LTC3731HGTR Linear Technology, LTC3731HGTR Datasheet - Page 4

• Manufacturer Part Number: LTC3731HGTR
• Manufacturer: Linear Technology

Specifications of LTC3731HGTR

• Lead Free Status / RoHS Status: Not Compliant

ELECTRICAL CHARACTERISTICS
LTC3731H
SYMBOL
V
R
I
R
CLKOUT
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC3731H is guaranteed to meet specifications from –40°C to
140°C. Junction temperature (T
temperature T
formula:
High junction temperatures degrade operating lifetimes. Operating lifetime
at junction temperatures greater than 125°C is derated to 1000 hours.
temperature range, otherwise specifications are at T
4
PLLFLTR
PLLTH
PLLIN
RELPHS
LTC3731H: T
LTC3731H: T
A
and power dissipation P
PARAMETER
PLLIN Input Threshold
PLLIN Input Resistance
Phase Detector Output Current
Controller 2-Controller 1 Phase
Controller 3-Controller 1 Phase
Controller 1 TG to CLKOUT Phase
J
J
Sinking Capability
Sourcing Capability
= T
= T
A
CASE
+ (P
+ (P
D
× 95°C/W)
D
J
) is calculated from the ambient
× 32°C/W)
D
according to the following
CONDITIONS
Minimum Pulse Width > 100ns
f
f
PHASMD = 0V
PHASMD = 5V
PLLIN
PLLIN
A
= 25°C. V
< f
> f
OSC
OSC
The
●
CC
denotes the specifications which apply over the full operating
= V
RUN/SS
Note 3: The IC is tested in a feedback loop that servoes the error amplifier
output voltage to its midrange point (V
Note 4: Dynamic supply current is higher due to the gate charge being
delivered at the switching frequency. See Applications Information.
Note 5: The minimum on-time condition corresponds to an inductor peak-
to-peak ripple current of ≥ 40% of I
considerations in the Applications Information Section).
Note 6: This IC includes overtemperature protection that is intended to
protect the device during momentary overload conditions.
Overtemperature protection becomes active at a junction temperature
greater than the maximum operating temperature. Continuous operation
above the specified maximum operating junction temperature may impair
device reliability.
= 5V unless otherwise noted.
MAX
MIN
ITH
(see minimum on-time
= 1.2V).
120
240
TYP
50
20
20
30
60
1
MAX
UNITS
3731hfa
Deg
Deg
Deg
Deg
kΩ
µA
µA
V