參數(shù)資料
型號： LTC3713EG
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： Low Input Voltage, High Power, No RSENSE Synchronous Buck DC/DC Controller
中文描述： 2 A SWITCHING CONTROLLER, 1900 kHz SWITCHING FREQ-MAX, PDSO24
封裝： PLASTIC, SSOP-24
文件頁數(shù)： 3/24頁
文件大?。?/td> 325K
代理商： LTC3713EG
3
LTC3713
3713fa
The
G
denotes specifications which apply over the full operating
temperature range, otherwise specifications are T
A
= 25
°
C. V
IN1
= 15V, V
IN2
= 1.5V unless otherwise noted.
SYMBOL
PARAMETER
I
RUN/SS(C)
Soft-Start Charge Current
I
RUN/SS(D)
Soft-Start Discharge Current
UVLO
V
IN1
Undervoltage Lockout
UVLOR
V
IN1
Undervoltage Lockout Release
TG R
UP
TG Driver Pull-Up On Resistance
TG R
DOWN
TG Driver Pull-Down On Resistance
BG R
UP
BG Driver Pull-Up On Resistance
BG R
DOWN
BG Driver Pull-Down On Resistance
TG t
r
TG Rise Time
TG t
f
TG Fall Time
BG t
r
BG Rise Time
BG t
f
BG Fall Time
Internal V
CC
Regulator
V
INTVCC
Internal V
CC
Voltage
V
LDO(LOADREG)
Internal V
CC
Load Regulation
PGOOD Output
V
FB1H
PGOOD Upper Threshold
V
FB1L
PGOOD Lower Threshold
V
FB(HYS)
PGOOD Hysteresis
V
PGL
PGOOD Low Voltage
Boost Regulator
V
IN2(MIN)
Minimum Operating Voltage
V
IN2(MAX)
Maximum Operating Voltage
I
Q(VIN2)
Input DC Supply Current (V
IN2
)
Normal
Shutdown
V
FB2
V
FB2
Feedback Voltage
ELECTRICAL CHARACTERISTICS
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
T
J
is calculated from the ambient temperature T
A
and power
dissipation P
D
as follows:
LTC3713EG: T
J
= T
A
+ (P
D
130
°
C/W)
Note 3:
The LTC3713 is tested in a feedback loop that adjusts V
FB
to
achieve a specified error amplifier output voltage (I
TH
).
Note 4:
The LTC3713E 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 5:
Current limit guaranteed by design and/or correlation to static test.
CONDITIONS
V
RUN/SS
= 0V
V
RUN/SS
= 4.5V, V
FB
= 0V
V
IN1
Falling
V
IN1
Rising
TG High
TG Low
BG High
BG Low
C
LOAD
= 3300pF
C
LOAD
= 3300pF
C
LOAD
= 3300pF
C
LOAD
= 3300pF
MIN
–0.5
0.8
TYP
–1.2
1.8
3.4
3.5
2
2
3
1
20
20
20
20
MAX
–3
3
3.9
4
3
3
4
2
UNITS
μ
A
μ
A
V
V
ns
ns
ns
ns
G
G
6V < V
IN
< 30V
I
CC
= 0mA to 20mA
G
4.7
5
5.3
±
2
V
–0.1
%
V
FB1
Rising
V
FB1
Falling
V
FB1
Returning
I
PGOOD
= 5mA
5.5
–5.5
7.5
–7.5
1
0.15
9.5
–9.5
2
0.4
%
%
%
V
0.9
1.5
10
V
V
3
4.5
1
1.255
1.260
80
0.2
1.8
1.9
mA
μ
A
0.01
1.23
0
°
C to 70
°
C
–40
°
C to 85
°
C
1.205
1.200
V
V
G
I
VFB2
V
FB2(LINEREG)
f
BOOST
V
FB2
Pin Bias Current
BOOST Reference Line Regulation
BOOST Switching Frequency
G
27
0.02
1.4
nA
1.5V
≤
V
IN
≤
10V
0
°
C to 70
°
C
–40
°
C to 85
°
C
%/V
MHz
MHz
1.0
0.9
82
500
G
DC
BOOST(MAX)
I
LIM(BOOST)
V
CESAT(BOOST)
I
SWLKG(BOOST)
V
SHDN(HIGH)
V
SHDN(LOW)
I
SHDN
BOOST Maximum Duty Cycle
BOOST Switch Current Limit
BOOST Switch V
CESAT
BOOST Switch Leakage Current
SHDN Input Voltage High
SHDN Input Voltage Low
SHDN Pin Bias Current
86
800
300
0.01
%
(Note 5)
I
SW
= 300mA
V
SW
= 5V
mA
mV
μ
A
350
1
1
V
V
0.3
50
0.1
V
SHDN
= 3V
V
SHDN
= 0V
25
0.01
μ
A
μ
A
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