1 FEATURES / 3 • OUTPUT CURRENT UP TO 10A • SMALL SIZE AND LOW PROFILE : 1.30” X 0.53” X 0.30” (SMD) ; 2.00” X 0.50” X 0.28” (SIP) • HIGH EFFICIENCY - 93% @ 3.3V FULL LOAD • INPUT RANGE FROM 8.3VDC TO 14.0VDC • FIXED SWITCHING FREQUENCY (300KHZ) • SMD & SIP PACKAGES • OUTPUT VOLTAGE PROGRAMMABLE FROM 0.75VDC TO 5.0VDC VIA EXTERNAL RESISTOR • INPUT UNDER-VOLTAGE LOCKOUT • UL60950-1, EN60950-1 AND IEC60950-1 LICENSED • ISO9001 CERTIFIED MANUFACTURING FACILITIES • COMPLIANT TO RoHS EU DIRECTIVE 2002/95/EC APPLICATIONS Wireless Network Telecom/Datacom Industry Control System Distributed Power Architectures Semiconductor Equipment Microprocessor Power Applications OPTIONS Positive Logic Remote on/off DESCRIPTION DOS10-12T (SMD type), DOH10-12T (for Vertical Mounting SIP type) and DOH10-12TA (for Horizontal Mounting SIP type) are non-isolated DC/DC converters that can deliver up to 10A of output current with full load efficiency of 93% at 3.3V output. T E C H N I C A L S P E C I F I C AT I O N All specifications are typical at nominal input, full load and 25ºC otherwise noted INPUT SPECIFICATIONS OUTPUT SPECIFICATIONS Output current Voltage accuracy 10A max. Full load and Vin(nom.) ± 2%Vo(set) Minimum load Line regulation 0% Vin=Vin(min.) to Vin(max.) at Full Load ± 0.4%Vo(set),typ. 30mVrms,max. 75mVp-p,max. ±0.4%, typ. Load regulation No Load to Full Load Ripple and noise 20MHz bandwidth (Note2) Temperature coefficient ΔIo /Δt = 2.5A/μS ,Vin(nom.) Dynamic load Load change step response (50% to 100% or (Note 2) 100% to 50% of Io(max.)) ΔIo /Δt = 2.5A/μS,Vin(nom.) Dynamic load Load change step response (50% to 100% or (Note 3) 100% to 50% of Io(max.)) Output current limit ± 0.3%Vo(set),typ. Peak deviation 200mV,typ. Setting time (Vo<10%peak 25μS,typ. deviation) Peak deviation 100mV,typ. Setting time (Vo<10%peak 25μS,typ. deviation) 200% Output short-circuit current Hiccup, automatics recovery ESR≧1mΩ 1000μF,max. External load capacitance 5000μF,max. ESR≧10mΩ Vin=Vin(min.) to Vin(max.) Output voltage overshoot-startup 1%Vo(set) F.L. Voltage adjustability (see fig.1) (Note 4) 0.7525V ~ 5.0V GENERAL SPECIFICATIONS Efficiency See table Isolation voltage None Switching frequency 300KHz, typ. Approvals and standard IEC60950-1, UL60950-1, EN60950-1 SMD Dimensions SIP 1.30 X 0.53 X 0.30 Inch (33.0 X 13.5 X 7.7 mm) 2.00 X 0.50 X 0.28 Inch (50.8 X 12.7 X 7.2 mm) Weight MTBF (Note 1) BELLCORE TR-NWT-000332 MIL-HDBK-217F 6.0g(0.22oz) 7 1.409 x 10 hrs 6 1.048 x 10 hrs Vo(set) ≦3.63V Vo(set) >3.63V Input voltage range Maximum input current Vin(nom.) =12V 8.3 – 14VDC 8.3 – 13.2VDC Vin=8.3 to 14.0Vdc; Io=Io(max.) 7A Vo(set) =0.75Vdc Vo(set) =5.0Vdc Start-up voltage Shutdown voltage 40mA,typ. 100mA,typ. 7.9V,typ. 7.8V,typ. Input filter (Note 5) C filter Input no load current (Vin=12V, Io=0, module enabled) Input under voltage lockout Input reflected ripple current 5~20MHz, 1μH source impedance 20mAp-p ENVIRONMENTAL SPECIFICATIONS Operating ambient temperature –40ºC ~ +85ºC(with derating) Storage temperature range Thermal shock –55ºC ~ +125ºC