YEV09T06 6A DC-DC POL Converter 4.5V to 13.8V Input 0.59V to 5.1V Output Data Sheet Member of the Applications Low voltage, high density systems with Intermediate Bus Architectures (IBA) Point-of-load regulators for high performance DSP, FPGA, ASIC, and microprocessors Desktops, servers, and portable computing Broadband, networking, optical, and communications systems Family Features RoHS lead free and lead-solder-exempt products are available Wide operating temperature range: 0 to 70 ºC; optional to a range of -40 to 85 ºC High efficiency synchronous buck topology Low noise fixed frequency operation Wide input voltage range: 4.5V–13.8V High continuous output current: 6A Programmable output voltage range: 0.59V–5.1V Overcurrent, and output overvoltage protections with automatic restart Enable input Start up into prebiased load No minimum load requirements High MTBF of 67 million hours Industry standard size through-hole single-in-line package and pinout 0.41”x0.40” (10.4mm x 10.16mm) Low height of 0.65” (16.51mm) UL94 V-0 flammability rating UL60950, CSA C22.2 No. 60950-00, and TUV EN60950-1:2001 Benefits One part that covers many applications Reduces board space, system cost and complexity, and time to market Description The YEV09T06, non-isolated DC-DC point of load (POL) converter, delivers up to 6A of output current in an industry-standard single-in-line (SIP) through-hole package. The YEV09T06 POL converter is an ideal choice for Intermediate Bus Architectures where point of load conversion is a requirement. Operating from a 4.5-13.8V input the POL converter provides an extremely tightly regulated programmable output voltage of 0.59V to 5.1V. The POL converter offers exceptional thermal performance, even in high temperature environments with minimal airflow. This performance is accomplished through the use of advanced circuit solutions, packaging and processing techniques. The resulting design possesses ultra-high efficiency, excellent thermal management, and a slim body profile that minimizes impedance to system airflow, thus enhancing cooling for both upstream and downstream devices. The use of automation for assembly, coupled with advanced power electronics and thermal design, results in a product with extremely high reliability. ZD-02094 Rev 1.1, 25-Mar-09 www.power-one.com Page 1 of 12 YEV09T06 6A DC-DC POL Converter 4.5V to 13.8V Input 0.59V to 5.1V Output Data Sheet 1. Ordering Information YE V 09 T 06 – 0 z Product Family Profile Input Voltage PCB Mounting Output Current Dash Options RoHS Compliance 4.5V to 13.8V Throughhole 0 – 0 to 70 ºC operating range. R – -40 to 85 ºC operating range. No suffix - RoHS compliant with Pb solder exemption1 G - RoHS compliant for all six substances POL Converter Vertical 6A ______________________________________ 1 The solder exemption refers to all the restricted materials except lead in solder. These materials are Cadmium (Cd), Hexavalent chromium (Cr6+), Mercury (Hg), Polybrominated biphenyls (PBB), Polybrominated diphenylethers (PBDE), and Lead (Pb) used anywhere except in solder. Example: YEV09T06-0G: YEV09T06 POL converter with the commercial temperature range and lead-free solder. Refer to Figure 1 for label marking information. Figure 1. Label Drawing 2. Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings may cause performance degradation, adversely affect longterm reliability, and cause permanent damage to the converter. Parameter Conditions/Description Min Max Units Input Voltage Continuous -0.3 15 VDC Ambient Temperature Range Operating 0 70 C -55 125 C 125 C Storage Temperature (Ts) Case Temperature (Tc) 3. Measured on the inductor L100 Environmental and Mechanical Specifications Parameter Conditions/Description Min Nom Weight MTBF Calculated Per Telcordia Technologies SR-332, Method I Case 1, 50% electrical stress, 40°C ambient temperature Lead Plating YEV09T06-0 and YEV09T06-0G ZD-02094 Rev 1.1, 25-Mar-09 www.power-one.com Max Units 2.5 grams 67 MHrs 100% Matte Tin Page 2 of 12 YEV09T06 6A DC-DC POL Converter 4.5V to 13.8V Input 0.59V to 5.1V Output Data Sheet 4. Electrical Specifications Specifications apply at the input voltage from 4.5V to 13.8V, output load from 0 to 6A, output voltage from 0.59V to 5.1V, 22µF external output capacitor, and ambient temperature from 0°C to 70°C unless otherwise noted. 4.1 Input Specifications Parameter Conditions/Description Min Nom Max Units Input voltage (VIN) 0.59V ≤ VOUT ≤ 3.63V 3.64V ≤ VOUT ≤ 5.1V 4.5 6.5 12 12 13.8 13.8 VDC Input Voltage Ramping Up 4.1 4.3 4.5 VDC Input Voltage Ramping Down 3.9 4.1 4.3 VDC Undervoltage Lockout Turn On Threshold Undervoltage Lockout Turn Off Threshold Standby Input Current VIN=12V, POL is disabled via ON/OFF 20 mADC Input Reflected Ripple Current Peak-to-Peak BW=5MHz to 20MHz, LSOURCE=1µH, See Figure 16 for setup 60 mA 4.2 Output Specifications Parameter Conditions/Description Min Max Units Output Voltage Range (VOUT) Programmable with a resistor between TRIM and GND pins 0.59 5.1 VDC Output Voltage Setpoint Accuracy, VOUT≥1V Output Voltage Setpoint Accuracy, VOUT<1V VIN=12V, IOUT=IOUT MAX, 0.1% trim resistor, room temperature VIN=12V, IOUT=IOUT MAX, 0.1% trim resistor, room temperature -1.0 1.0 %VOUT -10 10 mVDC Line Regulation, VOUT≥2.5V VIN MIN to VIN MAX 0.5 %VOUT Load Regulation, VOUT≥2.5V 0 to IOUT MAX 0.4 %VOUT Line Regulation, VOUT<2.5V VIN MIN to VIN MAX 5 mVDC Load Regulation, VOUT<2.5V 0 to IOUT MAX 10 mVDC Output Voltage Regulation Over operating input voltage, resistive load, and temperature conditions until the end of life 2.0 %VOUT Output Voltage Peak-to-Peak Ripple and Noise, BW=20MHz, Full Load VIN=12V, VOUT=0.6V VIN=12V, VOUT=3.3V VIN=12V, VOUT=5.0V 10 20 35 25 40 50 mV mV mV Dynamic Regulation Peak Deviation Settling Time VIN=12V, VOUT=3.3V 50 - 100% load step, Slew rate 1A/s, to 10% of peak deviation 80 50 250 100 mV s Efficiency VIN=12V Full Load Room temperature VOUT=0.6V VOUT=0.8V VOUT=1.2V VOUT=1.5V VOUT=1.8V VOUT=2.5V VOUT=3.3V VOUT=5.0V 69 75 81 84 85 89 91 92.5 % % % % % % % % 500 kHz Switching Frequency ZD-02094 Rev 1.1, 25-Mar-09 www.power-one.com Nom -2.0 Page 3 of 12 YEV09T06 6A DC-DC POL Converter 4.5V to 13.8V Input 0.59V to 5.1V Output Data Sheet Parameter Conditions/Description Min Output Current (IOUT) VIN MIN to VIN MAX 0 Output Current Derating VIN=12V, VOUT=0.6-5.0V, TAMB=70°C, Natural Convection 6 Turn-On Delay Time POL is Enabled ON/OFF pin is pulled high From VIN=VIN MIN to VOUT=0.1*VOUT.SET 0.2 1 ms Turn-On Delay Time1 POL is Disabled VIN=12V From ON/OFF pin changing its state from low to high until VOUT=0.1*VOUT.SET 0.2 1 ms Rise Time1 COUT=0 µF, Resistive Load From VOUT=0.1*VOUT.SET to VOUT=0.9*VOUT.SET 1.5 2 ms Admissible Output Capacitance IOUT=IOUT MAX, Resistive load, ESR>1mΩ 1,000 µF Max Units 1 Nom Max Units 6 ADC ADC __________________________ 1 Total start-up time is the sum of the turn-on delay time and