FEATURES • 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 - 95% @ 3.3V FULL LOAD • INPUT RANGE FROM 2.4VDC TO 5.5VDC • FIXED SWITCHING FREQUENCY (300KHZ) • SMD & SIP PACKAGES • OUTPUT VOLTAGE PROGRAMMABLE FROM 0.75VDC TO 3.3VDC 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 DOS10-05T (SMD type), DOH10-05T (for Vertical Mounting SIP type) and DOH10-05TA (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 95% 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 OUTPUT SPECIFICATIONS Output current Voltage accuracy INPUT SPECIFICATIONS 10A max ± 2%Vo(set) Full load and Vin(nom) Minimum load Line regulation Load regulation 0% Vin=Vo(set)+0.5V to Vin(max) at Full Load No Load to Full Load Ripple and noise (Note2) 20MHz bandwidth ± 0.3%Vo(set),typ ± 0.4%Vo(set),typ 15mVrms,max 50mVp-p,max ±0.4%, typ Temperature coefficient ΔIo /Δt = 2.5A/μS ,Vin(nom) Peak deviation 200mV,typ Dynamic load Load change step Setting time response (50% to 100% or (Vo<10%peak 25μS,typ (Note 2) 100% to 50% of Io(max)) deviation) ΔIo /Δt = 2.5A/μS ,Vin(nom) Peak deviation 100mV,typ Dynamic load Load change step Setting time response (50% to 100% or (Vo<10%peak 100μS,typ (Note 3) 100% to 50% of Io(max) deviation) Output current limit 200%,typ Output short-circuit current Hiccup, automatics recovery ESR≧1mΩ 1000μF,max External load capacitance 5000μF,max ESR≧10mΩ Output voltage overshoot-startup Vin=2.4~5.5V, F.L. 1%Vo(set) Voltage adjustability (see fig.1) (Note 4) 0.7525V ~ 3.63V GENERAL SPECIFICATIONS Efficiency Isolation voltage Switching frequency Approvals and standard See table None 300KHz, typ 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 Input voltage range Vo(set) < Vin – 0.5V Maximum input current Vin=2.4 to 5.5V; Io=Io(max) 2.4 – 5.5VDC 10A Input filter (Note 5) C filter Input no load current (Vin=5V, Io=0, module enabled) Input under voltage lockout Input reflected ripple current Vo(set) =0.75Vdc Vo(set) =3.3Vdc Start-up voltage Shutdown voltage 100mA,typ 130mA,typ 2.2V,typ 2.0V,typ 5~20MHz, 1μH source impedance 100mAp-p ENVIRONMENTAL SPECIFICATIONS Operating ambient temperature –40ºC ~ +85ºC(with derating) Storage temperature range –55ºC ~ +125ºC Thermal shock MIL-STD-810F Over temperature protection 125ºC,typ FEATURE SPECIFICATIONS Remote ON/OFF(Note 6) (Negative logic)(standard) ON = 0V < Vr < 0.3V OFF =1.5V < Vr < Vin(max) (Positive logic)(option) ON = 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 1.5mA,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 (Note7) Case 2 (Note8) 1ms,typ 1ms,typ 6.0g(0.22oz) 7 1.428 x 10 hrs 6 1.007 x 10 hrs Page 1 of 3 Issued Date：2007/10/12 Model Name ON/OFF Logic DOS10-05T DOS10-05T-P DOH10-05T DOH10-05T-P DOH10-05TA DOH10-05TA-P Negative Positive Negative Positive Negative Positive Package Input Voltage Output Voltage Output Current Efficiency (%) Min. Load Max. Load 5.0Vin, 3.3Vdc@10A 0A 10A 95% SMD 2.4 ~ 5.5Vdc Vertical Mounting Vin(min)=Vo(set)+0.5V SIP Horizontal Mounting SIP 0.75 ~ 3.3Vdc 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 0.75V to 3.3V 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: Rtrim = [ 21070 Vo – 0.7525 -5110 ]Ω 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 3×150μF low-ESR polymer capacitors // 2×47μF 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. DOS10-05T, Vo=3.3V, Derating Curve OUTPUT CURRENT,Io(A) 12 10 8 6 4 2 0 20 30 40 50 60 70 80 Fig. 1 90 AMBIENT TEMPERATURE,TA(℃) Table 1 Vo(set) (V) Rtrim (KΩ) 0.7525 Open 1.2 41.973 1.5 23.077 1.8 15.004 2.5 6.974 3.3 3.160 Page 2 of 3 Issued Date：2007/10/12 DOH10-05T VOUT VOUT +SENSE GND VOUT GND VIN VIN TRIM ON/OFF SIDE VIEW BOTTOM VIEW DOH10-05TA VOUT VOUT +SENSE GND VOUT GND VIN VIN TRIM ON/OFF SIDE VIEW BOTTOM VIEW DOS10-05T 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) Page 3 of 3 Issued Date：2007/10/12