OKL-T/1-W12 Series www.murata-ps.com Programmable Output 1-Amp iLGA SMT PoLs PRODUCT OVERVIEW Typical unit The OKL-T/1-W12 series are non-isolated Pointof-Load (PoL) DC/DC power converters for embedded applications. Featuring inspectable Land Grid Array (iLGA) format, the OKL-T/1-W12 measures only 0.488 x 0.488 x 0.18 inches max. (12.4 x 12.4 x 4.57 mm max.). The wide input range is 2.9 to 14 Volts DC. The maximum output current is 1 Amp. Based on fixedfrequency synchronous buck converter switching topology, the high power conversion efficient Point of Load (PoL) module features programmable output voltage and On/Off control. These converters also include under voltage lock out (UVLO), output short circuit protection, and over-current protections. These units are designed to meet all standard UL/ EN/IEC 60950-1 safety certifications (2nd Edition) and RoHS-6 hazardous substance compliance. FEATURES ■ iLGA inspectable Land Grid Array ■ 2.9-14Vdc input voltage range ■ Programmable output voltage from 0.9-5.5Vdc ■ Drives up to 200 μF ceramic capacitive loads ■ High power conversion efficiency at 90% ■ Outstanding thermal derating performance ■ Short circuit and over current protection ■ On/Off control ■ UL/EN/IEC 60950-1 safety (pending) ■ RoHS-6 hazardous substance compliance Contents Description, Connection Diagram, Photograph Ordering Guide, Product Label Mechanical Specifications, Input/Output Pinout Detailed Electrical Specifications Output Voltage Adjustment, Application Notes Performance Data and Oscillograms Tape and Reel Information Page 1 2 3 5 6 9 16 Connection Diagram +Vin F1 On/Off Control +Vout t4XJUDIJOH Controller t'JMUFST t$VSSFOU4FOTF External DC Power Source Trim Open = On Closed = Off (Positive On/Off) Reference and Error Amplifier Common Common Figure 1. OKL-T/1-W12 Note: Murata Power Solutions strongly recommends an external input fuse, F1. See specifications. For full details go to www.murata-ps.com/rohs www.murata-ps.com email: [email protected] 04 Mar 2011 MDC_OKL-T/1-W12 Series.A02 Page 1 of 16 OKL-T/1-W12 Series Programmable Output 1-Amp iLGA SMT PoLs Performance Specifications and Ordering Guide ORDERING GUIDE Model Number Output Input Package - Pinout P83 Efficiency On/Off Regulation (max.) Vout Iout (Amps, Power R/N (mV p-p) Vin nom. Range Iin, no load Iin, full load Case C83 Polarity (Volts) ➀ max.) (Watts) Max. ➃ (Volts) (Volts) (mA) ➃ (Amps) ➁ Min. Typ. inches (mm) Line Load OKL-T/1-W12P-C 0.9-5.5 1 5 10 ±0.25% ±0.25% 12 2.9-14 10 0.46 88.7% 90% Pos. 0.488x0.488x0.18 max 12.4x12.4x4.57 max OKL-T/1-W12N-C 0.9-5.5 1 5 10 ±0.25% ±0.25% 12 2.9-14 10 0.46 88.7% 90% Neg. 0.488x0.488x0.18 max 12.4x12.4x4.57 max ➀ ➁ The output range is limited by Vin. (Vin x 0.8) ≥ Vout. All specifications are at nominal line voltage, Vout=nominal (5V for W12 models) and full load, +25 deg.C. unless otherwise noted. ➂ Use adequate ground plane and copper thickness adjacent to the converter. fRipple and Noise (R/N) and no-load input current are shown at Vout=1V. See specs for details. Output capacitors are 10 μF ceramic. Input cap is 22 μF. See detailed specifications. I/O caps are necessary for our test equipment and may not be needed for your application. PART NUMBER STRUCTURE OK L - T / 1 - W12 N - C Okami Non-isolated PoL RoHS Hazardous Substance Compliance C = RoHS-6 (does not claim EU RoHS exemption 7b – lead in solder) LGA Surface Mount On/Off Polarity P = Positive Polarity N = Negative Polarity Trimmable Output Voltage Range 0.591–5.5Vdc Input Voltage Range 2.9–14Vdc Maximum Rated Output Current in Amps Product Label Because of the small size of these products, the product label contains a character-reduced code to indicate the model number and manufacturing date code. Not all items on the label are always used. Please note that the label differs from the product photograph. Here is the layout of the label: Model Number Product Code OKL-T/1-W12P-C L01101 OKL-T/1-W12N-C L00101 The manufacturing date code is four characters: Mfg. date code XXXXXX Product code YMDX Rev. Revision level Figure 2. Label Artwork Layout The label contains three rows of information: First character – Last digit of manufacturing year, example 