TPS57114CQRTERQ1

The TPS57114C-Q1 device is a full-featured 6-V, 4-A,
synchronous step-down current-mode converter with
two integrated MOSFETs.
The TPS57114C-Q1 device enables small designs by
integrating the MOSFETs, implementing current-mode
control to reduce external component count, reducing
inductor size by enabling up to 2-MHz switching
frequency, and minimizing the IC footprint with a small
3-mm × 3-mm thermally enhanced QFN package.
The TPS57114C-Q1 device provides accurate
regulation for a variety of loads with an accurate ±1%
voltage reference (Vref) over temperature.
Efficiency is maximized through the integrated 12-mΩ
MOSFETs and 515-μA typical supply current. Using
the enable pin, shutdown supply current is reduced to
5.5 µA by entering a shutdown mode.
The internal undervoltage lockout setting is 2.45 V,
but programming the threshold with a resistor network
on the enable pin can increase the setting. The slowstart pin controls the output-voltage start-up ramp. An
open-drain power-good signal indicates the output is
within 93% to 107% of the nominal voltage.
Frequency foldback and thermal shutdown protect the
device during an overcurrent condition.


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    SPECIFICATION

    • Qualified for automotive applications
    • AEC-Q100 qualified with the following results:
    – Device temperature grade 1: –40°C to +125°C
    ambient operating temperature range
    – Device HBM ESD classification level 2
    – Device CDM ESD classification level C4B
    • Functional Safety-Capable
    – Documentation available to aid functional safety
    system design
    • Two 12-mΩ (typical) MOSFETs for high efficiency
    at 4-A loads
    • 200-kHz to 2-MHz switching frequency
    • 0.8 V ± 1% voltage reference over temperature
    (–40°C to +150°C)
    • Synchronizes to external clock
    • Adjustable slow start and sequencing
    • UV and OV power-good output
    • –40°C to +150°C operating junction temperature
    range
    • Thermally enhanced 3-mm × 3-mm 16-pin WQFN
    • Pin-compatible to the TPS54418
    • Newer product available: TPS62810-Q1, 6-V stepdown converter in 3-mm × 2-mm VQFN package
    with wettable flanks