LSM-1.5/10-D5 Murata Power Solutions Inc, LSM-1.5/10-D5 Datasheet

DC/DC Converter

LSM-1.5/10-D5

Manufacturer Part Number
LSM-1.5/10-D5
Description
DC/DC Converter
Manufacturer
Murata Power Solutions Inc
Datasheet

Specifications of LSM-1.5/10-D5

Dc / Dc Converter O/p Type
Fixed
No. Of Outputs
1
Input Voltage
4.5V To 5.5V
Power Rating
15W
Output Voltage
1.5V
Output Current
10A
Approval Bodies
EN, IEC, UL
Supply Voltage
5V
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Features
CONTROL
Step-down buck regulators with
industry-standard SMT footprint
5V input (4.5-5.5V range)
0.8/1/1.2/1.5/1.8/2/2.5/3.3V
Non-isolated, fixed-frequency,
synchronous-rectifier topology
Tape and reel SMT package
±1% setpoint accuracy
Efficiencies to 95% @ 10 Amps
Noise as low as 30mVp-p
Stable no-load operation
Remote on/off control
Sense pin and output voltage trim
Thermal shutdown
No derating to +71°C, natural convection
UL/IEC/EN60950 certified
EMC compliant
COMMON
ON/OFF
+INPUT
(1)
(3)
www.murata-ps.com/rohs
(2)
For full details go to
Typical Unit
 
OUT
V
CC
@10A
CONTROLLER
www.murata-ps.com
PWM
Single Output, Non-Isolated, 5V
DC converters that accept a 5V input (4.5V to 5.5V input range) and deliver
0.8V, 1V, 1.2V, 1.5V, 1.8V, 2V, 2.5V, or 3.3V outputs at 10 Amps. LSM D5
SMT's are designed to take on-board 5V power and convert it, with the
highest efficiency in the smallest space, to any lower voltage required by
today's current-hungry DSP's, ASIC's and CPLD's.
load power processing. They occupy a mere 0.7 square inches (4.5 cm
and are only 0.34 inches (8.64 mm) high. The SMT package is designed
for pick and place including lead free reflow soldering, and they typically
require no additional external components.
chronous, fixed-frequency (300kHz), buck topology that also delivers: high
efficiency (95% for 3.3V
load regulation (±0.1%/±0.25% max.), quick step response (100μsec),
stable no-load operation, and no output reverse conduction.
tinuous short-circuit and over-temperature protection, an output-voltage
trim function, a remote on/off control pin (pull low to disable), and a sense
pin. High efficiency enables the LSM D5's to deliver rated output currents
of 10 Amps at ambient temperatures to +71°C with no air flow (natural
convection).
of inefficient linear regulators impractical, take a look at one of DATEL's
easy-to-use, low-cost LSM SMT's (or equivalent LSN SIP's). All devices
are UL/IEC/EN60950 certified and EMC compliant. UL, CB, HALT and
EMC reports are available upon request.
Figure 1. Simplified Schematic
DATEL's LSM D5 Series for SMT (surface-mount) are non-isolated DC/
The LSM D5's miniature size makes them ideal for true point-of-use/
The LSM's best-in-class power density is achieved with a fully syn-
The fully functional LSM's feature output overcurrent detection, con-
If your low-voltage, high-current requirements have made the use
NOT RECOMMENDED
FOR NEW DESIGNS
CURRENT
SENSE
OUT
models), low noise (30mVp-p typ.), tight line/
REFERENCE &
ERROR AMP
IN
Technical enquiries email: sales@murata-ps.com, tel:
, 0.8-3.3V
LSM-10A D5 Models
OUT,
10A, DC/DC's in SMT Packages
MDC_LSM10A-D5.B01 Page 1 of 13
Typical topology is shown
+OUTPUT
+SENSE
COMMON
TRIM
V
(5)
OUT
2
)
(6)
(4)
(3)
+1 508 339 3000

Related parts for LSM-1.5/10-D5

LSM-1.5/10-D5 Summary of contents

Page 1

... DATEL's LSM D5 Series for SMT (surface-mount) are non-isolated DC/ DC converters that accept a 5V input (4.5V to 5.5V input range) and deliver 0.8V, 1V, 1.2V, 1.5V, 1.8V, 2V, 2.5V, or 3.3V outputs at 10 Amps. LSM D5 SMT's are designed to take on-board 5V power and convert it, with the highest efficiency in the smallest space, to any lower voltage required by today's current-hungry DSP's, ASIC's and CPLD's ...