2009 Second character – Month code (1 through 9 and O through D) Third character – Day code (1 through 9 = 1 to 9, 10=O and 11 through 31 = A through Z) Fourth character – Manufacturing information First row – Murata Power Solutions logo Second row – Model number product code (see table) Third row – Manufacturing date code and revision level www.murata-ps.com email: [email protected] 04 Mar 2011 MDC_OKL-T/1-W12 Series.A02 Page 2 of 16 OKL-T/1-W12 Series Programmable Output 1-Amp iLGA SMT PoLs MECHANICAL SPECIFICATIONS Vacuum pickup nozzle location 12.4 0.49 4.6 0.18 MAX 5.0 0.20 5.0 0.20 12.4 0.49 Nozzle dia. 4.00 .157 typ. Top View Side View Bottom View SMT (iLGA Surface Mount Package) Pinouts and Pin Locations CL 3.43 0.135 1.14 0.045 3 CL 2 Gnd 4 3.43 0.135 4.57 0.180 5 11 6 On/Off 4.06 0.160 TYP NC 1 NC Gnd NC Gnd NC 10 Trim1 NC 12 2.29 0.090 INPUT/OUTPUT CONNECTIONS Solder Pad 1 2 3 4 5 6 7 8 9 10 11 12 Vin Vout1 12.40 0.488 REF 1.78 0.070 TYP 7 CL 8 2.29 0.090 9 4.57 0.180 2.29 0.090 CL 1.02 0.040 TYP Function On/Off Control * Vin Ground Vout1 No Connection Trim1 Ground No Connection No Connection No Connection Ground No Connection *The Remote On/Off can be provided with either positive (P suffix) or negative (N suffix) polarity. Dimensions are in inches (mm shown for ref. only). Third Angle Projection Tolerances (unless otherwise specified): .XX ± 0.02 (0.5) .XXX ± 0.010 (0.25) Angles ± 1˚ Figure 3. OKL-T/1-W12 Mechanical Outline Components are shown for reference only. www.murata-ps.com email: [email protected] 04 Mar 2011 MDC_OKL-T/1-W12 Series.A02 Page 3 of 16 OKL-T/1-W12 Series Programmable Output 1-Amp iLGA SMT PoLs MECHANICAL SPECIFICATIONS, Continued Recommended Footprint (Through the Board) 12.7 0.50 4.57 0.180 3.43 0.135 0.070-0.080 [1.78-2.03mm] x 0.160-0.170 [4.06-4.32mm] 3 PLACES 3 1.14 0.045 4 Vout1 2 Vin 4.57 0.180 12.7 0.50 1 2.29 0.090 On/Off 10 9 Gnd NC NC NC 8 Gnd 7 NC NC 5 Gnd 11 Trim1 3.43 0.135 CL 4.57 0.180 6 12 0.040-0.050 [1.02-1.27mm] SQUARE PAD (9 PLS) 2.29 0.090 4.57 0.180 CL 2.29 0.090 www.murata-ps.com email: [email protected] 04 Mar 2011 MDC_OKL-T/1-W12 Series.A02 Page 4 of 16 OKL-T/1-W12 Series Programmable Output 1-Amp iLGA SMT PoLs Performance and Functional Specifications Environmental See Note 1 Calculated MTBF (hours) Telecordia method (4a) Calculated MTBF (hours) MIL-HDBK-217N2 method (4b) Input Input Voltage Range Isolation Start-Up Voltage Undervoltage Shutdown (see Note 15) Overvoltage Shutdown Reflected (Back) Ripple Current (Note 2) Internal Input Filter Type Recommended External Fuse Reverse Polarity Protection See Ordering Guide and Note 7. Not isolated 2.45 V 2.4 V None 49 mA pk-pk Capacitive 2A None, install external fuse Input Current: Full Load Conditions Inrush Transient Shutdown Mode (Off, UV, OT) Output in Short Circuit Low Line (Vin=Vmin) See Ordering Guide 0.16 A2Sec. 1 mA 5 mA 0.78 A. Remote On/Off Control (Note 5) Negative Logic OKL-T/1-W12 TBC TBC Operating Temperature Range (Ambient, vertical mount) See derating curves -40 to +85 °C. with derating (Note 9) Storage Temperature Range -55 to +125 °C. Thermal Protection/Shutdown None Relative Humidity to 85%/+85 °C., non-condensing Physical Outline Dimensions Weight Safety See Mechanical Specifications 0.024 ounces (0.67 grams) Designed to meet UL/cUL 60950-1, CSAC22.2 No. 60950-1, IEC/EN 60950-1, 2nd Edition Restriction of Hazardous Substances RoHS-6 (does not claim EU RoHS exemption 7b–lead in solder) Absolute Maximum Ratings ON = Open pin or -0.2V to +0.3V. max. OFF = +1.2V min. to +Vin max. ON = Open pin (internally pulled up) or +1.2V to +Vin max. OFF = -0.3V to +0.8V. max. or ground 0.250 mA Positive Logic Current Input Voltage (Continuous or transient) On/Off Control Input Reverse Polarity Protection Output Current (Note 7) 0 V. to +15 Volts max. 0 V. min. to +Vin max. None, install external fuse Current-limited. Devices can withstand a sustained short circuit without damage. The outputs are not intended to accept appreciable reverse current. Storage Temperature -55 to +125 ˚C. Lead Temperature See soldering specifications Absolute maximums are stress ratings. Exposure of devices to greater than any