LP38690_15 Datasheet, PDF (5/31 Pages) Texas Instruments – LP38690, LP38692 1-A Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors

www.ti.com
LP38690, LP38692
SNVS322L – DECEMBER 2004 – REVISED MARCH 2015
6.5 Electrical Characteristics
Unless otherwise specified: V_IN = V_OUT + 1 V, C_IN = C_OUT = 10 µF, I_LOAD = 10 mA, and limits are for T_J = 25°C. Minimum (MIN)
and maximum (MAX) limits are specified through testing, statistical correlation, or design.
PARAMETER
TEST CONDITIONS
MIN
TYP ⁽¹⁾
MAX UNIT
–2.5
2.5
V_OUT
Output voltage tolerance
ΔV_OUT/Δ Output voltage line
V_IN
regulation ⁽²⁾
ΔV_OUT/ΔI Output voltage load
L
regulation ⁽³⁾
V_IN –
V_OUT
Dropout voltage⁽⁴⁾
I_Q
Quiescent current
I_L(MIN) Minimum load current
I_FB
PSRR
Foldback current limit
Ripple rejection
100 µA < I_L < 1 A
V_O + 1 V ≤ V_IN ≤ 10 V
−40°C ≤ T_J ≤ 125°C
V_OUT + 0.5 V ≤ V_IN ≤ 10 V
I_L = 25 mA
V_OUT + 0.5 V ≤ V_IN ≤ 10 V
I_L = 25 mA
−40°C ≤ T_J ≤ 125°C
1 mA < I_L < 1 A
V_IN = V_OUT + 1 V
1 mA < I_L < 1 A
V_IN = V_OUT + 1 V
−40°C ≤ T_J ≤ 125°C
V_OUT = 1.8 V
I_L = 1 A
V_OUT = 1.8 V
I_L = 1 A
−40°C ≤ T_J ≤ 125°C
V_OUT = 2.5 V
I_L = 0.1 A
I_L = 1 A
V_OUT = 2.5 V
−40°C ≤ T_J ≤ 125°C
I_L = 0.1 A
I_L = 1 A
V_OUT = 3.3 V
I_L = 0.1 A
I_L = 1 A
V_OUT = 3.3 V
−40°C ≤ T_J ≤ 125°C
I_L = 0.1 A
I_L = 1 A
V_OUT = 5 V
I_L = 0.1 A
I_L = 1 A
V_OUT = 5 V,
−40°C ≤ T_J ≤ 125°C
I_L = 0.1 A
I_L = 1 A
V_IN ≤ 10 V, I_L = 100 µA to 1 A
V_IN ≤ 10 V, I_L = 100 µA to 1 A
−40°C ≤ T_J ≤ 125°C
V_EN ≤ 0.4 V (LP38692 only)
V_IN – V_OUT ≤ 4 V
−40°C ≤ T_J ≤ 125°C
V_IN – V_OUT > 5 V
V_IN – V_OUT < 4 V
V_IN = V_OUT + 2 V_(DC), with 1V_(p-p) /
120 Hz ripple
–5
0.03
1.8
950
80
800
65
650
45
450
55
0.001
450
1500
55
5
%V_OUT
%/A
1
5
1600
145
1300
mV
110
1000
100
800
100
µA
100
mA
dB
T_SD
T_SD
(HYST)
Thermal shutdown activation
(junction temp)
Thermal shutdown hysteresis
(junction temp)
160
°C
10
e_n
Output noise
V_OUT = 3.3 V, BW = 10 Hz to 10 kHz
0.7
µV/√Hz
(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 1 mA to
full load.
(4) Dropout voltage is defined as the minimum input to output differential required to maintain the output within 100 mV of nominal value.
Copyright © 2004–2015, Texas Instruments Incorporated
Submit Documentation Feedback
5
Product Folder Links: LP38690 LP38692