V; C
IN
= C
OUT
= 2.2μF; C
1
= C
2
= 1μF; T
A
= -40°C to +85°C, unless otherwise noted. Typical values are T
A
=
25°C.
Symbol
Linear Regulators
ΔV
LDO[A/B/C]
/
V
LDO[A/B/C]
LDOA, LDOB, LDOC Output Voltage Tolerance
I
LDO
= 1mA to 200mA; T
A
= 25°C
I
LDO
= 1mA to 200mA;
T
A
= -40°C to +85°C
V
LDO[A/B/C]
≥
3.0V; I
LDO
= 150mA
V
IN
= (V
LDO[A/B/C]
+ 1V) to 5V
I
LDO[A/B/C]
= 10mA, 1kHz
-1.5
-3.0
200
75
0.09
50
20
1.4
0.4
-1
1
500
500
75
50
75
150
1.5
3.0
%
%
mA
mV
%/V
dB
Ω
V
V
μA
μs
μs
μs
ns
μs
Description
Conditions
Min
Typ
Max
Units
I
LDO[A/B/C](MAX)
LDOA, LDOB, LDOC Load Current
V
LDO[A/B/C](DO)
LDOA, LDOB, LDOC Dropout Voltage
2
ΔV
LDO
/
LDOA, LDOB, LDOC Line Regulation
V
LDO
*ΔV
IN
LDOA, LDOB, LDOC Power Supply Rejection Ratio
PSRR
[A/B/C]
LDOA, LDOB, LDOC Auto-Discharge Resistance
R
OUT_(DCHG)
2
Cwire and Logic Control
EN/SET AS
EN/SET, FL_EN, EN_LDOA, EN_LDOB/C Input High
V
IH
Threshold Voltage
EN/SET, FL_EN, EN_LDOA, EN_LDOB/C Input Low
V
IL
Threshold Voltage
EN/SET, FL_EN, EN_LDOA, EN_LDOB/C Input Leak-
I
IN(LKG)
age Current
EN/SET Input OFF Timeout
t
EN/SET(OFF)
EN/SET Input Latch Timeout
t
EN/SET(LAT)
EN/SET Input LOW Time
t
EN/SET(LOW)
EN/SET Minimum High Time
t
ENSET(H-MIN)
EN/SET Maximum High Time
t
ENSET(H-MAX)
2.7V
≤
V
IN
≤
5.5V
2.7V
≤
V
IN
≤
5.5V
EN/SET = IN = 5V
0.3
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. V
DO[A/B/C]
is defined as V
IN
– LDO[A/B/C] when LDO[A/B/C] is 98% of nominal.
2861.2009.02.1.2
www.analogictech.com
5
AAT [ ADVANCED ANALOG TECHNOLOGY, INC. ]