the rise time 4.3 Protection Specifications Parameter Conditions/Description Min Nom Output Overcurrent Protection Type Auto-Restart Inception Point Output Short Circuit Current (RMS value) 105 ROUT<0.01Ω 150 180 %IOUT 1 5 A Output Overvoltage Protection Type Threshold 4.4 Auto-Restart IOUT=IOUT MAX, room temperature 112 115 118 %VO.SET Min Nom Max Units Feature Specifications Parameter Conditions/Description Enable (ON/OFF pin) Positive (enables the output when ON/OFF pin is open or pulled high) ON/OFF Logic ON/OFF High Input Voltage POL is ON ON/OFF High Input Current POL is ON ON/OFF Low Input Voltage POL is OFF ON/OFF Low Input Current POL is OFF ZD-02094 Rev 1.1, 25-Mar-09 www.power-one.com 2.4 -0.3 Page 4 of 12 N/A 5.5 VDC 1.0 mADC 0.4 VDC 0.55 µADC YEV09T06 6A DC-DC POL Converter 4.5V to 13.8V Input 0.59V to 5.1V Output Data Sheet 5. 5.1 Typical Performance Characteristics Efficiency Curves 85 90 80 85 Efficiency, % Efficiency, % 75 70 65 Vin = 5V 60 Vin = 12V 80 75 70 55 Vin = 13.8V Vin = 10V 50 Vin = 13.8V 65 0 1 2 3 4 5 6 0 1 Output Current, A 2 3 4 5 6 Output Current, A Figure 2. Efficiency vs. Load. Vout=0.6V Figure 4. Efficiency vs. Load. Vout=2.5 85 100 80 95 75 Efficiency, % Efficiency, % Vin = 12V 70 65 90 85 Vin = 4.5V Vin = 12V 80 60 Vin = 10V Vin = 12V Vin = 13.8V Vin = 13.8V 55 75 0 1 2 3 4 5 6 Output Current, A 1 2 3 4 Output Current, A Figure 3. Efficiency vs. Load. Vout=1.2V ZD-02094 Rev 1.1, 25-Mar-09 0 www.power-one.com Figure 5. Efficiency vs. Load. Vout=3.3V Page 5 of 12 5 6 YEV09T06 6A DC-DC POL Converter 4.5V to 13.8V Input 0.59V to 5.1V Output Data Sheet 100 Efficiency, % 95 90 85 Vin = 6.5V 80 Vin = 12V Vin = 13.8V 75 0 1 2 3 4 5 6 Output Current, A Figure 6. Efficiency vs. Load. Vout=5.0V 5.2 Turn-On Characteristics Figure 7. Typical Start-Up Using Remote On/Off (Vo = 0.6Vdc, Io=6A). Ch1 – Vout, Ch2 – ON/OFF, Ch3 – Iout. Scale=10A/div ZD-02094 Rev 1.1, 25-Mar-09 www.power-one.com Figure 8. Typical Start-Up Using Remote On/Off (Vo = 3.3 Vdc, Io=6A). Ch1 – Vout, Ch2 – ON/OFF, Ch3 – Iout. Scale=10A/div Figure 9. Typical Start-Up with application of Vin (Vo = 0.6Vdc, Io = 6A). Ch1 – Vout, Ch3 – Iout, Ch4 – Vin. Scale=10A/div Page 6 of 12 YEV09T06 6A DC-DC POL Converter 4.5V to 13.8V Input 0.59V to 5.1V Output Data Sheet Figure 10. Typical Start-Up with application of Vin (Vo = 3.3Vdc, Io = 6A). Ch1 – Vout, Ch3 – Iout, Ch4 – Vin. Scale=10A/div 5.3 Figure 12. Transient Response to Dynamic Load Change from 50% to 100% of full load (Vin=12V, Vo=3.3Vdc). Ch3 – Iout. Scale=10A/div Transient Response Figure 11. Transient Response to Dynamic Load Change from 50% to 100% of full load (Vin=12V, Vo=0.6Vdc). Ch3 – Iout. Scale=10A/div ZD-02094 Rev 1.1, 25-Mar-09 www.power-one.com Figure 13. Transient Response to Dynamic Load Change from 50% to 100% of full load (Vin=12V, Vo=5.0Vdc). Ch3 – Iout. Scale=10A/div Page 7 of 12 YEV09T06 6A DC-DC POL Converter 4.5V to 13.8V Input 0.59V to 5.1V Output Data Sheet 6. Application Information 6.1 where: Input and Output Impedance The POL converter should be connected to the DC power source via low impedance. In many applications, the inductance associated with the distribution from the power source to the input of the converter can affect the stability of the converter. Internally, the converter includes 4.7μF (low ESR ceramics) of input capacitance which eliminates the need for external input capacitance. However, if the distribution of the input