LSN2-T/30-D12G-C Murata Power Solutions Inc, LSN2-T/30-D12G-C Datasheet

DC/DC Converters & Regulators 12Vin 0.8-5Vout 30A 150W Power Good Out

LSN2-T/30-D12G-C

Manufacturer Part Number
LSN2-T/30-D12G-C
Description
DC/DC Converters & Regulators 12Vin 0.8-5Vout 30A 150W Power Good Out
Manufacturer
Murata Power Solutions Inc
Series
LSN2r
Datasheet

Specifications of LSN2-T/30-D12G-C

Output Power
150 W
Input Voltage Range
6 V to 14 V
Input Voltage (nominal)
12 V
Number Of Outputs
1
Output Voltage (channel 1)
0.8 V to 5 V
Output Current (channel 1)
30 A
Package / Case Size
SIP
Output Type
Low Voltage Selectable
Output Voltage
0.8 V to 5 V
Product
Non-Isolated / POL
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
LSN2-T/30-D12G-C
FEATURES
www.murata-ps.com
Standard (DOSA compatible) SIP package
User-selectable outputs: 0.8 to 5Vdc
30 Amps maximum output current
Meets RoHS-6 standards
Selectable phased start-up sequencing,
tracking and pre-bias operation
Wide range input voltages 6 to 14Vdc
To 150W with overtemperature shutdown
Very high effi ciency up to 94%
Fast settling, high di/dt I
Meets UL 60950-1, CAN/CSA-C22.2 60950-
1, IEC 60950-1, EN60950-1 safety approvals,
2nd edition
Extensive self-protection with short circuit
“hiccup” shutdown
Output overvoltage/overcurrent protection
Input under and overvoltage shutdown
www.murata-ps.com/rohs
For full details go to
 
OUT
slew rate
Typical unit
Typical topology is shown.
Figure 1. LSN2 -T/30-D12 Series Simplifi ed Schematic
www.murata-ps.com
DESCRIPTION
These miniature point-of-load (POL) switching
DC/DCs are an ideal regulation and supply ele-
ment for mixed voltage systems. The converter
is fully compatible with the Distributed-power
Open Standards Alliance specifi cation
(www.dosapower.com). LSN2-T/30-D12 can
power CPU’s, programmable logic and mixed
voltage systems with little heat and low noise.
A typical application uses a master isolated
12V DC supply and the LSN2-T/30-D12 con-
verter for local 1.8V and 3.3V DC supplies.
supply, leaving lower cost POL regulation
right at the load. Unlike linear regulators, the
LSN2-T/30-D12 can deliver very high power
(up to 150W) in a tiny area with no heat sink-
ing and no external components needed. The
converter features quick transient response
(to 25μsec) and very fast current slew rates
(to 20A/μsec).
All system isolation resides in the central
Contents
Description, Photograph, Connection Diagram
Ordering Guide, Model Numbering, Soldering Guidelines
Mechanical Specs, Input/Output Pinout
Detailed Electrical Specifi cations
Technical Notes
Performance Data
25 Jun 2010 MDC_LSN2-T/30-D12
LSN2-T/30-D12 Series
DOSA-SIP, 30A POL DC/DC Converters
using advanced surface mount (SMT)
assembly and test techniques. The extraor-
dinary performance is achieved with a fully
synchronous fi xed-frequency buck topology
delivering high effi ciency, tight line/load
regulation, stable no-load operation and no
output reverse conduction.
external programming resistor or DC volt-
age into the trim pin, means OEM’s can
stock one model for multiple applications.
Also included are protection for out-of-
limit voltages, currents and temperature.
Other functions: a remote On/Off control,
optional Power Good output, a phased
start-up sequence and tracking system,
and a load Sense input.
➀ Only one phase of two is shown.
LSN2-T/30-D12 is an open-frame SIP
Output voltage, selected with an
email: sales@murata-ps.com
Page
Series.B20Δ
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Related parts for LSN2-T/30-D12G-C

LSN2-T/30-D12G-C Summary of contents

Page 1

... Ordering Guide, Model Numbering, Soldering Guidelines Mechanical Specs, Input/Output Pinout Detailed Electrical Specifi cations Technical Notes Performance Data ➀ Figure 1. LSN2 -T/30-D12 Series Simplifi ed Schematic www.murata-ps.com LSN2-T/30-D12 Series DOSA-SIP, 30A POL DC/DC Converters LSN2-T/30-D12 is an open-frame SIP using advanced surface mount (SMT) assembly and test techniques ...

Page 2

... Regulation specifi cations describe the output-voltage deviation as the line voltage or load is varied from its nominal/midpoint value to either extreme. ➃ Nominal line voltage, no-load/full-load conditions. ➄ LSN2-T/30-D12 effi ciencies are shown at 5V ➅ Input range is 6-14V if V > 3.63V and may be OUT ➆ ...

Page 3

... DIMENSIONS ARE IN INCHES, [mm] TOLERANCES: 2 PLACE ±.02 ANGLES: ±1° 3 PLACE ±.010 COMPONENTS SHOWN ARE FOR REFERENCE ONLY MATERIAL: PINS: COPPER ALLOY FINISH: (ALL PINS) TIN OVER NICKEL email: sales@murata-ps.com 25 Jun 2010 MDC_LSN2-T/30-D12 Series.B20Δ 4.3 0.17 1.5 0.06 TYP Page ...

