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TPS7A7200RGWT Datasheet(PDF) 6 Page - Texas Instruments |
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TPS7A7200RGWT Datasheet(HTML) 6 Page - Texas Instruments |
6 / 29 page SNS FB PG 50mV 1 2 3 4 EN SS 1.6V 800mV 12 11 10 9 Thermal Pad OUT SNS FB PG 50mV IN EN SS NC 1.6V 1 2 3 4 5 15 14 13 12 11 Thermal Pad TPS7A7200 SBVS136C – MARCH 2012 – REVISED MAY 2012 www.ti.com PIN CONFIGURATIONS RGT PACKAGE RGW PACKAGE 3-mm × 3-mm QFN-16 5-mm × 5-mm QFN-20 (TOP VIEW) (TOP VIEW) PIN DESCRIPTIONS NAME RGW RGT DESCRIPTION 50mV, 100mV, Output voltage setting pins. These pins should be connected to ground or left floating. Connecting these 200mV, 5, 6, 7, 4, 5, 6, pins to ground increases the output voltage by the value of the pin name; multiple pins can be 400mV, 9, 10, 11 8, 9, 10 simultaneously connected to GND to select the desired output voltage. Leave these pins floating (open) 800mV, when not in use. See the USER-CONFIGURABLE OUTPUT VOLTAGE section for more details. 1.6V Enable pin. Driving this pin to logic high enables the device; driving the pin to logic low disables the device. EN 14 12 See the ENABLE AND SHUTDOWN THE DEVICE section for more details. Output voltage feedback pin. Connected to the error amplifier. See the USER-CONFIGURABLE OUTPUT FB 3 2 VOLTAGE and TRADITIONAL ADJUSTABLE CONFIGURATION sections for more details. GND 8, 18 7 Ground pin. 15, 16, Unregulated supply voltage pin. It is recommended to connect an input capacitor to this pin. See INPUT IN 13, 14 17 CAPACITOR REQUIREMENTS for more details. Not internally connected. The NC pin is not connected to any electrical node. It is strongly recommended to NC 12 — connect this pin and the thermal pad to a large-area ground plane. See the Power Dissipation section for more details. Regulated output pin. A 4.7- μF or larger capacitance is required for stability. See OUTPUT CAPACITOR OUT 1, 19, 20 15, 16 REQUIREMENTS for more details. Active-high power good pin. An open-drain output that indicates when the output voltage reaches 90% of PG 4 3 the target. See POWER GOOD for more details. Output voltage sense input pin. See the USER-CONFIGURABLE OUTPUT VOLTAGE and TRADITIONAL SNS 2 1 ADJUSTABLE CONFIGURATION sections for more details. Soft-start pin. Leaving this pin open provides soft-start of the default setting. Connecting an external capacitor between this pin and the ground enables the soft-start function by SS 13 11 forming an RC-delay circuit in combination with the integrated resistance on the silicon. See the SOFT- START section for more details. It is strongly recommended to connect the thermal pad to a large-area ground plane. If available, connect Thermal Pad an electrically-floating, dedicated thermal plane to the thermal pad as well. 6 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated |
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