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TPS74701DRCT Datasheet(PDF) 5 Page - Texas Instruments |
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TPS74701DRCT Datasheet(HTML) 5 Page - Texas Instruments |
5 / 24 page www.ti.com DEVICE INFORMATION OUT OUT FB SS GND 10 9 8 7 6 IN IN PG BIAS EN 1 2 3 4 5 Thermal Pad PIN DESCRIPTIONS TPS74701 SBVS099A – NOVEMBER 2007 – REVISED NOVEMBER 2007 DRC PACKAGE 3mm × 3mm SON (TOP VIEW) TPS74701 NAME PIN # DESCRIPTION IN 1, 2 Input to the device. Enable pin. Driving this pin high enables the regulator. Driving this pin low puts the regulator into EN 5 shutdown mode. This pin must not be left unconnected. SS 7 Soft-Start pin. A capacitor connected on this pin to ground sets the start-up time. If this pin is left unconnected, the regulator output soft-start ramp time is typically 200 µs. BIAS 4 Bias input voltage for error amplifier, reference, and internal control circuits. Power Good pin. An open-drain, active-high output that indicates the status of VOUT. When VOUT exceeds the PG trip threshold, the PG pin goes into a high-impedance state. When VOUT is below this threshold the pin is driven to a low-impedance state. A pull-up resistor from 10k Ω to PG 3 1M Ω should be connected from this pin to a supply of up to 5.5V. The supply can be higher than the input voltage. Alternatively, the PG pin can be left unconnected if output monitoring is not necessary. Feedback pin. The feedback connection to the center tap of an external resistor divider network FB 8 that sets the output voltage. This pin must not be left floating. OUT 9, 10 Regulated output voltage. A small capacitor (total typical capacitance ≥ 2.2 µF, ceramic) is needed from this pin to ground to assure stability. NC N/A No connection. This pin can be left floating or connected to GND to allow better thermal contact to the top-side plane. GND 6 Ground Thermal Pad — Should be soldered to the ground plane for increased thermal performance. Copyright © 2007, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Link(s): TPS74701 |
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