Texas Instruments TPS53124 Bedienungsanleitung

User’s Guide

TPS53124 Buck Controller Evaluation Module User's

Guide

Table of Contents

1 Description.............................................................................................................................................................................. 2

2 Electrical Performance...........................................................................................................................................................2

3 Schematic................................................................................................................................................................................3

4 Test Setup and Results.......................................................................................................................................................... 4

5 Configuration.......................................................................................................................................................................... 5

6 EVM Assembly Drawing and PCB Layout............................................................................................................................ 6

7 List of Materials.....................................................................................................................................................................10

8 Reference...............................................................................................................................................................................11

9 Revision History....................................................................................................................................................................11

Trademarks

D-CAP™ is a trademark of Texas Instruments.

All trademarks are the property of their respective owners.

www.ti.com Table of Contents

SLUU333A – JULY 2008 – REVISED JANUARY 2022

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TPS53124 Buck Controller Evaluation Module User's Guide 1

1 Description

The TPS53124 is a dual, adaptive on-time D-CAP™ mode synchronous buck controller. The TPS53124 enables

system designers to cost-effectively complete the suite of DTV POL regulators and digital STB regulators with a

low external component count. The main control loop for the TPS53124 uses the D-CAP mode that is optimized

for low-ESR output capacitors such as POSCAP, SP-CAP, or high polymer chemistry and provides fast transient

response with no external compensation. The TPS53124 provides conversion voltages (drain voltage for the

synchronous high-side MOSFET) from 4.5 V to 24 V and output voltages from 0.76 V to 5.5 V.

The HPA332 (TPS53124EVM) evaluation module is a high-efficiency, dual synchronous buck converter providing

1.05 V at 4 A and 1.8 V at 4 A from 5-V to 22-V input. This user's guide describes the HPA332 performance.

2 Electrical Performance

Table 2-1. Electrical Performance

SPECIFICATIONS TEST CONDITIONS MIN TYP MAX UNIT

Input voltage range (VIN) 5 12 22 V

CH1

Output voltage 1.05 V

Operating frequency VIN = 12 V, Iout1 = 1 A 280 kHz

Output current 4 A

Overcurrent limit VIN = 12 V 5 A

Output ripple voltage VIN = 12 V, Iout1 = 4 A 29 mVp-p

CH2

Output voltage 1.8 V

Operating frequency VIN = 12 V, Iout2 = 1 A 360 kHz

Output current 4 A

Overcurrent limit VIN = 12 V 5 A

Output ripple voltage VIN = 12 V, Iout2 = 4 A 33 mVp-p

Description www.ti.com

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3 Schematic

Figure 3-1. TPS53124 EVM Schematic Diagram

www.ti.com Schematic

SLUU333A – JULY 2008 – REVISED JANUARY 2022

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TPS53124 Buck Controller Evaluation Module User's Guide 3

4 Test Setup and Results

4.1 Test Setup

Connect the test equipment and HPA332 EVM board as shown in Figure 4-1.

HPA332

TPS53124EVM-001

-Electronic

Load2

Oscilloscope

CH2

Electronic

Load1

Oscilloscope

CH1

VO1

VO1_GND

VO2

VO2_GND

12V/6A

Power supply

VIN

_GND

VIN +-

DMM3

DMM2

DMM1

CN1

CN2 TP7

TP8

TP4

TP6

TP3

TP9

FAN

Figure 4-1. Equipment Setup for HPA332 EVM Board

4.2 Test Procedure

1. Make sure the switches SW1 (EN1) and SW2 (EN2) are in OFF position.

2. Apply appropriate VIN voltage to VIN and VIN_GND terminals.

3. Turn on SW1 (EN1), CH1-output will start up.

4. Turn on SW2 (EN2), CH2-output will start up.

Test Setup and Results www.ti.com

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4.3 Start-Up Performance

EN1 (5 V/div)

VO1 (0.5 V/div)

Figure 4-2. 1.05-V Start-Up Waveforms

EN2 (5 V/div)

VO2 (0.5 V/div)

Figure 4-3. 1.8-V Start-Up Waveform

4.4 Transient Response

VO1 (100 mV/div)

Iout1 (2A/div)

Figure 4-4. 1.05-V Load Transient Response

VO2 (100 mV/div)

Iout2 (2A/div)

Figure 4-5. 1.8-V Load Transient Response

5 Configuration

This EVM can be set at desired configurations. Refer to the following specific setting configuration sections.

