15/34

L6710

the FB pin. Connecting a resistor between this pin and Vout, the total current information flows only in this

resistor because the compensation network between FB and COMP has always a capacitor in series (See

fig. 7). The voltage regulated is then equal to:

rent is given by:

The feedback current is equal to 50

tervention threshold, so the maximum output voltage deviation is equal to:

Figure 6. Output transient response without (a) and with (b) the droop function

Figure 7. Active Droop Function Circuit

REMOTE VOLTAGE SENSE

A remote sense buffer is integrated into the device to allow output voltage remote sense implementation

without any additional external components. In this way, the output voltage programmed is regulated be-

tween the remote buffer inputs compensating motherboard trace losses or connector losses if the device

V

OUT

VI D* R

FB

I

FB

⋅

–

=

V

OUT

VI D* R

DROOP

I

LO AD

VID* R

FB

R

SE NSE

Rg

---------------------- I

LO AD

⋅⋅

–

=

⋅

–

=

∆V

FUL L

P O SITIVE

–

LO AD

–

R

FB

50

µA

∆V

O C

INTERV ENTIO N

–

R

FB

70

µA

⋅

–

=

⋅

–

=

(a)

(b)

ESR DROP

ESR DROP

Ref

COMP

FB

Ref

COMP

FB