DC1477A Linear Technology, DC1477A Datasheet

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DC1477A

Manufacturer Part Number
DC1477A
Description
BOARD EVAL LTM4609
Manufacturer
Linear Technology
Series
µModuler
Datasheets

Specifications of DC1477A

Main Purpose
DC/DC, Step Up or Down
Outputs And Type
1, Non-Isolated
Voltage - Output
30V
Current - Output
10A
Voltage - Input
10 ~ 36V
Regulator Topology
Buck-Boost
Frequency - Switching
300kHz
Board Type
Fully Populated
Utilized Ic / Part
LTM4609
Lead Free Status / RoHS Status
Not applicable / Not applicable
Power - Output
-
DESCRIPTION
Demonstration circuit DC1477A features the LTM
a high voltage, high efficiency, high density switch mode
buck-boost power module. The LTM4609EV regulates an
output voltage above, below or equal to the input voltage.
DC1477A accepts an input voltage from 10V to 36V with
a preset output voltage of 30V at up to 3A. Derating may
be necessary for certain V
An input π filter option is included on the DC1477A to
minimize the input ripple. The switching frequency may
be synchronized to an external clock from 200kHz to
PERFORMANCE SUMMARY
BOARD PHOTO
PARAMETER
Minimum Input Voltage
Output Voltage V
Maximum Continuous Output Current
Default Operating Frequency
Efficiency
OUT
IN
, V
OUT
and thermal conditions.
CONDITION
Derating is Necessary for certain V
Thermal Conditions
V
IN
= 20V, V
(T
®
A
4609EV,
OUT
= 25°C)
= 30V, I
DC/DC µModule
OUT
= 3A
400kHz to reduce undesirable frequency harmonics and/
or parallel multiple modules for even higher output cur-
rent. The LTM4609 data sheet must be read in conjunction
with this demo manual prior to working on or modifying
demo circuit DC1477A
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.
DEMO MANUAL DC1477A
36V
IN
, V
OUT
IN
and
, 34V
VALUE
10V to 36V
30V ±2%
3A DC at 10V
8A DC at 24V
10A DC at V
300kHz
96.7%, See Figure 3 for More Information
OUT
IN
IN
IN
> 30V
LTM4609EV:
®
Buck-Boost
Regulator
dc1477af
1

Related parts for DC1477A

DC1477A Summary of contents

Page 1

... Derating may be necessary for certain and thermal conditions. IN OUT An input π filter option is included on the DC1477A to minimize the input ripple. The switching frequency may be synchronized to an external clock from 200kHz to PERFORMANCE SUMMARY PARAMETER Minimum Input Voltage Output Voltage V ...

Page 2

... DEMO MANUAL DC1477A QUICK START PROCEDURE Demonstration circuit DC1477A is an easy way to evaluate the performance of the LTM4609EV. Please refer to Figure 1 for proper measurement equipment setup and follow the procedure below: 1. Place jumpers in the following positions for a typical 30V application: OUT ...

Page 3

... QUICK START PROCEDURE Figure 2. Proper Scope Probe Placement for Measuring Input or Output Ripple DEMO MANUAL DC1477A Figure 1. Test Setup of DC1477A dc1477af 3 ...

Page 4

... DEMO MANUAL DC1477A QUICK START PROCEDURE DC1477A/LTM4609 Efficiency at 10V DC1477A/LTM4609 Efficiency at 30V 4 Input DC1477A/LTM4609 Efficiency at 20V IN Input DC1477A/LTM4609 Efficiency at 36V IN Figure 3. Measured Efficiency at Different V Input IN Input IN IN dc1477af ...

Page 5

... Figure 4. Measured Load Transient Response (1.5A Step, 50% to 100 10V 30V OUT OUT W/O Input Filter: Short L2 and L3, Remove C IN2 V Peak-to-Peak Ripple = 2.78V IN Figure 5. Input Voltage Ripple Measured at C DEMO MANUAL DC1477A V = 36V 30V, CCM Mode IN OUT 1. Load Step = 2 × 10µF Ceramic + 2 × 100µF Alum C OUT V = 10V 30V ...

Page 6

... DEMO MANUAL DC1477A PARTS LIST ITEM QTY REFERENCE Required Circuit Components 1 1 CSS 2 1 CIN1 3 2 CO3, CO4 4 3 CIN2, CIN3, CIN4 5 2 CO5, CO6 RS1,RS2 Additional Demo Board Circuit Components 1 0 CIN5, Csnb1, Csnb2 (OPT C2, C4, C5 CFF (OPT CO1, CO2 (OPT) ...

Page 7

... NC F9 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 DC1477A GND A1 GND A2 ...

Page 8

... DEMO MANUAL DC1477A 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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