LTC3713
ELECTRICAL CHARACTERISTICS
The ● denotes specifications which apply over the full operating
temperature range, otherwise specifications are TA = 25°C. VIN1 = 15V, VIN2 = 1.5V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
–0.5
0.8
TYP
–1.2
1.8
3.4
3.5
2
MAX
–3
3
UNITS
µA
µA
V
I
I
Soft-Start Charge Current
Soft-Start Discharge Current
V
V
V
V
= 0V
RUN/SS(C)
RUN/SS(D)
RUN/SS
RUN/SS
= 4.5V, V = 0V
FB
UVLO
V
V
Undervoltage Lockout
Falling
●
●
3.9
4
IN1
IN1
IN1
IN1
UVLOR
Undervoltage Lockout Release
Rising
V
TG R
TG R
BG R
BG R
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 High
TG Low
BG High
BG Low
3
Ω
UP
2
3
Ω
DOWN
UP
3
4
Ω
1
2
Ω
DOWN
TG t
TG t
C
C
C
C
= 3300pF
= 3300pF
= 3300pF
= 3300pF
20
20
20
20
ns
ns
ns
ns
r
f
LOAD
LOAD
LOAD
LOAD
TG Fall Time
BG t
BG t
BG Rise Time
r
BG Fall Time
f
Internal V Regulator
CC
V
Internal V Voltage
6V < V < 30V
●
4.7
5
5.3
V
INTVCC
CC
IN
∆V
Internal V Load Regulation
I = 0mA to 20mA
CC
–0.1
±2
%
LDO(LOADREG)
CC
PGOOD Output
∆V
∆V
∆V
PGOOD Upper Threshold
PGOOD Lower Threshold
PGOOD Hysteresis
V
V
V
Rising
5.5
7.5
–7.5
1
9.5
–9.5
2
%
%
%
V
FB1H
FB1
FB1
Falling
–5.5
FB1L
Returning
FB(HYS)
FB1
V
PGL
PGOOD Low Voltage
I
= 5mA
0.15
0.4
PGOOD
Boost Regulator
V
V
Minimum Operating Voltage
Maximum Operating Voltage
0.9
1.5
10
V
V
IN2(MIN)
IN2(MAX)
Q(VIN2)
I
Input DC Supply Current (V
)
IN2
Normal
3
0.01
4.5
1
mA
µA
Shutdown
V
V
V
Feedback Voltage
0°C to 70°C
1.205
1.200
1.23
1.255
1.260
V
V
FB2
FB2
–40°C to 85°C
●
●
I
Pin Bias Current
27
0.02
1.4
80
nA
VFB2
FB2
∆V
BOOST Reference Line Regulation
BOOST Switching Frequency
1.5V ≤ V ≤ 10V
0.2
%/V
FB2(LINEREG)
IN
f
0°C to 70°C
–40°C to 85°C
1.0
0.9
1.8
1.9
MHz
MHz
BOOST
●
DC
BOOST Maximum Duty Cycle
BOOST Switch Current Limit
82
86
%
mA
mV
µA
V
BOOST(MAX)
I
(Note 5)
500
800
300
0.01
LIM(BOOST)
V
BOOST Switch V
I
SW
= 300mA
= 5V
350
1
CESAT(BOOST)
CESAT
I
BOOST Switch Leakage Current
SHDN Input Voltage High
SHDN Input Voltage Low
SHDN Pin Bias Current
V
SWLKG(BOOST)
SW
V
V
1
SHDN(HIGH)
SHDN(LOW)
SHDN
0.3
V
I
V
V
= 3V
= 0V
25
0.01
50
0.1
µA
µA
SHDN
SHDN
Note 1: Absolute Maximum Ratings are those values beyond which the life
achieve a specified error amplifier output voltage (I ).
TH
of a device may be impaired.
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 2: T is calculated from the ambient temperature T and power
J
A
dissipation P as follows:
D
LTC3713EG: T = T + (P • 130°C/W)
J
A
D
Note 5: Current limit guaranteed by design and/or correlation to static test.
Note 3: The LTC3713 is tested in a feedback loop that adjusts V to
FB
3713fa
3