Voltage Regulator VRG8662 1A LDO Adjustable Positive Voltage Regulator Released Datasheet Cobham.com/HiRel March 24, 2016 The most important thing we build is trust FEATURES Manufactured using Space Qualified RH1086 die Radiation performance - Total dose: >100 krad(Si), Dose rate = 50-300 rad(Si)/s - ELDRS: > 50 krad(Si), Dose rate = 0.01 rad(Si)/s Thermal shutdown Output voltage adjustable: 1.25V to 23V Dropout voltage: 1.3V at 1.0 Amps 3-Terminal Output current: 1.0A (See Note 1, pg 2) Voltage reference: 1.25V +2%, -3.2% Load regulation: 0.3% max Line regulation: 0.25% max Ripple rejection: >60dB Packaging – Hermetic Ceramic - SMD-0.5 Surface mount - 3 Pads, .400"L x .296"W x .120"Ht - Power package - Weight - 2 gm max Designed for aerospace and high reliability space applications Radiation Hardness Assurance Plan: DLA Certified to MIL-PRF-38534, Appendix G. DESCRIPTION The VRG8662 consists of a Positive Adjustable (RH1086) LDO voltage regulator capable of supplying 1.0 Amps over the output voltage range as defined under recommended operating conditions. The VRG8662 offers excellent line and load regulation specifications and ripple rejection. Dropout (VIN - VOUT) decreases at lower load currents. The VRG8662 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 VRG8662 has been specifically designed to meet exposure to radiation environments and is configured for a SMD-0.5 SMT power package. It is guaranteed operational from -55°C to +125°C. Available screened to MIL-STD-883, the VRG8662 is ideal for demanding military and space applications. 3 ADJ VOUT 1 RH1086 Positive Regulator VIN 2 FIGURE 1 – BLOCK DIAGRAM / SCHEMATIC SCD8662 Rev H 1 Cobham Semiconductor Solutions www.cobham.com/HiRel ABSOLUTE MAXIMUM RATINGS PARAMETER Input Voltage DC Output Current RANGE UNITS +25+VREF VDC 1.5 A Lead temperature (soldering 10 Sec) 300 °C Input Output Differential 25 VDC Output Voltage +25 VDC ESD (MIL-STD-883, M3015, Class 3A) 4000 V Operating Junction Temperature Range -55 to +150 °C Storage Temperature Range -65 to +150 °C 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 Output Voltage Range 1.275 to 23 VDC 1.5 to 25 VDC -55 to +125 °C Input Output Differential Case Operating Temperature Range ELECTRICAL PERFORMANCE CHARACTERISTICS Unless otherwise specified, -55°C < Tc < +125°C. PARAMETER SYM Reference Voltage 2/ 3/ VREF CONDITIONS (P PMAX) 10mA < IOUT < 1.0A, 1.5V < VIN - VOUT < 15V MIN MAX UNITS 1.210 1.275 V Line Regulation 2/ 3/ VOUT ILOAD = 10mA, Tj = +25°C, VIN 1.5V < VIN - VOUT < 15V - 0.25 % Load Regulation 2/ 3/ VOUT 10mA < IOUT < 1.0A, (VIN - VOUT) = 3V IOUT - 0.40 % Dropout Voltage 2/ 4/ VDROP DVREF = 1%, IOUT = 1.0A - 1.30 V Adjust Pin Current 2/ - - - 120 µA Adjust Pin Current Change 2/ - 10 mA < IOUT < 1A, 1.5V < VIN - VOUT < 15V - 5 µA VIN - VOUT = 5V 1.5 - A VIN - VOUT < 25V 0.047 - A VIN - VOUT = 25V - 10 mA 60 - dB Current Limit 2/ 6/ IMAX Minimum Load Current 5/ IMIN Ripple Rejection 3/ - IOUT = 1.0A, (VIN - VOUT) = 3V, f = 120Hz, CADJ = COUT = 25µF Thermal Regulation - 30ms