DC1194A Linear Technology, DC1194A Datasheet

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DC1194A

Manufacturer Part Number
DC1194A
Description
BOARD EVAL LTM8020
Manufacturer
Linear Technology
Series
µModuler
Datasheets

Specifications of DC1194A

Design Resources
LTM8020 Spice Model LTM8020 Gerber Files DC1194A Design File DC1194A Schematic
Main Purpose
DC/DC, Step Down
Outputs And Type
1, Non-Isolated
Power - Output
-
Voltage - Output
3.3V
Current - Output
200mA
Voltage - Input
4.5 ~ 36 V
Regulator Topology
Buck
Frequency - Switching
450kHz
Board Type
Fully Populated
Utilized Ic / Part
LTM8020
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
DESCRIPTION
Demonstration circuit DC1194A features the LTM
200mA DC/DC step-down μModule
is preset to deliver a 3.3V output at up to 200mA load
current from an input voltage of up to 36V. The output
voltage may be modified by simply changing one resis-
tor. The LTM8020 data sheet must be read in conjunction
PERFORMANCE SUMMARY
PARAMETER
Input Voltage Range
Output Voltage, V
Maximum Output Current
Efficiency
Light Load Power Loss
BOARD PHOTO
OUT
®
regulator. The board
CONDITIONS / NOTES
V
R1 = 30.1k
V
V
OUT
IN
IN
= 5V, V
= 12V, V
= 3.3V, Device 0perating
OUT
®
OUT
8020, a
= 3.3V, I
= 3.3V, I
OUT
OUT
= 100mA
with this demo manual prior to working on or modifying
demo circuit DC1194A.
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.
= 100μA
DEMO MANUAL DC1194A
36V, 200mA DC/DC
µModule Regulator
VALUE
4.5V to 36V
3.3V
200mA
85% (See Figure 2)
400μW
LTM8020
dc1194af
1

Related parts for DC1194A

DC1194A Summary of contents

Page 1

... DESCRIPTION Demonstration circuit DC1194A features the LTM 200mA DC/DC step-down μModule is preset to deliver a 3.3V output 200mA load current from an input voltage 36V. The output voltage may be modified by simply changing one resis- tor. The LTM8020 data sheet must be read in conjunction PERFORMANCE SUMMARY ...

Page 2

... DEMO MANUAL DC1194A DESCRIPTION 0 (mA) LOAD Figure 1. LTM8020EV Efficiency 3. 12V IN 24V IN 36V IN 100 1000 DC1194A F01 OUT 6.0 TO START 5.5 SHDN CONTROL 5.0 4.5 4.0 TO RUN 3.5 3 100 150 LOAD CURRENT (mA) DC1194A F03 Figure 3. LTM8020EV Typical Minimum V 1000 100 12V IN 24V ...

Page 3

... V – + – OPTIONAL DEMO MANUAL DC1194A 1. Connect the power supply (with power off), load, and meters as shown in Figure 4. 2. After all connections are made, turn on input power and verify that the output voltage is 3.3V. NOTE: If the output voltage is too low, temporarily ...

Page 4

... DEMO MANUAL DC1194A PARTS LIST ITEM QTY REFERENCE Required Circuit Components Optional Electrical Components Hardware 4 6 E1, E2, E3, E4, E5 PART DESCRIPTION CAP , 1210 2.2μF 10% 50V X7R RES, 0402 301k 1% 1/16W RES, 0402 100k 5% 1/16W IC, MODULE CAP , 0805 22μF 20% 6.3V X7R CAP , 10μF 20% 50V ALUM TURRET MANUFACTURER’ ...

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. DEMO MANUAL DC1194A dc1194af 5 ...

Page 6

... DEMO MANUAL DC1194A 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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