AAT3242_08 Datasheet, PDF (4/15 Pages) Advanced Analogic Technologies – 300mA/150mA Dual CMOS LDO Linear Regulator

PowerLinear^TM
PRODUCT DATASHEET
AAT3242
300mA/150mA Dual CMOS LDO Linear Regulator
Electrical Characteristics¹
V_IN = V_OUT(NOM) + 1.0V for V_OUT options greater than 1.5V. V_IN = 2.5V for V_OUT ≤ 1.5V. I_OUT = 1.0mA, C_OUT = 2.2μF, C_IN =
1.0μF, T_A = -40°C to +85°C, unless otherwise noted. Typical values are T_A = 25°C.
Symbol Description
LDO A; I_OUT = 300mA
V_OUT
Output Voltage Tolerance
V_IN
V_DO
ΔV_OUT/
V_OUT*ΔV_IN
Input Voltage
Dropout Voltage^{2, 3}
Line Regulation⁴
ΔV_OUT(Line) Dynamic Line Regulation
ΔV_OUT(Load)
V_EN(L)
V_EN(H)
V_POK
V_POKHYS
V_POK(LO)
I_POK
I_OUT
I_SC
I_Q
I_SD
Dynamic Load Regulation
Enable Threshold Low
Enable Threshold High
Power OK Trip Threshold
Power OK Hysteresis
Power OK Output Voltage Low
POK Output Leakage Current
Output Current
Short-Circuit Current
Ground Current
Shutdown Current
PSRR
Power Supply Rejection Ratio
Over-Temperature Shutdown
T_SD
Threshold
Over-Temperature Shutdown
T_HYS
Hysteresis
e_N
Output Noise
Output Voltage Temperature
T_C
Coefficient
Conditions
I_OUT = 1mA
to 300mA
T_A = 25°C
T_A = -40 to 85°C
I_OUT = 300mA
V_IN = V_OUT + 1V to 5.0 V
I_OUT = 300mA, V_IN = V_OUT + 1 to
V_OUT + 2, T_R/T_F = 2μs
I_OUT = 1mA to 300mA, T_R < 5μs
V_OUT Rising, T_A = 25°C
I_SINK = 1mA
V_POK < 5.5V, V_OUT in Regulation
V_OUT > 1.2V
V_OUT < 0.4V
V_IN = 5V, No Load; EN A = V_IN
V_IN = 5V, EN A = 0V
1kHz
I_OUT =10mA
10kHz
1MHz
e_NBW = 300Hz to 50kHz
Min
Typ Max Units
-1.5
-2.5
V_OUT + V_DO5
1.5
90
300
1.5
2.5
5.5
400 600
0.09
%
V
mV
%/V
5.0
mV
60
mV
0.6
V
V
94
98
% of V_OUT
1.0
% of V_OUT
0.4
V
1.0
μA
mA
600
mA
70
125
μA
1.0
μA
65
45
dB
42
145
°C
12
°C
250
μVRMS
22
ppm/°C
1. The AAT3242 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. VDO is defined as VIN - VOUT when VOUT is 98% of nominal.
3. For VOUT < 2.1V, VDO = 2.5 - VOUT.
4. CIN = 10μF.
5. To calculate minimum input voltage, use the following equation: VIN(MIN) = VOUT(MAX) + VDO(MAX) as long as VIN ≥ 2.5V.
4
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3242.2008.08.1.11