LP38690_15 Datasheet, PDF (6/31 Pages) Texas Instruments – LP38690, LP38692 1-A Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors

LP38690, LP38692
SNVS322L – DECEMBER 2004 – REVISED MARCH 2015
www.ti.com
Electrical Characteristics (continued)
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
V_OUT
Output leakage current
(LEAK)
V_OUT = V_OUT(NOM) + 1 V at 10 V_IN
0.5
12
µA
Output = OFF, −40°C ≤ T_J ≤ 125°C
Output = ON, V_IN = 4 V
V_EN
Enable voltage (LP38692
only)
−40°C ≤ T_J ≤ 125°C
Output = ON, V_IN = 6 V
−40°C ≤ T_J ≤ 125°C
Output = ON, V_IN = 10 V
−40°C ≤ T_J ≤ 125°C
I_EN
Enable pin leakage
V_EN = 0 V or 10 V, V_IN = 10 V
1.8
3
4
–1
0.001
0.4
V
1
µA
6.6 Typical Performance Characteristics
Unless otherwise specified: T_J = 25°C, C_IN = C_OUT = 10 µF, EN pin is tied to V_IN (LP38692 only), V_OUT = 1.8 V, V_IN = V_OUT + 1
V, I_L = 10 mA.
1.2
1.0
0.8
0.6
0.4
0.2
0.0
10
C_OUT = 1 2F
100
1k
10k
FREQUENCY (Hz)
100k
1.0
0.8
0.6
0.4
0.2
0.0
10
C_OUT = 10 2F
100
1k
10k
FREQUENCY (Hz)
100k
Figure 1. Noise vs Frequency
1.5
C_OUT = 100 2F
1.0
0.5
0.0
10
100
1k
10k
FREQUENCY (Hz)
100k
Figure 2. Noise vs Frequency
60
50
40
30
20 ^COUT ^{= 10 2F}
V_IN(DC) = 5.3V
10 ^{VIN(AC) = 1V(p-p)}
V_OUT = 3.3V
0
10
100
1k
10k
FREQUENCY (Hz)
100k
Figure 3. Noise vs Frequency
Figure 4. Ripple Rejection
6
Submit Documentation Feedback
Copyright © 2004–2015, Texas Instruments Incorporated
Product Folder Links: LP38690 LP38692