LP38798 Datasheet, PDF (17/23 Pages) Texas Instruments – LP38798-ADJ High PSRR, Ultra Low Noise, 800 mA Linear Voltage Regulator for RF/Analog Circuits

LP38798
www.ti.com
Typical Applications
V_IN
5.50V
V_EN
GND
SNOSCT6A – MARCH 2013 – REVISED MAY 2013
1
IN
2
IN
12
OUT
11
OUT
V_OUT
5.00V
C_IN
1 PF
MLCC
C_CP
10 nF
3
IN(CP)
10
OUT(FB)
4
CP
LP38798
SET ^{9 (5.00V)}
5
EN
FB ^{8 (1.20V)}
6
GND(CP)
DAP
7
GND
+ COUT
10 PF
R1
47.5k
R2
15.0k
GND
Figure 41. Typical Application, V_OUT = 5.0V
V_IN
5.50V
L1
10 PH
1 PF
MLCC
+
C_IN1
33 PF
50 m:
Tant
V_EN
1
IN
12
OUT
2
IN
11
OUT
C_IN2
47 PF
MLCC
C_CP
10 nF
3
IN(CP)
10
OUT(FB)
4
CP
LP38798
SET ^{9 (5.00V)}
5
EN
FB ^{8 (1.20V)}
GND
6
GND(CP)
DAP
7
GND
V_OUT
5.00V
+ COUT
10 PF
R1
47.5k
R2
15.0k
GND
Figure 42. Improving PSRR at High Frequencies
Copyright © 2013, Texas Instruments Incorporated
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