of any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those listed in the Performance/Functional Specifications Table is not implied nor recommended. Output Output Power Output Voltage Range Minimum Loading Accuracy (50% load, untrimmed) Voltage Output Range (Note 13) Overvoltage Protection (Note 16) Temperature Coefficient Ripple/Noise (20 MHz bandwidth) Line/Load Regulation Efficiency 5.15W max. See Ordering Guide No minimum load ±3 % of Vnominal See Ordering Guide None ±0.02% per °C of Vout range See Ordering Guide and note 8 See Ordering Guide and note 10 See Ordering Guide Maximum Capacitive Loading (Note 14) Cap-ESR=0.001 to 0.01 Ohms Cap-ESR >0.01 Ohms 200 μF 1000 μF Current Limit Inception (Note 6) (98% of Vout setting, after warm up) 2.4 Amps Short Circuit Mode Short Circuit Current Output Protection Method Short Circuit Duration Prebias Startup Specification Notes: (1) All models are tested and specified with external 10μF ceramic output capacitors and a 22 μF external input capacitor. All capacitors are low ESR types. These capacitors are necessary to accommodate our test equipment and may not be required to achieve specified performance in your applications. However, Murata Power Solutions recommends installation of these capacitors. All models are stable and regulate within spec under no-load conditions. Min. cap = 0 μF 10 mA Hiccup autorecovery upon overload removal. (Note 17) Continuous, no damage (output shorted to ground) Converter will start up if the external output voltage is less than Vnominal. Dynamic Characteristics Dynamic Load Response (50-100% load step, di/dt=1A/μSec) Peak Deviation 200μSec max. to within ±2% of final value (Note 1) 150 mV Start-Up Time (Vin on or On/Off to Vout regulated) Switching Frequency 3.4 mSec for Vout=nominal (Vin On) 3.5 mSec for Vout=nominal (Remote On/Off) Specifications are typical at +25 °C, Vin=nominal (+12V.), Vout=nominal (+5V), full load, external caps and natural convection unless otherwise indicated. Extended tests at full power must supply substantial forced airflow. (2) Input Back Ripple Current is tested and specified over a 5 Hz to 20 MHz bandwidth. Input filtering is Cin=2 x 100 μF ceramic, Cbus=1000 μF electrolytic, Lbus=1 μH. (3) Note that Maximum Power Derating curves indicate an average current at nominal input voltage. At higher temperatures and/or lower airflow, the DC/DC converter will tolerate brief full current outputs if the total RMS current over time does not exceed the Derating curve. (4a) Mean Time Before Failure is calculated using the Telcordia (Belcore) SR-332 Method 1, Case 3, ground fixed conditions, Tpcboard=+25 ˚C, full output load, natural air convection. (4b) Mean Time Before Failure is calculated using the MIL-HDBK-217N2 method, ground benign, +25ºC., full output load, natural convection. (5) The On/Off Control Input should use either a switch or an open collector/open drain transistor referenced to -Input Common. A logic gate may also be used by applying appropriate external voltages which do not exceed +Vin. (6) Short circuit shutdown begins when the output voltage degrades approximately 2% from the selected setting. 800 KHz www.murata-ps.com email: [email protected] 04 Mar 2011 MDC_OKL-T/1-W12 Series.A02 Page 5 of 16 OKL-T/1-W12 Series Programmable Output 1-Amp iLGA SMT PoLs Specification Notes, Cont.: APPLICATION NOTES (7) Please observe the voltage input and output specifications in the Voltage Range Graph on page 7. (8) Output noise may be further reduced by adding an external filter. At zero output current, the output may contain low frequency components which exceed the ripple specification. The output may be operated indefinitely with no load. Due to the minimum duty cycle of the controller, operation below Vout=1.8V. with Vin at or above 12V. may cause pulse skipping. This results in higher output ripple which may require additional external output filtering. (9) All models are fully operational and meet published specifications, including “cold start” at –40˚ C. (10) Regulation specifications describe the deviation as the line input voltage or output load current is varied from a nominal midpoint value to either