LTC3711EGN Linear Technology, LTC3711EGN Datasheet - Page 3

• Manufacturer Part Number: LTC3711EGN
• Description: IC SW REG SYNC STPDN 5BIT 24SSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC3711EGN

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.93 ~ 2 V
• Current - Output: 2A
• Frequency - Switching: Adjustable
• Voltage - Input: 4 ~ 36 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are T
SYMBOL
V
V
V
I
I
V
V
TG R
TG R
BG R
BG R
TG t
TG t
BG t
BG t
Internal V
V
V
PGOOD Output
V
VID DAC
V
I
V
I
R
Note 1: Absolute Maximum Ratings are those values beyond which the life of
a device may be impaired.
Note 2: The LTC3711E is guaranteed to meet performance specifications from
0 C to 70 C. Specifications over the –40 C to 85 C operating temperature
range are assured by design, characterization and correlation with statistical
process controls.
Note 3: T
dissipation P
RUN/SS(C)
RUN/SS(D)
VID(PULLUP)
VID(LEAK)
RUN/SS(ON)
RUN/SS(LE)
RUN/SS(LT)
IN(UVLO)
IN(UVLOR)
INTVCC
EXTVCC
PGL
VID(T)
VID(PULLUP)
V
V
V
V
V
V
VID
V
LDO(LOADREG)
EXTVCC
EXTVCC(HYS)
FBH
FBL
FB(HYS)
OSENSE
LTC3711EGN: T
r
f
r
f
UP
DOWN
UP
DOWN
CC
J
is calculated from the ambient temperature T
Regulator
D
as follows:
PARAMETER
RUN Pin Start Threshold
RUN Pin Latchoff Enable Threshold
RUN Pin Latchoff Threshold
Soft-Start Charge Current
Soft-Start Discharge Current
Undervoltage Lockout
Undervoltage Lockout Release
TG Driver Pull-Up On Resistance
TG Driver Pull-Down On Resistance
BG Driver Pull-Up On Resistance
BG Driver Pull-Down On Resistance
TG Rise Time
TG Fall Time
BG Rise Time
BG Fall Time
Internal V
Internal V
EXTV
EXTV
EXTV
PGOOD Upper Threshold
PGOOD Lower Threshold
PGOOD Hysteresis
PGOOD Low Voltage
VID0-VID4 Logic Threshold Voltage
VID0-VID4 Pull-Up Current
VID0-VID4 Pull-Up Voltage
VID0-VID4 Leakage Current
Resistance from V
DAC Output Accuracy
J
= T
A
CC
CC
CC
+ (P
Switchover Voltage
Switch Drop Voltage
Switchover Hysteresis
CC
CC
D
Voltage
Load Regulation
• 130 C/W)
OSENSE
to V
FB
A
= 25 C. V
A
CONDITIONS
and power
RUN/SS Pin Rising
RUN/SS Pin Falling
V
V
V
V
TG High
TG Low
BG High
BG Low
C
C
C
C
6V < V
I
I
I
V
V
V
I
V
V
V
V
0.925V to 2V (Note 5)
CC
CC
CC
PGOOD
RUN/SS
RUN/SS
IN
IN
LOAD
LOAD
LOAD
LOAD
FB
FB
FB
VID0
VID0
VID0
OSENSE
The
= 0mA to 20mA, V
= 20mA, V
= 20mA, V
Falling
Rising
Rising
Falling
Returning
IN
to V
to V
to V
IN
= 3300pF
= 3300pF
= 3300pF
= 3300pF
= 5mA
= 15V unless otherwise noted.
= 0V
= 4.5V, V
Programmed from
< 30V, V
VID4
VID4
VID4
denotes specifications which apply over the full operating
EXTVCC
EXTVCC
= 0V
Open
= 5V, V
Note 4: The LTC3711 is tested in a feedback loop that adjusts V
a specified error amplifier output voltage (I
Note 5: The LTC3711 VID DAC is tested in a feedback loop that adjusts
V
code.
OSENSE
EXTVCC
FB
= 0V
Rising
= 5V
RUN/SS
EXTVCC
to achieve a specified feedback voltage (V
= 4V
= 0V
= 4V
– 0.25
– 0.5
– 5.5
MIN
0.8
0.8
4.7
4.5
5.5
0.4
6
TH
).
– 7.5
– 1.2
– 0.1
0.15
– 2.5
0.01
TYP
150
200
1.5
3.5
1.8
3.4
3.5
4.7
7.5
1.2
4.5
20
20
20
20
FB
10
4
2
2
3
1
5
1
0
= 0.8V) for each DAC VID
LTC3711
MAX
– 9.5
0.25
300
4.5
4.2
3.9
5.3
9.5
0.4
– 3
14
2
3
4
3
3
4
2
2
2
1
2
FB
to achieve
UNITS
3
3711f
mV
mV
K
ns
ns
ns
ns
%
%
%
%
%
V
V
V
A
A
V
V
V
V
V
V
A
V
A