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Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 09/18/2013 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 1 of 5 DATASHEET Rev. B DCNSR SERIES 1.5 to 15 Watts 1A Output Current, 3-Pin SIP Package Wide Input Voltage Range: 4.6 to 36VDC Non-Isolated DC/DC Converters

APPLICATIONS

  • Wireless Networks
  • Telecom / Datacom
  • Industry Control Systems
  • Semiconductor Equipment
  • Distributed Power Architectures
  • Microprocessor Power Applications

FEATURES

  • 1A Output Current
  • Single Outputs
  • 1.5 to 15 Watts Output Power
  • Wide Input Voltage Range: 4.6 to 36VDC
  • High Efficiency up to 95.5%
  • Small SIP Package: 0.46” x 0.40” x 0.30”
  • Fixed Switching Frequency
  • Short Circuit, Over Current, and Over Temperature Protection
  • Low Standby Current
  • Low Output Ripple and Noise
  • Negative Output Application
  • Pin-out compatible with LM78xx Linear Regulators
  • Compliant to RoHS EU Directive 2002/95/EC
  • Design Meets UL60950-1, EN60950-1, and IEC60950-1

DESCRIPTION

The DCNSR series consists of high performance non-isolated DC/DC converters that can deliver 1A of output current in a small 0.46” x 0.40” x 0.30” 3-Pin SIP package. This series features a wide operating temperature range of -40°C to +85°C, efficiency up to 95.5%, and low ripple and noise. These converters are also protected against over current, over temperature, and short circuit conditions. These converters are suited to replace 78xx linear regulators and can be used to convert a positive voltage into a negative voltage. The DCNSR series is RoHS compliant and has UL60950-1, EN60950-1, and IEC60950-1 safety approvals. These converters are suitable for use in wireless networks, tel ecom/datacom, industry control systems, semiconductor equipment, distributed power architectures, and microprocessor power applications. The DCNSR series also has two pin types available. Standard Type Suffix “A”

Rev. B DCNSR Series 1.5 to 15 Watts 1A Output Current Non-Isolated DC/DC Converters Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 09/18/2013 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 2 of 5 SPECIFICATIONS: DCNSR Series All specifications are based on 25°C, Nominal Input Voltage, and Maximum Output Current unless otherwise noted. We reserve the right to change specifications based on technological advances. SPECIFICATION TEST CONDITIONS Min Typ Max Unit INPUT SPECIFICATIONS Input Voltage Range (See Note 1) See Table No Load Input Current See Table Maximum Input Current Vin=Vin(min); Io=Io(max) 1 A Input Filter C filter Input Reflected Ripple Current 100 mA OUTPUT SPECIFICATIONS Output Voltage See Table Voltage Accuracy Full load -2.0 +2.0 % Vo Line Regulation -0.2 +0.2 % Vo 1.5V (standard) -0.6 +0.6 % Vo Others (Standard) -0.4 +0.4 % Vo 1.5V & 1.8V (suffix “A”) -1.2 +1.2 % Vo Load Regulation Others (suffix “A”) 10% to 100% of full load -0.4 +0.4 % Vo Output Power 1.5 – 15 Watts Output Current 1 A 1.5V to 6.5VDC output models 50 mVp-p Ripple & Noise 9V to 15VDC output models 20MHz Bandwidth 75 mVp-p Output Voltage Overshoot -Startup full load 1 % Vo Minimum Load 0 % Capacitive Load (max) Tested at minimum input voltage and constant resistive load 470 µF Output Current Limit 2.0 A Rise Time Time for Vo to rise from 10% to 90% of Vo 3.5 ms Start-up Time Nominal Vin and constant resistive lo ad power up 5 ms Temperature Coefficient -0.015 +0.015 %/°C DYNAMIC RESPONSE Peak Deviation 50% to 100% load step change 150 m V Recovery Time 50% to 100% load step change 250 µs PROTECTION Short Circuit Protection Continuous, automatic recovery Over Current Protection yes Over Temperature Protection Internal IC Junction 170 °C GENERAL SPECIFICATIONS Efficiency Typical value at min or max input voltage and full load See Table 1.5V to 3.3VDC output models 300 KHz Switching Frequency 5V to 15VDC output models 580 KHz Isolation Voltage none ENVIRONMENTAL SPECIFICATIONS Operating Temperature With derating (see derating curves) -40 +85 °C Storage Temperature -55 +125 °C Thermal Shock MIL-STD-810F Vibration MIL-STD-810F Relative Humidity Non-condensing 0 90 % RH BELLCORE TR-NWT-000332 26,130,000 hours MTBF (See Note 2) MIL-HDBK-217F 6,004,000 hours PHYSICAL SPECIFICATIONS Case Material Non-conductive black plastic Base Material none Potting Material Silicon (UL94-V0) Weight 0.07oz (1.9g) SAFETY Safety Approvals UL60950-1, IEC60950-1, EN60950-1

