DC/DC Converters SPECIFICATIONS CTDD2727DF-S Series Wide Input Regulated & Non-Isolated 3W~9W Output, Single Output Not shown at actual size. RoHS Compliant ctparts.com Vin Nom. (VDC) Input Range (VDC) Vin Max.* (VDC) Vout (VDC) CTDD2727DF-0305-S-3 CTDD2727DF-0712-S-3 CTDD2727DF-0724-S-3 CTDD2727DF-1203-S-3 CTDD2727DF-1205-S-3 CTDD2727DF-2403-S-3 CTDD2727DF-2405-S-3 3.3 7.2 7.2 12 12 24 24 2.7-5.4 6.4-8.4 6.4-8.4 9-18 9-18 18-35 18-35 5.4 10 10 20 20 35 35 5 12 24 3.3 5 3.3 5 CTDD2727DF-0705-S-5 CTDD2727DF-0712-S-5 CTDD2727DF-1205-S-5 CTDD2727DF-1209-S-5 CTDD2727DF-2405-S-5 7.2 7.2 12 12 24 6.4-8.4 6.4-8.4 9-18 9-18 18-35 10 10 20 20 35 CTDD2727DF-0712-S-9 7.2 6.4-8.4 10 Part Number Iout Max. (mA) Iout Min. (mA) Effi. Typ. (%) 150 250 100 900 600 900 600 15 25 10 90 60 90 60 80 81 82 79 81 79 80 5 12 5 9 5 1000 417 1000 550 1000 100 42 100 55 100 85 85 85 87 85 12 750 75 86 *If Input voltage above specified may cause permanent damage to the device ISOLATION SPECIFICATIONS Item Test Condition MIN Isolation Voltage Flash tested for 1 minute 0 VDC Test at 500VDC 0 MΩ Isolation Resistance TYP MAX Units OUTPUT SPECIFICATIONS FEATURES Item Efficiency: To 85% Temperature Range: -20°C to +71°C Package: UL94-V0 Miscellaneous: Wide (2:1) Input Range. No heat sink required. Industry Standard Pinout. Single Output. Custom service available. Samples available. CHARACTERISTICS Test Condition 3W Output Power MAX Units 3 W ±3 % Refer to Recommended Circuit Load regulation From 10% to 100% load ±0.5 % Line regulation Input Voltage from low to high ±0.3 % Temperature drift (Vout) Refer to Temp. Derating Graph 0.03 %/°C Ripple 20Hz to 300kHz Bandwidth 30 50 mVp-p Noise DC-20MHz Bandwidth 80 150 mVp-p Switching frequency 100% load, nominal input voltage 100 400 KHz Note: 1. All specifications measured at TA=25°C, humidity<75%, nominal input voltage and rated output unless otherwise specified. TYPICAL CHARACTERISTICS Temperature Derating Graph Output Power (%) 120 100 80 60 40 Safe Operating Area 20 0 -40 0 120 40 71 85 Ambient Temperature (°C) 01.05.07 Technologies TYP 0.3 Positive voltage accuracy Output Short Circuit Protection: Continuous Temperature Rise at Full Load: 30°C (Typ.) Cooling: Free air convection No Load, Power Consumption: 500mW (typical) Operating Temperature Range: -20°C to +71°C Storage Temperature Range: -55°C to +125°C Lead Temperature: 300°C (1.5mm from case for 10 seconds) Storage Humidity Range: < 95% Case Material: Plastic (UL94-V0) MTBF: >3,500,000 hours Miscellaneous: RoHS Compliant. CENTRAL MIN Manufacturer of Passive and Discrete Semiconductor Components 800-684-5322 Inside US 949-453-1811 Outside US Copyright © 2006 by CT Magnetics, DBA Central Technologies. All rights reserved. CT Magnetics reserves the right to make improvements or change specifications without notice DC/DC Converters ctparts.com CTDD2727DF-S Series Wide Input Regulated & Non-Isolated 3W~10W Output, Single Output OUTLINE DIMENSIONS & RECOMMENDED FOOTPRINT DETAILS CTDD2727DF-S Package 27.50 9.00 Side View 4.00 20.32 3 4 27.50 Top View 1 2 CTDD2727DF-S Footprint 2.54 1.60ø+0.15/-0 4 3 1 2 2.54 Note: All Pins on a 2.54m pitch; all pin diameters are 0.50mm; all dimensions in mm. PIN CONNECTIONS Pin Function 1 2 3 4 4 3 COM Vin +Vo NC Bottom View 2 1 RECOMMENDED CIRCUIT All the CTDD2727DF-S Series have been tested according to the following recommended testing circuit before leaving factory. This series should be tested under load. Never be tested under no load (See figure 1 & 2). If you want to further decrease the input/output ripple, you can increase capacitance properly or choose capacitors with low ESR. However, the capacitance should not be too high (See table 1). If you want to use the products in high EMI, please choose our metal packagedproducts. External Capacitor Table (table 1) Figure 2 Vin C in C out (0+70°C) C out (-40+85°C) lp 100µF 24V & 48V 10µF 100µF (electrolytic capacitor) 47µF (tantalum capacitor) Vin + Vout DC-DC + 100µF 25V 100µF 25V GND Load Input Current (A) Figure 1 5V & 12V Input Voltage Range GND Input Voltage (V) CENTRAL Technologies 01.05.07 Manufacturer of Passive and Discrete Semiconductor Components 800-684-5322 Inside US 949-453-1811 Outside US Copyright © 2006 by CT Magnetics, DBA Central Technologies. All rights reserved. CT Magnetics reserves the right to make improvements or change specifications without notice