LTC3611EWP LINER [Linear Technology], LTC3611EWP Datasheet - Page 4

• Manufacturer Part Number: LTC3611EWP
• Description: 10A, 32V Monolithic Synchronous Step-Down DC/DC Converter
• Manufacturer: LINER [Linear Technology]

LTC3611
ELECTRICAL CHARACTERISTICS
SYMBOL
Internal V
V
ΔV
V
ΔV
ΔV
PGOOD Output
ΔV
ΔV
ΔV
V
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
200mV/DIV
4
temperature range, otherwise specifi cations are at T
TYPICAL PERFORMANCE CHARACTERISTICS
INTVCC
EXTVCC
PGL
LDO(LOADREG)
EXTVCC
EXTVCC(HYS)
FBH
FBL
FB(HYS)
T
effective thermal conductivity test board)
θ
bottom of the package)
5A/DIV
5A/DIV
I
J
JC
V
LOAD
= T
OUT
= 1°C/W (θ
IL
J
A
CC
LOAD STEP 0A TO 8A
V
V
FCB = 0
FIGURE 6 CIRCUIT
is calculated from the ambient temperature T
Transient Response
+ (P
IN
OUT
D
Regulator
= 25V
as follows:
D
= 2.5V
• 28°C/W) (θ
JC
is simulated when heatsink is applied at the
PARAMETER
Internal V
Internal V
EXTV
EXTV
EXTV
PGOOD Upper Threshold
PGOOD Lower Threshold
PGOOD Hysteresis
PGOOD Low Voltage
40μs/DIV
CC
CC
CC
JA
Switchover Voltage
Switch Drop Voltage
Switchover Hysteresis
CC
CC
is simulated per JESD51-7 high
Voltage
Load Regulation
3611 G01
200mV/DIV
A
5A/DIV
5A/DIV
and power
I
V
LOAD
OUT
A
IL
= 25°C. V
Transient Response
(Discontinuous Mode)
LOAD = 1A TO 10A
V
V
FCB = INTV
FIGURE 6 CIRCUIT
CONDITIONS
6V < V
I
I
I
V
V
V
I
IN
OUT
CC
CC
CC
PGOOD
FB
FB
FB
= 25V
= 0mA to 20mA, V
= 20mA, V
= 20mA, V
The
= 2.5V
Rising
Falling
Returning
IN
= 5mA
l
CC
IN
< 30V, V
denotes the specifi cations which apply over the full operating
= 15V unless otherwise noted.
EXTVCC
EXTVCC
40μs/DIV
Note 3: The LTC3611 is tested in a feedback loop that adjusts V
achieve a specified error amplifier output voltage (I
85°C is not tested in production. This specification is assured by design,
characterization, and correlation to testing at 125°C.
Note 4: The LTC3611E is guaranteed to meet performance specifications
from 0°C to 125°C. Specifications over the –40°C to 125°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls. The LTC3611I is guaranteed over the full
–40°C to 125°C operating temperature range.
EXTVCC
Rising
= 5V
EXTVCC
= 4V
= 4V
3611 G02
RUN/SS
2V/DIV
1V/DIV
5A/DIV
l
l
V
OUT
I
L
Start-Up
V
V
R
FIGURE 6 CIRCUIT
MIN
4.7
4.5
IN
OUT
–7
LOAD
7
= 25V
= 2.5V
= 0.5Ω
TYP
–0.1
0.15
500
150
–10
4.7
10
5
1
TH
40ms/DIV
). The specification at
MAX
300
–13
5.6
2.5
0.4
±2
13
FB
to
UNITS
3611fb
m/V
m/V
3611 G03
%
%
%
%
V
V
V