Datasheet

LP38841-ADJ
www.ti.com SNVS305C –FEBRUARY 2005–REVISED APRIL 2013
ABSOLUTE MAXIMUM RATINGS
(1)(2)
Storage Temperature Range −65°C to +150°C
Lead Temp. (Soldering, 5 seconds) 260°C
Human Body Model
(3)
2 kV
ESD Rating
Machine Model
(4)
200V
Power Dissipation
(5)
Internally Limited
V
IN
Supply Voltage (Survival) −0.3V to +6V
V
BIAS
Supply Voltage (Survival) −0.3V to +7V
Shutdown Input Voltage (Survival) −0.3V to +7V
V
ADJ
-0.3V to +6V
I
OUT
(Survival)
(6)
Internally Limited
Output Voltage (Survival) −0.3V to +6V
Junction Temperature −40°C to +150°C
(1) Absolute maximum ratings indicate limits beyond which damage to the component may occur. Operating ratings indicate conditions for
which the device is intended to be functional, but do not ensure specific performance limits. For ensured specifications, see the
ELECTRICAL CHARACTERISTICS. Specifications do not apply when operating the device outside of its rated operating conditions.
(2) If Military/Aerospace specified devices are required, please contact the TI Sales Office/ Distributors for availability and specifications.
(3) The human body model is a 100 pF capacitor discharged through a 1.5k resistor into each pin.
(4) The machine model is a 220 pF capacitor discharged directly into each pin.
(5) At elevated temperatures, device power dissipation must be derated based on package thermal resistance and heatsink thermal values.
If power dissipation causes the junction temperature to exceed specified limits, the device will go into thermal shutdown.
(6) If used in a dual-supply system where the regulator load is returned to a negative supply, the output pin must be diode clamped to
ground.
OPERATING RATINGS
V
IN
Supply Voltage (V
OUT
+ V
DO
) to 5.5V
Shutdown Input Voltage 0 to +5.5V
I
OUT
0.8A
Operating Junction Temperature Range −40°C to +125°C
V
BIAS
Supply Voltage 4.5V to 5.5V
V
OUT
0.56V to 1.5V
ELECTRICAL CHARACTERISTICS
Limits in standard typeface are for T
J
= 25°C, and limits in boldface type apply over the full operating temperature range.
Unless otherwise specified: V
IN
= V
O
(NOM) + 1V, V
BIAS
= 4.5V, I
L
= 10 mA, C
IN
= 10 µF CER, C
OUT
= 22 µF CER, V
S/D
= V
BIAS
.
Min/Max limits are specified through testing, statistical correlation, or design.
Symbol Parameter Conditions MIN TYP
(1)
MAX Units
V
ADJ
Adjust Pin Voltage 10 mA < I
L
< 0.8A 0.552 0.56 0.568
V
O
(NOM) + 1V ≤ V
IN
≤ 5.5V V
0.543 0.577
4.5V ≤ V
BIAS
≤ 5.5V
I
ADJ
Adjust Pin Bias Current 10 mA < I
L
< 0.8A
V
O
(NOM) + 1V ≤ V
IN
≤ 5.5V 1 µA
4.5V ≤ V
BIAS
≤ 5.5V
ΔV
O
/ΔV
IN
Output Voltage Line Regulation
(2)
V
O
(NOM) + 1V ≤ V
IN
≤ 5.5V 0.01 %/V
ΔV
O
/ΔI
L
Output Voltage Load Regulation
(3)
10 mA < I
L
< 0.8A 0.4
0.1 %/A
1.3
V
DO
Dropout Voltage
(4)
I
L
= 0.8A 120
75 mV
205
(1) Typical numbers represent the most likely parametric norm for 25°C operation.
(2) Output voltage line regulation is defined as the change in output voltage from nominal value resulting from a change in input voltage.
(3) Output voltage load regulation is defined as the change in output voltage from nominal value as the load current increases from no load
to full load.
(4) Dropout voltage is defined as the minimum input to output differential required to maintain the output with 2% of nominal value.
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