Single Output LSN-10A Models
Non-Isolated, 5VIN, 1-3.8VOUT 10 Amp DC/DC In SIP Package
FEATURES
Industry-standard SIP pinout Shorter (2.0" vs. 2.5") package length 4.5-5.5V input range 1/1.2/1.5/1.8/2/2.5/3.3/3.8VOUT @ 10A Non-isolated, fully synchronous, 300kHz, buck topology Outstanding performance: ±1% setpoint accuracy Efficiencies to 95% @ 10 Amps Noise as low as 10mVp-p Stable no-load operation Trimmable output voltage Remote on/off and sense pins Thermal shutdown No derating to +71°C, natural convection UL/IEC/EN60950-1 certified EMC compliant
Typical units
PRODUCT OVERVIEW
Murata Power Solutions' new LSN D5 Series SIP’s (single-in-line packages) are non-isolated DC/DC converters that accept a 5V input (4.5V to 5.5V input range) and deliver 1V, 1.2V, 1.5V, 1.8V, 2V, 2.5, 3.3 or 3.8V outputs at 10 Amps. LSN D5 SIP’s 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. The miniature size of LSN D5's makes them ideal for true point-of-use power processing. Vertical-mount packages occupy a mere 0.7 square inches (440 sq. mm), and they are available in industry-standard and Tyco-compatible pinout. Horizontal-mount packages ("H" suffix) are only 0.34 inches (8.6mm) high. The LSN's best-in-class power density is achieved with a fully synchronous, fixed-frequency (300kHz), buck topology that also delivers: high efficiency (to 95%), low noise (10mVp-p typ.), tight line/load regulation (±0.1%/±0.25% max.), quick step response (100μsec), stable no-load operation, and no output reverse conduction. The fully functional LSN’s feature output overcurrent detection, continuous short-circuit protection, an output-voltage trim function, a remote on/ off control pin (pull high to disable), thermal shutdown, and a sense pin. High efficiency enables the LSN D5's to deliver rated output currents of 10 Amps at ambient temperatures to +71°C with no air flow (natural convection). If your low-voltage, high-current requirements make the use of inefficient linear regulators impractical, take a look at one of C&D’s easy-touse, low-cost LSN SIP’s. All devices are UL/IEC/ EN60950-1 certified and EMC compliant. UL, CB, HALT and EMC reports are available upon request. Selected models are RoHS compliant.
For full details go to www.murata-ps.com/rohs
+INPUT (7,8) 10.5
+OUTPUT (1,2,4)
220μF
44μF
47.1μF (100.1μF)
470μF (330μF)
+SENSE (3) COMMON (5)
COMMON (6) CURRENT SENSE
VCC ON/OFF CONTROL (11)
PWM CONTROLLER
REFERENCE & ERROR AMP
For devices with the sense-pin removed ("B" suffix), the feedback path is through the +Output pin and not the +Sense pin. Values in parenthesis for 3.3V models only.
Typical topology is shown.
TRIM (10)
Figure 1. Simplified Schematic
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Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_LSN-10A D5 Models.B01 Page 1 of 15
Single Output LSN-10A Models
Non-Isolated, 5VIN, 1-3.8VOUT 10 Amp DC/DC In SIP Package
Performance Specifications and Ordering Guide
Output Input
Model
LSN-1/10-D5 LSN-1.2/10-D5 LSN-1.5/10-D5 LSN-1.8/10-D5 LSN-2/10-D5 LSN-2.5/10-D5 LSN-3.3/10-D5 LSN-3.8/10-D5
VOUT (Volts)
1 1.2 1.5 1.8 2 2.5 3.3 3.8
IOUT (Amps)
10 10 10 10 10 10 10 10
R/N (mVp-p) Typ. Max.
10 10 10 10 10 10 10 10 35 35 35 35 35 35 35 35
Regulation (Max.) Line Load
±0.1% ±0.1% ±0.1% ±0.1% ±0.1% ±0.1% ±0.1% ±0.1% ±0.25% ±0.25% ±0.25% ±0.25% ±0.25% ±0.25% ±0.25% ±0.25%
VIN Nom. (Volts)
5 5 5 5 5 5 5 5
Range (Volts)
4.5-5.5 4.5-5.5 4.5-5.5 4.5-5.5 4.5-5.5 4.5-5.5 4.5-5.5 4.5-5.5
IIN (mA/A)
50/2.43 50/2.85 50/3.48 50/4.09 50/4.51 50/5.50 50/7.25 50/8.0
Efficiency Full Load ½ Load Min.
83% 85% 87% 89% 89.5% 91% 92% 92%
Typ.
86% 88% 90% 91.5% 92.5% 94% 95% 95%
Typ.
89% 91% 92% 93.5% 94% 95.5% 96% 96%
Package (Case, Pinout)
B7/B7x, P59 B7/B7x, P59 B7/B7x, P59 B7/B7x, P59 B7/B7x, P59 B7/B7x, P59 B7/B7x, P59 B7/B7x, P59
Typical at TA = + 25°C under nominal line voltage and full-load conditions, unless otherwise noted. All models are tested and specified with external 22μF input and output capacitors. These capacitors are necessary to accommodate our test equipment and may not be required to achieve specified performance in your applications. See I/O Filtering and Noise Reduction. Ripple/Noise (R/N) is tested/specified over a 20MHz bandwidth and may be reduced with external filtering. See I/O Filtering and Noise Reduction for details.
