AAT2503
Adjustable 3-Channel Regulator
Electrical Characteristics (continued)
1
V
IN
= 3.6V; T
A
= -40°C to +85°C, unless otherwise noted. Typical values are T
A
= 25°C.
Symbol
Description
Conditions
Min
2.7
V
IN
Rising
Hysteresis
V
IN
Falling
I
OUT
= 0 to 800mA;
V
IN
= 2.7V to 5.5V
250
1.5
-3.0
0.9
0.891
EN = GND
V
IN
= 5.5, V
LX
= 0 to V
IN
V
FB
= 1.0V
1.2
400
300
0.5
0.2
1.6
2.0
140
15
0.6
V
EN
= 5V, V
IN
= 5V
1.4
-1.0
1.0
V
IN
×
0.4
2.4
3.0
V
IN
0.909
1.0
1.0
0.2
Typ
Max
5.5
1.8
Units
V
V
mV
V
%
V
V
µA
µA
µA
A
mΩ
mΩ
%
%/V
MHz
°C
°C
V
V
µA
V
V
Step-Down Converter; I
OUT
= 800mA
V
IN
Input Voltage
UVLO
Under-Voltage Lockout Voltage
V
OUT
V
OUT
V
FB
I
SHDN
I
LX_LEAK
I
FB
I
LIM
R
DS(ON)H
R
DS(ON)L
ΔV
OUT
/V
OUT
ΔV
OUT
/
V
OUT
*ΔV
IN
F
OSC
T
SD
T
HYS
V
EN(L)
V
EN(H)
I
EN
V
MODE/SYNC(L)
V
MODE/SYNC(H)
I
MODE/SYNC
Output Voltage Tolerance
V
OUT
Programmable Range
Feedback Threshold Voltage
Shutdown Current
LX Leakage Current
Feedback Leakage
Current Limit
High Side Switch On Resistance
Low Side Switch On Resistance
Load Regulation
Line Regulation
Oscillator Frequency
Over-Temperature Shutdown
Threshold
Over-Temperature Shutdown
Hysteresis
Enable Threshold Low
Enable Threshold High
EN Input Leakage
Enable Threshold Low
Enable Threshold High
Input Low Current
0.9
I
LOAD
= 0 to 800mA
V
IN
×
0.7
-1.0
1.0
µA
1. The AAT2503 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.
2503.2007.04.1.1
5
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