5.1 Bootstrap Diode Selection

Bootstrap diodes are not populated on this EVM since TPS53124 has them built-in. External Schottky diodes

can be added to improve efficiency.

www.ti.com Test Setup and Results

SLUU333A – JULY 2008 – REVISED JANUARY 2022

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TPS53124 Buck Controller Evaluation Module User's Guide 5

6 EVM Assembly Drawing and PCB Layout

J 2 J1

C N 1

TP1

TP2

SW2

SW1

R 13

C11

R 12

Q4 1

Q1 1

+ +

TP8

C10

TP5

C15

R 11

R 8

C1 6

C18

C17

C14

C13

D 2

TP4

TP6

TP3

+ +

TP7

TP11

TP9

J 3

R 10

R 7

C21

C2 0

R 2

C1 2

C1 9

R 6

R 15

R 3

R 4

TP10

C N 2

Figure 6-1. Top Assembly

EVM Assembly Drawing and PCB Layout www.ti.com

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R 9 R 14

Figure 6-2. Bottom Assembly

Figure 6-3. Top Layer

www.ti.com EVM Assembly Drawing and PCB Layout

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TPS53124 Buck Controller Evaluation Module User's Guide 7

Figure 6-4. Inner Layer 1

Figure 6-5. Inner Layer 2

EVM Assembly Drawing and PCB Layout www.ti.com

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Figure 6-6. Bottom Layer

www.ti.com EVM Assembly Drawing and PCB Layout

SLUU333A – JULY 2008 – REVISED JANUARY 2022

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TPS53124 Buck Controller Evaluation Module User's Guide 9

7 List of Materials

Table 7-1. List of Materials

Ref Dsg QTY Description Size MFR Part Number

C1 0 Capacitor, Aluminum 0.26 × 0.26 inch Any Any

C8, C13 2 Capacitor, NPCAP, 330 μF, 4.0-V 15-mΩ , 20% 6.6 × 7.2 mm NIPPON

CHEMICON APXE4R0ARA331M

C15 1 Capacitor, Ceramic, 4.7 μF, 10-V, BJ, 20% 0805 TDK C2012JB1A475MN

C16 1 Capacitor, Ceramic, 1 μF, 16-V, BJ, 20% 0805 TDK C2012JB1C105M75MN

C2, C3, C4, C5 4 Capacitor, Ceramic, 10 μF, 25-V, BJ , 20% 1210 Taiyo Yuden TMK325BJ106MN

C6, C11 2 Capacitor, Ceramic, 0.1 μF, 50-V, BJ, 20% 0603 Std Std

C7,C14 0 not mount 6,6 × 7.2 mm Any Any

C9, C10,

C17,C18 0 not mount 1206 Any Any

C12 ,C19–C21 0 not mount 0603 Any Any

CN1, CN2 0 Adaptor, 3,5-mm probe clip ( or 131-5031-00) 0.2 Tektronix 131-4244-001

D1, D2 0 Diode, Schottky, 1-A, 30-V SMA Any Any

J1, J2, J3 3 Terminal Block, 2-pin, 15-A, 5,1mm 0.40 × 0.35 inch Phoenix

Contact MKDSN1.5/2-5.08

L1, L2 2 Inductor, 3.3 μH, 6.0 A, 29.7 mΩ 6,5 × 7.1 mm TDK SPM6530T-3R3M

Q1, Q3 2 MOSFET, N-ch, 30-V, 6.5-A, 38-mΩ SO8 ROHM RSS065N032

Q2, Q4 2 MOSFET, N-ch, 30-V, 10-A, 17.5-mΩ SO8 ROHM RSS100N03

R1 1 Resistor, Chip, 1.8 kΩ , 1/16W, 1% 0603 Std Std

R3 1 Resistor, Chip, 3.3 kΩ , 1/16W, 1% 0603 Std Std

R4, R6 2 Resistor, Chip, 10 kΩ , 1/16W, 1% 0603 Std Std

R5 1 Resistor, Chip, 12 kΩ , 1/16W, 1% 0603 Std Std

R8, R11 2 Resistor, Chip, 5.6 kΩ , 1/16W, 1% 0603 Std Std

R9, R14 2 Resistor, Chip, 0 Ω , 1/16W, 1% 0603 Std Std

R12, R13 2 Resistor, Chip, 10 Ω , 1/16W, 1% 0603 Std Std

R15 1 Resistor, Chip, 430 Ω , 1/16W, 1% 0603 Std Std

R2, R7, R10 0 not mount 0603 Any Any

SW1, SW2 2 Switch, ON-ON Mini Toggle 0.28 × 0.18 inch Nikkai G12AP

TP1, TP2, TP5,

TP11 4 Test Point, White, Thru Hole 0.125 × 0.125

inch Keystone 5012

TP10 1 Test Point, Orange, Thru Hole 0.125 × 0.125

inch Keystone 5013

TP3, TP4, TP6 3 Test Point, Black, Thru Hole 0.125 × 0.125

inch Keystone 5011

TP7, TP8 2 Test Point, Yellow, Thru Hole 0.125 × 0.125

inch Keystone 5014

TP9 1 Test Point, Red, Thru Hole 0.125 × 0.125

inch Keystone 5010

U1 1 IC, Dual Synchronous Step-Down Controller for

Low Voltage Power Rails QFN24 TI TPS53124RGE

List of Materials www.ti.com

10 TPS53124 Buck Controller Evaluation Module User's Guide SLUU333A – JULY 2008 – REVISED JANUARY 2022

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