DC1238A Linear Technology, DC1238A Datasheet

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DC1238A

Manufacturer Part Number
DC1238A
Description
BOARD DEMO LTM8021
Manufacturer
Linear Technology
Series
µModuler
Datasheets

Specifications of DC1238A

Design Resources
DC1238 Schematic
Main Purpose
DC/DC, Step Down
Outputs And Type
1, Non-Isolated
Power - Output
-
Voltage - Output
5V
Current - Output
500mA
Voltage - Input
7.5 ~ 36 V
Regulator Topology
Buck
Frequency - Switching
1.1MHz
Board Type
Fully Populated
Utilized Ic / Part
LTM8021
Lead Free Status / Rohs Status
Not applicable / Not applicable
Description
Demonstration circuit 1238A features the LTM
36V 500mA step-down µModule
been preset to 5V by a single resistor within the LTM8021’s
output voltage range of 0.8V to 5V. An adjustable soft-start
period may be implemented with the addition of a capaci-
tor at C3. The input voltage range is from 7.5V to 36V for
the default operating conditions. The LTM8021 may need
more input voltage to start up than to run in steady state.
perForMAnce sUMMArY
PARAMETER
Input Voltage Range
Output Voltage
Maximum Continuous Output Current
Switching Frequency
BoArD photo
®
regulator. The output has
(T
®
A
8021, a
CONDITIONS
V
V
= 25°C)
OUT
IN
= 12V, I
= 5V
LOAD
The data sheet gives a complete description of the part,
operation and applications information. The LTM8021 data
sheet must be read in conjunction with this demo manual
prior to working on or modifying demo circuit DC1238A.
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.
= 500mA, R1 = 19.1k
DEMO MANUAL DC1238A
36V, 500mA Step-Down
µModule Regulator
LTM8021
VALUE
7.5V to 36V
5V ±3%
500mA
1.1MHz
dc1238af
1

Related parts for DC1238A

DC1238A Summary of contents

Page 1

... The LTM8021 data sheet must be read in conjunction with this demo manual prior to working on or modifying demo circuit DC1238A. 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 ...

Page 2

... DEMO MANUAL DC1238A qUick stArt proceDUre Demonstration circuit 1238 is an easy way to evaluate the performance of the LTM8021. Refer to figure 1 for proper measurement equipment setup and follow the procedure below: NOTE. When measuring the input or output voltage ripple, care must be taken to avoid a long ground lead on the oscilloscope probe ...

Page 3

... DEMO MANUAL DC1238A Figure 1. Proper Measurement Equipment Setup DC1238A F02 Figure 2. Measuring Input or Output Voltage Ripple dc1238af 3 ...

Page 4

... DEMO MANUAL DC1238A pArts list ITEM QTY REFERENCE PART DESCRIPTION Required Circuit Components CAP, X5R, 4.7µF, 6.3V, 10%, 0603 CAP, X7R, 1µF, 50V, 10%, 0805 RES, CHIP, 19.1k, 1/16W, 1% ,0402 RES, CHIP, 0, 1/16W, 1% ,0603 RES, CHIP, 51.1k 1/16W, 1% ,0603 IC, LTM8021EV Additional Demo Board Circuit Components ...

Page 5

... H5 1 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 DC1238A GND G1 GND F2 ...

Page 6

... DEMO MANUAL DC1238A 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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