Datasheet

TPS54140A
www.ti.com SLVSB55B –MAY 2012–REVISED JANUARY 2014
REVISION HISTORY
Changes from Original (May 2012) to Revision A Page
• Changed Description text From: "within 93% to 107% of its nominal voltage." To: "within 94% to 107% of its nominal
voltage." ................................................................................................................................................................................ 1
• Changed the values of the Hysteresis current in the Electrical Characteristics table .......................................................... 3
• Changed text in the Slow Start and Tracking Pin (SS/TR) section From: "VIN UVLO is excedded, EN pin pulled
below 1.25V" To: "VIN pin is below the VIN UVLO, EN pin pulled below 1.25V" .............................................................. 16
• Changed Start Input Voltage (rising VIN) voltage From: 7.25 V To: 7.7 V ......................................................................... 29
• Changed Start Input Voltage (falling VIN) voltage From: 6.25 V To: 6.7 V ........................................................................ 29
• Changed Equation 29 ......................................................................................................................................................... 30
• Changed 7.25V to 7.7V and 6.25V to 6.7V in the Under Voltage Lock Out Set Point section. ......................................... 34
• Changed Equation 47 ......................................................................................................................................................... 35
• Changed Equation 48 and Equation 49 .............................................................................................................................. 36
• Changed Equation 51 ......................................................................................................................................................... 36
Changes from Revision A (July 2012) to Revision B Page
• Deleted deleted SWIFT from the data sheet Title and Features .......................................................................................... 1
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