LP38841-ADJ_15 Datasheet, PDF (3/15 Pages) Texas Instruments – 0.8A Ultra Low Dropout Adjustable Linear Regulators Stable with Ceramic Output Capacitors

LP38841-ADJ
www.ti.com
SNVS305C – FEBRUARY 2005 – REVISED APRIL 2013
ABSOLUTE MAXIMUM RATINGS⁽¹⁾⁽²⁾
Storage Temperature Range
Lead Temp. (Soldering, 5 seconds)
ESD Rating
Power Dissipation⁽⁵⁾
Human Body Model⁽³⁾
Machine Model⁽⁴⁾
V_IN Supply Voltage (Survival)
V_BIAS Supply Voltage (Survival)
Shutdown Input Voltage (Survival)
V_ADJ
I_OUT (Survival)⁽⁶⁾
Output Voltage (Survival)
Junction Temperature
−65°C to +150°C
260°C
2 kV
200V
Internally Limited
−0.3V to +6V
−0.3V to +7V
−0.3V to +7V
-0.3V to +6V
Internally Limited
−0.3V to +6V
−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
Shutdown Input Voltage
I_OUT
Operating Junction Temperature Range
V_BIAS Supply Voltage
V_OUT
(V_OUT + V_DO) to 5.5V
0 to +5.5V
0.8A
−40°C to +125°C
4.5V to 5.5V
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
I_ADJ
ΔV_O/ΔV_IN
ΔV_O/ΔI_L
V_DO
Adjust Pin Voltage
Adjust Pin Bias Current
Output Voltage Line Regulation⁽²⁾
Output Voltage Load Regulation⁽³⁾
10 mA < I_L < 0.8A
V_O(NOM) + 1V ≤ V_IN ≤ 5.5V
4.5V ≤ V_BIAS ≤ 5.5V
10 mA < I_L < 0.8A
V_O(NOM) + 1V ≤ V_IN ≤ 5.5V
4.5V ≤ V_BIAS ≤ 5.5V
V_O(NOM) + 1V ≤ V_IN ≤ 5.5V
10 mA < I_L < 0.8A
Dropout Voltage⁽⁴⁾
I_L = 0.8A
0.552 0.56 0.568
0.543
0.577
V
1
µA
0.01
%/V
0.1
0.4
1.3
%/A
75
120
205
mV
(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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