extreme. (11) Other input or output voltage ranges will be reviewed under scheduled quantity special order. (12) Maximum PC board temperature is measured with the sensor in the center of the converter. (13) Do not exceed maximum power specifications when adjusting the output trim. (14) The maximum output capacitive loads depend on the the Equivalent Series Resistance (ESR) of the external output capacitor and, to a lesser extent, the distance and series impedance to the load. Larger caps will reduce output noise but may change the transient response. Newer ceramic caps with very low ESR may require lower capacitor values to avoid instability. Thoroughly test your capacitors in the application. Please refer to the Output Capacitive Load Application Note. (15) Do not allow the input voltage to degrade lower than the input undervoltage shutdown voltage at all times. Otherwise, you risk having the converter turn off. The undervoltage shutdown is not latching and will attempt to recover when the input is brought back into normal operating range. (16) The outputs are not intended to sink appreciable reverse current. (17) “Hiccup” overcurrent operation repeatedly attempts to restart the converter with a brief, full-current output. If the overcurrent condition still exists, the restart current will be removed and then tried again. This short current pulse prevents overheating and damaging the converter. Once the fault is removed, the converter immediately recovers normal operation. Output Voltage Adustment The output voltage may be adjusted over a limited range by connecting an external trim resistor (Rtrim) between the Trim pin and Ground. The Rtrim resistor must be a 1/10 Watt precision metal film type, ±0.5% accuracy or better with low temperature coefficient, ±100 ppm/°C. or better. Mount the resistor close to the converter with very short leads or use a surface mount trim resistor. In the tables below, the calculated resistance is given. Do not exceed the specified limits of the output voltage or the converter’s maximum power rating when applying these resistors. Also, avoid high noise at the Trim input. However, to prevent instability, you should never connect any capacitors to Trim. Input Fusing Certain applications and/or safety agencies may require fuses at the inputs of power conversion components. Fuses should also be used when there is the possibility of sustained input voltage reversal which is not currentlimited. For greatest safety, we recommend a fast blow fuse installed in the ungrounded input supply line. The installer must observe all relevant safety standards and regulations. For safety agency approvals, install the converter in compliance with the end-user safety standard, i.e. IEC/EN/UL 60950-1. Input Under-Voltage Shutdown and Start-Up Threshold Under normal start-up conditions, converters will not begin to regulate properly until the ramping-up input voltage exceeds and remains at the Start-Up Threshold Voltage (see Specifications). Once operating, converters will not turn off until the input voltage drops below the Under-Voltage Shutdown Limit. Subsequent restart will not occur until the input voltage rises again above the Start-Up Threshold. This built-in hysteresis prevents any unstable on/off operation at a single input voltage. Users should be aware however of input sources near the Under-Voltage Shutdown whose voltage decays as input current is consumed (such as capacitor inputs), the converter shuts off and then restarts as the external capacitor recharges. Such situations could oscillate. To prevent this, make sure the operating input voltage is well above the UV Shutdown voltage AT ALL TIMES. Start-Up Time Assuming that the output current is set at the rated maximum, the Vin to Vout Start-Up Time (see Specifications) is the time interval between the point when the ramping input voltage crosses the Start-Up Threshold and the fully loaded regulated output voltage enters and remains within its specified accuracy band. Actual measured times will vary with input source impedance, external input capacitance, input voltage slew rate and final value of the input voltage as it appears at the converter. These