Sync Buck for Global Systems for Mobile (GSM) (3.3V @ 6A)


Design files


This design implements three sync buck converters with remote sensing and built-in-test (BIT) functionality. Overall efficiency is greater than 90%.

Output voltage options PMP1908.1 PMP1908.2 PMP1908.3
Vin (Min) (V) 6.5 19 19
Vin (Max) (V) 6.5 30 30
Vout (Nom) (V) 1.4 6.5 3.3
Iout (Max) (A) 3.2 7.5 6
Output Power (W) 4.48 48.75 19.8
Isolated/Non-Isolated Non-Isolated Non-Isolated Non-Isolated
Input Type DC DC DC
Topology Buck- Synchronous Buck- Synchronous Buck- Synchronous

Design files & products

Design files

Download ready-to-use system files to speed your design process.

SLVR834.PDF (1507 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

SLVR832.PDF (214 K)

Detailed schematic diagram for design layout and components

SLVR833.PDF (24 K)

Complete listing of design components, reference designators, and manufacturers/part numbers


Includes TI products in the design and potential alternatives.

Buck controllers (external switch)

TPS40055Wide Input (8V-40V) up to 1MHz Frequency Synchronous Buck Controller, source/sink

Data sheet document-pdfAcrobat PDF open-in-new HTML
Buck controllers (external switch)

TPS400754.5-V to 28-V, synchronous buck controller with voltage feed forward

Data sheet document-pdfAcrobat PDF

LM290130-V quad differential comparator

Data sheet document-pdfAcrobat PDF open-in-new HTML
General-purpose op amps

TLV2371Single, 16-V, 3-MHz, RRIO operational amplifier

Data sheet document-pdfAcrobat PDF open-in-new HTML
Shunt voltage references

TL431Adjustable precision shunt regulator

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
Test report PMP1908 TEST RESULTS Jan. 06, 2011

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