Texas Instruments TPS7B4255EVM-062 User Manual Download Page 13

Table 5-1. Bill of Materials (continued)

Designator

Quantity

Value

Description

PackageReference PartNumber

Manufacturer

Alternate 
PartNumber

Alternate 
Manufacturer

R8

1

48.7k

RES, 48.7 k, 1%, 0.1 W, 0603

0603

RC0603FR-0748K7
L

Yageo

R15

1

487

RES, 487, 1%, 0.1 W, AEC-Q200 Grade 
0, 0603

0603

CRCW0603487RFK
EA

Vishay-Dale

R16

1

442

RES, 442, 1%, 0.1 W, AEC-Q200 Grade 
0, 0603

0603

CRCW0603442RFK
EA

Vishay-Dale

R21

1

49.9

RES Thick Film, 49.9Ω, 1%, 0.75W, 
100ppm/°C, 1206

1206

CRCW120649R9FK
EAHP

Vishay Dale

TP1, TP2, TP3

3

Test Point, Compact, SMT

Testpoint_Keystone
_Compact

5016

Keystone, Keystone 
Electronics

U1

1

TPS7B4255QDYBRQ1

SOT5

TPS7B4255QDYBR
Q1

Texas Instruments

U2

1

150-mA, wide VIN, low IQ, low-dropout 
regulator, DRB0008F (VSON-8)

DRB0008F

TPS7B8401QWDR
BRQ1

Texas Instruments

Texas Instruments

U3

1

5V, 7A/5A Low Side GaN Driver 
With 60MHz/1ns Speed, YFF0006AEAE 
(DSBGA-6)

YFF0006AEAE

LMG1020YFFR

Texas Instruments

LMG1020YFFT

Texas Instruments

C1, C15

0

4.7µF

Cap Ceramic 4.7uF 50V X7R 10% Pad 
SMD 0805 +125°C Automotive T/R

0805

CGA4J1X7R1H475
K125AC

TDK Corporation

C2, C3, C6

0

1uF

CAP, CERM, 1 uF, 100 V, +/- 10%, X7R, 
1206

1206

C3216X7R2A105K1
60AA

TDK

C5

0

1uF

CAP, CERM, 1 µF, 100 V,+/- 10%, X7R, 
AEC-Q200 Grade 1, 0805

0805

08051C105K4Z2A

AVX

C7

0

1uF

CAP, CERM, 1 uF, 50 V, +/- 10%, X7R, 
0805

0805

C2012X7R1H105K0
85AC

TDK

C9

0

1uF

CAP, CERM, 1 uF, 50 V, +/- 10%, X7R, 
AEC-Q200 Grade 1, 1206

1206

CGA5L3X7R1H105
K160AB

TDK

C10

0

0.1uF

CAP, CERM, 0.1 uF, 100 V, +/- 10%, X7R, 
0805

0805

C2012X7R2A104K1
25AA

TDK

C14

0

1pF

CAP, CERM, 1 pF, 100 V, +/- 5%, C0G/
NP0, 0805

0805

GQM2195C2A1R0
CB01D

MuRata

C16

0

0.015uF

CAP, CERM, 0.015 uF, 50 V, +/- 10%, 
X7R, 0402

0402

GRM155R71H153K
A12D

MuRata

C20, C21

0

1000pF

CAP, CERM, 1000 pF, 100 V, +/- 5%, 
X7R, 0603

0603

06031C102JAT2A

AVX

FID5, FID6, FID7

0

Fiducial mark. There is nothing to buy or 
mount.

N/A

N/A

N/A

J13, J15, J16

0

Header, 100mil, 2x1, Gold, TH

Sullins 100mil, 1x2, 
230 mil above 
insulator

PBC02SAAN

Sullins Connector 
Solutions

J17

0

Header, 100mil, 2x2, Gold, TH

2x2 Header

TSW-102-07-G-D

Samtec

J22, J26

0

SMA Straight Jack, Gold, 50 Ohm, TH

SMA Straight Jack, 
TH

901-144-8RFX

Amphenol RF

www.ti.com

Bill of Materials

SLVUCA5 – JUNE 2022

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TPS7B4255EVM-062 Evaluation Module

13

Copyright © 2022 Texas Instruments Incorporated

Summary of Contents for TPS7B4255EVM-062

Page 1: ...4255 Q1 low dropout linear regulator LDO Included in this user s guide are setup and operating instructions thermal and layout guidelines a printed circuit board PCB layout a schematic diagram and a b...

