Linear Technology LT8570 Demo Manual Download

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dc2297afb

DEMO MANUAL DC2297A

Information furnished by Linear Technology Corporation is believed to be accurate and reliable.

However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-

tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.

SCHEMATIC DIAGRAM

C6*

16V

0805

0.1µF

16V

0603

OUT

L1*

DFLS130

5V TO 10V

6.19k

0603

10k

0805

11.3k

0805

130k

0603

56.2k

0603

100k

0805

SHDN

GND

SYNC

2.2nF

47pF

0.1µF

4.7µF

16V

0805

ASSEMBLY TYPE

C6 L1 V

OUT

DC2297A-A

LT8570EDD

4.7µF

33µF 12V/125mA

DC2297A-B

LT8570-1EDD

2.2µF

66µH

12V/60mA

* VERSION TABLE

U1*

SHDN

Summary of Contents for LT8570

Page 1: ...age lockout soft start frequency foldback and other features that are easily configured as Boost SEPIC or Inverting Converters The data sheet gives a complete description of the device operationandapplicationinformation Thedatasheetmust bereadinconjunctionwiththisdemomanualforDC2297A Design files for this circuit board are available at http www linear com demo DC2297A L LT LTC LTM µModule Linear T...

Page 2: ... and GND terminals See Figure 2 for proper scope probe technique 1 With power off connect the input power supply to VIN and GND 2 Turn on the power at the input NOTE Make sure that the input voltage does not exceed 10V 3 Check for the proper output voltage NOTE If there is no output temporarily disconnect the load to make sure that the load is not set too high 4 Oncetheproperoutputvoltagesareestab...

Page 3: ...tage INPUT V LOAD mA 240 80 60 40 20 220 180 140 100 200 160 120 0 7 5 9 DC2297A F04 10 6 4 8 3 Figure 4 DC2297A B Max Load Current vs Input Voltage INPUT V EFFICIENCY 90 85 75 65 55 80 70 60 50 80 40 120 DC2297A F05 140 60 20 100 0 Figure 5 DC2297A A Efficiency at 5VIN INPUT V EFFICIENCY 90 85 75 65 55 80 70 60 50 30 10 50 DC2297A F06 60 20 40 0 Figure 6 DC2297A B Efficiency at 5VIN ...

Page 4: ... R4 RES 100k 1 8W 1 0805 VISHAY CRCW0805100KFKEA Hardware For Demo Board Only 1 6 E1 E6 TEST POINT TURRET 0 094 MTG HOLE MILL MAX 2501 2 00 80 00 00 07 0 DC2297A B Required Circuit Components for Boost Regulator 1 1 C1 CAP CER 4 7µF X7R 16V 10 0805 MURATA GRM21BR71C475KA73L 2 1 C2 CAP CER 0 1µF X7R 16V 10 0402 MURATA GRM155R71C104KA88D 3 1 C3 CAP CER 2 2nF X7R 16V 10 0402 AVX 0402YC222KAT2A 4 1 C4...

Page 5: ...rein will not infringe on existing patent rights SCHEMATIC DIAGRAM C6 16V 0805 C5 0 1µF 16V 0603 VOUT L1 D1 DFLS130 VIN 5V TO 10V VIN SW 3 4 R6 6 19k 0603 R3 10k 0805 R2 11 3k 0805 R7 130k 0603 R5 56 2k 0603 R4 100k 0805 SHDN SHDN GND GND E1 E2 E3 E6 E4 E5 GND FB VC 1 5 2 SYNC SYNC SYNC RT SS 9 8 6 7 C3 2 2nF C4 47pF C2 0 1µF C1 4 7µF 16V 0805 ASSEMBLY TYPE U1 C6 L1 VOUT DC2297A A LT8570EDD 4 7µF ...

Page 6: ...NCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE EXCEPT TO THE EXTENT OF THIS INDEMNITY NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES The user assumes all responsibility and liability for proper and safe handling of the goods Further the user releases LTC from all claims arising from the handling or use of the ...

Page 7: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Analog Devices Inc DC2297A A DC2297A B ...

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