Page 2

... Performance Specifications and Ordering Guide R/N (mVp- OUT OUT Model (Volts) (Amps) Typ. LSM-0.8/10-D5 0 LSM-1/10- LSM-1.2/10-D5 1 LSM-1.5/10-D5 1 LSM-1.8/10-D5 1 LSM-2/10- LSM-2.5/10-D5 2 LSM-3.3/10-D5 3 Typical +25°C under nominal line voltage and full-load conditions, unless otherwise A noted. All models are tested and specified with external 22μF tantalum input and output capacitors. These capacitors are necessary to accommodate our test equipment and may not be required to achieve specifi ...

Page 3

... Performance/Functional Specifications Table is not implied I/O Filtering and Noise Reduction All models in the LSM D5 Series are tested and specified with external 22μF tantalum input and output capacitors. These capacitors are necessary to accommodate our test equipment and may not be required to achieve desired performance in your application ...

Page 4

... See Typical Performance Curves. Remote Sense LSM D5 SMT Series DC/DC converters offer an output sense function on pin 6. The sense function enables point-of-use regulation for overcoming moderate IR drops in conductors and/or cabling. Since these are non-isolated devices whose inputs and outputs usually share the same ground plane, sense is provided only for the +Output ...

Page 5

... If the output current exceeds it maximum rating by typically 70% (17 Amps the output voltage drops to less than 98 original value, the LSM D5's internal overcurrent-detection circuitry immediately turns off the converter, which then goes into a "hiccup" mode. While hiccupping, the converter will continuously attempt to restart itself, go into overcurrent, and then shut down ...

Page 6

... Trim Equations Trim Equations Model 1.62 DOWN LSM-1/10-D5 1.296 2.49 DOWN LSM-1.2/10- 2.37 LSM-1.5/10-D5 T DOWN V LSM-1.8/10-D5 LSM-2/10- LSM-2.5/10- 7.5 DOWN LSM-3.3/10- Note: Resistor values are in kΩ. Accuracy of adjustment is subject to tolerances of resistors and factory-adjusted, initial output accuracy desired output voltage nominal output voltage. ...

Page 7

... Therefore it is difficult to give cap values which serve all applications. Some experimentation may be required. www.murata-ps.com LSM-10A D5 Models , 0.8-3.3V 10A, DC/DC's in SMT Packages IN OUT, Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 MDC_LSM10A-D5.B01 Page ...

Page 8

... LSM-1.2/10-D5 Output Current vs. Ambient Temperature (SMT mount, air flow direction from pin 2 to pin – LSM-1.5/10-D5 Output Current vs. Ambient Temperature (SMT mount, air flow direction from pin 2 to pin – LSM-10A D5 Models , 0.8-3.3V 10A, DC/DC's in SMT Packages IN OUT, Natural Convection ...

Page 9

... Typical Performance Curves for LSM-10A D5 SMT Series LSM-1.8/10-D5 & LSM-2/10-D5 Output Current vs. Ambient Temperature (SMT mount, air flow direction from pin 2 to pin Natural Convection 6 100 lfm – Ambient Temperature ( C) LSM-1.8/10-D5 Efficiency vs. Line Voltage and Load Current 4. 5. Load Current (Amps) LSM-2/10-D5 Efficiency vs ...

Page 10

... Typical Performance Curves for LSM-10A D5 SMT Series at V Start-Up from ON/OFF (I = 1V/10A 22μF) OUT IN OUT V IN 2V/div V OUT 1V/div 2msec/div Start-Up from 1V/10A 22μF) OUT IN OUT V IN 2V/div V OUT 1V/div 2msec/div Input Reflected Ripple Current (Input Filter = 220μF/12μH/33μF, I ...

Page 11

... Typical Performance Curves for LSM-10A D5 SMT Series at V Output Ripple and Noise (V = 3.3V/10A 22μ 20MHz) OUT IN OUT 20mV/div 1μsec/div Dynamic Load Response (V = 3.3V 10A Step OUT IN 100mV/div 100μsec/div Dynamic Load Response ( 10A Step OUT IN OUT 50mV/div 100μsec/div Single Output, Non-Isolated, 5V 20mV/div = 22μ ...

Page 12

... Tape & Reel Surface Mount Package DATEL's LSM series DC/DC converters are the only higher-current (10A) SMT DC/DC's that can be automatically "pick-and-placed" using standard vacuum-pickup equipment (nozzle size and style, vacuum pressure and placement speed may need to be optimized for automated pick and place) and subsequently refl ...

Page 13

... DATEL's new-generation LSM SMT DC/DC converters are shipped in quantities of 150 modules per tape and reel. 2.205 2.063 1.370 (52.4) (34.8) (56) DIMENSIONS IN INCHES (mm) 0.590 (14.97) 2.44 (62.0) Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 www ...

Related keywords