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LP3990-Q1_15 Datasheet, PDF (8/22 Pages) Texas Instruments – LP3990-Q1 150-mA Linear Voltage Regulator for Digital Applications
LP3990-Q1
SNVSA66 – OCTOBER 2014
www.ti.com
Typical Performance Characteristics (continued)
Unless otherwise specified, CIN = 1 µF ceramic, COUT = 0.47 µF ceramic, VIN = VOUT(NOM) + 1 V, TA = 25°C, VOUT(NOM) = 1.5 V;
VEN = VIN.
IL = 1 mA
10
VOUT = 3.3V
1
VOUT = 1.5V
0.1
TIME (50 2s/DIV)
0.01
0.1
1
10
100
FREQUENCY (kHz)
Figure 11. Enable Start-Up Time
Figure 12. Noise Density
8
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