voltage to the POL converter contains high inductance, it is recommended to add a 100μF decoupling capacitor placed as close as possible to the converter input pins. A low-ESR tantalum or POS capacitor connected across the input pins help ensuring stability of the POL converter and reduce input ripple voltage. VOUT = Desired (trimmed) value of output voltage V RTRIM = Required value of the trim resistor in kΩ If the RTRIM is not used, the output voltage of the POL converter will be 0.591V. Note that the trim resistor tolerance directly affects the output voltage accuracy. It is recommended to use ±0.1% trim resistors to meet the output voltage setpoint accuracy specified in p. 4.2. Table 1. Trim Resistor Values V0UT, V Calculated RTRIM, kΩ Standard Value of 0.1% Resistor, kΩ 0.8 1.2 1.5 1.8 2.5 3.3 5.0 5.65 1.94 1.3 0.98 0.62 0.44 0.27 5.62 1.93 1.30 0.976 0.619 0.437 0.267 A 22μF ceramic output capacitor is recommended to improve output ripple and dynamic response. It is important to keep low resistance and low inductance of PCB traces for connecting load to the output pins of the converter in order to maintain good load regulation. 6.2 Output Voltage Programming The output voltage can be programmed from 0.59V to 5.1V by connecting an external resistor RTRIM between TRIM pin (Pin 5) and GND pin (Pin 3), as shown in Figure 14. YEV09T06 2 4 1 5 ON /OFF ON/OFF (Pin 1) The ON/OFF pin is used to turn the POL converter ON or OFF remotely by a signal from a system controller. For positive logic, the POL converter is ON when the ON/OFF pin is at a logic high (2.4V min) or left open. The POL converter is OFF when the ON/OFF pin is at a logic low (0.4V max) or connected to GND. The ON/OFF pin should be controlled with an open collector transistor as shown in Figure 15. VOUT VIN 6.3 TRIM Rload R TRIM INPUT VOLTAGE 2 3 1 GND Figure 14. Programming Output Voltage With A Resistor The trim resistor RTRIM for a desired output voltage can be calculated using the following equation: RTRIM YEV09T06 VIN ON/OFF Internal Enable Circuit www.power-one.com 4 TRIM 5 Rload CONTROL INPUT 4.32k 3 RTRIM GND Figure 15. Circuit Configuration For ON/OFF Function 1.182 , kΩ VOUT 0.591 ZD-02094 Rev 1.1, 25-Mar-09 VOUT Page 8 of 12 YEV09T06 6A DC-DC POL Converter 4.5V to 13.8V Input 0.59V to 5.1V Output Data Sheet 6.4 Protections 6.4.1 Input Undervoltage Lockout The POL converter will shut down when the input voltage drops below a predetermined voltage. It will start automatically when the input voltage exceeds the specified threshold. 6.4.2 Output Overcurrent Protection The POL converter is protected against overcurrent and short circuit conditions. Upon sensing an overcurrent condition, the POL converter will enter hiccup mode of operation. Once the overload or short circuit condition is removed, the POL converter will automatically restart and Vout will return to its nominal value. 6.4.3 Output Overvoltage Protection The POL converter is protected against overvoltage on the output. If the output voltage is higher than 115% of its nominal value set by the RTRIM, the high side MOSFET will be immediately turned off and the low side MOSFET will be turned on. The POL converter will remain in the state until the output voltage reduces below 115% of its nominal value. At that point the POL converter will automatically restart. 7. 7.1 Characterization Ripple and Noise The output voltage ripple and input reflected ripple current waveforms are measured using the test setup shown in Figure 16. 