AAT2552
Total Power Solution for Portable Applications
1
Electrical Characteristics
VINA = VOUT(NOM) + 1V. IOUT = 1mA, COUT = 2.2µF, TA = -40°C to +85°C, unless otherwise noted. Typical val-
ues are TA = 25°C.
Symbol
Description
Conditions
Min Typ Max Units
Linear Regulator
I
OUTA = 1mA
TA = 25°C
TA = -40°C to +85°C
-1.5
-2.5
1.2
1.5
2.5
3.3
VOUT
Output Voltage Tolerance
%
to 300mA
VOUT
VFB
Output Voltage Range
Feedback Voltage Accuracy
V
V
1.22 1.24 1.26
VOUT
VDO
+
VIN
Input Voltage
5.5
650
0.09
V
2
3
VDO
ΔVOUT
VOUT*ΔVIN
Dropout Voltage
IOUTA = 300mA; VOUT = 3.3V
VINA = VOUTA + 1 to 5.0V
400
mV
%/V
/
Line Regulation
IOUT
ISC
IQ
ISHDN
Output Current
VOUTA > 2.0V
VOUTA < 0.4V
VINA = 5V; VENA = VIN
VINA = 5V; VENA = 0V
1kHz
300
mA
mA
µA
Short-Circuit Current
Quiescent Current
Shutdown Current
400
85
150
1.0
µA
70
50
30
Power Supply Rejection
Ratio
PSRR
IOUTA =10mA
10kHz
1MHz
dB
Over-Temperature
Shutdown Threshold
Over-Temperature
Shutdown Hysteresis
TSD
THYS
eN
140
15
95
8
°C
°C
µVRMS
√Hz
/
Output Noise
eNBW = 100Hz to 100kHz
Output Voltage
TC
ppm/°C
Temperature Coefficient
Enable Threshold Low
Enable Threshold High
Enable Input Current
VEN(L)
VEN(H)
IEN
0.6
1.0
V
V
µA
1.4
VINA = VENA = 5.5V
1. The AAT2552 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.
2. VDO is defined as VIN - VOUT when VOUT is 98% of nominal.
3. For VOUT <2.3V, VDO = 2.5V - VOUT
.
2552.2007.04.1.0
5
ANALOGICTECH [ ADVANCED ANALOGIC TECHNOLOGIES ]
