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TPS54315QPWPRQ1 Datasheet(PDF) 3 Page - Texas Instruments |
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TPS54315QPWPRQ1 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 20 page TPS54311-Q1, TPS54312-Q1 TPS54313-Q1, TPS54314-Q1 TPS54315-Q1, TPS54316-Q1 SGLS242G − OCTOBER 2004 − REVISED SEPTEMBER 2008 www.ti.com 3 PACKAGE DISSIPATION RATINGS(1) (2) PACKAGE THERMAL IMPEDANCE JUNCTION-TO-AMBIENT TA = 25°C POWER RATING TA = 70°C POWER RATING TA = 85°C POWER RATING 20-Pin PWP with solder 26 °C/W 3.85 W(3) 2.12 W 1.54 W 20-Pin PWP without solder 57.5 °C/W 1.73 W 0.96 W 0.69 W (1) For more information on the PWP package, see the Texas Instruments technical brief (SLMA002). (2) Test board conditions: 1. 3” × 3”, 2 layers, Thickness: 0.062” 2. 1.5 oz copper traces located on the top of the PCB 3. 1.5 oz copper ground plane on the bottom of the PCB 4. Ten thermal vias (see the recommended land pattern in the Applications section of this data sheet) (3) Maximum power dissipation may be limited by overcurrent protection. ELECTRICAL CHARACTERISTICS TJ = −40°C to 125°C, VIN = 3 V to 6 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT SUPPLY VOLTAGE, VIN VIN Input voltage range 3 6 V fs = 350 kHz, FSEL ≤ 0.8 V, RT open 6.2 9.6 Quiescent current fs = 550 kHz, Phase pin open FSEL ≥ 2.5 V, RT open, 8.4 12.8 mA Shutdown, SS/ENA = 0 V 1 1.4 UNDER VOLTAGE LOCK OUT Start threshold voltage, UVLO 2.95 3 V Stop threshold voltage, UVLO 2.7 2.8 V Hysteresis voltage, UVLO 0.14 V Rising and falling edge deglitch, UVLO(1) 2.5 µs BIAS VOLTAGE Output voltage, VBIAS I(VBIAS) = 0 2.7 2.8 2.95 V Output current, VBIAS(2) 100 µA OUTPUT VOLTAGE TPS54311 TJ = 25°C, VIN = 5 V 0.9 V TPS54311 3 ≤ VIN ≤ 6 V, 0 ≤ IL ≤ 3 A, −40 ≤ TJ ≤ 125 −2.5% 2.5% TPS54312 TJ = 25°C, VIN = 5 V 1.2 V TPS54312 3 ≤ VIN ≤ 6 V, 0 ≤ IL ≤ 3 A, −40 ≤ TJ ≤ 125 −2.5% 2.5% TPS54313 TJ = 25°C, VIN = 5 V 1.5 V V Output voltage TPS54313 3 ≤ VIN ≤ 6 V, 0 ≤ IL ≤ 3 A, −40 ≤ TJ ≤ 125 −2.5% 2.5% VO Output voltage TPS54314 TJ = 25°C, VIN = 5 V 1.8 V TPS54314 3 ≤ VIN ≤ 6 V, 0 ≤ IL ≤ 3 A, −40 ≤ TJ ≤ 125 −2.5% 2.5% TPS54315 TJ = 25°C, VIN = 5 V 2.5 V TPS54315 3.2 ≤ VIN ≤ 6 V, 0 ≤ IL ≤ 3 A, −40 ≤ TJ ≤ 125 −2.5% 2.5% TPS54316 TJ = 25°C, VIN = 5 V 3.3 V TPS54316 4 ≤ VIN ≤ 6 V, 0 ≤ IL ≤ 3 A, −40 ≤ TJ ≤ 125 −2.5% 2.5% REGULATION Line regulation(1) (3) IL = 1.5 A, 350 ≤ fs ≤ 550 kHz, TJ = 85°C 0.21 %/V Load regulation(1) (3) IL = 0 A to 3 A, 350 ≤ fs ≤ 550 kHz, TJ = 85°C 0.21 %/A (1) Specified by design (2) Static resistive loads only (3) Specified by the circuit used in Figure 10. |
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