1 Features
• Configured for a wide range of applications
– 3-V to 16-V input voltage range
– 0.6-V to 7-V output voltage range
– 0.6-V reference voltage
– ±1% reference accuracy at 25°C
– ±1.5% reference accuracy at –40°C to 125°C
– Integrated 28.8-mΩ and 15.4-mΩ RDSON FET
– 120-μA low quiescent current
– 1.2-MHz switching frequency
– Supports maximum 95% duty cycle operation
– Precision EN threshold voltage
– 1.39-ms fixed typical soft-start time
• Ease of use and small solution size
– Eco-mode (TPS564242) and FCCM mode at
light loading (TPS564247)
– Part of a full P2P family including solutions for 4
A, 5 A, and 6 A and FCCM/ECO operation
– D-CAP3™ control topology
– Support start-up with prebiased output
– Non-latch for OV/OT/UVLO protection
– Hiccup mode for UV protection
– Cycle-by-cycle OC and NOC limit
– 6-pin SOT-563 package
• Create a custom design using the TPS564242 with
the WEBENCH® Power Designer
• Create a custom design using the TPS564247 with
the WEBENCH® Power Designer
2 Applications
• LCD TV, STB and DVR, streaming media player
• IP network camera, video doorbell, building
security gateway
• WLAN/Wi-Fi access point, modem (cable/DSL/
GFAST), solid state drive
3 Description
The TPS56424x is simple, easy-to-use, high power
density, high efficiency synchronous buck converter.
The device supports input voltage ranging from 3 V to
16 V and up to 4-A continuous current with a SOT-563
package.
The TPS56424x uses D-CAP3 topology to provide
a fast transient response and support low-ESR
output capacitors with no requirement for external
compensation. It has two grounds, GND and AGND,
which should be connected together for optimal
thermal performance. AGND also provides a good
load and line regulation. The device can support up
to 95% duty operation.
The TPS564242 operates in Eco-mode, which
maintains high efficiency during light loading. The
TPS564247 operates in FCCM mode, which keeps
the same frequency and lower output ripple during
all load conditions. It integrates complete protection
through OVP, OCP, UVLO, OTP, and UVP with
hiccup. The device is available in 1.6-mm × 1.6-
mm SOT-563 package and has an optimized pinout
for easy PCB layout. The junction temperature is
specified from –40°C to 125°C.