LP38511_14 Datasheet, PDF (4/19 Pages) Texas Instruments – 800 mA Fast-Transient Response Low-Dropout Linear Voltage Regulator with Error Flag

LP38511
SNOSAU6D – NOVEMBER 2007 – REVISED MARCH 2009
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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
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_JA
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
SO PowerPAD-8
-
165
-
°C
-
10
-
-
60
-
°C/W
-
168
-
θ_JC
Thermal Resistance
Junction to Case
DDPAK/TO-263 and PFM
SO PowerPAD-8
-
3
-
°C/W
-
11
-
(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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