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Cobham Semiconductor - Voltage Regulator

Numéro de référence VRG8692
Description Voltage Regulator
Fabricant Cobham Semiconductor 
Logo Cobham Semiconductor 





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VRG8692 fiche technique
Voltage Regulator
VRG8691/92
7.5 Amp LDO Adjustable Positive Voltage Regulators
Released Datasheet
Cobham.com/HiRel
March 24, 2016
The most important thing we build is trust
FEATURES
Radiation performance
- Total dose: 100 krad(Si),
Dose rate = 50-300 rad(Si)/s
Output voltage adjustable: 1.0V to 3.3V
Output current: 7.5A
Dropout voltage: 0.5V at 7.5Amps
Voltage reference: 1.0V ±0.5%
Load regulation: 0.5% max
Line regulation: 0.2% max
Ripple rejection: >80dB
Enable Input - TTL / CMOS Compatible
Slow Start capability
Stable with multiple ceramic output capacitors
Packaging – Hermetic metal
- Thru-hole or Surface mount
- 12 Leads, 0.900"L x 1.000"W x .205"Ht
- Power package
- Weight - 18 gm max
Designed for aerospace and high reliability
space applications
Radiation Hardness Assurance Plan: DLA Certified to MIL-PRF-38534, Appendix G.
DESCRIPTION
The VRG8691/92 is capable of supplying in excess of 7.5Amps over the output voltage range as defined
under recommended operating conditions. The regulator is exceptionally easy to set-up, requiring only 2
external resistors to set the output voltage. The module design has been optimized for excellent regulation
and low drop-out voltage. Figures 2 through 5 illustrate setting output voltage, setting current limits and
choosing a slow start capacitor. The VRG8691/92 serves a wide variety of applications including local
on-card regulation, programmable output voltage regulation or precision current regulation.
The VRG8691/92 has been specifically designed to meet exposure to radiation environments. The
VRG8691 is configured for a Thru-Hole 12 lead metal power package and the VRG8692 is configured for
a Surface Mount 12 lead metal power package. It is guaranteed operational from -55°C to +125°C.
Available screened to MIL-STD-883, the VRG8691/92 is ideal for demanding military and space
applications.
CURRENT LIMIT (ICL)
The VRG8691/92 features internal current limiting making them virtually blowout-proof against overloads.
The limit is nominally 11.5A @ Vin = 5V (see Table 2), but may be increased or decreased with the addition
of one external resistor (see Application Note 2).
1
VIN 2
3
VBIAS 4
VRG8691/92
12
11 VOUT
10
9 VSENSE
ENABLE
GND
5
6
8 Current Limit
7 Slow Start
SCD8691
Rev J
FIGURE 1 – BLOCK DIAGRAM / SCHEMATIC
1 Cobham Semiconductor Solutions
www.cobham.com/HiRel

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