1 H V source CIN 100 F tantalum +2x10 F ceramic YEV09T06 DC/DC Converter 22 F ceramic capacitor Vout 8. Safety The YEV09T06 POL converters do not provide isolation from input to output. The input devices powering YEV09T06 must provide relevant isolation requirements according to all IEC60950 based standards. Nevertheless, if the system using the converter needs to receive safety agency approval, certain rules must be followed in the design of the system. In particular, all of the creepage and clearance requirements of the end-use safety requirements must be observed. These requirements are included in UL60950 - CSA6095000 and EN60950, although specific applications may have other or additional requirements. The YEV09T06 POL converters have no internal fuse. If required, the external fuse needs to be provided to protect the converter from catastrophic failure. Refer to the “Input Fuse Selection for DC/DC converters” application note on www.power-one.com for proper selection of the input fuse. Both input traces and the chassis ground trace (if applicable) must be capable of conducting a current of 1.5 times the value of the fuse without opening. To comply with safety agencies’ requirements, a recognized fuse must be used in series with the input line. The fuse must not be placed in the grounded input line. Abnormal and component failure tests were conducted with the POL input protected by a fast-acting 20A fuse. If a fuse rated greater than 20A is used, additional testing may be required. The maximum DC voltage between any two pins is Vin under all operating conditions. In order for the output of the YEV09T06 POL converter to be considered as SELV (Safety Extra Low Voltage), according to all IEC60950 based standards, the input to the POL needs to be supplied by an isolated secondary source providing a SELV also. Figure 16. Test Setup For Measuring Input Reflected-Ripple Current And Output Voltage Ripple ZD-02094 Rev 1.1, 25-Mar-09 www.power-one.com Page 9 of 12 YEV09T06 6A DC-DC POL Converter 4.5V to 13.8V Input 0.59V to 5.1V Output Data Sheet 9. Pin Assignments and Description Pin Name Pin Number Pin Type Buffer Type Pin Description Notes ON/OFF 1 I PU Enable Pull high to turn ON the POL VIN 2 P Input Voltage GND 3 P Power Ground VOUT 4 P Output Voltage TRIM 5 I A Output Voltage Trim Connect a high accuracy resistor between TRIM and GMD pins to set the output voltage Legend: I=input, O=output, I/O=input/output, P=power, A=analog, PU=internal pull-up ZD-02094 Rev 1.1, 25-Mar-09 www.power-one.com Page 10 of 12 YEV09T06 6A DC-DC POL Converter 4.5V to 13.8V Input 0.59V to 5.1V Output Data Sheet 10. Mechanical Drawings All Dimensions are in inches Tolerances: X.XX: 0.02” X.XXX: 0.01” Figure 17. Mechanical Drawing Figure 18. Recommended Footprint – Top View Notes: 1. NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not designed, intended for use in, or authorized for use as critical components in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written consent of the respective divisional president of Power-One, Inc. 2. TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on ZD-02094 Rev 1.1, 25-Mar-09 www.power-one.com Page 11 of 12 YEV09T06 6A DC-DC POL Converter 4.5V to 13.8V Input 0.59V to 5.1V Output Data Sheet the date manufactured. Specifications are subject to change without notice. ZD-02094 Rev 1.1, 25-Mar-09 www.power-one.com Page 12 of 12