converters include a soft start circuit to moderate the duty cycle of its PWM controller at power up, thereby limiting the input inrush current. OKL-T/1-W12 Output Voltage Calculated Rtrim (KΩ) 5.0 V. 2.18 3.3 V. 3.721 2.5 V. 5.576 1.8 V. 9.889 1.5 V. 14.793 1.2 V. 29.394 1.0 V. 85.238 0.895 V. ∞ (open) The On/Off Remote Control interval from On command to Vout regulated assumes that the converter already has its input voltage stabilized above the Start-Up Threshold before the On command. The interval is measured from the On command until the output enters and remains within its specified accuracy band. The specification assumes that the output is fully loaded at maximum rated current. Similar conditions apply to the On to Vout regulated specification such as external load capacitance and soft start circuitry. Resistor Trim Equation, OKL-T/1-W12 models: RTRIM (k:) = 10 ÷ ((Vout ÷ 0.895) –1) where Vout = desired output voltage Recommended Input Filtering The user must assure that the input source has low AC impedance to provide dynamic stability and that the input supply has little or no inductive content, including long distributed wiring to a remote power supply. The converter will operate with no additional external capacitance if these conditions are met. www.murata-ps.com email: [email protected] 04 Mar 2011 MDC_OKL-T/1-W12 Series.A02 Page 6 of 16 OKL-T/1-W12 Series Programmable Output 1-Amp iLGA SMT PoLs For best performance, we recommend installing a low-ESR capacitor immediately adjacent to the converter’s input terminals. The capacitor should be a ceramic type such as the Murata GRM32 series or a polymer type. Initial suggested capacitor values are 10 to 22 μF, rated at twice the expected maximum input voltage. Make sure that the input terminals do not go below the undervoltage shutdown voltage at all times. More input bulk capacitance may be added in parallel (either electrolytic or tantalum) if needed. COPPER STRIP +OUTPUT C1 Recommended Output Filtering The converter will achieve its rated output ripple and noise with no additional external capacitor. However, the user may install more external output capacitance to reduce the ripple even further or for improved dynamic response. Again, use low-ESR ceramic (Murata GRM32 series) or polymer capacitors. Initial values of 10 to 47 μF may be tried, either single or multiple capacitors in parallel. Mount these close to the converter. Measure the output ripple under your load conditions. Use only as much capacitance as required to achieve your ripple and noise objectives. Excessive capacitance can make step load recovery sluggish or possibly introduce instability. Do not exceed the maximum rated output capacitance listed in the specifications. Input Ripple Current and Output Noise All models in this converter series are tested and specified for input reflected ripple current and output noise using designated external input/ output components, circuits and layout as shown in the figures below. The Cbus and Lbus components simulate a typical DC voltage bus. Please note that the values of Cin, Lbus and Cbus will vary according to the specific converter model. TO OSCILLOSCOPE CURRENT PROBE VIN LBUS CBUS SCOPE RLOAD -OUTPUT COPPER STRIP C1 = 1μF CERAMIC C2 = 10μF CERAMIC LOAD 2-3 INCHES (51-76mm) FROM MODULE Figure 5: Measuring Output Ripple and Noise (PARD) Minimum Output Loading Requirements All models regulate within specification and are stable under no load to full load conditions. Operation under no load might however slightly increase output ripple and noise. Temperature Derating Curves The graphs in the next section illustrate typical operation under a variety of conditions. The Derating curves show the maximum continuous ambient air temperature and decreasing maximum output current which is acceptable under increasing forced airflow measured in Linear Feet per Minute (“LFM”). Note that these are AVERAGE measurements. The converter will accept brief increases in current or reduced airflow as long as the average is not exceeded. Note that the temperatures are of the ambient airflow, not the converter itself which is obviously running at higher temperature than the