TPS562209EVM-601: 1.05V @ 2A, 4.5 ~ 17V in, Buck

Summary

The TPS562209 is a single, adaptive on-time, D-CAP2™-mode, synchronous buck converter requiring a very low external component count. The D-CAP2 control circuit is optimized for low-ESR output capacitors such as POSCAP, SP-CAP, or ceramic types and features fast transient response with no external compensation. The switching frequency is internally set at a nominal 650 kHz. The high-side and low-side switching MOSFETs are incorporated inside the TPS562209 package along with the gate-drive circuitry.

The low drain-to-source on resistance of the MOSFETs allows the TPS562209 to achieve high efficiencies and helps keep the junction temperature low at high output currents. The TPS562209 dc/dc synchronous converter is designed to provide up to a 2-A output from an input voltage source of 4.5 V to 17 V. The output voltage range is from 0.8 V to 6.5 V. Rated input voltage and output current ranges for the evaluation module are given in Table 1.

The TPS562209EVM-601 evaluation module (EVM) is a single, synchronous buck converter providing
1.05 V at 2 A from 4.5-V to 17-V input. This user’s guide describes the TPS562209EVM-601 performance.

Specifications

Manufacturer Texas Instruments
Category AC/DC and DC/DC Conversion
Sub-Category DC/DC SMPS - Single Output
Eval Board Part Number 296-37856-ND
Eval Board Supplier Texas Instruments
Eval Board Normally In Stock
Topology Step Down
Outputs and Type 1 Non-Isolated
Voltage Out: Factory Set 1.05 V
Current Out 2 A
Voltage In 4.5 ~ 17 V
Efficiency @ Conditions >80%, 5V in, 1.05V @ 0.1 ~ 1.75 A
>80%, 12V in, 1.05V @ 0.25 ~ 1.5 A
Voltage Out Range 0.76 ~ 7 V
Features Current Limit (Adj. or Fixed)
Over Voltage Protection
Pre-Biased Startup
Shutdown, Enable, Standby
Soft Start
Thermal Protection
Under Voltage Protection, Brown-Out
Switching Frequency 650 kHz
Standby Current [Typical] 3 µA
Quiescent Current [Typical] 650 µA
Component Count + Extras 13 + 11
Internal Switch Yes
Design Author Texas Instruments
Application / Target Market DVD/Blu-ray Players
LCD TV / Monitor
Servers
Set-Top Boxes
Standby Current [Maximum] 10 µA
Quiescent Current [Maximum] 900 µA
Main I.C. Base Part TPS562209
Date Created By Author 2014-01
Date Added To Library 2015-05

Eval Board

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