LP38511TJ-ADJ Datasheet, PDF (3/21 Pages) Texas Instruments – LP38511-ADJ 800mA Fast-Transient Response Adjustable Low-Dropout Linear Voltage Regulator

LP38511-ADJ
www.ti.com
SNVS545D – JANUARY 2009 – REVISED APRIL 2013
Absolute Maximum Ratings⁽¹⁾⁽²⁾
Storage Temperature Range
−65°C to +150°C
Soldering Temperature⁽³⁾
ESD Rating⁽⁴⁾
Power Dissipation⁽⁵⁾
PFM
SO PowerPad
260°C, 10s
260°C, 10s
±2 kV
Internally Limited
Input Pin Voltage (Survival)
-0.3V to +6.0V
Enable Pin Voltage (Survival)
-0.3V to +6.0V
Output Pin Voltage (Survival)
-0.3V to +6.0V
ADJ Pin Voltage (Survival)
-0.3V to +6.0V
I_OUT (Survival)
Internally Limited
(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is intended to be functional, but does not ensure specific performance limits. For ensured specifications and conditions,
see the Electrical Characteristics.
(2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and
specifications.
(3) Refer to JEDEC J-STD-020C for surface mount device (SMD) package reflow profiles and conditions. Unless otherwise stated, the
temperatures and times are for Sn-Pb (STD) only.
(4) The human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin. Test method is per JESD22-A114.
(5) 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). The typical θ_JA ratings given are worst case
based on minimum land area on two-layer PCB (EIA/JESD51-3). See POWER DISSIPATION/HEAT-SINKING for details.
Operating Ratings⁽¹⁾
Input Supply Voltage, V_IN
Output Voltage, V_OUT
Enable Input Voltage, V_EN
Output Current (DC)
Junction Temperature⁽²⁾
2.25V to 5.5V
V_ADJ to 5V
0.0V to 5.5V
1 mA to 800 mA
−40°C to +125°C
(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is intended to be functional, but does not ensure specific performance limits. For ensured specifications and conditions,
see the Electrical Characteristics.
(2) 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). The typical θ_JA ratings given are worst case
based on minimum land area on two-layer PCB (EIA/JESD51-3). See POWER DISSIPATION/HEAT-SINKING for details.
Electrical Characteristics
Unless otherwise specified: V_IN= 2.50V, V_OUT= V_ADJ, I_OUT= 10 mA, C_IN= 10 µF, C_OUT= 10 µF, V_EN= 2.0V. 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 ensured 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_ADJ
I_ADJ
ΔV_ADJ/ΔV_IN
V_ADJ Accuracy⁽¹⁾
ADJ Pin Bias Current
V_ADJ Line Regulation⁽²⁾⁽¹⁾
2.25V ≤ V_IN ≤ 5.5V
10 mA ≤ I_OUT ≤ 800 mA
2.25V ≤ V_IN ≤ 5.5V
2.25V ≤ V_IN ≤ 5.5V
495.0
490.0
500.
505.0
510.0
mV
-
1
-
nA
-
0.03
0.06
-
%/V
ΔV_ADJ/ΔI_OUT
V_DO
V_ADJ Load Regulation⁽³⁾⁽¹⁾
Dropout Voltage⁽⁴⁾
10 mA ≤ I_OUT ≤ 800 mA
I_OUT = 800 mA
-
0.10
0.20
-
%/A
-
-
260
mV
(1) The line and load regulation specification contains only the typical number. However, the limits for line and load regulation are included
in the output voltage tolerance specification.
(2) Line regulation is defined as the change in V_ADJ from the nominal value due to change in the voltage at the input.
(3) Load regulation is defined as the change in V_ADJ from the nominal value due to change in the load current at the output.
(4) Dropout voltage (V_DO) is typically defined as the input to output voltage differential (V_IN - V_OUT) where the input voltage is low enough to
cause the output voltage to drop 2%. For the LP38511-ADJ, the minimum operating voltage of 2.25V is the limiting factor when the
programed output voltage is less than typically 1.80V.
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