TC120 Datasheet, PDF (7/14 Pages) Microchip Technology – PWM/PFM Step-Down Combination Regulator/Controller

TC120
TABLE 3-1: SUGGESTED COMPONENTS AND SUPPLIERS
Type
Surface Mount
Inductors
Sumida
CD54 Series
CDRH Series
Coilcraft
DO Series
Capacitors
AVX
TPS Series
Sprague
595D Series
Miniature
Through-Hole
Standard
Through-Hole
Sumida
RCH Series
Coilcraft
PCH Series
Sanyo
OS-CON Series
Nichicon
PL Series
United Chemi-Conv
LXF Series
Diodes
ON Semiconductor
MBRS340T3
Nihon
NSQ Series
Matsushita
MA737
IRC
OAR Series
Transistors
Silconix
Little Foot MOSFET Series
Zetex FZT749
PNP Bipolar Transistor
Toshiba 2SA1213 PNP
Transistor
ON Semiconductor
TMOS Power MOSFETs
FIGURE 3-2:
TC120 WITH ADDED COMPONENTS FOR IMPROVED EFFICIENCY AT
HIGH OUTPUT CURRENTS
V_IN ≤ 5V
V_IN > 5V
C_P
2200 pF
Ceramic
D₁
IN5817
V_IN
L_X
EXTW
EXT
TC120XX03
CPC
GND
SHDN/SS
SENSE
a) For V_IN ≤ 5V
C_P
2200 pF
Ceramic
10V
Zener
Diode
D₁
IN5817
V_IN
L_X
EXTW
EXT
TC120XX03
CPC
GND
SHDN/SS
SENSE
b) For V_IN > 5V
© 2002 Microchip Technology Inc.
DS21365B-page 7