Voltage Regulator VRG8687/88 Dual 3A LDO Adjustable Positive Voltage Regulators Released Datasheet Cobham.com/HiRel March 24, 2016 The most important thing we build is trust FEATURES Manufactured using Space Qualified RH1084 die Radiation performance Packaging – Hermetic metal - Total dose > 100 krad(Si), Dose rate = 50-300 rad(Si)/s - Thru-hole or Surface mount - 8 Leads, .755"L x .415"W x .200"Ht Two-Independent voltage regulators - Power package Thermal shutdown - Weight - 6 gm max Output voltage adjustable: 1.25V to 23V Designed for aerospace and high reliability space Dropout voltage: 1.80V at 3.0Amps applications 3-Terminal Output current: 3.0Amps Voltage reference: 1.25V +2%, -3.2% Load regulation: 0.35% max Line regulation: 0.25% max Ripple rejection: >60dB Radiation Hardness Assurance Plan: DLA Certified to MIL-PRF-38534, Appendix G. DESCRIPTION The VRG8687/8688 consists of two Positive Adjustable (RH1084) LDO voltage regulators each capable of supplying 3.0Amps over the output voltage range as defined under recommended operating conditions. The VRG8687/8688 offers excellent line and load regulation specifications and ripple rejection. There is full electrical isolation between the regulators and each regulator to the package. The VRG8687/8688 serves a wide variety of applications including SCSI-2 Active Terminator, High Efficiency Linear Regulators, Post Regulators for Switching Supplies, Constant Current Regulators, Battery Chargers and Microprocessor Supply. The VRG8687/8688 has been specifically designed to meet exposure to radiation environments. The VRG8687 is configured for a Thru-Hole 8 lead metal power package and the VRG8688 is configured for a Surface Mount 8 lead metal power package. It is guaranteed operational from -55°C to +125°C. Available screened in accordance with MIL-PRF-38534, the VRG8687/8688 is ideal for demanding military and space applications. Dropout (VIN - VOUT) decreases at lower load currents for both regulators. 1 5 ADJ_1 2 ADJ_2 VOUT_1 VOUT_2 RH1084 Positive Regulator 3 6 RH1084 Positive Regulator SENSE_1 SENSE_2 VIN_1 7 VIN_2 8 4 FIGURE 1 – BLOCK DIAGRAM / SCHEMATIC SCD8687 Rev D 1 Cobham Semiconductor Solutions www.cobham.com/HiRel ABSOLUTE MAXIMUM RATINGS Parameter Rating Units Input Voltage +25 VDC Input Output Differential 25 VDC Load Current, maximum 6.0 A Output Voltage +25 VDC 2000 to 3999 V Operating Junction Temperature Range -55 to +150 °C Storage Temperature Range -65 to +150 °C 5 °C/W 300 °C ESD (MIL-STD-883, M3015, Class 2) Thermal Resistance, Junction to case JC Lead temperature (soldering 10 Sec) NOTICE: Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress rating only; functional operation beyond the "Operation Conditions" is not recommended and extended exposure beyond the "Operation Conditions" may effect device reliability. RECOMMENDED OPERATING CONDITIONS Parameter Range Units 1.25 to 23.00 VDC Input Output Differential 3/ 1.8 to 24.0 VDC Case Operating Temperature Range -55 to +125 °C Output Voltage Range ELECTRICAL PERFORMANCE CHARACTERISTICS 1/ UNLESS OTHERWISE SPECIFIED: -55°C TC +125°C Parameter Symbol Conditions (P PMAX) Min Max Units Reference Voltage 3/, 2/ VREF Line Regulation 3/, 2/ VOUT ILOAD = 10mA, 1.5V < (VIN - VOUT) < 15V VIN - 0.25 % Load Regulation 3/, 2/ VOUT 10mA < IOUT < 3.0A, (VIN - VOUT) = 3V IOUT - 0.35 % 1.5V < (VIN - VOUT) < 15V, 10mA < IOUT < 3.0A 1.210 1.275 V Dropout Voltage 4/, 2/ VDROP1 VREF = 1%, IOUT = 5.0A - 1.8 V Dropout Voltage VDROP2 VREF = 1%, IOUT = 3.0A - 1.4 V - 120 µA 10 mA < IOUT < 3.0A, 1.5V < (VIN - VOUT) < 15V - 5 µA Adjust Pin Current 2/ - Adjust Pin Current Change 2/ - Minimum Load Current 5/, 2/ IMIN (VIN - VOUT) = 25V - 10 mA Current Limit 2/ ICL (VIN - VOUT) = 5V 5.25 - A 60 - dB - 0.04 %/W Ripple Rejection 3/ - IOUT = 0.5A, (VIN - VOUT) = 3V, f = 120Hz, CADJ = COUT = 25µF Thermal Regulation - 30ms pulse, TC = +25°C Notes: 1/ The manufacturer’s output current rating for the RH1084MK positive regulator integrated circuit is 5.0 Amps. For Compliance with the Current Density specifictation of MIL-STD-883 Rev. C, the electrical performance characteristics are specified at an output current of 3.0 Amps. 2/ Specification derated to reflect total dose exposure to 100 krad(Si) at +25°C. 3/ Line and load regulation are guaranteed up to the maximum power dissipation of 15W per device. Power dissipation is determined by the input/output differential voltage and the output current. Guaranteed maximum power dissipation will not be available over the full input/output voltage range. 4/ Dropout voltage is specified over the full output current range of the device. 5/ Not tested. Shall be guaranteed by design, characterization, or correlation to other tested parameters. SCD8687 Rev D 3/24/2016 2 Cobham Semiconductor Solutions www.cobham.com/HiRel 60 50 40 Maximum Power Dissipation (Watts) 30 Both Regulators 20 1 Regulator 10 0 0 20 40 60 80 100 120 140 Case Temperature (°C) FIGURE 2 – MAXIMUM POWER vs CASE TEMPERATURE The maximum Power dissipation is limited by the thermal shutdown function of each regulator chip in the VG8687/8688. The graph above represents the achievable power before the chip shuts down. The first line in the graph represents the maximum power dissipation of the VG8687/8688 with one regulator on (the other off) and the other line represents both regulators on dissipating equal power. If both regulators are on and one regulator is dissipating more power that the other, the maximum power dissipation of the VG8687/8688 will fall between the two lines. This graph is based on the maximum junction temperature of 150°C and a thermal resistance (JC) of 5°C/W. See Note 1/ on page 2 FIGURE 3 – RH1084 SHORT CIRCUIT CURRENT SCD8687 Rev D 3/24/2016 3 Cobham Semiconductor Solutions www.cobham.com/HiRel FIGURE 4 – RH1084 DROPOUT VOLTAGE TYPICAL CURVE SENSE VIN VRG8687/88 10µF Tant. VOUT VREF R1 22µF Tant. ADJ VREF = 1.25V, IADJ = 55µA +Reg = VOUT = VREF (1+R2/R1) + (IADJ x R2) R2 FIGURE 5 – BASIC RH1084 ADJUSTABLE REGULATOR APPLICATION SCD8687 Rev D 3/24/2016 4 Cobham Semiconductor Solutions www.cobham.com/HiRel TABLE I – PIN NUMBERS vs FUNCTION PIN FUNCTION 1 ADJ_1 2 VOUT_1 3 SENSE_1 4 VIN_2 5 ADJ_2 6 VOUT_2 7 SENSE_2 8 VIN_1 .300 .090 8X .100 .108 ø .010 M CBA .150 REF. ø.145 THRU 2x .028 MAX. 8 7 6 2° MAX. TYP. 5 .720 ±.020 MEASURED LEAD TIP .415 .2075 –C– 1 2 3 4 ESD/PIN 1 IDENT .230 MIN .515 R.065 TYP. 4 PLCS .632 .755 ±.003 .122 –B– ø .010 BCA .220 MAX. ±.005 –A– .040 .030 DIA. ±.002 Notes: 1. Dimension Tolerance: ±.005 inches 2. Package contains BeO substrate 3. Case electrically isolated ø .010 M CBA FIGURE 5 – VRG8687 PACKAGE OUTLINE — THRU-HOLE POWER PACKAGE SCD8687 Rev D 3/24/2016 5 Cobham Semiconductor Solutions www.cobham.com/HiRel TABLE II – PIN NUMBERS vs FUNCTION PIN FUNCTION 1 ADJ_1 2 VOUT_1 3 SENSE_1 4 VIN_2 5 ADJ_2 6 VOUT_2 7 SENSE_2 8 VIN_1 .300 .090 8X .100 .108 ø .010 .150 REF. CBA ø.145 THRU 2x .028 MAX. M 7 8 6 .060 ±.005 5 .415 .886 ±.020 .2075 –C– 2 1 3 4 ESD/PIN 1 IDENT .515 R.065 TYP. 4 PLCS .632 .755 ±.003 .122 –B– ø .010 BCA .220 MAX. ±.005 –A– .020±.005 .030 DIA. ±.002 ø .010 M CBA .040 Notes: 1. Dimension Tolerance: ±.005 inches 2. Package contains BeO substrate 3. Case electrically isolated FIGURE 6 – VRG8688 PACKAGE OUTLINE — SURFACE MOUNT POWER PACKAGE SCD8687 Rev D 3/24/2016 6 Cobham Semiconductor Solutions www.cobham.com/HiRel ORDERING INFORMATION Model VRG8687 - 7 DLA SMD # Screening - Commercial Flow, +25°C testing only VRG8687- 201-1S 5962-1021302KUC VRG8687- 201-2S 5962-1021302KUA VRG8687- 901-1S 5962R1021302KUC VRG8687- 901-2S 5962R1021302KUA VRG8688 - 7 - VRG8688- 201-1S 5962-1021302KZC VRG8688- 201-2S 5962-1021302KZA VRG8688- 901-1S 5962R1021302KZC VRG8688- 901-2S 5962R1021302KZA SCD8687 Rev D 3/24/2016 Package In accordance with DLA SMD 8 Lead Thru-Hole Power Pkg In accordance with DLA Certified RHA Program Plan to RHA Level "R", 100 krad(Si) Commercial Flow, +25°C testing only 8 Lead Surface Mount Power Pkg In accordance with DLA SMD In accordance with DLA Certified RHA Program Plan to RHA Level "R", 100 krad(Si) 7 Cobham Semiconductor Solutions www.cobham.com/HiRel REVISION HISTORY Date Revision 03/24/2016 D SCD8687 Rev D 3/24/2016 Change Description Import into Cobham format 8 Cobham Semiconductor Solutions www.cobham.com/HiRel Datasheet Definition Advanced Datasheet - Product In Development Preliminary Datasheet - Shipping Prototype Datasheet - Shipping QML & Reduced Hi-Rel For detailed performance characteristic curves, applications information and typical applications, see the latest datasheet for their RH1084, which is available on-line at www.linear.com. LT, LTC, Linear Technology and the Linear logo are registered trademarks and RH1084 is copyright Linear Technology Corporation. EXPORT CONTROL: This product is controlled for export under the Export Administration Regulations (EAR), 15 CFR Parts 730-774. A license from the Department of Commerce may be required prior to the export of this product from the United States. Cobham Semiconductor Solutions 35 S. Service Road Plainview, NY 11803 E: [email protected] T: 800 645 8862 Aeroflex Plainview Inc., DBA Cobham Semiconductor Solutions, reserves the right to make changes to any products and services described herein at any time without notice. Consult Aeroflex or an authorized sales representative to verify that the information in this data sheet is current before using this product. Aeroflex does not assume any responsibility or liability arising out of the application or use of any product or service described herein, except as expressly agreed to in writing by Aeroflex; nor does the purchase, lease, or use of a product or service from Aeroflex convey a license under any patent rights, copyrights, trademark rights, or any other of the intellectual rights of Aeroflex or of third parties. SCD8687 Rev D 3/24/2016 9 Cobham Semiconductor Solutions www.cobham.com/HiRel