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TPS5210 Datasheet(PDF) 20 Page - Texas Instruments |
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TPS5210 Datasheet(HTML) 20 Page - Texas Instruments |
20 / 31 page 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-V−Input Power Stage Components Ref Des Function 4−A Out 8−A Out 12−A Out 20−A Out 40−A Out C101 Input Bulk Capacitor Sanyo, 16SV100M, 100−uF, 16−V, 20% Sanyo, 16SA470M, 2 x 470−uF, 16−V, 20% Sanyo, 16SA470M, 2 x 470−uF, 16−V, 20% Sanyo, 16SA470M, 3 x 470−uF, 16−V, 20% Sanyo, 16SA470M, 4 x 470−uF, 16−V, 20% C102 Input Mid−Freq Capacitor muRata, GRM42−6Y5V105Z025A 1.0−uF, 25−V, +80%−20%, Y5V muRata, GRM42−6Y5V225Z016A 2.2−uF, 16−V, +80%−20%, Y5V muRata, GRM42−6Y5V225Z016A 2.2−uF, 16−V, +80%−20%, Y5V muRata, GRM42−6Y5V105Z025A 3 x 1.0−uF, 25−V, +80%−20%, Y5V muRata, GRM42−6Y5V105Z025A 4 x 1.0−uF, 25−V, +80%−20%, Y5V C103 Input Hi−Freq Bypass Capacitor muRata, GRM39X7R104K016A 0.1−uF, 16−V, X7R muRata, GRM39X7R104K016A, 0.1−uF, 16−V, X7R muRata, GRM39X7R104K016A, 2 x 0.1−uF, 16−V, X7R muRata, GRM39X7R104K016A, 3 x 0.1−uF, 16−V, X7R muRata, GRM39X7R104K016A, 4 x 0.1−uF, 16−V, X7R C104 Snubber Capacitor muRata, GRM39X7R102K050A, 1000−pF, 50−V, X7R muRata, GRM39X7R102K050A, 1000−pF, 50−V, X7R muRata, GRM39X7R102K050A, 2 x 1000−pF, 50−V, X7R muRata, GRM39X7R102K050A, 3 x 1000−pF, 50−V, X7R muRata, GRM39X7R102K050A, 4 x 1000−pF, 50−V, X7R C105 Output Bulk Capacitor Sanyo, 6TPB150M, 3 x 150−uF, 6.3−V, 20% Sanyo, 4SP820M, 820−uF, 4−V, 20% Sanyo, 4SP820M, 2 x 820−uF, 4−V, 20% Sanyo, 4SP820M, 3 x 820−uF, 4−V, 20% Sanyo, 4SP820M, 4 x 820−uF, 4−V, 20% C106 Output Hi−Freq Bypass Capacitor muRata, GRM39X7R104K016A, 0.1−uF, 16−V, X7R muRata, GRM39X7R104K016A, 0.1−uF, 16−V, X7R muRata, GRM39X7R104K016A, 2 x 0.1−uF, 16−V, X7R muRata, GRM39X7R104K016A, 3 x 0.1−uF, 16−V, X7R muRata, GRM39X7R104K016A, 4 x 0.1−uF, 16−V, X7R L101 Input Filter Inductor CoilCraft, DO1608C−332, 3.3−uH, 2.0−A Coiltronics, UP2B−2R2, 2.2−uH, 7.2−A Coiltronics, UP2B−2R2, 2.2−uH, 7.2−A Coiltronics, UP3B−1R0, 1−uH, 12.5−A Coiltronics, UP3B−1R0, 1−uH, 12.5−A L102 Output Filter Inductor CoilCraft, DO3316P−332, 3.3−uH, 6.1−A Coiltronics, UP3B−2R2, 2.2−uH, 9.2−A Coiltronics, UP4B−1R5, 1.5−uH, 13.4−A MicroMetals, T68−8/90 Core w/7T #16, 1.0−uH, 25−A Pulse Engineering, P1605, 1.0−uH, 50−A R101 Lo−Side Gate Resistor 3.3−Ohm, 1/16−W, 5% 3.3−Ohm, 1/16−W, 5% 2 x 3.3−Ohm, 1/16−W, 5% 3 x 3.3−Ohm, 1/16−W, 5% 4 x 3.3−Ohm, 1/16−W, 5% R102 Snubber Resistor 2.7−Ohm, 1/10−W, 5% 2.7−Ohm, 1/10−W, 5% 2 x 2.7−Ohm, 1/10−W, 5% 3 x 2.7−Ohm, 1/10−W, 5% 4 x 2.7−Ohm, 1/10−W, 5% Q101 Power Switch Siliconix, Si4410, NMOS, 13−mOhm Siliconix, Si4410, NMOS, 13−mOhm Siliconix, 2 x Si4410, NMOS, 13−mOhm Siliconix, 2 x Si4410, NMOS, 13−mOhm IR, 2 x IRF7811, NMOS, 11−mOhm Q102 Synchron- ous Switch Siliconix, Si4410, NMOS, 13−mOhm Siliconix, Si4410, NMOS, 13−mOhm Siliconix, 2 x Si4410, NMOS, 13−mOhm Siliconix, 3 x Si4410, NMOS, 13−mOhm IR, 4 x IRF7811, NMOS, 11−mOhm Nominal Frequency† 220 KHz 330 KHz 240 KHz 140 KHz 168 KHz Hysteresis Window 20 mV 20 mV 20 mV 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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Similar Description - TPS5210_16 |
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