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TPS51275 Datasheet(PDF) 7 Page - Texas Instruments |
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TPS51275 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 31 page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 TPS51275 TPS51275B Thermal Pad TPS51275C CS1 VFB1 VREG3 VFB2 CS2 DRVL2 VIN VREG5 VO1 DRVL1 TPS51275, TPS51275B, TPS51275C www.ti.com SLUSB45B – JUNE 2012 – REVISED MARCH 2013 DEVICE INFORMATION RUK PACKAGE 20 PINS (TOP VIEW) PIN FUNCTIONS PIN NO. TPS51275 NAME I/O DESCRIPTION TPS51275B TPS51275C CS1 1 O Sets the channel 1 OCL trip level. CS2 5 O Sets the channel 2OCL trip level. DRVH1 16 O High-side driver output DRVH2 10 O High-side driver output DRVL1 15 O Low-side driver output DRVL2 11 O Low-side driver output EN1 20 I Channel 1 enable. EN2 6 I Channel 2 enable. PGOOD 7 O Power good output flag. Open drain output. Pull up to external rail via a resistor SW1 18 O Switch-node connection. SW2 8 O Switch-node connection. VBST1 17 I Supply input for high-side MOSFET (bootstrap terminal). Connect capacitor from this pin to SW terminal. VBST2 9 I VCLK 19 O Clock output for charge pump. VFB1 2 I Voltage feedback Input VFB2 4 I Power conversion voltage input. Apply the same voltage as drain voltage of high-side MOSFETs of VIN 12 I channel 1 and channel 2. VO1 14 I Output voltage input, 5-V input for switch-over. VREG3 3 O 3.3-V LDO output. VREG5 13 O 5-V LDO output. Thermal pad GND terminal, solder to the ground plane Copyright © 2012–2013, Texas Instruments Incorporated Submit Documentation Feedback 7 |
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