1 Features
• Configured for a wide range of applications
– Input voltage range: 4.2V to 17V
– Output voltage range: 0.6V to 7V
– Reference voltage: 0.6V
– ±1.5% reference voltage accuracy at 25°C
– ±2% reference voltage accuracy from –40°C to
125°C
– Integrated 100mΩ and 55mΩ FETs
– Low quiescent current for TPS563203: 110μA
– Switching frequency: 600kHz
– Maximum 95% large duty cycle operation
– Fixed soft-start time: 1.4ms
• Easy of use and small design size
– Eco-mode at light loading for TPS563203
– FCCM mode at light loading for TPS563206
– D-CAP3™ control mode with fast transient
response
– Support start-up with prebiased output
– Non-latch for OT and UVLO protection
– Cycle-by-cycle overcurrent limit
– Hiccup mode for UV protection
– Operating junction temperature range from –
40°C to 125°C
– SOT563 package, 1.6mm × 1.6mm
• Create a custom design using the TPS563203 with
the WEBENCH® Power Designer
• Create a custom design using the TPS563206 with
the WEBENCH® Power Designer

2 Applications
• TV
• Digital set top box (STB)
• Building automation
• Broadband fixed line access

3 Description
TPS563203, TPS563206 are simple, easy-to-use, 3A
synchronous buck converters in a SOT563 package.
The devices are designed to operate with minimum
external component counts and designed to achieve
low standby current.
This switch mode power supply (SMPS) device
employs D-CAP3 control mode providing a
fast transient response and supporting both lowequivalent
series resistance (ESR) output capacitors,
such as specialty polymer and ultra-low ESR
ceramic capacitors with no external compensation
components.
TPS563203 operates in Eco-mode, which maintains
high-efficiency during light load operation. TPS563206
operates in FCCM mode, which keeps the same
frequency and lower output ripple during all load
conditions. The device integrates complete protection
through OCP, UVLO, OTP, and UVP with hiccup.
TPS56320x is available in a 6-pin, 1.6mm × 1.6mm
SOT563 (DRL) package and specified from a –40°C
to 125°C junction temperature.