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| LP38513_14 Datasheet, PDF (4/20 Pages) Texas Instruments – 3A Fast Response Ultra Low Dropout Linear Regulator | |||
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LP38513
SNVS361C â JULY 2007 â REVISED MARCH 2009
www.ti.com
Electrical Characteristics (continued)
Unless otherwise specified: VIN = 2.5V, IOUT = 10 mA, CIN = 10 µF, COUT = 10 µF, VEN = 2.0V. Limits in standard type are for
TJ = 25°C only; limits in boldface type apply over the junction temperature (TJ) range of -40°C to +125°C. Minimum and
Maximum limits are specified through test, design, or statistical correlation. Typical values represent the most likely
parametric norm at TJ = 25°C, and are provided for reference purposes only.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
ERROR Flag
VTH
ERROR Flag Threshold(5)
VOUT falling from VOUT(NOM) until
ERROR Flag goes low
77
85
94
%
ÎVTH
ERROR Flag Threshold
Hysteresis (5)
VOUT rising from VTH until ERROR
Flag goes high
2.2
4
5.8
VERROR(SAT)
Ilk
ERROR Flag Saturation Voltage ISINK = 1 mA
ERROR Flag Pin Leakage
Current
VERROR = 5.5V
-
20
100
mV
-
100
-
nA
td
ERROR Flag Delay time
AC Parameters
-
1
-
µs
PSRR
Ripple Rejection
VIN = 2.5V
f = 120Hz
VIN = 2.5V
f = 1 kHz
-
73
-
dB
-
70
-
Ïn(l/f)
Output Noise Density
en
Output Noise Voltage
Thermal Characteristics
f = 120Hz
BW = 100Hz â 100kHz
VOUT = 1.8V
-
0.8
-
µV/âHz
-
45
-
µVRMS
TSD
ÎTSD
θJ-A
Thermal Shutdown
Thermal Shutdown Hysteresis
Thermal Resistance
Junction to Ambient
TJ rising
TJ falling from TSD
TO-220 (6)
DDPAK/TO-263 (6)
-
165
-
°C
-
10
-
-
60
-
°C/W
-
60
-
θJ-C
Thermal Resistance
Junction to Case
TO-220
DDPAK/TO-263
-
3
-
°C/W
-
3
-
(5) The ERROR Flag thresholds are specified as percentage of the nominal regulated output voltage. See Application Information.
(6) Device operation must be evaluated, and derated as needed, based on ambient temperature (TA), power dissipation (PD), maximum
allowable operating junction temperature (TJ(MAX)), and package thermal resistance (θJA).
4
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