Page 4

... Meets UL/cUL 60950-1, CSA-C22.2 No. 60950-1, IEC/EN 60950-1, 2nd edition ABSOLUTE MAXIMUM RATINGS +15 Volts 0V min max. IN None. Install external fuse. Current-limited. Devices can withstand (7) sustained short circuit without damage. –55 to +125°C See soldering guidelines email: sales@murata-ps.com 25 Jun 2010 MDC_LSN2-T/30-D12 Series.B20Δ (12) Page ...

Page 5

... OUT I/O Filtering and Noise Reduction All models in the LSN2-T/30-D12 Series are tested and specifi ed with external 0.01μF, 0.1μF, and 10μF (all paralleled) ceramic/tantalum output capaci- tors and a 22μF tantalum input capacitor. These capacitors are necessary to accommodate our test equipment and may not be required to achieve desired performance in your application. The LSN2-T/30-D12’ ...

Page 6

... See Typical Performance Curves. Remote Sense LSN2-T/30-D12 Series offer an output sense function. The sense function enables point-of-use regulation for overcoming moderate IR drops in conduc- tors 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 7

... If the output current exceeds it maximum rating by typically 50 the output voltage drops to less than 98 original value, the LSN2-T/30-D12’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 8

... There are two ways to manage these timing and voltage differences. Either the power up/down sequence can be controlled by discrete On/Off logic controls for each power supply (see Figure 5). Or the power up/down cycle is set by Sequencing or Tracking circuits. Some systems combine both methods. www.murata-ps.com 25 Jun 2010 MDC_LSN2-T/30-D12 email: sales@murata-ps.com Series.B20Δ Page ...

Page 9

... MOSFETs. LSN2-T/30-D12 Series Figure 8. Staggered or Sequential Phasing—Inclusive (Fixed Delays) Figure 9. Staggered or Sequential Phasing—Exclusive Time) OUT Figure 10. Wiring for Simultaneous Phasing www.murata-ps.com 25 Jun 2010 MDC_LSN2-T/30-D12 DOSA-SIP, 30A POL DC/DC Converters (Fixed Cascaded Delays) email: sales@murata-ps.com Series.B20Δ Page ...

Page 10

... Lastly, changing the timing may require reprogramming the logic sequencer or rewriting software. Sequence/Track Input A different power sequencing solution is employed on the LSN2-T/30-D12 DC/DC converter. After external input power is applied and the converter stabilizes, a high impedance Sequence/Track input pin accepts an external analog voltage. ...

Page 11

... This can usually be ignored. [9] You may connect two or more Sequence inputs in parallel from two con- verters. Be aware of the increasing pull-up bias current and reduced input impedance. www.murata-ps.com 25 Jun 2010 MDC_LSN2-T/30-D12 IN powered all during the down ramp. Do not simply IN is typically IN email: sales@murata-ps ...

Page 12

... Bias source is in fact only a small external bypass capacitor slowly charged by leakage currents. Test your application to be sure. Output Adjustments The LSN2-T/30-D12 series includes a special output voltage trimming feature which is fully compatible with competitive units. The output voltage may be varied using a single trim resistor from the Trim input to Power Common. ...

Page 13

... DOSA-SIP, 30A POL DC/DC Converters Output Ripple & Noise ( OUT C = 10μF || 0.1μF, ’scope = 20 MHz BW) OUT Power-On Startup ( OUT Ch1 = V , Ch2 = V IN OUT StepLoad Transient Response ( 0-10A-0) IN Ch1 = V , Ch2 = A/div. OUT OUT email: sales@murata-ps.com 25 Jun 2010 MDC_LSN2-T/30-D12 Series.B20Δ Page ...

Page 14

... DOSA-SIP, 30A POL DC/DC Converters Output Ripple & Noise ( OUT C = 10μF || 0.1μF, ’scope = 20 MHz BW) OUT Power-On Startup ( OUT Ch1 = V , Ch2 = V IN OUT StepLoad Transient Response ( 0-15A-0) IN Ch1 = V , Ch2 = A/div. OUT OUT email: sales@murata-ps.com 25 Jun 2010 MDC_LSN2-T/30-D12 Series.B20Δ Page ...

Page 15

... DOSA-SIP, 30A POL DC/DC Converters Output Ripple & Noise ( OUT C = 10μF || 0.1μF, ’scope = 20 MHz BW) OUT Power-On Startup ( OUT Ch1 = V , Ch2 = V IN OUT StepLoad Transient Response ( 0-15A-0) IN Ch1 = V , Ch2 = A/div. OUT OUT email: sales@murata-ps.com 25 Jun 2010 MDC_LSN2-T/30-D12 Series.B20Δ Page ...

Page 16

... Output Ripple & Noise ( OUT C = 10μF || 0.1μF, ’scope = 20 MHz BW) OUT Power-On Startup ( OUT Ch1 = V , Ch2 = V IN OUT StepLoad Transient Response ( 0-15A-0) IN Ch1 = V , Ch2 = A/div. OUT OUT © 2010 Murata Power Solutions, Inc. email: sales@murata-ps.com 25 Jun 2010 MDC_LSN2-T/30-D12 Series.B20Δ Page ...

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