The TPS6281xM is family of pin-to-pin 1-A,
2-A, 3-A, and 4-A synchronous step-down DC/DC converters. All devices offer high efficiency
and ease of use. The family of devices is based on a peak current mode control topology.
Low-resistive switches allow up to 4-A continuous output current at high ambient
temperature. The switching frequency is externally adjustable from 1.8 MHz to 4 MHz and can
also be synchronized to an external clock in the same frequency range. The device can
automatically enter power save mode (PSM) at light loads to maintain high efficiency across
the whole load range. The device provides 1% output voltage accuracy in PWM mode which helps
design a power supply with high output voltage accuracy. The SS/TR pin allows the user to
set the start-up time or form tracking of the output voltage to an external source, allowing
external sequencing of different supply rails and limiting the inrush current during
start-up.
The TPS6281xM device is available in a 2-mm
× 3-mm VQFN package with wettable flanks.
Device
InformationPART NUMBER | PACKAGE(1) | BODY SIZE (NOM) |
---|
TPS62810M | VQFN | 2 mm × 3 mm |
TPS62811M |
TPS62812M |
TPS62813M |
(1) For all available packages, see the orderable addendum at the end of
the data sheet.
Simplified Schematic
Efficiency Versus Output Current;
VOUT = 3.3
V; PWM and PFM; fS = 2.25 MHz