These devices have no minimum-load requirements and will regulate under no-load conditions. Regulation specifications describe the output-voltage deviation as the line voltage or load is varied from its nominal/midpoint value to either extreme. Nominal line voltage, no-load/full-load conditions. Avaiilable with RoHS (Reduction of Hazardous Substances) compliance. These are not complete model numbers. Please use the Part Number Structure when ordering.
PART NUMBER STRUCTURE
L SN - 1.8 / 10 - D5 B H J - C
Output Configuration: L = Unipolar Low Voltage Non-Isolated SIP Nominal Output Voltage: 1, 1.2, 1.5, 1.8, 2, 2.5, 3.3, or 3.8V Maximum Rated Output Current in Amps
See page 15 for details.
RoHS-6 compliant* J Suffix: Reversed Pin Vertical Mount H Suffix: Horizontal Mount B Suffix: No Remote Sense (Pin 3 removed)
Note: Not all model number combinations are available. Contact MPS.
Input Voltage Range: D5 = 4.5 to 5.5 Volts (5V nominal) * Contact Murata Power Solutions for availability.
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_LSN-10A D5 Models.B01 Page 2 of 15
Single Output LSN-10A Models
Non-Isolated, 5VIN, 1-3.8VOUT 10 Amp DC/DC In SIP Package
MECHANICAL SPECIFICATIONS
0.35 (8.89) 2.00 (50.80) 0.05 (1.27) 12345 6 7 8 9 10 11 0.21 (5.33) 0.50 (12.7) ISOLATING PAD 0.17 (4.32)
2.00 (50.80)
0.34 (8.64) 0.20 (5.08) 0.50 (12.7)
12345
6 7 8 9 10 11
0.030 ±0.001 DIA. (0.762 ±0.025) 0.400 (10.16) 4 EQ. SP. @ 0.100 (2.54) 0.56 (14.22) 1.000 (25.40) 0.500 (12.70) 5 EQ. SP. @ 0.100 (2.54)
0.05 (1.27) 0.360 (9.14)
0.16 (4.06)
0.030 ±0.001 DIA. (0.762 ±0.025) 0.400 (10.16) 4 EQ. SP. @ 0.100 (2.54) 1.000 (25.40) 0.500 (12.70) 5 EQ. SP. @ 0.100 (2.54)
0.05 (1.27)
0.110 (2.79) 0.046 (1.17)
0.53 (13.46)
Case B7A Horizontal Mounting
LAYOUT PATTERN TOP VIEW 0.50 (12.7) 0.25 (6.35)
0.34 (8.64)
0.45 (11.43) LAYOUT PATTERN TOP VIEW
Case B7 Vertical Mounting (Standard)
RECOMMENDED COPPER PAD ON PCB (0.55 SQ. IN.)
2.00 (50.80)
0.36 (9.14) 0.20 (5.08) 0.50 (12.7)
0.17 (4.32) 12345 6 7 8 9 10 11
Dimensions in inches (mm)
0.400 (10.16) 4 EQ. SP. @ 0.100 (2.54)
0.030 ±0.001 DIA. (0.762 ±0.025) 1.000 (25.40) 0.500 (12.70) 5 EQ. SP. @ 0.100 (2.54)
0.05 (1.27)
0.046 (1.17) 0.106 (2.69)
0.306 (7.8)
LAYOUT PATTERN TOP VIEW
0.36 (9.14)
Case B7B Reverse Pin Vertical Mounting (Tyco-compatible)
Pin 1 2 3 4
Function P59* +Output +Output +Sense * +Output
I/O Connections Pin Function P59* 5 Common 6 Common 7 +Input 8 +Input
Pin 9 10 11
Function P59* No Pin VOUT Trim On/Off Control
Pin 3 (+Sense) removed for "B" suffix models.
www.murata-ps.com
Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000
MDC_LSN-10A D5 Models.B01 Page 3 of 15
Single Output LSN-10A Models
Non-Isolated, 5VIN, 1-3.8VOUT 10 Amp DC/DC In SIP Package
Performance/Functional Specifications
Typical @ TA = +25°C under nominal line voltage and full-load conditions unless noted. Input All models are tested/specified with external 22μF input/output capacitors.These caps accommodate our test equipment and may not be required to achieve specified performance in your applications. All models are stable and regulate within spec under no-load conditions. See Technical Notes and Performance Curves for details. The On/Off Control (pin 11) is designed to be driven with open-collector logic or the application of appropriate voltages (referenced to Common, pins 5 and 6). Output noise may be further reduced with the installation of additional external output filtering. See I/O Filtering and Noise Reduction.
Input Voltage Range Input Current: Normal Operating Conditions Inrush Transient Standby/Off Mode Output Short-Circuit Condition Input Reflected Ripple Current Input Filter Type Overvoltage Protection Reverse-Polarity Protection Undervoltage Shutdown On/Off Control
4.5 to 5.5 Volts (5V nominal) See Ordering Guide 0.014A2sec 3mA 70mA average 50mAp-p Capacitive (264μF) None None None On = open (internal pulldown) Off = +2.8V to +VIN (