Rev. B DCNSR Series 1.5 to 15 Watts 1A Output Current Non-Isolated DC/DC Converters Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 09/18/2013 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 3 of 5 NOTES 1. The DCNSR series converters can be used to convert a positive voltage into a negative voltage. 2. BELLCORE TR-NWT-000332. Case 1: 50% Stress, Temperature at 40°C. (Ground, Benign, controlled environment) MIL-HDBK-217F Notice2 @Ta=25°C, Full load. (Ground, Benign, controlled environment) CAUTION: This power module is not internally fused. An input line fuse must always be used. Figure 1 C1 and C2 are required and should be positioned close to the converter pins. Maximum capacitive load including C2 is 470µF. C1 10µF/50V 1210 X5R MLCC C2 10µF/25V 1206 X5R MLCC POSITIVE OUTPUT APPLICATION Output Current Efficiency Model Number Input Voltage Range Nominal Input Voltage Output Voltage Min Load Max Load Switching Frequency No Load Current Output Power Min Vin Max Vin DCNSR-12S05 6.5 – 36 VDC 12 VDC 5 VDC 0A 1A 580KHz 2.5mA 5W 91.5% 83.0% DCNSR-12S09 10.5 – 36 VDC 12 VDC 9 VDC 0A 1A 580KHz 3.5mA 9W 94.5% 88.5% DCNSR-24S12 13.5 – 36 VDC 24 VDC 12 VDC 0A 1A 580KHz 2.5mA 12W 95.0% 91.5% DCNSR-24S15 16.5 – 36 VDC 24 VDC 15 VDC 0A 1A 580KHz 3.5mA 15W 95.5% 92.5% NEGATIVE OUTPUT APPLICATION (See Note 1) Output Current Efficiency Model Number Input Voltage Range Nominal Input Voltage Output Voltage Min Load Max Load Switching Frequency No Load Current Output Power Min Vin Max Vin DCNSR-12S05 4.6 – 31 VDC 12 VDC -5 VDC 0A -0.4A 580KHz 3mA 2W 79.5% 78.5% DCNSR-12S09 7 – 27 VDC 12 VDC -9 VDC 0A -0.3A 580KHz 7mA 2.7W 85.0% 82.0% DCNSR-24S12 7 – 24 VDC 12 VDC -12 VDC 0A -0.3A 580K Hz 8mA 3.6W 85.0% 85.5% DCNSR-24S15 7 – 21 VDC 12 VDC -15 VDC 0A -0.2A 580KHz 10mA 3W 85.5% 84.5%

Rev. B DCNSR Series 1.5 to 15 Watts 1A Output Current Non-Isolated DC/DC Converters Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 09/18/2013 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 4 of 5 CHARACTERISTICS (POSITIVE OUTPUT) DCNSR-12S05 Derating Curve DCNSR-12S05 Efficiency vs Input Voltage DCNSR-12S05 Efficiency vs Output Load CHARACTERISTICS (NEGATIVE OUTPUT) DCNSR-12S05 Derating Curve DCNSR-12S05 Efficiency vs Input Voltage DCNSR-12S05 Efficiency vs Output Load AMBIENT TEMPERATURE (° C) OUTPUT POWER (%) AMBIENT TEMPERATURE (° C) OUTPUT POWER (%)

Rev. B DCNSR Series 1.5 to 15 Watts 1A Output Current Non-Isolated DC/DC Converters Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 09/18/2013 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 5 of 5 MECHANICAL DRAWINGS PIN CONNECTIONS Pin Assignment 1 +Vin

2 GND

0.46 (11.7) Unit: inches (mm) 0.30 (7.5) FRONT VIEW 1 2 3 Rectangular Pin 0.16 (4.1) 0.40 (10.1) 0.02 (0.5) 0.094 (2.4) 0.200 (5.08) 0.100 (2.54) BOTTOM VIEW 0.094 (2.4) Rectangular Pin FRONT VIEW 2 3 BOTTOM VIEW 0.02 (0.5) 0.16 (4.1) 0.100 (2.54) 0.200 (5.08) Tolerance: X.XX±0.02 (X.X±0.5) X.XXX±0.01 (X.XX±0.25) Pin Pitch Tolerance: ±0.01 (0.25) Pin Dimensions Tolerance: ±0.004 (0.1) All dimensions are for reference only STANDARD MODELS SUFFIX “A” MODELS Unit: inches (mm) COMPANY INFORMATION Wall Industries, Inc. has created custom and modified units for over 50 years. Our in-house research and development engineers will provide a solution that exceeds your performance requirements on-time and on budget. Our ISO9001-2008 certification is just one example of our commitment to producing a high quality, well-documented product for our customers. Our past projects demonstrate our commitment to you, our customer. Wall Industries, Inc. has a reputation for working closely with its customers to ensure each solution meets or exceeds form, fit and function requirements. We will continue to provide ongoing support for your project above and beyond the design and production phases. Give us a call today to discuss your future projects. Contact Wall Industries for further information: Phone : /telephonesolid(603)778-2300 Toll Free : /telephonesolid(888)597-9255 Fax : /telephonesolid(603)778-9797 E-mail : sales@wallindustries.com Web : www.wallindustries.com Address : 5 Watson Brook Rd. Exeter, NH 03833