Features
 Single 4.3 V to 17 V application or Wide Input Voltage Range from 2.0 V to 17 V with an External VCC
 Precision Reference Voltage (0.6 V +/- 0.5%)
 Enhanced Fast COT engine stable with Ceramic Output Capacitors and No External Compensation
 Optional Forced Continuous Conduction Mode and Diode Emulation for Enhanced Light Load Efficiency
 Programmable Switching Frequency from 600 kHz to 2 MHz
 Monotonic Start-Up with Four Selectable Soft-Start Time & Enhanced Pre-Bias Start-Up
 Thermally Compensated Internal Over Current Protection with Four Selectable Settings
 Enable input with Voltage Monitoring Capability & Power Good Output
 Thermal Shut Down
 Operating Temp: -40 °C < Tj < 125 °C
 Small Size: 4 mm x 5 mm PQFN
 Halogen-free and RoHS2 Compliant with Exemption 7a
Potential applications
 Server Applications
 Storage Applications
 Telecom & Datacom Applications
 Distributed Point of Load Power Architectures
Product validation
Qualified for industrial applications according to the relevant tests of JEDEC47/20/22
Description
The TDA38820 is an easy-to-use, fully integrated dc - dc Buck regulator. The onboard PWM controller and
OptiMOS™ FETs with integrated bootstrap diode make TDA38820 a small footprint solution, providing highefficient
power delivery. Furthermore, it uses a fast Constant On-Time (COT) control scheme, which simplifies the
design efforts and achieves fast control response.
The TDA38820 has an internal low dropout voltage regulator, allowing operations with a single supply. It can also
operate with an external bias supply, extending the operating input voltage (PVin) range from 2.0 V to 17 V.
The TDA38820 is a versatile regulator, offering programmable switching frequency from 600 kHz to 2 MHz, four
selectable current limits, four selectable soft-start time, Forced Continuous Conduction Mode (FCCM) and Diode
Emulation Mode (DEM) operation.
It also features important protection functions, such as pre-bias start-up, thermally compensated current limit,
over voltage and under voltage protection, and thermal shutdown to give required system level security in the
event of fault conditions.