Page 2: ...3 3 TPS7B4255EVM 062 Load Transient Results 50 A to 70 mA Load Step 9 Figure 3 4 TPS7B4255EVM 062 Load Transient Results 70 mA to 50 A Load Step 9 Figure 4 1 Top Assembly Layer and Silkscreen 10 Figu...

Page 3: ...hat are connected to the main power supply The following warnings are noted for the safety of anyone using or working close to the TPS7B4255EVM 062 Observe all safety precautions WARNING Failure to ad...

Page 4: ...5QDYBRQ1 U1 100V 1uF C2 DNP 100V 1 F C5 DNP 50V 1uF C9 DNP VO 1 FB NC 2 GND 4 GND 5 GND 6 GND 3 VI 8 EN 7 PAD 9 TPS7B8401QWDRBRQ1 U2 VIN TP2 GND 1 2 3 4 5 6 J14 8V 17 8k R6 30 0k R7 48 7k R8 5V 3 3V G...

Page 5: ...e connection and the GND terminal is the negative that is ground connection 3 1 3 EN EN is a 3 pin header used to enable or disable the TPS7B84 Q1 which in turn enables the TPS7B4255 Q1 The center pin...

Page 6: ...n example as illustrated by the white boxes in Figure 3 2 The prepopulated capacitors are sized to ensure the minimum capacitance requirements are maintained under all normal operating conditions Opti...

Page 7: ...board layout is designed such that the Iin current probe slot does not detect any current that goes to the TPS7B84 Q1 circuit or its peripherals during start up or during any other operational mode T...

Page 8: ...per in the current path can reduce this ringing 10 AWG wire can be used as needed If ringing persists install damping networks by adding a series resistor and capacitor in parallel with VIN Locations...

Page 9: ...rated in Figure 3 3 and Figure 3 4 the TPS7B4255 Q1 transient response is very fast and the output voltage recovers in well under 1 ms after the initial load transient Use a pulse duration limit of 1...

Page 10: ...most at risk of raising the junction temperature during normal operation The LDO may become hot to the touch during normal operation see the thermal impedance discussion in the TPS7B4255 Q1 data sheet...

Page 11: ...rnal Layer 4 Figure 4 7 Bottom Layer Routing Figure 4 8 Bottom Assembly Layer and Silkscreen www ti com Board Layout SLVUCA5 JUNE 2022 Submit Document Feedback TPS7B4255EVM 062 Evaluation Module 11 Co...

Page 12: ...J21 3 SMA Straight Jack Gold 50 Ohm TH SMA Straight Jack TH 901 144 8RFX Amphenol RF J3 J4 J20 3 Standard Banana Jack insulated 10A red 571 0500 571 0500 DEM Manufacturing J5 J11 2 Header 100mil 2x1...

Page 13: ...omotive T R 0805 CGA4J1X7R1H475 K125AC TDK Corporation C2 C3 C6 0 1uF CAP CERM 1 uF 100 V 10 X7R 1206 1206 C3216X7R2A105K1 60AA TDK C5 0 1uF CAP CERM 1 F 100 V 10 X7R AEC Q200 Grade 1 0805 0805 08051C...

Page 14: ...5 0805 RL1220S 1R0 F Susumu Co Ltd R5 R17 0 1 00k RES 1 00 k 1 0 125 W AEC Q200 Grade 0 0805 0805 ERJ 6ENF1001V Panasonic R9 R10 R11 R12 R13 0 154 RES 154 1 0 5 W 1210 1210 RC1210FR 07154R L Yageo R14...

Page 15: ...ther than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control tec...

Page 16: ...These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not in...

Page 17: ...instructions set forth by Radio Law of Japan which includes but is not limited to the instructions below with respect to EVMs which for the avoidance of doubt are stated strictly for convenience and s...

Page 18: ...any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electr...

Page 19: ...R DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthe...

Page 20: ...change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reproduction and display of thes...

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