LP38512_15 Datasheet, PDF (4/21 Pages) Texas Instruments – 1.5A Fast-Transient Response Low-Dropout Linear Voltage Regulator with Error Flag

LP38512
SNOSAU7F – NOVEMBER 2007 – REVISED APRIL 2013
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Electrical Characteristics (continued)
Unless otherwise specified: V_IN = 2.5V, I_OUT = 10 mA, C_IN = 10 µF, C_OUT = 10 µF, V_EN = V_IN. Limits in standard type are for T_J
= 25°C only; limits in boldface type apply over the junction temperature (T_J) 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 T_J = 25°C, and are provided for reference purposes only.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
V_TH
Error Flag Threshold⁽⁵⁾
V_OUT rising threshold where ERROR
Flag goes high
78
90
98
%
V_OUT falling threshold where
ERROR Flag goes low
74
85
93
V_ERROR(SAT)
I_lk
ERROR Flag Saturation Voltage I_SINK = 100 µA
ERROR Flag Pin Leakage
Current
V_ERROR = 5.5V
-
12.5
45
mV
-
1
-
nA
t_d
ERROR Flag Delay time
AC Parameters
-
1
-
µs
PSRR
Ripple Rejection
V_IN = 2.5V
f = 120Hz
V_IN = 2.5V
f = 1 kHz
-
73
-
dB
-
73
-
Output Noise Density
e_n
Output Noise Voltage
f = 120Hz
BW = 100Hz – 100kHz
-
2
-
nV/√Hz
-
75
-
µV (RMS)
Thermal Characteristics
T_SD
ΔT_SD
θ_J-A
Thermal Shutdown
Thermal Shutdown Hysteresis
Thermal Resistance
Junction to Ambient⁽⁶⁾
T_J rising
T_J falling from T_SD
DDPAK/TO-263 and PFM
-
165
-
°C
-
10
-
-
60
-
°C/W
θ_J-C
Thermal Resistance
Junction to Case
DDPAK/TO-263 and PFM
-
3
-
°C/W
(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 (T_A), power dissipation (P_D), maximum
allowable operating junction temperature (T_J(MAX)), and package thermal resistance (θ_JA).
4
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