參數資料
型號： TPS5210PWPRG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： 2 A SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDSO28
封裝： GREEN, PLASTIC, HTSSOP-28
文件頁數： 13/35頁
文件大?。?/td> 846K
代理商： TPS5210PWPRG4
TPS5210
PROGRAMMABLE SYNCHRONOUS BUCK REGULATOR CONTROLLER
SLVS171A SEPTEMBER 1998 REVISED MAY 1999
20
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
Table 2. Power Stage Components
Ref
Function
12-VInput Power Stage Components
Ref
Des
Function
4A Out
8A Out
12A Out
20A Out
40A Out
C101
Input Bulk
Capacitor
Sanyo,
16SV100M,
100uF, 16V, 20%
Sanyo,
16SA470M,
2 x 470uF, 16V, 20%
Sanyo,
16SA470M,
2 x 470uF, 16V, 20%
Sanyo,
16SA470M,
3 x 470uF, 16V, 20%
Sanyo,
16SA470M,
4 x 470uF, 16V, 20%
C102
Input
MidFreq
Capacitor
muRata,
GRM426Y5V105Z025A
1.0uF, 25V,
+80%20%,
Y5V
muRata,
GRM426Y5V225Z016A
2.2uF, 16V,
+80%20%,
Y5V
muRata,
GRM426Y5V225Z016A
2.2uF, 16V,
+80%20%,
Y5V
muRata,
GRM426Y5V105Z025A
3 x 1.0uF, 25V,
+80%20%,
Y5V
muRata,
GRM426Y5V105Z025A
4 x 1.0uF, 25V,
+80%20%,
Y5V
C103
Input
HiFreq
Bypass
Capacitor
muRata,
GRM39X7R104K016A
0.1uF, 16V, X7R
muRata,
GRM39X7R104K016A,
0.1uF, 16V, X7R
muRata,
GRM39X7R104K016A,
2 x 0.1uF, 16V, X7R
muRata,
GRM39X7R104K016A,
3 x 0.1uF, 16V, X7R
muRata,
GRM39X7R104K016A,
4 x 0.1uF, 16V, X7R
C104
Snubber
Capacitor
muRata,
GRM39X7R102K050A,
1000pF, 50V, X7R
muRata,
GRM39X7R102K050A,
1000pF, 50V, X7R
muRata,
GRM39X7R102K050A,
2 x 1000pF, 50V, X7R
muRata,
GRM39X7R102K050A,
3 x 1000pF, 50V, X7R
muRata,
GRM39X7R102K050A,
4 x 1000pF, 50V, X7R
C105
Output Bulk
Capacitor
Sanyo,
6TPB150M,
3 x 150uF, 6.3V, 20%
Sanyo,
4SP820M,
820uF, 4V, 20%
Sanyo,
4SP820M,
2 x 820uF, 4V, 20%
Sanyo,
4SP820M,
3 x 820uF, 4V, 20%
Sanyo,
4SP820M,
4 x 820uF, 4V, 20%
C106
Output
HiFreq
Bypass
Capacitor
muRata,
GRM39X7R104K016A,
0.1uF, 16V, X7R
muRata,
GRM39X7R104K016A,
0.1uF, 16V, X7R
muRata,
GRM39X7R104K016A,
2 x 0.1uF, 16V, X7R
muRata,
GRM39X7R104K016A,
3 x 0.1uF, 16V, X7R
muRata,
GRM39X7R104K016A,
4 x 0.1uF, 16V, X7R
L101
Input
Filter
Inductor
CoilCraft,
DO1608C332,
3.3uH, 2.0A
Coiltronics,
UP2B2R2,
2.2uH, 7.2A
Coiltronics,
UP2B2R2,
2.2uH, 7.2A
Coiltronics,
UP3B1R0,
1uH, 12.5A
Coiltronics,
UP3B1R0,
1uH, 12.5A
L102
Output
Filter
Inductor
CoilCraft,
DO3316P332,
3.3uH, 6.1A
Coiltronics,
UP3B2R2,
2.2uH, 9.2A
Coiltronics,
UP4B1R5,
1.5uH, 13.4A
MicroMetals,
T688/90 Core w/7T
#16, 1.0uH, 25A
Pulse Engineering,
P1605,
1.0uH, 50A
R101
LoSide
Gate
Resistor
3.3Ohm,
1/16W, 5%
3.3Ohm,
1/16W, 5%
2 x 3.3Ohm,
1/16W, 5%
3 x 3.3Ohm,
1/16W, 5%
4 x 3.3Ohm,
1/16W, 5%
R102
Snubber
Resistor
2.7Ohm,
1/10W, 5%
2.7Ohm,
1/10W, 5%
2 x 2.7Ohm,
1/10W, 5%
3 x 2.7Ohm,
1/10W, 5%
4 x 2.7Ohm,
1/10W, 5%
Q101
Power
Switch
Siliconix, Si4410,
NMOS, 13mOhm
Siliconix, Si4410,
NMOS, 13mOhm
Siliconix, 2 x Si4410,
NMOS, 13mOhm
Siliconix, 2 x Si4410,
NMOS, 13mOhm
IR, 2 x IRF7811,
NMOS, 11mOhm
Q102
Synchron-
ous
Switch
Siliconix, Si4410,
NMOS, 13mOhm
Siliconix, Si4410,
NMOS, 13mOhm
Siliconix, 2 x Si4410,
NMOS, 13mOhm
Siliconix, 3 x Si4410,
NMOS, 13mOhm
IR, 4 x IRF7811,
NMOS, 11mOhm
Nominal Frequency
220 KHz
330 KHz
240 KHz
140 KHz
168 KHz
Hysteresis Window
20 mV
10 mV
Nominal frequency measured with Vo set to 2 V.
The values listed above are recommendations based on actual test circuits. Many variations of the above are
possible based upon the desires and/or requirements of the user. Performance of the circuit is equally, if not
more, dependent upon the layout than on the specific components, as long as the device parameters are not
exceeded. Fast-response, low-noise circuits require critical attention to the layout details. Even though the
operating frequencies of typical power supplies are relatively low compared to today’s microprocessor circuits,
the power levels and edge rates can cause severe problems both in the supply and the load. The power stage,
having the highest current levels and greatest dv/dt rates, should be given the greatest attention.
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