pulse, TC = +25°C - 0.04 %/W VREF Long-Term Stability 5/ - Burn In: TC = +125°C @ 1000hrs min. Tested at +25°C only. - 0.30 % - - 3 °C/W Thermal Resistance (Junction to Case) JC Notes: 1/ For compliance with MIL-STD- 883 revision C current density specification, the RH1086MK is derated to 1 Amp but is capable of 1.5 Amps. 2/ Specification derated to reflect Total Dose exposure to 100 krad(Si) @+25°C 3/ Line and load regulation are guaranteed up to the maximum power dissipation of 15W. 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. 6/ Pulsed @ <10% duty cycle @+25°C for characterization only. (See note 1) SCD8662 Rev H 3/24/2016 2 Cobham Semiconductor Solutions www.cobham.com/HiRel 60 50 40 Maximum Power Dissipation (Watts) 30 20 10 0 0 20 40 60 80 100 120 140 Case Temperature (°C) The maximum Power dissipation is limited by the thermal shutdown function of the regulator chip in the VRG8662. The graph above represents the achievable power before the chip shuts down. The line in the graph represents the maximum power dissipation of the VRG8662 This graph is based on the maximum junction temperature of 150°C and a thermal resistance (JC) of 3°C/W. FIGURE 2 – MAXIMUM POWER vs CASE TEMPERATURE SCD8662 Rev H 3/24/2016 3 Cobham Semiconductor Solutions www.cobham.com/HiRel See Note 1, pg 2. See Note 4, pg 2. FIGURE 3 – RH1086 SHORT CIRCUIT CURRENT VIN 2 FIGURE 4 – RH1086 TYPICAL DROPOUT VOLTAGE CURVE VRG8662 1 VREF Vout R1 10µF Tant. 3 ADJ VREF = 1.25V, IADJ = 50µA +Reg = VOUT = VREF (1+R2/R1) + (IADJ x R2) R2 FIGURE 5 – BASIC RH1086 ADJUSTABLE REGULATOR APPLICATION SCD8662 Rev H 3/24/2016 4 Cobham Semiconductor Solutions www.cobham.com/HiRel .301 MAX .095 2 Places R.025 MAX 6 Places .030 MIN 2 .405 MAX .005 .120 2 Places 3 .030 MIN 1 .225 .150 4X R.020 .005 .005 .015 3 Places .286 .127 MAX NOTES: 1. Package & Lid are electrically isolated from signal pads 2. ESD symbol denotes Pin 1 FIGURE 6 – PACKAGE OUTLINE — SURFACE MOUNT SCD8662 Rev H 3/24/2016 5 Cobham Semiconductor Solutions www.cobham.com/HiRel ORDERING INFORMATION MODEL DLA SMD # SCREENING VRG8662 - 7 - Commercial Flow, +25°C testing only VRG8662 - S - Military Temperature, -55°C to +125°C Screened in accordance with the individual Test Methods of MIL-STD-883 for Space Applications VRG8662- 201-1S 5962-0920701KXC VRG8662- 201-2S 5962-0920701KXA VRG8662- 901-1S 5962R0920701KXC VRG8662- 901-2S 5962R0920701KXA SCD8662 Rev H 3/24/2016 PACKAGE SMD-0.5 Power Pkg In accordance with DLA SMD In accordance with DLA Certified RHA Program Plan to RHA Level "R", 100 krad(Si) 6 Cobham Semiconductor Solutions www.cobham.com/HiRel REVISION HISTORY Date Revision 03/24/2016 H SCD8662 Rev H 3/24/2016 Change Description Import into Cobham format 7 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 RH1086, which is available on-line at www.linear.com. LT, LTC, Linear Technology and the Linear logo are registered trademarks and RH1086 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. SCD8662 Rev H 3/24/2016 8 Cobham Semiconductor Solutions www.cobham.com/HiRel