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TPS62745 Datasheet(PDF) 3 Page - Texas Instruments |
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TPS62745 Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 34 page  VSEL2 VSEL4 GND VIN EN SW 2 3 12 11 10 EN_VIN_SW 4 9 VSEL1 VSEL3 8 7 5 6 VOUT VIN_SW PG DSS Package 12-Pin WSON Top View 1 TPS62745, TPS627451 www.ti.com SLVSC68A – JUNE 2015 – REVISED JUNE 2015 5 Device Comparison Table (1) Device Number Output voltage range marking TPS62745 1.8 V to 3.3 V in 100-mV steps PD5I TPS627451 1.3 V to 2.8 V in 100-mV steps PD6I (1) For all available packages, see the orderable addendum at the end of the datasheet. 6 Pin Configuration and Functions Pin Functions PIN I/O DESCRIPTION NAME NO. VIN power supply pin. Connect this pin close to the VIN terminal of the input capacitor. A VIN 1 PWR ceramic capacitor of 4.7 µF from this pin to GND is required. This is the switch pin which is connected to the internal MOSFET switches. Connect the SW 2 OUT inductor to this terminal. GND supply pin. Connect this pin close to the GND terminal of the input and output GND 3 PWR capacitor. This pin connects / disconnects the internal switch from VIN to pin VIN_SW. With EN_VIN_SW 4 IN EN_VIN_SW = Low, the switch is open. With EN_VIN_SW = High, the switch is closed connecting VIN with VIN_SW. If not used, the pin should be tied to GND. Feedback pin for the internal feedback divider network and regulation loop. Connect this pin VOUT 5 IN directly to the output capacitor with a short trace. This is the output of a switch connecting VIN with VIN_SW when EN_VIN_SW = High. If not VIN_SW 6 OUT used, leave this pin open. PG 7 OUT This is an open drain power good output. VSEL4 8 IN VSEL3 9 IN Output voltage selection pins. See Table 1 and Table 2 for VOUT selection. These pins must be terminated. VSEL2 10 IN VSEL1 11 IN High level enables the devices, low level turns the device into shutdown mode. This pin must EN 12 IN be terminated. EXPOSED Not electrically connected to the IC. Connect this pad to GND and use it as a central GND THERMAL NC plane. PAD Copyright © 2015, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: TPS62745 TPS627451 |
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