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Cobham Semiconductor - Voltage Regulator

Numéro de référence VRG8658
Description Voltage Regulator
Fabricant Cobham Semiconductor 
Logo Cobham Semiconductor 





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VRG8658 fiche technique
Voltage Regulator
VRG8657/58
Dual 1A 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 RH1086 die
Radiation performance
- Total dose > 100 krad(Si)
Two-Independent voltage regulators
Thermal shutdown
Output voltage adjustable: 1.25V to 23V
Dropout voltage: 1.3V at 1.0Amp
3-Terminal
Output current: 1.0Amp
Packaging – Hermetic metal
- Thru-hole or Surface mount
- 6 Leads, .655"L x .415"W x .200"Ht
- Power package
- Weight - 5 gm max
Designed for aerospace and high reliability space
applications
Voltage reference: 1.25V +2%, -3.2%
Load regulation: 0.3% max
Line regulation: 0.25% max
Ripple rejection: >60dB
Radiation Hardness Assurance Plan: DLA Certified to MIL-PRF-38534, Appendix G.
DESCRIPTION
The VRG8657/8658 consists of two Positive Adjustable (RH1086) LDO voltage regulators each capable of supplying
1.0Amps over the output voltage range as defined under recommended operating conditions. The VRG8657/8658
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 VRG8657/8658 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 VRG8657/8658 has been specifically designed to meet exposure to radiation environments. The VRG8657 is
configured for a Thru-Hole 6 lead metal power package and the VRG8658 is configured for a Surface Mount 6 lead
metal power package. It is guaranteed operational from -55°C to +125°C. Available screened to MIL-STD-883, the
VRG8657/8658 is ideal for demanding military and space applications.
Dropout (VIN - VOUT) decreases at lower load currents for both regulators.
SCD8657
Rev L
14
ADJ
ADJ
2 VOUT
VOUT
6
RH1086
Positive
Regulator
RH1086
Positive
Regulator
VIN VIN
35
FIGURE 1 – BLOCK DIAGRAM / SCHEMATIC
1 Cobham Semiconductor Solutions
www.cobham.com/HiRel

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