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TPS79501DCQR Datasheet(PDF) 4 Page - Texas Instruments |
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TPS79501DCQR Datasheet(HTML) 4 Page - Texas Instruments |
4 / 23 page www.ti.com Current Sense Thermal Shutdown UVLO UVLO R 1 FB R 2 External to the Device Overshoot Detect 250 k Ω Quickstart Bandgap Reference 1.225 V IN V IN EN GND OUT 300 Ω V REF ILIM SHUTDOWN Current Sense Thermal Shutdown UVLO UVLO R 1 R 2 R 2 = 40 kΩ Overshoot Detect 250 k Ω Quickstart Bandgap Reference 1.225 V IN V IN EN GND NR OUT 300 Ω V REF ILIM SHUTDOWN TPS795xx SLVS350G – OCTOBER 2002 – REVISED JULY 2006 FUNCTIONAL BLOCK DIAGRAM—ADJUSTABLE VERSION FUNCTIONAL BLOCK DIAGRAM—FIXED VERSION Table 1. Terminal Functions SOT223 (DCQ) 3x3 SON (DRB) NAME PIN NO. PIN NO. DESCRIPTION IN 2 1, 2 Unregulated input to the device GND 3, 6 6 Regulator ground EN 1 8 Driving the enable pin (EN) high turns on the regulator. Driving this pin low puts the regulator into shutdown mode. EN can be connected to IN if not used. NR 5 5 Noise-reduction pin for fixed versions only. Connecting an external capacitor to this pin bypasses noise generated by the internal bandgap, which improves power-supply rejection and reduces output noise. (Not available on adjustable versions.) FB 5 5 Feedback input voltage for the adjustable device. (Not available on fixed voltage versions.) OUT 4 3, 4 Regulator output. NC – 7 Not connected 4 Submit Documentation Feedback |
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