outside air. Also note that very low flow rates (below about 25 LFM) are similar to “natural convection”, that is, not using fan-forced airflow. +INPUT + – + – C2 CIN Murata Power Solutions makes Characterization measurements in a closed cycle wind tunnel with calibrated airflow. We use both thermocouples and an infrared camera system to observe thermal performance. -INPUT CIN = 2 x 100μF, ESR < 700mΩ @ 100kHz CBUS = 1000μF, ESR < 100mΩ @ 100kHz LBUS = 1μH CAUTION: These graphs are all collected at slightly above Sea Level altitude. Be sure to reduce the derating for higher density altitude. Figure 4: Measuring Input Ripple Current In figure 5, the two copper strips simulate real-world printed circuit impedances between the power supply and its load. In order to minimize circuit errors and standardize tests between units, scope measurements should be made using BNC connectors or the probe ground should not exceed one half inch and soldered directly to the test circuit. www.murata-ps.com email: [email protected] 04 Mar 2011 MDC_OKL-T/1-W12 Series.A02 Page 7 of 16 OKL-T/1-W12 Series Programmable Output 1-Amp iLGA SMT PoLs Output Current Limiting Current limiting inception is defined as the point at which full power falls below the rated tolerance. See the Performance/Functional Specifications. Note particularly that the output current may briefly rise above its rated value in normal operation as long as the average output power is not exceeded. This enhances reliability and continued operation of your application. If the output current is too high, the converter will enter the short circuit condition. Soldering Guidelines Murata Power Solutions recommends the specifications below when installing these converters. These specifications vary depending on the solder type. Exceeding these specifications may cause damage to the product. Your production environment may differ therefore please thoroughly review these guidelines with your process engineers. Reflow Solder Operations for surface-mount products (SMT) For Sn/Ag/Cu based solders: Output Short Circuit Condition When a converter is in current-limit mode, the output voltage will drop as the output current demand increases. If the output voltage drops too low (approximately 98% of nominal output voltage for most models), the magnetically coupled voltage used to develop primary side voltages will also drop, thereby shutting down the PWM controller. Following a time-out period, the PWM will restart, causing the output voltage to begin ramping up to its appropriate value. If the short-circuit condition persists, another shutdown cycle will initiate. This rapid on/off cycling is called “hiccup mode”. The hiccup cycling reduces the average output current, thereby preventing excessive internal temperatures and/or component damage. A short circuit can be tolerated indefinitely. The “hiccup” system differs from older latching short circuit systems because you do not have to power down the converter to make it restart. The system will automatically restore operation as soon as the short circuit condition is removed. Preheat Temperature Less than 1 ºC. per second Time over Liquidus 45 to 75 seconds Maximum Peak Temperature 260 ºC. Cooling Rate Less than 3 ºC. per second For Sn/Pb based solders: Preheat Temperature Less than 1 ºC. per second Time over Liquidus 60 to 75 seconds Maximum Peak Temperature 235 ºC. Cooling Rate Less than 3 ºC. per second Recommended Lead-free Solder Reflow Profile Peak Temp. 235-260° C 250 Positive polarity models are enabled when the On/Off pin is left open or is pulled high to +Vin with respect to –Vin. An internal bias current causes the open pin to rise to +Vin. Positive-polarity devices are disabled when the On/Off is grounded or brought to within a low voltage (see Specifications) with respect to –Vin. Negative polarity devices are on (enabled) when the On/Off is open or brought to within a low voltage (see Specifications) with respect to –Vin. The device is off (disabled) when the On/Off is pulled high with respect to –Vin (see specifications). Temperature (°C) 200 Remote On/Off Control The remote On/Off Control can be ordered with either polarity. Please