Electronic Components Datasheet Search |
|
TPS54226PWPR Datasheet(PDF) 6 Page - Texas Instruments |
|
|
TPS54226PWPR Datasheet(HTML) 6 Page - Texas Instruments |
6 / 32 page SW VBST EN VO VFB GND PGND VO 4 6 9 10 11 1 2 7 12 VIN SS VIN VREG5 EN Logic UV OV Protection Logic Ref SS UV OV UVLO UVLO Softstart SS REF TSD Ref VREG5 5 PG 1mF 13 8 VCC Ceramic Capacitor 3 SGND SGND PGND VCC +20% -10% Ref VREG5 Control logic 1 shot XCON -30% OCP SW PGND ZC SW PGND 14 VREG5 TPS54226 SLVSA14E – OCTOBER 2009 – REVISED JULY 2011 www.ti.com FUNCTIONAL BLOCK DIAGRAM A. Block diagram shown is for PWP 14 pin package. QFN 16 pin package block diagram is identical except for pin out. OVERVIEW The TPS54226 is a 2-A synchronous step-down (buck) converter with two integrated N-channel MOSFETs and Auto-Skip Eco-Mode ™ to improve light lode efficiency. It operates using D-CAP2™ mode control. The fast transient response of D-CAP2 ™ control reduces the output capacitance required to meet a specific level of performance. Proprietary internal circuitry allows the use of low ESR output capacitors including ceramic and special polymer types. DETAILED DESCRIPTION PWM Operation The main control loop of the TPS54226 is an adaptive on-time pulse width modulation (PWM) controller that supports a proprietary D-CAP2 ™ mode control. D-CAP2™ mode control combines constant on-time control with an internal compensation circuit for pseudo-fixed frequency and low external component count configuration with both low ESR and ceramic output capacitors. It is stable even with virtually no ripple at the output. At the beginning of each cycle, the high-side MOSFET is turned on. This MOSFET is turned off after internal one 6 Copyright © 2009–2011, Texas Instruments Incorporated Product Folder Link(s): TPS54226 |
Similar Part No. - TPS54226PWPR |
|
Similar Description - TPS54226PWPR |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |