ISO-9001 CERTIFIED BY DSCC M.S.KENNEDY CORP. DUAL POSITIVE/NEGATIVE, 3 AMP, ULTRA LOW DROPOUT FIXED VOLTAGE REGULATORS 4707 Dey Road Liverpool, N.Y. 13088 5200 SERIES (315) 701-6751 FEATURES: MIL-PRF-38534 CERTIFIED Ultra Low Dropout Voltage Internal Short Circuit Current Limit Output Voltages Are Internally Set To ±1% Maximum Electrically Isolated Case Internal Thermal Overload Protection Many Output Voltage Combinations Alternate Package and Lead Form Configurations Available DESCRIPTION: The MSK 5200 Series offers ultra low dropout voltages on both the positive and negative regulators. This, combined with the low θJC, allows increased output current while providing exceptional device efficiency. Because of the increased efficiency, a small hermetic 5 pin package can be used providing maximum performance while occupying minimal board space. Output voltages are internally trimmed to ±1% maximum resulting in consistent and accurate operation. Additionally, both regulators offer internal short circuit current and thermal limiting, which allows circuit protection and eliminates the need for external components and excessive derating. EQUIVALENT SCHEMATIC TYPICAL APPLICATIONS High Efficiency Linear Regulators Constant Voltage/Current Regulators System Power Supplies Switching Power Supply Post Regulators Website: www.w ellking.com PIN-OUT INFORMATION 1 2 3 4 5 E-mail: [email protected] +Vin +Vout GND -Vin -Vout 伟健电子南京 伟健电子深圳 伟健电子武汉 伟健电子西安 伟健电子上海 伟健电子北京 WELLKING HK LTD 电话：029-85269988 电话：021-64325859 电话：010-51669986 电话：025-84799815 电话： 0755-83667084 电话：027-87322626 电话：（852）28541167 传真：029-85262728 传真：021-64325860 传真：010-58895150 传真：025-84799815 传真： 0755-83668675 传真：027-87322727 传真：（852）28541167 ABSOLUTE MAXIMUM RATINGS ±VIN PD IOUT TJ Input Voltage Power Dissipation Output Current Junction Temperature ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ±26V Internally Limited ±3.5A +175°C ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ TST TLD ○ ○ TC Storage Temperature Range -65°C to +150°C Lead Temperature Range 300°C (10 Seconds) Case Operating Temperature MSK5200-5210 -40°C to +125°C MSK5200H-5210H/E -55°C to +125°C ○ ○ ○ ○ ○ ○ ELECTRICAL SPECIFICATIONS Group A MSK 5200H/E SERIES Parameter Test Conditions 1 3 ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ MSK 5200 SERIES Units Subgroup Min. Typ. Max. Min. Typ. Max. VIN=VOUT+1V 1 - 0.5 1.0 - 0.5 1.5 % IOUT=0A 2,3 - 1.0 2.0 - 1.0 - % IOUT=2A; ∆VOUT=-1% 1 - 350 600 - 350 625 mV 100mA≤IOUT≤2.5A 1 - 0.2 1.0 - 0.2 1.2 % V IN=VOUT+1V 2,3 - 0.3 2.0 - 0.3 - % IOUT=0A 1 - 0.1 0.5 - 0.1 0.6 % 0.5 1.0 POSITIVE OUTPUT REGULATORS: Output Voltage Tolerance Dropout Voltage 2 Load Regulation 10 Line Regulation (V OUT+1V)≤V IN≤(26V) 2,3 - - 0.5 - % VIN=VOUT+1V; IOUT=0A 1,2,3 - 10 15 - 10 15 mA V IN=VOUT+1V 1 - 4.5 5.0 - 4.5 5.0 A IOUT=3A; COUT=25µF; f=120Hz 4 60 75 - 60 75 - dB - - 2.5 3.0 - 2.5 3.2 °C/W VIN=VOUT+1.5V 1 - 0.1 1.0 - 0.1 2.0 % IOUT= OA 2,3 - 0.1 2.0 - - - % IOUT=2A; ∆VOUT=-1% 1 - 550 700 - 550 750 mV VIN=V OUT +1.5V 1 - 0.3 1.5 - 0.3 1.7 % 100mA≤IOUT≤2.5A 2,3 - 0.5 2.5 - 0.5 - % IOUT=0A 1 - 0.1 0.5 - 0.1 0.6 % 0.5 1.0 Quiescent Current Short Circuit Current 2 Ripple Rejection 2 Thermal Resistance 2 Junction to Case @ 125°C NEGATIVE OUTPUT REGULATORS: Output Voltage Tolerance Dropout Voltage 2 Load Regulation 10 Line Regulation Quiescent Current Short Circuit Current 2 Ripple Rejection 2 Thermal Resistance 2 9 (V OUT+1.5V)≤V IN≤(26V) 2,3 - - 0.5 - % VIN=VOUT+1.5V; IOUT=0A 1,2,3 - 4.5 10 - 4.5 10 mA VIN=V OUT +1.5V 1 - 3.6 5.0 - 3.6 5.0 A IOUT=3A; COUT=25µF; f=120Hz 4 60 75 - 60 75 - dB - - 4.7 5.9 - 4.7 5.9 °C/W Junction to Case @ 125°C PART 8 NUMBER NOTES: 1 Outputs are decoupled to ground using 33µF minimum tantalum capacitance unless otherwise specified. 