AAT2557 AnalogicTech, AAT2557 Datasheet - Page 4

• Manufacturer Part Number: AAT2557
• Description: 500mA Battery Charger and 300mA LDO Regulator for Portable Systems
• Manufacturer: AnalogicTech

Electrical Characteristics
V
T
1. The AAT2557 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured
2. V
3. For V
4
Linear Regulator
A
INLDO
ΔV
V
ΔV
by design, characterization, and correlation with statistical process controls.
Symbol
= -40°C to +85°C, unless otherwise noted. Typical values are T
T
OUT
ΔV
DO
PSRR
V
V
I
V
OUT(Line)
T
EN _ DLY
OUT(Load)
V
I
SHDN
T
V
OUT
I
EN(H)
I
e
T
EN(L)
OUT
I
HYS
SC
EN
is defined as V
OUT
DO
SD
*ΔV
Q
IN
N
C
OUT
= V
/
IN
<2.3V, V
OUT(NOM)
Description
Output Voltage Tolerance
Input Voltage
Dropout Voltage
Line Regulation
Dynamic Line Regulation
Dynamic Load Regulation I
Output Current
Short-Circuit Current
Quiescent Current
Shutdown Current
Power Supply Rejection
Ratio
Over-Temperature
Shutdown Threshold
Over-Temperature
Shutdown Hysteresis
Output Noise
Output Voltage
Temperature Coefficient
Enable Time Delay
Enable Threshold Low
Enable Threshold High
Enable Input Current
DO
IN
+ 1V for V
= 2.5V - V
- V
OUT
when V
OUT
3
OUT
.
OUT
options greater than 1.5V. I
is 98% of nominal.
1
Conditions
I
to 300mA
I
V
I
to V
V
V
V
V
I
BYP Open
V
OUTLDO
OUTLDO
OUTLDO
OUTLDO
OUTLDO
INLDO
OUTLDO
OUTLDO
INLDO
INLDO
ENLDO
OUTLDO
= V
= 5V; V
= 5V; V
= 5.5V
= 1mA T
= 300mA
= 300mA, V
= 1mA to 300mA, T
=10mA 10kHz
> 1.2V
< 0.4V
OUTLDO
+ 2, T
ENLDO
ENLDO
1kHz
1MHz
T
R
LDO Regulator for Portable Systems
+ 1 to 5.0V
A
A
/T
= 25°C
= -40°C to +85°C
INLDO
500mA Battery Charger and 300mA
F
= V
= 0V
= 2µs
OUT
IN
= V
= 1mA, C
R
OUTLDO
<5µs
A
= 25°C.
+ 1
OUT
= 2.2µF, C
V
V
Min
-1.5
-2.5
OUT
300
1.5
DO
2
+
IN
0.09
Typ
400
600
145
2.5
60
70
65
45
43
12
50
22
15
= 1µF, C
AAT2557
Max
600
125
1.5
2.5
5.5
1.0
0.6
1.0
2557.2007.06.1.0
BYP
ppm/°C
= 10nF,
µV
Units
%/V
mV
mV
mV
mA
mA
µA
µA
dB
µA
°C
°C
µs
%
V
V
V
RMS