Advertisement
Quick Links
Description
Demonstration circuit DC1905A features the
a high efficiency, triple 10A step-down power µModule
regulator. The input voltage range is from 4.7V to 16V with
common input source, or 2.375V to 16V with an external bias
supply. The output voltage range is 0.8V to 1.8V for Channel 1
and Channel 2, 0.8V to 5.5V for Channel 3. Derating is
necessary for certain V
, V
IN
ditions. The DC1905A offers access to the TRACK/SS pins
allowing the user to program output tracking or soft-start
period. The board operates in continuous conduction mode
in heavy load conditions. For high efficiency at low load
BoarD photo
LTM
4633EY,
®
, frequency and thermal con-
OUT
DEMO MANUAL DC1905A
High Efficiency, Triple 10A
Step-Down µModule Regulator
currents, the MODE jumper (JP4) selects pulse-skipping
mode for noise sensitive applications or Burst-Mode
®
operation in less noise sensitive applications. Channel 1
and 2 can be connected in parallel for a single 20A output
solution with optional jumper resistors. The LTM4633 data
sheet must be read in conjunction with this demo manual
prior to working on or modifying demo circuit DC1905A.
Design files for this circuit board are available at
http://www.linear.com/demo/DC1905A
L, LT, LTC, LTM, Burst Mode, µModule, Linear Technology and the Linear logo are registered
trademarks of Linear Technology Corporation. All other trademarks are the property of their
respective owners.
LTM4633
®
dc1905af
1
Advertisement
Related Manuals for Linear Technology DC1905A
Summary of Contents for Linear Technology DC1905A
- Page 1 The board operates in continuous conduction mode L, LT, LTC, LTM, Burst Mode, µModule, Linear Technology and the Linear logo are registered in heavy load conditions. For high efficiency at low load trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners.
-
Page 2: Performance Summary
See Figure 7 OUT3 STEP Quick start proceDure Demonstration circuit DC1905A is an easy way to evalu- 5. (Optional) For optional load transient test, apply an ate the performance of the LTM4633EY. Please refer to adjustable pulse signal between IOSTEP_CLK and GND Figure 1 for proper measurement equipment setup and test points. - Page 3 DEMO MANUAL DC1905A Quick start proceDure – – – LOAD LOAD LOAD – – – dc1905a F01 – – Figure 1. Measurement Setup of DC1905A dc1905af...
- Page 4 DEMO MANUAL DC1905A Quick start proceDure DC1905A Efficiency (LTM4633) V = 1.0V DC1905A Efficiency (LTM4633) V = 1.2V = 5V = 5V = 8V = 8V = 12V = 12V = 16V = 16V LOAD CURRENT (A) LOAD CURRENT (A)
- Page 5 DEMO MANUAL DC1905A Quick start proceDure = 100mV/DIV = 5A/DIV OUT_STEP dc1905a F05 Figure 5. Measured Channel 1 Load Transient = 12V, V = 1.0V, I = 0A to 5A, di/dt = 5A/µs OUT1 STEP = 100mV/DIV = 5A/DIV OUT_STEP dc1905a F06 Figure 6.
- Page 6 DEMO MANUAL DC1905A Quick start proceDure = 200mV/DIV = 5A/DIV OUT_STEP dc1905a F07 Figure 7. Measured Channel 3 Load Transient = 12V, V = 3.3V, I = 0A to 5A OUT3 STEP Figure 8. Thermal Image of LTM4633 Figure 9. Thermal Image of LTM4633 = 12V, V = 1.0V, I...
-
Page 7: Parts List
DEMO MANUAL DC1905A parts List ITEM REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER Required Circuit Components LTM4633EY#PBF, BGA-15 × 15-144P LINEAR TECH., LTM4633EY#PBF CIN1 Cap., 150µF, 25V, Aluminum Electr., SUN ELECT., 25CE150AX CIN2, CIN3, CIN5 Cap., X5R, 22µF, 25V, 10%,1210 MURATA, GRM32ER61E226KE15L Cap., X5R, 4.7µF, 10V,10%, 0603... - Page 8 DEMO MANUAL DC1905A schematic Diagram dc1905af...
-
Page 9: Schematic Diagram
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. - Page 10 Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions: This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety measures typically found in finished commercial goods.
- Page 11 X-ON Electronics Largest Supplier of Electrical and Electronic Components Click to view similar products for category: Power Management IC Development Tools Click to view products by manufacturer: Analog Devices Other Similar products are found below : EVAL-ADM1168LQEBZ EVB-EP5348UI MIC23451-AAAYFL EV MIC5281YMME EV DA9063-EVAL ADP122-3.3-EVALZ ADP130- 0.8-EVALZ ADP130-1.2-EVALZ ADP130-1.5-EVALZ ADP130-1.8-EVALZ ADP1714-3.3-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-...
Need help?
Do you have a question about the DC1905A and is the answer not in the manual?
Questions and answers