2 This parameter is guaranteed by design but need not be tested. Typical parameters are representative of actual device performance but are for reference only. 3 All output parameters are tested using a low duty cycle pulse to maintain TJ = TC. 4 Industrial grade and "E suffix devices shall be tested to subgroups 1 and 4 unless otherwise specified. 5 Military grade devices ('H' suffix) shall be 100% tested to subgroups 1,2,3 and 4. 6 Subgroup 5 and 6 testing available upon request. TC = +25°C 7 Subgroup 1,4 Subgroup 2,5 TJ = +125°C Subgroup 3,6 TA = -55°C 8 Please consult the factory if alternate output voltages are required. 9 Input voltage (VIN =VOUT + a specified voltage) is implied to be more negative than VOUT. 10 Due to current limit, maximum output current may not be available at all values of VIN-VOUT and temperatures. See typical performance curves for clarification. Website: www.w ellking.com MSK 5200 MSK 5201 MSK 5202 MSK 5203 MSK 5204 MSK 5205 MSK 5206 MSK 5207 MSK 5208 MSK 5209 MSK 5210 OUTPUT VOLTAGES POSITIVE NEGATIVE +3.3V +5.0V +5.0V +12.0V +12.0V +15.0V +15.0V +5.0V +5.0V +10.0V +5.2V -5.2V -5.0V -5.2V -5.0V -12.0V -15.0V -5.0V -12.0V -15.0V -10.0V -5.2V E-mail: [email protected] 伟健电子南京 伟健电子深圳 伟健电子武汉 伟健电子西安 伟健电子上海 伟健电子北京 WELLKING HK LTD 电话：029-85269988 电话：021-64325859 电话：010-51669986 电话：025-84799815 电话： 0755-83667084 电话：027-87322626 电话：（852）28541167 传真：029-85262728 传真：021-64325860 传真：010-58895150 传真：025-84799815 传真： 0755-83668675 传真：027-87322727 传真：（852）28541167 APPLICATION NOTES BYPASS CAPACITORS: OVERLOAD SHUTDOWN: For most applications a 47uF, tantalum capacitor should be attached as close to the regulator's output as possible. This will effectively lower the regulator's output impedance, improve transient response and eliminate any oscillations that may be normally associated with low dropout regulators. Additional bypass capacitors can be used at the remote load locations to further improve regulation. These can be either of the tantalum or the electrolytic variety. Unless the regulator is located very close to the power supply filter capacitor(s), a 4.7uF minimum tantalum capacitor should also be added to the regulator's input. An electrolytic may also be substituted if desired. When substituting electrolytic in place of tantalum capacitors, a good rule of thumb to follow is to increase the size of the electrolytic by a factor of 10 over the tantalum value. The regulators feature both current and thermal overload protection. When the maximum power dissipation is not exceeded, the regulators will current limit slightly above their 3 amp rating. As the Vin-Vout voltage increases, however, shutdown occurs in relation to the maximum power dissipation curve. If the device heats enough to exceed its rated die junction temperature due to excessive ambient temperature, improper heat sinking etc., the regulators also shutdown until an appropriate junction temperature is maintained. It should also be noted that in the case of an extreme overload, such as a sustained direct short, the device may not be able to recover. In these instances, the device must be shut off and power reapplied to eliminate the shutdown condition. HEAT SINKING: LOAD REGULATION: For best results the ground pin should be connected directly to the load as shown below. This effectively reduces the ground loop effect and eliminates excessive voltage drop in the sense leg. It is also important to keep the output connection between the regulator and the load as short as possible since this directly affects the load regulation. If 20 gauge wire were used as an example, which has a resistance of about .008 ohms per foot, this would result in a drop of 8mV/ft at 1Amp of load current. It is also important to follow the capacitor selection guidelines to achieve best performance. Refer to Figure 2 for connection diagram. To determine if a heat sink is required for your application and if so, what type, refer to the thermal model and governing equation below. Governing Equation: Tj = Pd x (Rθjc + Rθcs + Rθsa) + Ta MSK 5202 TYPICAL APPLICATION: WHERE Tj = Junction Temperature Pd = Total Power Dissipation Rθj = Junction to Case Thermal Resistance Rθcs = Case to Heat Sink Thermal Resistance Rθsa = Heat Sink to Ambient Thermal Resistance Tc = Case Temperature Ta = Ambient Temperature Ts = Heat Sink Temperature Low Dropout Positive and Negative Power Supply EXAMPLE: This example demonstrates an analysis where each regulator is at one-half of its maximum rated power dissipation, which occurs when the output currents are at 1.5 amps each. The negative regulator is worst case due to the larger thermal resistance. Conditions for MSK 5202: Vin = ±7.0V; Iout = ±1.5A FIGURE 1 1.) Assume 45° heat spreading model. 2.) Find regulator power dissipation: Pd = (Vin - Vout)(Iout) Pd = (7-5)(1.5) Pd = 3.0W Avoiding Ground Loops 3.) 4.) 5.) 6.) 7.) FIGURE 2 Website: www.w ellking.com For conservative design, set Tj = +125°C Max. For this example, worst case Ta = +90°C. Rθjc = 4.7°C/W from the Electrical Specification Table. Rθcs = 0.15°C/W for most thermal greases. Rearrange governing equation to solve for Rθsa: Rθsa= ((Tj - Ta)/Pd) - (Rθjc) - (Rθcs) = (125°C - 90°C)/3.0W - (4.7°C/W) - ( 0.15°C/W) = 6.8°C/W The same exercise must be performed for the negative regulator. In this case the result is 6.82°C/W. Therefore, a heat sink with a thermal resistance of no more than 6.8°C/W must be used in this application to maintain both regulator circuit junction temperatures under 125°C. E-mail: [email protected] 伟健电子南京 伟健电子深圳 伟健电子武汉 伟健电子西安 伟健电子上海 伟健电子北京 WELLKING HK LTD 电话：029-85269988 电话：021-64325859 电话：010-51669986 电话：025-84799815 电话： 0755-83667084 电话：027-87322626 电话：（852）28541167 传真：029-85262728 传真：021-64325860 传真：010-58895150 传真：025-84799815 传真： 0755-83668675 传真：027-87322727 传真：（852）28541167 TYPICAL PERFORMANCE CURVES Website: www.w ellking.com E-mail: [email protected] 伟健电子南京 伟健电子深圳 伟健电子武汉 伟健电子西安 伟健电子上海 伟健电子北京 WELLKING HK LTD 电话：029-85269988 电话：021-64325859 电话：010-51669986 电话：025-84799815 电话： 0755-83667084 电话：027-87322626 电话：（852）28541167 传真：029-85262728 传真：021-64325860 传真：010-58895150 传真：025-84799815 传真： 0755-83668675 传真：027-87322727 传真：（852）28541167 MECHANICAL SPECIFICATIONS NOTE: ALL DIMENSIONS ARE ±0.010 INCHES UNLESS OTHERWISE LABELED. ESD Triangle indicates Pin 1. ORDERING INFORMATION MSK5200- H T U LEAD CONFIGURATIONS S= STRAIGHT; U= BENT UP; D= BENT DOWN PACKAGE STYLE T= TOP TAB; Z= Z PACK SCREENING BLANK= INDUSTRIAL; E=EXTENDED RELIABILITY H=MIL-PRF 38534 CLASS H GENERAL PART NUMBER The above example is a dual +3.3V, -5.2V, Military regulator using the top tab package with leads bent up. Website: www.w ellking.com E-mail: [email protected] 伟健电子南京 伟健电子深圳 伟健电子武汉 伟健电子西安 伟健电子上海 伟健电子北京 WELLKING HK LTD 电话：029-85269988 电话：021-64325859 电话：010-51669986 电话：025-84799815 电话： 0755-83667084 电话：027-87322626 电话：（852）28541167 传真：029-85262728 传真：021-64325860 传真：010-58895150 传真：025-84799815 传真： 0755-83668675 传真：027-87322727 传真：（852）28541167