Datasheet Texas Instruments TPS54617RUVR/2801 — 数据表

Typical Size
3,5 mm x 7 mm TPS54617
www.ti.com . SLVS880A – NOVEMBER 2008 – REVISED JANUARY 2009 3-V TO 6-V INPUT, 6-A, SMALL SYNCHRONOUS-BUCK
SWITCHER WITH INTEGRATED FETs (SWIFTв„ў)
FEATURES 1 DESCRIPTION 30-mΩ MOSFET Switches for High Efficiency
at 6-A Continuous Output Adjustable Output Voltage Down to 0.9 V With
1% Accuracy Externally Compensated for Design Flexibility Wide PWM Frequency: Fixed 350 kHz, 550 kHz,
or Adjustable 280 kHz to 1.6 MHz Synchronizable to 1.6MHz Load Protected by Peak Current Limit and
Thermal Shutdown Small 3.5mm x 7mm Package and Similar
Layout to TPS54610 Reduces Board Area and
Total Cost SWIFT Documentation Application Notes, and
SwitcherProв„ў Software: www.ti.com/swift
23 As a member of the SWIFTв„ў family of dc/dc
regulators, the TPS54617 low-input voltage
high-output current synchronous buck PWM
converter offers the same features as the TPS54610
in a small package and higher switching frequency.
Included on the substrate with the listed features are
a true, high performance, voltage error amplifier that
enables maximum performance under transient
conditions and flexibility in choosing the output filter L
and C components; an undervoltage-lockout circuit to
prevent start-up until the input voltage reaches 3 V; …