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TPS74201RGWT Datasheet(PDF) 4 Page - Texas Instruments |
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TPS74201RGWT Datasheet(HTML) 4 Page - Texas Instruments |
4 / 26 page www.ti.com BLOCK DIAGRAM Thermal Limit Soft-Start Discharge OUT V OUT FB PG IN BIAS SS EN Hysteresis andDe-Glitch Current Limit UVLO 0.73 A m 0.8V Reference 0.9 ´ V REF GND C SS R 1 R 2 V =0.8x( ) OUT 1+ R 1 R 2 TPS74201 SBVS064F – DECEMBER 2005 – REVISED OCTOBER 2007 Table 1. Standard 1% Resistor Values for Programming the Output Voltage(1) R1 (kΩ) R2 (kΩ) VOUT (V) Short Open 0.8 0.619 4.99 0.9 1.13 4.53 1.0 1.37 4.42 1.05 1.87 4.99 1.1 2.49 4.99 1.2 4.12 4.75 1.5 3.57 2.87 1.8 3.57 1.69 2.5 3.57 1.15 3.3 (1) VOUT = 0.8 × (1 + R1/R2) Table 2. Standard Capacitor Values for Programming the Soft-Start Time(1) CSS SOFT-START TIME Open 0.1ms 470pF 0.5ms 1000pF 1ms 4700pF 5ms 0.01 μF 10ms 0.015 μF 16ms (1) tSS(s) = 0.8 × CSS(F)/7.3 × 10 –7 4 Submit Documentation Feedback Copyright © 2005–2007, Texas Instruments Incorporated Product Folder Link(s): TPS74201 |
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