LTC3714 Linear, LTC3714 Datasheet - Page 2

• Manufacturer Part Number: LTC3714
• Description: Wide Operating Range / Step-Down Controller with Internal Op Amp
• Manufacturer: Linear

ABSOLUTE AXI U RATI GS
ELECTRICAL CHARACTERISTICS
LTC3714
(Note 1)
Input Supply Voltage (V
Boosted Topside Driver Supply Voltage
(BOOST) ................................................... 42V to – 0.3V
SW, SENSE Voltages ................................... 36V to – 5V
EXTV
PGOOD, FCB Voltages ............................... 7V to – 0.3V
V
I
TG, BG, INTV
TG, BG, INTV
OPV
Operating Ambient Temperature Range
Junction Temperature (Note 3) ............................ 125 C
Storage Temperature Range ................. – 65 C to 150 C
Lead Temperature (Soldering, 10 sec).................. 300 C
SYMBOL
Main Control Loop
I
V
g
V
I
t
t
t
V
V
V
2
temperature range, otherwise specifications are T
Q
FCB
ON
ON(MIN)
OFF(MIN)
TH
m(EA)
FB
FCB
SENSE(MAX)
SENSE(MIN)
RUN/SS(ON)
V
V
V
V
ON
FB(LINEREG)
FB(LOADREG)
FB(OV)
FB(UV)
LTC3714EG (Note 2) .......................... – 40 C to 85 C
, V
, V
IN
CC
FB
, OP
RNG
, (BOOST – SW), RUN/SS, VID0-VID4,
, V
OSENSE
+
Voltages ................(INTV
, OP
PARAMETER
Input DC Supply Current
Feedback Reference Voltage
Feedback Voltage Line Regulation
Feedback Voltage Load Regulation
Error Amplifier Transconductance
Forced Continuous Threshold
Forced Continuous Current
On-Time
Minimum On-Time
Minimum Off-Time
Maximum Current Sense Threshold
Minimum Current Sense Threshold
Output Overvoltage Fault Threshold
Output Undervoltage Fault Threshold
RUN Pin Start Threshold
CC
CC
Normal
Shutdown Supply Current
, EXTV
, EXTV
– .......................................................
Voltages ....................... 2.7V to – 0.3V
W
CC
CC
IN
Peak Currents .................... 2A
RMS Currents .............. 50mA
), I
W W
ON
..................36V to – 0.3V
CC
+ 0.3V) to – 0.3V
A
U
= 25 C. V
CONDITIONS
I
V
I
I
V
I
I
I
V
V
V
V
V
V
TH
TH
TH
ON
ON
ON
0V to 18V
IN
FCB
RNG
RNG
RNG
RNG
RNG
RNG
= 1.2V (Note 4)
= 0.5V to 1.9V (Note 4)
= 1.2V (Note 4)
= 4V to 30V (Note 4), I
= 60 A, V
= 180 A, V
= 60 A, V
= 0.6V
= 1V, V
= 0V, V
= INTV
= 1V, V
= 0V, V
= INTV
The
IN
CC
CC
= 15V unless otherwise noted.
FB
FB
FB
FB
ON
ON
denotes specifications which apply over the full operating
ON
, V
, V
= 0.56V
= 0.56V
= 0.64V
= 0.64V
= 1.5V
= 1.5V
FB
FB
= 0V
PACKAGE/ORDER I FOR ATIO
Consult LTC Marketing for parts specified with wider operating temperature ranges.
= 0.56V
= 0.64V
RUN/SS
PGOOD
BOOST
TH
SENSE
PGND
V
VID0
VID1
VID2
V
RNG
= 1.2V
SW
I
BG
TG
ON
TH
T
JMAX
28-LEAD PLASTIC SSOP
10
11
12
13
14
1
2
3
4
5
6
7
8
9
= 125 C,
G PACKAGE
TOP VIEW
JA
= 130 C/ W
28
27
26
25
24
23
22
21
20
19
18
17
16
15
INTV
V
EXTV
VID4
VID3
V
VFB
I
FCB
SGND
OPOUT
OP
OP
OPV
ON
0.594
0.57
IN
OSENSE
MIN
200
113
158
340
1.4
7.5
0.8
79
+
–
IN
CC
CC
U
– 0.05
0.600
0.002
TYP
– 67
– 33
– 93
900
250
250
133
186
400
1.7
0.6
1.5
–1
15
50
93
10
ORDER PART
LTC3714EG
W
NUMBER
0.606
2000
MAX
– 0.3
0.63
12.5
300
100
400
153
107
214
460
– 2
30
2
2
UNITS
U
3714f
%/V
mV
mV
mV
mV
mV
mV
mV
ms
ns
ns
ns
%
%
A
A
V
V
A
V