4
LTC3716
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 15V, V
BIAS
= 5V, V
RUN/SS
= 5V unless otherwise noted.
Note 5: Dynamic supply current is higher due to the gate charge being
delivered at the switching frequency. See Applications Information.
Note 6: Rise and fall times are measured using 10% and 90% levels. Delay
times are measured using 50% levels.
Note 7: The minimum on-time condition corresponds to the on inductor
peak-to-peak ripple current ≥40% I
MAX
(see Minimum On-Time
Considerations in the Applications Information section).
Note 8: Each built-in pull-up resistor attached to the VID inputs also has a
series diode to allow input voltages higher than the VIDV
CC
supply without
damage or clamping (see the Applications Information section).
Note 1: Absolute Maximum Ratings are those values beyond which the
life of a device may be impaired.
Note 2: The LTC3716 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
J
is calculated from the ambient temperature T
A
and power
dissipation P
D
according to the following formula:
LTC3716EG: T
J
= T
A
+ (P
D
• 85°C/W)
Note 4: The LTC3716 is tested in a feedback loop that servos V
ITH
to a
specified voltage and measures the resultant V
EAIN
.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
PGOOD Output
V
PGL
PGOOD Voltage Low I
PGOOD
= 2mA 0.1 0.3 V
I
PGOOD
PGOOD Leakage Current V
PGOOD
= 5V ±1 µA
V
PG
PGOOD Trip Level, Either Controller V
EAIN
with Respect to Set Output Voltage
V
EAIN
Ramping Negative –8 –10 –12 %
V
EAIN
Ramping Positive 8 10 12 %
Differential Amplifier/Op Amp Gain Block
A
DA
Differential Amplifier Gain V
AMPMD
= 0V 0.995 1 1.005 V/V
CMRR
DA
Common Mode Rejection Ratio 0V < V
CM
< 5V; V
AMPMD
= 0V 46 55 dB
R
IN
Input Resistance Measured at V
OS
+ Input; V
AMPMD
= 0V 80 kΩ
V
OS
Input Offset Voltage Op Amp Mode; V
CM
= 2.5V, V
AMPMD
= 5V 6 mV
V
DIFFOUT
= 5V; I
DIFFOUT
= 1mA
I
B
Input Bias Current Op Amp Mode; V
AMPMD
= 5V 30 200 nA
A
OL
Open-Loop DC Gain Op Amp Mode; 0.7V ≤ V
DIFFOUT
< 10V, V
AMPMD
= 5V 5000 V/mV
V
CM
Common Mode Input Voltage Range Op Amp Mode; V
AMPMD
= 5V 0 3 V
CMRR
OA
Common Mode Rejection Ratio Op Amp Mode; 0V < V
CM
< 3V, V
AMPMD
= 5V 70 90 dB
PSRR
OA
Power Supply Rejection Ratio Op Amp Mode; 6V < V
IN
< 30V, V
AMPMD
= 5V 70 90 dB
I
CL
Maximum Output Current Op Amp Mode; V
DIFFOUT
= 0V, V
AMPMD
= 5V 10 35 mA
V
OMAX
Maximum Output Voltage Op Amp Mode; I
DIFFOUT
= 1mA, V
AMPMD
= 5V 10 11 V
GBW Gain-Bandwidth Product Op Amp Mode; I
DIFFOUT
= 1mA, V
AMPMD
= 5V 2 MHz
SR Slew Rate Op Amp Mode; R
L
= 2k, V
AMPMD
= 5V 5 V/µs