refer to the Connection Diagram on page 1 for On/Off connections. Reflow Zone 150 Soaking Zone time above 217° C 45-75 sec 120 sec max 100 <1.5° C/sec Preheating Zone 50 240 sec max 0 0 30 60 90 120 150 180 210 240 270 300 Time (sec) High trace = normal upper limit Low trace - normal lower limit Dynamic control of the On/Off function should be able to sink appropriate signal current when brought low and withstand appropriate voltage when brought high. Be aware too that there is a finite time in milliseconds (see Specifications) between the time of On/Off Control activation and stable, regulated output. This time will vary slightly with output load type and current and input conditions. Output Capacitive Load These converters do not require external capacitance added to achieve rated specifications. Users should only consider adding capacitance to reduce switching noise and/or to handle spike current load steps. Install only enough capacitance to achieve noise objectives. Excess external capacitance may cause regulation problems, degraded transient response and possible oscillation or instability. www.murata-ps.com email: [email protected] 04 Mar 2011 MDC_OKL-T/1-W12 Series.A02 Page 8 of 16 OKL-T/1-W12 Series Programmable Output 1-Amp iLGA SMT PoLs OKL-T/1-W12 PERFORMANCE DATA AND OSCILLOGRAMS Efficiency vs. Line Voltage and Load Current @Ta = +25 °C (Vout = 5V) Maximum Current Temperature Derating at Sea Level (Vin = 6V, Vout = 5V, airflow is from pad 10 to pad 1) 120 1.20 1.10 100 1.00 65 LFM 0.90 Output Current (Amps) Efficiency (%) 80 VIN = 6.5V 60 VIN = 12V VIN = 14V 40 0.80 0.70 0.60 0.50 0.40 0.30 20 0.20 0.10 0 0 0.2 0.4 0.6 0.8 0.00 1 30 35 40 45 50 55 60 65 70 75 80 85 80 85 Ambient Temperature (ºC) Load Curre nt (Amps) Efficiency vs. Line Voltage and Load Current @Ta = +25 °C (Vout = 3.3V) Maximum Current Temperature Derating at Sea Level (Vin = 6.5V to 16V, airflow is from pad 10 to pad 1) 100 1.20 90 1.10 80 1.00 60 0.90 VIN = 12V 0.80 Output Current (Amps) Efficiency (%) 70 VIN = 3.9V VIN = 14V 50 40 30 65 LFM 0.70 0.60 0.50 0.40 0.30 20 0.20 10 0.10 0 0.00 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 30 35 40 45 50 55 60 65 70 75 Ambient Temperature (ºC) Load Curre nt (Amps) Output Ripple and Noise (Vin=4.5V, Vout=3.3V, Iout=1A, Cload=0, Ta=+25°C., ScopeBW=100MHz) Output Ripple and Noise (Vin=12V, Vout=3.3V, Iout=1A, Cload=0, Ta=+25°C., ScopeBW=100MHz) www.murata-ps.com email: [email protected] 04 Mar 2011 MDC_OKL-T/1-W12 Series.A02 Page 9 of 16 OKL-T/1-W12 Series Programmable Output 1-Amp iLGA SMT PoLs OKL-T/1-W12 PERFORMANCE DATA AND OSCILLOGRAMS Output Ripple and Noise (Vin=14V, Vout=3.3V, Iout=1A, Cload=0, Ta=+25°C., ScopeBW=100MHz) Step Load Transient Response (Vin=4.5V, Vout=3.3V, Cload=0, Iout=0.5A to 1A, Ta=+25°C.)Trace 2=Vout, 100 mV/div. Trace 4=Iout, 0.5A/div. Step Load Transient Response (Vin=4.5V, Vout=3.3V, Cload=0, Iout=1A to 0.5A, Ta=+25°C.) Trace 2=Vout, 100 mV/div. Trace 4=Iout, 0.5A/div. Step Load Transient Response (Vin=12V, Vout=3.3V, Cload=0, Iout=0.5A to 1A, Ta=+25°C.) Trace 2=Vout, 100 mV/div. Trace 4=Iout, 0.5A/div. Step Load Transient Response (Vin=12V, Vout=3.3V, Cload=0, Iout=1A to 0.5A, Ta=+25°C.) Trace 2=Vout, 100 mV/div. Trace 4=Iout, 0.5A/div. www.murata-ps.com email: [email protected] 04 Mar 2011 MDC_OKL-T/1-W12 Series.A02 Page 10 of 16 OKL-T/1-W12 Series Programmable Output 1-Amp iLGA SMT PoLs OKL-T/1-W12 PERFORMANCE DATA AND OSCILLOGRAMS Step Load Transient Response (Vin=14V, Vout=3.3V, Cload=0, Iout=0.5A to 1A, Ta=+25°C.) Trace 2=Vout, 100 mV/div. Trace 4=Iout, 0.5A/div. Step Load Transient Response (Vin=14V, Vout=3.3V, Cload=0, Iout=1A to 0.5A, Ta=+25°C.) Trace 2=Vout, 100 mV/div. Trace 4=Iout, 0.5A/div. Efficiency vs. Line Voltage and Load Current @Ta = +25 °C (Vout = 2.5V) Maximum Current Temperature Derating at Sea Level (Vin = 4V, Vout = 2.5V) 100 1.20 90 1.10 80 1.00 60 VIN = 3.5V 0.90 VIN = 12V 0.80 Output Current (Amps) Efficiency (%) 70 VIN = 14V 50 40 30 65 LFM 0.70 0.60 0.50 0.40 0.30 20 0.20 10 0.10 0 0 0.2 0.4 0.6 0.8 1 1.2 0.00 30 35 Load Curre nt (Amps) 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (ºC) Output Ripple and Noise (Vin=3.5V, Vout=2.5V, Iout=1A, Cload=0, Ta=+25°C., ScopeBW=100MHz) Output Ripple and Noise (Vin=12V, Vout=2.5V, Iout=1A, Cload=0, Ta=+25°C., ScopeBW=100MHz) www.murata-ps.com email: [email protected] 04 Mar 2011 MDC_OKL-T/1-W12 Series.A02 Page 11 of 16 OKL-T/1-W12 Series Programmable Output 1-Amp iLGA SMT PoLs OKL-T/1-W12 PERFORMANCE DATA AND OSCILLOGRAMS Output Ripple and Noise (Vin=14V, Vout=2.5V, Iout=1A, Cload=0, Ta=+25°C., ScopeBW=100MHz) Step Load Transient Response (Vin=3.5V, Vout=2.5V, Cload=0, Iout=0.5A to 1A, Ta=+25°C.) Trace 2=Vout, 100 mV/div. Trace 4=Iout, 0.5A/div. Step Load Transient Response (Vin=3.5V, Vout=2.5V, Cload=0, Iout=1A to 0.5A, Ta=+25°C.) Trace 2=Vout, 100 mV/div. Trace 4=Iout, 0.5A/div. Step Load Transient Response (Vin=12V, Vout=2.5V, Cload=0, Iout=0.5A to 1A, Ta=+25°C.) Trace 2=Vout, 100 mV/div. Trace 4=Iout, 0.5A/div. Step Load Transient Response (Vin=12V, Vout=2.5V, Cload=0, Iout=1A to 0.5A, Ta=+25°C.) Trace 2=Vout, 100 mV/div. Trace 4=Iout, 0.5A/div. www.murata-ps.com email: [email protected] 04 Mar 2011 MDC_OKL-T/1-W12 Series.A02 Page 12 of 16 OKL-T/1-W12 Series Programmable Output 1-Amp iLGA SMT PoLs OKL-T/1-W12 PERFORMANCE DATA AND OSCILLOGRAMS Step Load Transient Response (Vin=14V, Vout=2.5V, Cload=0, Iout=0.5A to 1A, Ta=+25°C.) Trace 2=Vout, 100 mV/div. Trace 4=Iout, 0.5A/div. Step Load Transient Response (Vin=14V, Vout=2.5V, Cload=0, Iout=1A to 0.5A, Ta=+25°C.) Trace 2=Vout, 100 mV/div. Trace 4=Iout, 0.5A/div. Efficiency vs. Line Voltage and Load Current @Ta = +25 °C (Vout = 1.8V) Maximum Current Temperature Derating at Sea Level (Vin = 4V, Vout = 1.8V) 100 1.20 90 1.10 80 1.00 60 Output Current (Amps) VIN = 2.9V VIN = 12V 50 VIN = 14V 40 30 0.80 0.70 0.60 0.50 0.40 0.30 20 0.20 10 0.10 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 0.00 1 30 35 40 45 50 55 60 65 70 75 80 85 Ambient Temperature (ºC) Load Curre nt (Amps) Efficiency vs. Line Voltage and Load Current @Ta = +25 °C (Vout = 1.5V) 100 90 80 70 Efficiency (%) Efficiency (%) 65 LFM 0.90 70 VIN = 2.9V 60 VIN = 12V 50 VIN = 14V 40 30 20 10 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Load C urre nt (Amps) www.murata-ps.com email: [email protected] 04 Mar 2011 MDC_OKL-T/1-W12 Series.A02 Page 13 of 16 OKL-T/1-W12 Series Programmable Output 1-Amp iLGA SMT PoLs OKL-T/1-W12 PERFORMANCE DATA AND OSCILLOGRAMS Output Ripple and Noise (Vin=2.6V, Vout=0.9V, Iout=1A, Cload=0, Ta=+25°C., ScopeBW=100MHz) Output Ripple and Noise (Vin=12V, Vout=0.9V, Iout=1A, Cload=0, Ta=+25°C., ScopeBW=100MHz) Output Ripple and Noise (Vin=14V, Vout=0.9V, Iout=1A, Cload=0, Ta=+25°C., ScopeBW=100MHz) Step Load Transient Response (Vin=2.6V, Vout=0.9V, Cload=0, Iout=0.5A to 1A, Ta=+25°C.) Trace 2=Vout, 100 mV/div. Trace 4=Iout, 0.5A/div. Step Load Transient Response (Vin=2.6V, Vout=0.9V, Cload=0, Iout=1A to 0.5A, Ta=+25°C.) Trace 2=Vout, 100 mV/div. Trace 4=Iout, 0.5A/div. www.murata-ps.com email: [email protected] 04 Mar 2011 MDC_OKL-T/1-W12 Series.A02 Page 14 of 16 OKL-T/1-W12 Series Programmable Output 1-Amp iLGA SMT PoLs OKL-T/1-W12 PERFORMANCE DATA AND OSCILLOGRAMS Step Load Transient Response (Vin=12V, Vout=0.9V, Cload=0, Iout=0.5A to 1A, Ta=+25°C.) Trace 2=Vout, 100 mV/div. Trace 4=Iout, 0.5A/div. Step Load Transient Response (Vin=12V, Vout=0.9V, Cload=0, Iout=1A to 0.5A, Ta=+25°C.) Trace 2=Vout, 100 mV/div. Trace 4=Iout, 0.5A/div. Step Load Transient Response (Vin=14V, Vout=0.9V, Cload=0, Iout=0.5A to 1A, Ta=+25°C.) Trace 2=Vout, 100 mV/div. Trace 4=Iout, 0.5A/div. Step Load Transient Response (Vin=14V, Vout=0.9V, Cload=0, Iout=1A to 0.5A, Ta=+25°C.) Trace 2=Vout, 100 mV/div. Trace 4=Iout, 0.5A/div. www.murata-ps.com email: [email protected] 04 Mar 2011 MDC_OKL-T/1-W12 Series.A02 Page 15 of 16 OKL-T/1-W12 Series Programmable Output 1-Amp iLGA SMT PoLs TAPE AND REEL INFORMATION 330.20 13.000 FEED (UNWIND) DIRECTION 10.44 0.411 5.00 0.197 REF 5.00 0.197 REF 4.00 0.157 0.77 0.030 2.00 0.079 1.50 0.059 TYP 1.75 0.069 13.41 0.528 24.00 0.945 NOZZLE DIA. 4.00 0.157 TYP. 16.00 0.63 PITCH Contents: 800 units per reel TOP COVER TAPE 5.00 0.197 Dimensions in inches [mm] www.murata-ps.com email: [email protected] 04 Mar 2011 MDC_OKL-T/1-W12 Series.A02 Page 16 of 16