Storage Temperature..............................–55°C to 125°C
LGA PACKAGE
50-LEAD (11.25mm 9mm
2.82mm)
T
JMAX
= 125°C,
θ
JA
= 23.4°C/W,
θ
JC(BOTTOM)
= 9.20°C/W,
θ
JC(TOP)
= 25.10°C/W,
θ
JBOARD
= 16°C/W
θ
VALUES DETERMINED PER JESD51-9
WEIGHT = 0.93g
ORDER INFORMATION
LEAD FREE FINISH
LTM8022EV#PBF
LTM8022IV#PBF
LTM8022MPV#PBF
PART MARKING*
LTM8022V
LTM8022V
LTM8022MPV
PACKAGE DESCRIPTION
50-Pin (11.25mm
×
9mm
×
2.82mm) LGA
50-Pin (11.25mm
×
9mm
×
2.82mm) LGA
50-Pin (11.25mm
×
9mm
×
2.82mm) LGA
TEMPERATURE RANGE (Note 2)
–40°C to 85°C
–40°C to 85°C
–55°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to:
http://www.linear.com/leadfree/
This product is only offered in trays. For more information go to:
http://linear.com/packaging/
8022fd
2
LTM8022
ELECTRICAL CHARACTERISTICS
SYMBOL
V
IN
V
OUT
R
ADJ(MIN)
I
OUT(MAX)
IQ
VIN
PARAMETER
Input DC Voltage
Output DC Voltage
Minimum Allowable R
ADJ
Continuous Output DC Current
V
IN
Quiescent Current
0V < I
OUT
< 1A, R
ADJ
Open
0V < I
OUT
< 1A, R
ADJ
= 43.2k
(Note 3)
4V < V
IN
< 36V, C
OUT
= 51μF (Note 4)
V
RUN/SS
= 0.2V, R
T
= 174k
V
BIAS
= 3V, Not Switching, R
T
= 174k (E, I)
V
BIAS
= 3V, Not Switching, R
T
= 174k (MP)
V
BIAS
= 0V, Not Switching, R
T
= 174k
V
RUN/SS
= 0.2V, R
T
= 174k
V
BIAS
= 3V, Not Switching, R
T
= 174k (E, I)
V
BIAS
= 3V, Not Switching, R
T
= 174k (MP)
V
BIAS
= 0V, Not Switching, R
T
= 174k
3.6V < V
IN
< 36V, I
OUT
= 1A, V
OUT
= 3.3V
V
IN
= 24V, 0V < I
OUT
< 1A, V
OUT
= 3.3V,
C
OUT
= 51μF
V
IN
= 24V, I
OUT
= 1A, V
OUT
= 3.3V,
C
OUT
= 51μF
R
T
= 113kΩ, C
OUT
= 51μF
V
IN
= 36V, V
OUT
= 0V (Note 5)
C
OUT
= 51μF
ADJ = 1V, C
OUT
= 51μF
V
RUN/SS
= 2.5V
C
OUT
= 51μF
C
OUT
= 51μF
V
FB
Rising
V
PG
= 30V
V
PG
= 0.4V
f
SYNC
= 550kHz, C
OUT
= 51μF
f
SYNC
= 550kHz, C
OUT
= 51μF
V
SYNC
= 0V
0.1
200
0.5
0.7
730
0.1
800
1
2.5
0.2
l
l
l
The
l
denotes the specifications which apply over the full operating temp-
,
,
erature range, otherwise specifications are at T
A
= 25°C. V
IN
= 10V, V
RUN/SS
= 10V, V
BIAS
= 3V, R
T
= 60.4kΩ, C
IN
= 2.2μF C
OUT
= 4.7μF
unless otherwise specified. (Note 2)
CONDITIONS
l
MIN
3.6
TYP
0.8
10
MAX
36
UNITS
V
V
V
kΩ
42.2
0
0.1
25
25
85
0.03
50
50
1
0.1
0.4
10
325
3
765
790
1.9
2
5
10
805
2.4
1
0.5
60
350
120
0.5
120
200
5
A
μA
μA
μA
μA
μA
μA
μA
μA
%
%
mV
kHz
A
mV
V
μA
μA
V
V
mV
μA
μA
V
V
μA
IQ
BIAS
BIAS Quiescent Current
l
l
ΔV
OUT
/V
OUT
ΔV
OUT
/V
OUT
V
OUT(AC_RMS)
f
SW
I
SC(OUT)
V
ADJ
V
BIAS(MIN)
I
ADJ
I
RUN/SS
V
IH(RUN/SS)
V
IL(RUN/SS)
V
PG(TH)
I
PGO
I
PG(SINK)
V
SYNC(IL)
V
SYNC(IH)
I
SYNC(BIAS)
Line Regulation
Load Regulation
Output Ripple (RMS)
Switching Frequency
Output Short-Circuit Current
Voltage at ADJ Pin
Minimum BIAS Voltage for Proper Operation
Current Out of ADJ Pin
RUN/SS Pin Current
RUN/SS Input High Voltage
RUN/SS Input Low Voltage
PG Threshold
PG Leakage
PG Sink Current
SYNC Low Threshold
SYNC High Threshold
SYNC Pin Bias Current
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 LTM8022E is guaranteed to meet performance specifications
from 0°C to 85°C ambient. Specifications over the full –40°C to
85°C ambient operating temperature range are assured by design,
characterization and correlation with statistical process controls. The
LTM8022I is guaranteed to meet specifications over the full –40°C to 85°C
ambient operating temperature range. The LTM8022MP is guaranteed to
meet specifications over the full –55°C to 125°C temperature range. Note
that the maximum internal temperature is determined by specific operating
conditions in conjunction with board layout, the rated package thermal
resistance and other environmental factors.
Note 3:
Guaranteed by design.
Note 4:
C
OUT
= 51μF is composed of a 4.7μF ceramic capacitor and a 47μF
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