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DESCRIPTION
Demonstration circuit DC1084A-B features the LTM
the high efficiency, high density step-down μModule
regulator. The input voltage range is from 4.5V to 28V.
The output voltage is jumper programmable from 0.6V to
5V, refer to the step-down ratio curve in the LTM4602HV
data sheet. The rated load current is 6A, while derating is
necessary for certain V
IN
PERFORMANCE SUMMARY
PARAMETER
Input Voltage Range
Output Voltage V
OUT
Maximum Continuous Output Current
Default Operating Frequency
BOARD PHOTO
4602HV,
®
, V
and thermal conditions.
OUT
(T
= 25°C)
A
CONDITION
Jumper Selectable (Open for 0.6V)
Derating is Necessary for Certain V
Thermal Conditions
DEMO MANUAL DC1084A-B
28V, 6A Step-Down
µModule Regulator
The LTM4602HV data sheet must be read in conjunction
®
with this demo manual prior to working on or modifying
demo circuit DC1084A-B.
Design files for this circuit board are available at
http://www.linear.com/demo
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.
VALUE
4.5V to 28V
1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V
, V
and
6A DC
IN
OUT
800kHz
LTM4602HV
dc1084a-bf
1
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Related Manuals for Linear Technology DC1084A-B
Summary of Contents for Linear Technology DC1084A-B
- Page 1 5V, refer to the step-down ratio curve in the LTM4602HV http://www.linear.com/demo data sheet. The rated load current is 6A, while derating is L, LT, LTC, LTM, μModule, Linear Technology and the Linear logo are registered trademarks of necessary for certain V and thermal conditions.
-
Page 2: Quick Start Procedure
Figure 1. The optional 5V bias supply must be off anytime the supply to VIN is turned off. 3. Turn on the power at the input. The output voltage should be 1.5V ±2%. Figure 1. Test Setup of DC1084A-B (EXTVCC Bias Supply is Optional) dc1084a-bf... - Page 3 DEMO MANUAL DC1084A-B QUICK START PROCEDURE Figure 2. Measured Supply Efficiency with Different V and V = 12V, V = 1.5V 0A to 5A LOAD STEP FCB = 0V = 1 × 22μF CERAMIC (1206), 1 × 100μF CERAMIC (1812), C3 = 100pF Figure 3.
- Page 4 DEMO MANUAL DC1084A-B PARTS LIST ITEM REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER Required Circuit Components CAP , 150μF 20% 35V ALUM SANYO 35MV150WXV (Now SUNCON 35MV150WXV) C5, C2 CAP , 1206 10μF 20% 35V X5R TAIYO YUDEN GMK316 BJ106ML-T CAP , 1206 22μF 20% 6.3V X5R AVX 12066D266MAT2A CAP , 1812 100μF 20% 6.3V X5R...
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Page 5: 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 6 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.
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