Datasheet

TPS60120, TPS60121, TPS60122, TPS60123, TPS60124, TPS60125
REGULATED 200-mA HIGH EFFICIENCY CHARGE PUMP
DC/DC CONVERTERS
SLVS257B – NOVEMBER 1999 – REVISED AUGUST 2000
18
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
capacitor selection (continued)
Table 3. Recommended Capacitors
MANUFACTURER PART NUMBER CAPACITANCE CASE SIZE TYPE
Taiyo Yuden
LMK212BJ105KG–T 1 µF 0805 Ceramic
LMK212BJ225MG–T 2.2 µF 0805 Ceramic
LMK316BJ475KL–T 4.7 µF 1206 Ceramic
LMK325BJ106MN–T 10 µF 1210 Ceramic
LMK432BJ226MM–T 22 µF 1812 Ceramic
AVX
0805ZC105KAT2A 1 µF 0805 Ceramic
1206ZC225KAT2A 2.2 µF 1206 Ceramic
TPSC475035R0600 4.7 µF Case C Tantalum
TPSC106025R0500 10 µF Case C Tantalum
TPSC226016R0375 22 µF Case C Tantalum
Sprague
595D106X0016B2T 10 µF Case B Tantalum
595D226X06R3B2T 22 µF Case B Tantalum
595D226X0020C2T 22 µF Case B Tantalum
Kemet
T494C156K010AS 10 µF Case C Tantalum
T494C226M010AS 22 µF Case C Tantalum
NOTE: Case code compatibility with EIA 535BAAC and CECC30801 molded chips.
Table 4. Recommended Capacitor Manufacturers
MANUFACTURER CAPACITOR TYPE INTERNET SITE
Taiyo Yuden X7R/X5R ceramic http://www.t–yuden.com/
AVX X7R/X5R ceramic
TPS-series tantalum
http://www.avxcorp.com/
Sprague 595D-series tantalum
593D-series tantalum
http://www.vishay.com/
Kemet T494-series tantalum http://www.kemet.com/
power dissipation
The power dissipated in the TPS6012x depends on output current and mode of operation (1.5x or doubler
voltage conversion mode). It is described by the following:
P
DISS
=
1
– 1
V
O
× I
O
(Efficiency η mainly depends on V
I
and also on I
O
. See efficiency graphs.)
P
DISS
must be less than that allowed by the package rating. See the absolute maximum ratings for 20-pin PWP
package power-dissipation limits and deratings.