L6911B View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
L6911B Datasheet PDF : 7 Pages
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L6911B
DESCRIPTION (continued)
(DAC) allows to adjust the output voltage from
1.3V to 2.05V with 0.05V binary steps and from
2.1V to 3.5V with 0.1V binary steps. The high pre-
cision internal reference, digitally trimmed, as-
sures the selected output voltage to within +/-1%.
Thanks to the window comparator system, the de-
vice provides excellent load transient perform-
ance. The high peak current gate drive affords to
ABSOLUTE MAXIMUM RATINGS
Symbol
VCC
VBOOT-VPHASE
Parameter
VCC to PGND
Boot Voltage
Input, Output or I/O Voltage
have fast switching to the external power mos,
performing an high efficiency. The L6911B as-
sures a fast protection against load overvoltage
and load overcurrent. An external SCR is trig-
gered to crowbar the input supply in case of over-
voltage. In case of output short circuit the soft
start capacitor is discharged and the system
works in hiccup mode.
Value
Unit
15
V
15
V
-0.3 to VCC+0.3
V
BLOCK DIAGRAM
VCC 12V
PGOOD
SS
OVP
RT
VD0
VD1
VD2
VD3
VD4
VCC
OCSET
MONITOR and
PROTECTION
OSC
D/A
+
-
+
PWM
-
E/A
BOOT
UGATE
PHASE
LGATE
PGND
GND
VSEN
VFB
Vin 5V
Vo
1.8V to 3.5V
D98IN957A
COMP
THERMAL DATA
Symbol
Rth j-amb
Tmax
Tstg
Parameter
Thermal Resistance Junction to Ambient
Maximum Junction Temperature
Storage Temperature Range
Value
110
150
-65 to 150
Unit
°C/W
°C
°C
RECOMMENDED OPERATING CONDITION
Symbol
VCC
Tamb
TJ
Parameter
VCC to PGND
Ambient Temperature Range
Junction Temperature Range
2/7
Value
Unit
5V ±10%/12V ±10%
V
0 to 70
°C
0 to 125
°C
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