MIL-STD-810F Over temperature protection 125ºC,typ. FEATURE SPECIFICATIONS Remote ON/OFF(Note 6) Negative logic(standard) ON = 0V < Vr < 0.3V OFF =2.5V < Vr < Vin(max.) Positive logic(option) ON = (Vin-4) < Vr < Vin(max.) OFF=0V < Vr < 0.3V Input current of Remote control pin Remote off state input current Nominal Vin IIN=10μA,max. IIN=1mA,max. IIN=10μA,max. IIN=1mA,max. 10μA~1.0mA 2.0mA,typ. Remote sense range 0.5V,max. Rise time 6ms,max. Time for Vo to rise from 10% to 90%of Vo(set) Turn-on delay time Case 1 (Note 7) Case 2 (Note 8) 3ms,typ. 3ms,typ. 2 ON/OFF Logic Model Name DOS10-12T DOS10-12T-P DOH10-12T DOH10-12T-P DOH10-12TA DOH10-12TA-P Package Negative Positive Negative Positive Negative Positive Input Voltage Output Voltage SMD Output Current / Efficiency (%) Min. Load Max. Load 12Vin, 3.3Vdc@10A 0A 10A 93% Vo(set)≦3.63V Vin = 8.3-14Vdc Vertical Mounting SIP Vo(set)＞3.63V Horizontal Mounting Vin = 8.3-13.2Vdc SIP 0.75 ~ 5.0Vdc Note 1. BELLCORE TR-NWT-000332. Case 1: 50% Stress, Temperature at 40ºC. MIL-HDBK-217F Notice2 @Ta=25 ºC, Full load(Ground, Benign, controlled environment). 2. External with Cout = 1μF ceramic//10μF tantalum capacitors. 3. External with Cout = 2×150μF polymer capacitors. 4. Output voltage programmable from 0.7525V to 5V by connecting a single resistor (shown as Rtrim in Table 1) between the TRIM and GND pins of the module.To calculate the value of the resistor Rtrim for a particular output voltage Vo, use the following equation: 10500 -1000 Ω Vo – 0.7525 5. It’s necessary to equip the external input capacitors at the input of the module. The capacitors should connect as close as possible to the input terminals that ensuring module stability. The external Cin is 4×47μF ceramic capacitors at least. 6. Device code with suffix “-P” – Positive logic(On/Off is open collector/drain logic input; Signal referenced to GND ) Device code with no suffix – Negative logic (On/Off pin is open collector/drain logic input with external pull –up resistor; signal referenced to GND) 7. Case 1 :On/Off input is set to logic low (module on) and then input power is applied (delay from instant at which Vin=Vin(min.) until Vo=10% of Vo(set)) 8. Case 2 :Input power is applied for at least one second and then the On/Off input is set to logic low (delay form instant at which Von/off=0.3V until Vo=10% of Vo(set)) CAUTION: This power module is not internally fused. An input line fuse must always be used. ] [ DOS10-12T, Vo=3.3V, Derating Curve 12 OUTPUT CURRENT,Io(A) Rtrim = 10 8 6 4 2 0 20 30 40 50 60 70 AMBIENT TEMPERATURE,TA(℃) 80 90 Fig. 1 Table 1 Vo(set) (V) Rtrim (KΩ) 0.7525 Open 1.2 22.46 1.5 13.05 1.8 9.024 2.5 5.009 3.3 3.122 5 1.472 3 3 DOH10-12T VOUT VOUT VOUT +SENSE GND GND VIN VIN TRIM ON/OFF BOTTOM VIEW SIDE VIEW DOH10-12TA VOUT VOUT +SENSE GND VOUT GND VIN VIN TRIM ON/OFF BOTTOM VIEW SIDE VIEW DOS10-12T BOTTOM VIEW SIDE VIEW 1. All dimensions in Inches (mm) Tolerance: X.XX±0.02 (X.X±0.5) X.XXX±0.01 (X.XX±0.25) 2. Pin pitch tolerance ±0.01(0.25) 3. Pin dimension tolerance ±0.004 (0.1) Last update:2008/6/4 / 3