SNVU738 March   2022 LM5157 , LM5157-Q1 , LM51571-Q1

 

  1.   Trademarks
  2. 1Features and Electrical Performance
    1. 1.1 Electrical Parameters
    2. 1.2 EVM Power Derating Curve
    3. 1.3 Terminals and Signal Test Points
  3. 2Application Schematic
  4. 3EVM Picture
  5. 4Test Setup and Procedure
    1. 4.1 Bench Setup
    2. 4.2 Test Equipment
    3. 4.3 Precautions
  6. 5Test Data
    1. 5.1 Efficiency
    2. 5.2 Output Regulation
    3. 5.3 Thermal Performance
    4. 5.4 Typical Power Up
    5. 5.5 Output Ripple Voltage
    6. 5.6 Step Load Response
    7. 5.7 Bode Plots
  7. 6Schematics
  8. 7Bill of Materials
  9. 8Board Layout

7 Bill of Materials

Table 7-1 LM5157EVM-SEPIC Bill of Materials
Designator Quantity Description PartNumber Manufacturer
PCB 1 Printed Circuit Board BMC078 Any
C2, C10 2 CAP, CERM, 1000 pF, 50 V, +/- 10%, X7R, 0603 C0603X102K5RACTU Kemet

C3, C11, C21

3

CAP, CERM, 0.01 uF, 50 V, +/- 10%, X7R, 0603

C0603X103K5RACTU

Kemet

C4, C18

2

CAP, CERM, 0.1 uF, 50 V, +/- 10%, X7R, 0603

C1608X7R1H104K080AA

TDK

C5, C6, C7, C12, C13, C14, C15, C16

8

CAP, CERM, 10 uF, 50 V, +/- 10%, X7R, 1210

GRM32ER71H106KA12L

MuRata

C8

1

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

CGA5L1X7R1H106K160AC

TDK

C17

1

CAP, CERM, 1 uF, 50 V, +/- 10%, X7R, AEC-Q200 Grade 1, 0805

CGA4J3X7R1H105K125AB

TDK

C20

1

CAP, CERM, 1 µF, 16 V,+/- 10%, X7R, AEC-Q200 Grade 1, 0603

CGA3E1X7R1C105K080AC

TDK

C23

1

CAP, CERM, 100 pF, 50 V, +/- 5%, C0G/NP0, 0603

C0603C101J5GACTU

Kemet

C24

1

CAP, CERM, 0.047 uF, 50 V, +/- 10%, X5R, 0603

C1608X5R1H473K080AA

TDK

C25

1

CAP, CERM, 0.22 uF, 25 V, +/- 10%, X7R, AEC-Q200 Grade 1, 0603

GCM188R71E224KA55D

MuRata

C26

1

CAP, CERM, 220 pF, 50 V, +/- 5%, C0G/NP0, 0603

C0603C221J5GACTU

Kemet

D1

1

Diode, Schottky, 60 V, 10 A, AEC-Q101, CFP15

PMEG060V100EPDZ

Nexperia

D2, D3

2

Diode, Schottky, 60 V, 1 A, SOD-123F

PMEG6010CEH,115

Nexperia

H1, H2, H3, H4

4

Machine Screw, Round, #4-40 x 1/4, Nylon, Philips panhead

NY PMS 440 0025 PH

B&F Fastener Supply

H5, H6, H7, H8

4

Standoff, Hex, 0.5"L #4-40 Nylon

1902C

Keystone

J1, J2, J3, J5

4

Standard Banana Jack, Uninsulated, 8.9mm

575-8

Keystone

J4

1

TEST POINT SLOTTED .118", TH

1040

Keystone

J6, J7

2

Header, 2.54 mm, 3x1, Gold, TH

61300311121

Wurth Elektronik

J8, J9

2

Header, 2.54 mm, 2x1, Gold, TH

61300211121

Wurth Elektronik

J10

1

Header, 100mil, 4x2, Gold, TH

TSW-104-07-G-D

Samtec

J11

1

Header, 100mil, 7x1, Gold, TH

TSW-107-07-G-S

Samtec

L1

1

Coupled inductor, 4.7 uH, 10.3 A, 0.036 ohm, TH

MSD1260-472ML

Coilcraft

LBL1

1

Thermal Transfer Printable Labels, 0.650" W x 0.200" H - 10,000 per roll

THT-14-423-10

Brady

R2

1

RES, 10.0, 1%, 0.1 W, 0603

RC0603FR-0710RL

Yageo

R3, R10

2

RES, 0, 5%, 0.1 W, 0603

RC0603JR-070RL

Yageo

R4

1

RES, 4.99, 1%, 0.1 W, 0603

RC0603FR-074R99L

Yageo

R5

1

RES, 34.8 k, 1%, 0.1 W, 0603

RC0603FR-0734K8L

Yageo

R6

1

RES, 51.1 k, 1%, 0.1 W, 0603

RC0603FR-0751K1L

Yageo

R7

1

RES, 24.9 k, 1%, 0.1 W, 0603

RC0603FR-0724K9L

Yageo

R8

1

RES, 22.6 k, 1%, 0.1 W, 0603

RC0603FR-0722K6L

Yageo

R9

1

RES, 4.64 k, 1%, 0.1 W, 0603

RC0603FR-074K64L

Yageo

R11

1

RES, 37.4 k, 1%, 0.1 W, 0603

RC0603FR-0737K4L

Yageo

R12

1

RES, 62.0 k, 1%, 0.1 W, 0603

RC0603FR-0762KL

Yageo

R13

1

RES, 100 k, 1%, 0.1 W, 0603

RC0603FR-07100KL

Yageo

R14

1

RES, 9.53 k, 1%, 0.1 W, 0603

RC0603FR-079K53L

Yageo

R15

1

RES, 2.00 k, 0.01%, 0.15 W, 0603

PLTU0603U2001LST5

Vishay-Dale

SH-JP1, SH-JP2

2

Single Operation 2.54mm Pitch Open Top Jumper Socket

M7582-05

Harwin

TP1, TP2, TP8

3

Test Point, Miniature, Red, TH

5000

Keystone

TP3, TP4, TP9

3

Test Point, Miniature, Black, TH

5001

Keystone

TP6

1

Test Point, Miniature, SMT

5015

Keystone

U1

1

2.2MHz Wide VIN Boost/Sepic/Flyback Converter with Dual Random Spread Spectrum, RTE0016K (WQFN-16)

LM5157QRTERQ1

Texas Instruments

C1

0

CAP, CERM, 680 pF, 50 V, +/- 5%, C0G/NP0, 0603

C0603C681J5GACTU

Kemet

C9

0

CAP, Polymer Hybrid, 100 uF, 50 V,+/- 20%, 0.028 ohm, AEC-Q200 Grade 1, D10xL10.2mm SMD

EEH-ZC1H101P

Panasonic

C19

0

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

CGA5L1X7R1H106K160AC

TDK

C22

0

CAP, CERM, 0.068 uF, 50 V, +/- 10%, X7R, AEC-Q200 Grade 1, 0603

CGA3E2X7R1H683K080AA

TDK

FID1, FID2, FID3, FID4, FID5, FID6

0

Fiducial mark. There is nothing to buy or mount.

N/A

N/A

R1

0

RES, 10.0, 1%, 0.75 W, AEC-Q200 Grade 0, 1210

CRCW121010R0FKEAHP

Vishay-Dale