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LP38798 Datasheet(PDF) 8 Page - Texas Instruments

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Part # LP38798
Description  LP38798-ADJ High PSRR, Ultra Low Noise, 800 mA Linear Voltage Regulator for RF/Analog Circuits
PDF  23 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LP38798 Datasheet(HTML) 8 Page - Texas Instruments

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V
IN (V)
Vout = 5.0V
Vout = 3.3V
Vout = 1.2V
C038
UVLO
-0.5
-0.4
-0.3
-0.2
-0.1
0.0
0.1
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-50
-25
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25
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75
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125
TEMPERATURE, T
J (ƒC )
C029
V
IN = 5.5 V
Normalized to T
J = 25ƒC
-0.5
0.0
0.5
1.0
1.5
2.0
2.5
TIME (50µs/DIV)
Ven
Vout 125
ƒC
Vout 25
ƒC
Vout -40
ƒC
C027
V
IN = 5.5 V
V
OUT = 1.5 V
-0.5
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
TIME (50µs/DIV)
Ven
Vout -40
ƒC
Vout 25
ƒC
Vout 125
ƒC
C028
V
IN = 5.5 V
V
OUT = 5.0 V
1.00
1.05
1.10
1.15
1.20
1.25
1.30
1.35
1.40
0
2
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INPUT VOLTAGE, V
IN (V)
C025
Rising V
EN (ON)
Falling V
EN (OFF)
-0.5
0.0
0.5
1.0
1.5
2.0
2.5
TIME (50µs/DIV)
Ven
Vout 125
ƒC
Vout 25
ƒC
Vout -40
ƒC
C026
V
IN = 5.5 V
V
OUT = 1.2 V
LP38798
SNOSCT6A – MARCH 2013 – REVISED MAY 2013
www.ti.com
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Unless otherwise specified: VIN = 5.5V, VOUT = 5.0 V, IOUT = 10 mA, COUT = 10 µF MLCC 16V X7R, TJ = 25°C.
Figure 14. Enable Thresholds vs VIN
Figure 15. Start-up Time, VOUT = 1.2 V
Figure 16. Start-up Time, VOUT = 1.5V
Figure 17. Start-up Time, VOUT = 5.0 V
Figure 18. VOUT vs. Rising VIN
Figure 19. VFB Variation vs. TJ
8
Copyright © 2013, Texas Instruments Incorporated
Product Folder Links: LP38798



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