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LM5160A Datasheet(PDF) 3 Page - Texas Instruments |
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LM5160A Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 34 page  LM5160 THERMAL PAD 1 2 3 4 5 6 7 8 9 10 11 12 AGND PGND VIN EN/UVLO RON SS SW SW BST VCC FB FPWM LM5160A, LM5160 www.ti.com SNVSA03B – OCTOBER 2014 – REVISED JULY 2015 5 Pin Configuration and Functions WSON 12 LEAD TOP Pin Functions PIN DESCRIPTION NUMBER NAME HTSSOP WSON AGND 1 1 Analog Ground. Ground connection of internal control circuits. PGND 2 2 Power Ground. Ground connection of the internal synchronous rectifier FET. VIN 3 3 Input supply connection. Operating input range is 4.5 V to 65 V. EN/UVLO 4 4 Precision enable. Input pin of under-voltage lockout (UVLO) comparator. On-time programming pin. A resistor between this pin and VIN sets the switch on-time as a RON 5 5 function of input voltage. SS 6 6 Soft-start. Connect a capacitor from SS to AGND to control output rise time and limit overshoot. Forced PWM logic input pin. Connect to AGND for discontinuous conduction mode (DCM) with FPWM 8 7 light loads. Connect to VCC for continuous conduction mode (CCM) at all loads and Fly-Buck configuration. FB 9 8 Feedback input of voltage regulation comparator. VCC 10 9 Internal high voltage startup regulator bypass capacitor pin. Bootstrap capacitor pin. Connect a capacitor between BST and SW to bias gate driver of high BST 11 10 side buck FET. Switch node. Source connection of high side buck FET and drain connection of low side SW 12,13 11,12 synchronous rectifier FET. NC 7,14 - No Connection. Exposed Pad. Connect to AGND and printed circuit board ground plane to improve power EP dissipation. Copyright © 2014–2015, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LM5160A LM5160 |
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Similar Description - LM5160A_15 |
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