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VRG8691 Datasheet(PDF) 5 Page - Aeroflex Circuit Technology

Part # VRG8691
Description  Adjustable 7.5A Positive LDO Regulator Radiation Tolerant
PDF  10 Pages
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Manufacturer  AEROFLEX [Aeroflex Circuit Technology]
Direct Link  http://www.aeroflex.com
Logo AEROFLEX - Aeroflex Circuit Technology

VRG8691 Datasheet(HTML) 5 Page - Aeroflex Circuit Technology

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SCD8691 Rev H 11/12/13
Aeroflex Plainview
5
VRG8691/92
VIN
VOUT
VSENSE
CURR. LIMIT
10
11
12
4
3
2
1
8
ENABLE
6
9
7
5
0.1µF
47µF
+
VBIAS
SLOW START
VBIAS
VIN
CURR. LIMIT
GND
0.1µF
ENABLE
- As shown in Table 3, if the ’CURR. LIMIT’ function (pin 8) is left open, the ICL decreases from 11.5 A(NOM) as VIN is
decreased from 5V.
- To achieve any ICL, less than nominal, use RDEC which can be calculated using the following formula:
RDEC
FIGURE 4 – DECREASING THE CURRENT LIMIT (ICL)
APPLICATION NOTE 2 (CONTINUED)
SETTING THE CURRENT LIMIT
To Decrease the Current Limit (ICL):
RDEC(K-OHMS) =
31 x VIN
69 x VIN
30
- ICL
()
R1
R2
VREF (=1V)
IADJ
CLOAD
47µF
VOUT
+
TANT
1µF
1µF
TANT
CER
CER



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