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1 TPS53114EVM-541 Electrical and Performance Specifications...................................................... 2
2 Test Point Description...................................................................................................... 4
3 TPS53114EVM-541 Bill of Materials.................................................................................... 12
1 Introduction
1.1 Description
TPS53114EVM-541 evaluation module is an example of a high-efficiency, single, synchronous buck
converter providing 1.20 V at 4 A from 5-V to 22-V input using the TPS53114 single-channel D-CAP2™
mode controller. The TPS53114 provides the user the ability to evaluate the performance of the
TPS53114 in a typical application including test points for simple, noninvasive monitoring of critical signals
within the design. This user’s guide contains a schematic, board layout, and bill of materials along with
typical performance characteristics and test methodology
1.2 Applications
• Low-voltage microcontroller core or I/O supply
• Low-voltage DPS core supply
• FPGA core supply
• Low-cost, low-voltage, point-of-load converter
1.3 Features
• Wide 5-V to 22-V input voltage range
• Fixed 1.20-V output voltage
• 4-A steady-state current
• 350-kHz or 700-kHz switching frequency (350-kHz optimized power stage)
• Enable and frequency select switches
• Test points for noninvasive measurement of switching waveforms, and input and output voltages.
2 TPS53114EVM-541 Electrical Performance Specifications
Table 1. TPS53114EVM-541 Electrical and Performance Specifications
Parameter Notes and Conditions Min Typ Max Unit
Input Characteristics
V
IN
Input Voltage 5 12 22 V
I
IN
Input Current V
IN
= 12, I
OU
T = 4 A – 0.43 0.45 A
No Load Input Current V
IN
= 12, I
OUT
= 0 A – 19 22 mA
V
IN_UVLO
Input UVLO I
OUT
= 4 3.8 4.2 4.5 V
Output Characteristics
V
OUT1
Output Voltage 1 V
IN
= 12, I
OUT
= 2 A 1.17 1.20 1.23 V
Line Regulation V
IN
= 5 V to 22 V – – 1%
Load Regulation I
OUT
= 0 A to 4 A – – 1%
V
OUT_ripple
Output Voltage Ripple V
IN
= 12 V, I
OUT
= 4 A – – 30 mVpp
I
OUT1
Output Current 1 V
IN
= 5 V to 22 V 0 4 A
Systems Characteristics
F
SW
Switching Frequency SW2 = 350 kHz 300 350 400 kHz
ηpk Peak Efficiency V
IN
=12 V, SW2 = 350 kHz – 86% –
η Full Load Efficiency V
IN
=12 V, I
OUT
= 4 A, SW2 = 350 kHz – 85% –
D-CAP2 is a trademark of Texas Instruments.
2
TPS53114EVM-541 SLVU373A–March 2010–Revised May 2012
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