LP2982 Datasheet, PDF (5/28 Pages) National Semiconductor (TI) – Micropower 50 mA Ultra Low-Dropout Regulator

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LP2982
SNVS128K – MARCH 2000 – REVISED JUNE 2016
6.4 Thermal Information
THERMAL METRIC⁽¹⁾
LP2982
DBV (SOT-23)
UNIT
R_θJA
R_θJC(top)
R_θJB
ψ_JT
ψ_JB
Junction-to-ambient thermal resistance, High-K⁽²⁾
Junction-to-case (top) thermal resistance
Junction-to-board thermal resistance
Junction-to-top characterization parameter
Junction-to-board characterization parameter
5 PINS
175.7
121.8
29.5
16.1
29.0
°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.
(2) Thermal resistance value R_θJA is based on the EIA/JEDEC High-K printed circuit board defined by: JESD51-7 - High Effective Thermal
Conductivity Test Board for Leaded Surface Mount Packages.
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.
PARAMETER
TEST CONDITIONS
LP2982AI-XX ⁽¹⁾
MIN TYP MAX
LP2982I-XX ⁽¹⁾
MIN TYP MAX
UNIT
ΔV_O
Output voltage
tolerance
ΔV_O/ΔV_IN
Output voltage line
regulation
V_DO
Dropout voltage⁽²⁾
I_GND
Ground pin current
I_L = 1 mA
1 mA < I_L < 50 mA
1 mA < I_L < 50 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 = 10 mA
I_L = 10 mA, –40°C ≤ T_J ≤ 125°C
I_L = 50 mA
I_L = 50 mA, –40°C ≤ T_J ≤ 125°C
I_L = 80 mA
I_L = 80 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 = 10 mA
I_L = 10 mA, –40°C ≤ T_J ≤ 125°C
I_L = 50 mA
I_L = 50 mA, –40°C ≤ T_J ≤ 125°C
I_L = 80 mA
I_L = 80 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
−1
1
−1.5
1.5
−2
2
0.007 0.014
0.032
1
3
5
7
10
15
40
60
90
120
150
225
180
225
325
65
95
125
80
110
170
140
220
460
375
600
1200
525
750
1400
0.01
0.8
0.1
2
−1.5
−2
−3.5
1.5
2 _%VNOM
3.5
0.007
0.014
%/V
0.032
1
3
5
7
10
15
40
60
mV
90
120
150
225
180
225
325
65
95
125
80
110
170
140
220
460
375
600 ^μA
1200
525
750
1400
0.01
0.8
0.1
2
(1) Temperature range are ensured through correlation using statistical quality control (SQC) methods. The limits are used to calculate
average outgoing quality level (AOQL).
(2) 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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