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TPS55340EVM-017: 24V @ 800mA, 5 ~ 12V in, Boost

Summary

This user’s guide contains information for the TPS55340EVM-017 evaluation module (EVM) as well as the TPS55340 DC/DC converter. The document includes the performance specifications, schematic, and the bill of materials for the TPS55340EVM-017.

The TPS55340 DC/DC converter is a step-up boost converter. Rated input voltage and output current range for the evaluation module are given in Table 1. This EVM demonstrates the performance of the TPS55340 in an example application and accommodates evaluation of other boost applications supported by the TPS55340.

This design shows that a small printed-circuit-board area is possible when designing with the TPS55340 regulator. However, appropriate sizing of the inductor and diode for the desired application can further reduce the board area. The switching frequency is externally set at a nominal 600 kHz. The 40-V, 5-A, low-side MOSFET is incorporated inside the TPS55340 package along with the gate drive circuitry. The low drain-to-source on-resistance of the MOSFET achieves high efficiencies with the TPS55340. The compensation components are external to the integrated circuit (IC). The absolute maximum input voltage is 32 V for the EVM.

Specifications

Manufacturer Texas Instruments
Category AC/DC and DC/DC Conversion
Sub-Category DC/DC SMPS - Single Output
Eval Board Part Number 296-37062-ND
Eval Board Supplier Texas Instruments
Eval Board Normally In Stock
Topology Step Up
Outputs and Type 1 Non-Isolated
Voltage Out: Factory Set 24 V
Current Out 800 mA
800 mA (5 Vin) ~ 1.9 A (12 Vin)
Voltage In 5 ~ 12 V
Efficiency @ Conditions >93%, 15V in, 24 V @ 0.1 ~ 2.4 A
>92%, 12V in, 24V @ 0.1 ~ 2 A
>87%, 5V in, 24V @ 0.1 ~ 0.8 A
Voltage Out Range Vin ~ 38 V
Features Current Limit (Adj. or Fixed)
Shutdown, Enable, Standby
Soft Start
Synchronizable
Thermal Protection
Under Voltage Protection, Brown-Out
Switching Frequency 600 kHz
Standby Current [Typical] 2.7 µA
Quiescent Current [Typical] 500 µA
Component Count + Extras 17 + 12
Internal Switch Yes
Design Author Texas Instruments
Application / Target Market Auxiliary Power Supply
Industrial Power
Portable Devices
Tablets
Standby Current [Maximum] 10 µA
Quiescent Current [Maximum] - Not Given
Main I.C. Base Part TPS55340
Date Created By Author 2012-04
Date Added To Library 2015-01

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