ADVANCED INFORMATION
TK654xx
APPLICATION INFORMATION (CONT.)
VIN = 5 V IOUT = 100 mA
VIN = 3.2 V IOUT = 100 mA
Switching to Buck
Switching to Buck
Characteristics of this application under lighter loads but similar supply range are shown below.
VIN = 3.2 V IOUT = 20 mA
VIN = 5 V IOUT = 20 mA
Full Cycle
Full Cycle
In conclusion, the ability to provide a clean signal during transmission/reception can be done with linear regulators in a
predictable way, the novelty comes in considering the Buck and Linear concept which has the advantage of high
efficiency while not compromising the linear regulator’s low noise characteristics.
The overall effect being longer battery life while maintaining low RF interference in a wireless system.
Page 26
September 1999 TOKO, Inc.
TOKO [ TOKO, INC ]
