TL431Z Datasheet, PDF (13/15 Pages) List of Unclassifed Manufacturers – PROGRAMMABLE PRECISION SHUNT REGULATOR

PROGRAMMABLE PRECISION SHUNT REGULATOR
APPLICATION INFORMATION
TL431Z/AZ /CZ
V_I(BATT)
IN
8.2㏀
OUT
LM317
Adjust
V_{O ~~ 5V, 1.5A}
243Ω
0.1%
TL431
243Ω
0.1%
Figure 21. Precision 5-V 1.5A Regulator
V_I(BATT)
R_B
(SEE NOTE A)
TL431
V_{O ~~ 5V}
27.4㏁
0.1%
27.4㏁
0.1%
NOTE A : R_B Should provide cathode current≥1㎃ to the TL431.
Figure 22. Efficient 5-V Precision Regulator
12V
TL431
6.8㏁
5V ^10㏁
10㏁
0.1%
10㏁
0.1%
X
NOT
USED
-
+
TL598
FEED BACK
Figure 23. PWM Converter With Reference
Jan. 2007 - Rev 1.0
13
HTC