Datasheet

LP38511-ADJ
www.ti.com SNVS545D –JANUARY 2009–REVISED APRIL 2013
Absolute Maximum Ratings
(1)(2)
Storage Temperature Range −65°C to +150°C
PFM 260°C, 10s
Soldering Temperature
(3)
SO PowerPad 260°C, 10s
ESD Rating
(4)
±2 kV
Power Dissipation
(5)
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
2.25V to 5.5V
Output Voltage, V
OUT
V
ADJ
to 5V
Enable Input Voltage, V
EN
0.0V to 5.5V
Output Current (DC) 1 mA to 800 mA
Junction Temperature
(2)
−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
2.25V ≤ V
IN
≤ 5.5V 495.0 505.0
V
ADJ
V
ADJ
Accuracy
(1)
500. mV
10 mA ≤ I
OUT
≤ 800 mA 490.0 510.0
I
ADJ
ADJ Pin Bias Current 2.25V ≤ V
IN
≤ 5.5V - 1 - nA
0.03
ΔV
ADJ
/ΔV
IN
V
ADJ
Line Regulation
(2)(1)
2.25V ≤ V
IN
≤ 5.5V - - %/V
0.06
0.10
ΔV
ADJ
/ΔI
OUT
V
ADJ
Load Regulation
(3)(1)
10 mA ≤ I
OUT
≤ 800 mA - - %/A
0.20
V
DO
Dropout Voltage
(4)
I
OUT
= 800 mA - - 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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