LP38690-ADJ_16 Datasheet, PDF (5/27 Pages) Texas Instruments – 1-A Low Dropout CMOS Linear Regulator

www.ti.com
LP38690-ADJ, LP38692-ADJ
SNVS323I – DECEMBER 2004 – REVISED FEBRUARY 2016
6.5 Electrical Characteristics
Unless otherwise specified: typical limits are for T_J = 25°C, minimum and maximum limits apply over the full operating
temperature range; V_IN = V_OUT + 1 V , C_IN = C_OUT = 10 µF, I_LOAD = 10 mA. Minimum and maximum limits are specified through
testing, statistical correlation, or design.
PARAMETER
TEST CONDITIONS
MIN TYP⁽¹⁾
MAX UNIT
V_ADJ
ΔV_OUT/ΔV_IN
ΔV_OUT/ΔI_LOAD
V_IN – V_OUT
I_Q
ADJ pin voltage
Output voltage line regulation⁽²⁾
Output voltage load regulation⁽³⁾
Dropout voltage⁽⁴⁾
Quiescent current
V_IN = 2.7 V, T_J = 25°C
3.2 V ≤ V_IN ≤ 10 V
100 µA < I_LOAD < 1 A
V_OUT + 0.5 V ≤ V_IN ≤ 10 V
I_LOAD = 25 mA
1 mA < I_LOAD < 1 A
V_IN = V_OUT + 1 V
V_OUT = 1.8 V, I_LOAD = 1 A
V_OUT = 2.5 V, I_LOAD = 0.1 A
V_OUT = 2.5 V, I_LOAD = 1A
V_OUT = 3.3 V, I_LOAD = 0.1 A
V_OUT = 3.3 V, I_LOAD = 1 A
V_OUT = 5 V, I_LOAD = 0.1 A
V_OUT = 5 V, I_LOAD = 1 A
V_IN ≤ 10 V, I_LOAD = 100 µA – 1A
V_EN ≤ 0.4 V, T_J = 25°C
(LP38692-ADJ Only)
1.219
1.187
1.25
1.25
0.03
1.8
950
80
800
65
650
45
450
55
0.001
1.281
V
1.313
0.1 %/V
5 %/A
1600
145
1300
110 mV
1000
100
800
100
µA
1
I_L(MIN)
I_FB
PSRR
Minimum load current
Foldback current limit
Ripple rejection
V_IN – V_OUT ≤ 4 V
V_IN – V_OUT > 5 V
V_IN – V_OUT < 4 V
V_IN = V_OUT + 2 V_(DC), with 1 V_(p-p) /
120-Hz ripple
450
1500
55
100 µA
mA
dB
T_SD
Thermal shutdown activation
(junction temperature)
160
°C
T_SD (HYST)
Thermal shutdown hysteresis
(junction temperature)
10
°C
I_ADJ
e_n
V_OUT (LEAK)
ADJ input leakage current
Output noise
Output leakage current
V_ADJ = 0 –1.5 V
V_IN = 10 V, T_J = 25°C
BW = 10 Hz to 10 kHz
V_OUT = 3.3 V
V_OUT = V_OUT(NOM) + 1 V at 10 V_IN
T_J = 25°C
Output = OFF
–100
0.01
0.7
0.5
100 nA
µV/√Hz
2 µA
0.4
V_EN
Enable voltage (LP38692-ADJ
Only)
Output = ON, V_IN = 4 V
Output = ON, V_IN = 6 V
1.8
3
V
Output = ON, V_IN = 10 V
4
I_EN
Enable pin leakage (LP38692-
ADJ Only)
V_EN = 0 V or 10 V , V_IN = 10 V
T_J = 25°C
–1
0.001
1 µA
(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 © 2004–2016, Texas Instruments Incorporated
Submit Documentation Feedback
5
Product Folder Links: LP38690-ADJ LP38692-ADJ