Linear DC2230A-B Demo Manual
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Linear DC2230A-B Demo Manual

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Description
Demonstration circuit 2230A-B features the
1EY, a 40A high efficiency, switch mode step-down power
µModule
regulator with overtemperature and input/output
®
overvoltage protection. The input voltage range is from
4.7V to 15V. For input voltage range from 4.7V to 5.5V,
short PV
pin to V
pin with R8 = R21 = 0Ω and remove
CC
IN
R17. The output voltage range is 0.6V to 3.3V. Derating
is necessary for certain V
conditions. The board operates in continuous conduc-
tion mode in heavy load conditions. For high efficiency
at low load currents, the MODE_PLLIN jumper selects
pulse-skipping mode for noise sensitive applications or
Burst  Mode
operation in less noise sensitive applica-
®
BoarD photo
40A DC/DC µModule Regulator with
Overvoltage/Overtemperature Protection
LTM
®
, V
, frequency and thermal
IN
OUT
DEMO MANUAL DC2230A-B
tions. The MODE_PLLIN pin also allows the LTM4636
4636-
to synchronize to an external clock signal. DC2230A-B
has the option of choosing both internal and external
compensation circuit for LTM4636-1. Tying the PHASMD
pin to different voltage generates certain phase difference
between MODE_PLLIN and CLKOUT. The LTM4636-1 data
sheet must be read in conjunction with this demo manual
prior to working on or modifying demo circuit DC2230A-B.
Design files for this circuit board are available at
http://www.linear.com/demo/DC2230A-B
L, LT, LTC, LTM, Linear Technology, the Linear logo, Burst Mode and μModule are registered
trademarks of Linear Technology Corporation. All other trademarks are the property of their
respective owners.
LTM4636-1
dc2330abf
1

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Summary of Contents for Linear DC2230A-B

  • Page 1 MODE_PLLIN jumper selects L, LT, LTC, LTM, Linear Technology, the Linear logo, Burst Mode and μModule are registered pulse-skipping mode for noise sensitive applications or trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners.

  • Page 2: Performance Summary

    DEMO MANUAL DC2230A-B performance summary PARAMETER CONDITIONS/NOTES VALUE Input Voltage Range 4.7V to 15V Output Voltages 1.0V ± 1.3% Maximum Continuous Output Current Derating is Necessary for Certain Operating Conditions. See Data Sheet for Details. 40ADC Operating Frequency 350kHz Efficiency = 12V, V = 1.0V, I...
  • Page 3 DEMO MANUAL DC2230A-B Quick start proceDure – LOAD – – Figure 1. Measurement Setup of DC2230A-A – Figure 1. Proper Measurement Equipment Setup dc2330abf...
  • Page 4 DEMO MANUAL DC2230A-B Quick start proceDure OUTPUT CURRENT (A) dc2230ab F02 Figure 2. Measured Efficiency at V = 5V/12V, V = 1V, f = 350kHz, CCM, Q2 Not Included 50mV/DIV OUT_STEP 10A/DIV Figure 3. Measured Load Transient, V = 12V, V = 1.0V, I...

  • Page 5: Parts List

    DEMO MANUAL DC2230A-B parts List ITEM REFERENCE PART DESCRIPTION MANUFACTURER/PART # Required Circuit Components CIN1 CAP , ALUM ELECT, 150µF, 25V, CE SERIES SUN ELECT, 25CE150AX CIN4, CIN5, CIN6, CIN7, CIN8, CIN9 CAP , 22µF, X5R, 16V, 20%,1210 MURATA, GRM32ER61C226ME20 COUT1, COUT2, COUT3, COUT4, CAP , 100µF, X5R, 6.3V, 20%,1210...
  • Page 6 DEMO MANUAL DC2230A-B parts List Hardware E1 TO E20 TEST POINT, TURRET, 0.064" MTG. HOLE MILL-MAX, 2308-2-00-80-00-00-07-0 CONN, HEADER, 1 × 3, 2mm SULLINS, NRPN031PAEN-RC CONN, HEADER, 1 × 4, 2mm SULLINS, NRPN041PAEN-RC J1, J2 CONN, JACK, BANANA, NON-INSULATED, KEYSTONE, 575-4 0.218"...

  • Page 7: 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 8 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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