VRG8691 datasheet(4/10 Pages) AEROFLEX

Part #	VRG8691

Description	Adjustable 7.5A Positive LDO Regulator Radiation Tolerant

PDF	10 Pages

Scroll/Zoom	100%

Manufacturer	AEROFLEX [Aeroflex Circuit Technology]

Direct Link	http://www.aeroflex.com

Logo

4 / 10 page

SCD8691 Rev H 11/12/13

Aeroflex Plainview

VRG8691/92

VIN

VOUT

VSENSE

CURR. LIMIT

RINC

ENABLE

0.1µF

47µF

VBIAS

SLOW START

VBIAS

VIN

GND

0.1µF

FIGURE 3 – INCREASING THE CURRENT LIMIT (ICL)

ENABLE

- If the ’CURR. LIMIT’ function (pin 8) is left open, the ICL decreases from 11.5 A(NOM) as VIN is decreased from 5V (Table 3).

- To increase the current limit above the nominal setting for any VIN and ICL combination, use the following formula:

- To maintain ICL at the 11.5 A setting, for commonly found VIN voltages, apply RINC value found in Table 4.

Table 3

VIN

RINC

ICL NOM

Open

11.5 A

3.3V

Open

7.5 A

2.5V

Open

5.7 A

1.8V

Open

4.1 A

Table 4

VIN

RINC

ICL NOM

Open

11.5 A

3.3V

56k



11.5 A

2.5V

30k



11.5 A

1.8V

16k



11.5 A

APPLICATION NOTE 2

SETTING THE CURRENT LIMIT

To Increase the Current Limit (ICL):

RINC(K-OHMS) =

30 x VIN

30 x ICL

- VIN

()

VREF (=1V)

IADJ

CLOAD

47µF

VOUT

TANT

1µF

TANT

CER

VRG8691 Datasheet(PDF) 4 Page - Aeroflex Circuit Technology

VRG8691 Datasheet(HTML) 4 Page - Aeroflex Circuit Technology

Html Pages

1 2 3 4 5 6 7 8 9 10

Datasheet Download

Link URL