LP2981-N_16 Datasheet, PDF (5/30 Pages) Texas Instruments – Micropower 100-mA Ultralow Dropout Regulator

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LP2981-N
SNOS773N – MARCH 2000 – REVISED APRIL 2016
6.4 Thermal Information
THERMAL METRIC⁽¹⁾
LP2981-N
DBV (SOT-23)
UNIT
5 PINS
R_θJA
R_θJC(top)
R_θJB
ψ_JT
ψ_JB
R_θJC(bot)
Junction-to-ambient thermal resistance, High-K
Junction-to-case (top) thermal resistance
Junction-to-board thermal resistance
Junction-to-top characterization parameter
Junction-to-board characterization parameter
Junction-to-case (bottom) thermal resistance
175.7
78.0
30.8
2.8
30.3
N/A
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report, SPRA953.
6.5 Electrical Characteristics
Unless otherwise specified: T_J = 25°C, V_IN = V_O(NOM) + 1 V, I_L = 1 mA, C_OUT = 1 μF, V_ON/OFF = 2 V.⁽¹⁾
PARAMETER
TEST CONDITIONS
LP2981AI-XX ⁽²⁾
MIN TYP MAX
LP2981I-XX ⁽²⁾
MIN TYP MAX
UNIT
ΔV_O
Output voltage
tolerance
ΔV_O/ΔV_IN
Output voltage line
regulation
V_IN – V_O Dropout voltage⁽³⁾
I_GND
Ground pin current
I_L = 1 mA
1 mA < I_L < 100 mA
1 mA < I_L < 100 mA
–40°C ≤ T_J ≤ 125°C
V_O(NOM) + 1 V ≤ V_IN ≤ 16 V
V_O(NOM) + 1 V ≤ V_IN ≤ 16 V
–40°C ≤ T_J ≤ 125°C
I_L = 0 mA
I_L = 0 mA, –40°C ≤ T_J ≤ 125°C
I_L = 1 mA
I_L = 1 mA, –40°C ≤ T_J ≤ 125°C
I_L = 25 mA
I_L = 25 mA, –40°C ≤ T_J ≤ 125°C
I_L = 100 mA
I_L = 100 mA, –40°C ≤ T_J ≤ 125°C
I_L = 0 mA
I_L = 0 mA, –40°C ≤ T_J ≤ 125°C
I_L = 1 mA
I_L = 1 mA, –40°C ≤ T_J ≤ 125°C
I_L = 25 mA
I_L = 25 mA, –40°C ≤ T_J ≤ 125°C
I_L = 100 mA
I_L = 100 mA, –40°C ≤ T_J ≤ 125°C
V_ON/OFF < 0.3 V
V_ON/OFF < 0.15 V
–40°C ≤ T_J ≤ 125°C
−0.75
−1
−2.5
0.007
1
7
70
200
65
80
200
600
0.01
0.05
0.75
1
2.5
0.014
0.032
3
5
10
15
100
150
250
375
95
125
110
170
300
550
800
1500
0.8
2
−1.25
−2
−3.5
0.007
1
7
70
200
65
80
200
600
0.01
0.05
1.25
2 _%VNOM
3.5
0.014
%/V
0.032
3
5
10
15
mV
100
150
250
375
95
125
110
170
300
550 ^μA
800
1500
0.8
2
(1) Minimum and maximum limits are ensured through test, design, or statistical correlation over the junction temperature (T_J) range of
–40°C to 125°C, unless otherwise stated. Typical values represent the most likely parametric norm at T_A = 25°C, and are provided for
reference purposes only.
(2) Limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured through correlation using Statistical
Quality Control (SQC) methods. The limits are used to calculate Average Outgoing Quality Level (AOQL).
(3) Dropout voltage is defined as the input to output differential at which the output voltage drops 100 mV below the value measured with a
1-V differential.
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