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dc1041a-bf

DEMO MANUAL DC1041A-B

 DESCRIPTION

LTM4601HV 

5V

IN

 to 28V

IN

12A Step-Down 

µModule Regulator

Demonstration circuit DC1041A-B features the 
LTM

®

4601HVEV, a 12A high efficiency, high density 

switch mode step-down converter. The input voltage 
range is from 4.5V to 28V. The output voltage is jumper 
selectable for popular voltages from 0.6V to 5V. The PLLIN 
pin supports synchronizing the μModule

®

 regulator to 

an external clock. The TRACK/SS pin allows the user to 
program output ramp-up and ramp-down rates which 
may coincidentally or ratiometrically track with another 

L

, LT, LTC, LTM, μModule, Linear Technology and the Linear logo are registered trademarks of 

Linear Technology Corporation. All other trademarks are the property of their respective owners.

PERFORMANCE SUMMARY

BOARD PHOTO

supply’s output if desired. Output voltage margining of 
±5% from the nominal value is available via the margin 
control pins MARG0 and MARG1. The LTM4601HV data 
sheet must be read in conjunction with this demo manual 
prior to working on or modifying demo circuit DC1041A-B. 

Design files for this circuit board are available at 
http://www.linear.com/demo

(T

A

 = 25°C)

PARAMETER

CONDITION

VALUE

Input Voltage Range

4.5V to 28V

Output Voltage V

OUT

Jumper Selectable (Open for 0.6V)

1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V

Maximum Continuous Output Current

Derating is Necessary for Certain V

IN

, V

OUT

 and 

Thermal Conditions

12A DC

Default Operating Frequency

800kHz

External Synchronous Clock Frequency Range 

Refer to Data Sheet for Details

560kHz to 1000kHz

Efficiency V

IN

 = 12V, V

OUT

 = 1.5V, I

OUT

 = 12A

83%, See Figure 2

Содержание DC1041A-B

Страница 1: ...ration All other trademarks are the property of their respective owners PERFORMANCE SUMMARY BOARD PHOTO supply s output if desired Output voltage margining of 5 from the nominal value is available via the margin control pins MARG0 and MARG1 The LTM4601HV data sheet must be read in conjunction with this demo manual priortoworkingonormodifyingdemocircuitDC1041A B Design files for this circuit board ...

Страница 2: ...r at the input The output voltage should be 1 5V 1 4 Oncetheproperoutputvoltageisestablished adjustthe load within the operating range and observe the output voltage regulation ripple voltage efficiency and other parameters Output ripple should be measured at J4 with a BNC cable 5 For optional load transient test apply an adjustable pulse signal between IOSTEP E3 and GND pins Pulse amplitude sets ...

Страница 3: ...41A B QUICK START PROCEDURE Figure 2 Measured Supply Efficiency with Different VIN and VOUT VIN 12V VOUT 1 5V 0A TO 10A LOAD STEP COUT 1 22μF CERAMIC 2 100μF CERAMIC C5 47pF Figure 3 Measured Load Transient Response 0A to 10A Step ...

Страница 4: ...nology Corp LTM4601EV Additional Demo Board Circuit Components 1 0 CIN4 CIN5 Cap 1206 TBD 2 0 COUT3 Cap 1210 TBD 3 0 C3 C4 C5 C6 C7 Cap 0603 TBD 4 2 C1 C2 Cap X5R 1μF 10V 10 Taiyo Yuden LMK107BJ105KA 5 1 D1 Zener Diode 5 1V On Semi MMBZ5231B 6 1 Q1 MOSFET N Channel 30V Siliconix SUD50N03 10 7 0 R6 R9 R11 R12 R18 Res 0603 TBD 8 2 R17 R1 Res Chip 10k 0 1W 5 AAC CR16 103JM 9 1 R2 Res LRC 0 010Ω 0 25W...

Страница 5: ... 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 ...

Страница 6: ...CLUDING 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 g...

Страница 7: ... EVALZ ADP1716 2 5 EVALZ ADP1740 1 5 EVALZ ADP1752 1 5 EVALZ ADP1828LC EVALZ ADP1870 0 3 EVALZ ADP1871 0 6 EVALZ ADP1873 0 6 EVALZ ADP1874 0 3 EVALZ ADP1882 1 0 EVALZ ADP199CB EVALZ ADP2102 1 25 EVALZ ADP2102 1 875EVALZ ADP2102 1 8 EVALZ ADP2102 2 EVALZ ADP2102 3 EVALZ ADP2102 4 EVALZ ADP2106 1 8 EVALZ ADP2147CB 110EVALZ AS3606 DB BQ24010EVM BQ24075TEVM BQ24155EVM BQ24157EVM 697 BQ24160EVM 742 BQ2...

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