LTC3879 Linear Technology Corporation, LTC3879 Datasheet - Page 4

• Manufacturer Part Number: LTC3879
• Description: Wide Operating Range No RSENSE Step-Down Controller
• Manufacturer: Linear Technology Corporation

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LTC3879
SYMBOL
Internal V
PGOOD Output
ELECTRICAL CHARACTERISTICS
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: T
dissipation P
Note 3: The LTC3879 is tested in a feedback loop that adjusts V
achieve a specifi ed error amplifi er output voltage (I
4
temperature range, otherwise specifi cations are at T
T
J
= T
J
A
CC
is calculated from the ambient temperature T
+ (P
Regulator
D
, as follows:
D
• θ
JA
PARAMETER
Internal V
Internal V
PGOOD Upper Threshold
PGOOD Lower Threshold
PGOOD Hysteresis
PGOOD Low Voltage
PGOOD Turn-On Delay
)
CC
CC
Voltage
Load Regulation
TH
).
A
and power
A
= 25°C. V
FB
CONDITIONS
6V < V
I
V
V
V
I
CC
PGOOD
FB
FB
FB
to
= 0mA to 20mA
The
Rising
Falling
Returning
IN
= 5mA
l
< 38V
IN
denotes the specifi cations which apply over the full operating
= 15V, unless otherwise noted.
Note 4: The LTC3879E is guaranteed to meet specifi cations from
0°C to 85°C. Specifi cations over the –40°C to 85°C operating temperature
range are assured by design, characterization and correlation with
statistical process controls. The LTC3879I is guaranteed to meet
specifi cations over the full –40°C to 85°C operating temperature range.
Note 5: Rise and fall time are measured using 10% and 90% levels. Delay
times are measured using 50% levels.
MIN
5.15
–7.8
7.8
–0.1
0.15
TYP
–10
5.3
10
12
2
–12.2
MAX
5.45
12.2
3.8
0.4
±2
UNITS
3879f
μs
%
%
%
%
V
V