Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
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://www.linear.com/packaging/
8023fb
2
LTM8023
ELECTRICAL CHARACTERISTICS
SYMBOL
V
IN
V
OUT
R
ADJ(MIN)
I
OUT
IQ
VIN
PARAMETER
Input DC Voltage
Output DC Voltage
Minimum Allowable R
ADJ
Continuous Output DC Current
V
IN
Quiescent Current
0A < I
OUT
≤ 2A, R
ADJ
Open, C
OUT
= 51μF (Note 3)
0A < I
OUT
≤ 2A, R
ADJ
= 43.2k, C
OUT
= 51μF (Note 3)
(Note 4)
4 ≤ V
IN
≤ 36, C
OUT
= 51μF
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
5 ≤ V
IN
≤ 36, I
OUT
= 1A, V
OUT
= 3.3V, C
OUT
= 51μF
V
IN
= 24V, 0 ≤ I
OUT
≤ 2A, V
OUT
= 3.3V, C
OUT
= 51μF
V
IN
= 24V, I
OUT
= 2A, V
OUT
= 3.3V, C
OUT
= 51μF
R
T
= 113k, C
OUT
= 51μF
V
IN
= 36V, V
OUT
= 0V
C
OUT
= 51μF
l
l
l
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 10V, V
RUN/SS
= 10V, V
BIAS
= 3V, R
T
= 60.4k, C
OUT
= 4.7μF unless
otherwise specified.
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
2.9
765
790
2.3
805
2.8
2
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
IQ
BIAS
BIAS Quiescent Current
l
l
ΔV
OUT
/V
OUT
ΔV
OUT
/V
OUT
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
PGSINK
V
SYNCIL
V
SYNCIH
I
SYNCBIAS
Line Regulation
Load Regulation
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 Input Low Threshold
SYNC Input High Threshold
SYNC Pin Bias Current
V
OUT(AC_RMS)
Output Ripple (RMS)
ADJ = 1V, C
OUT
= 51μF
V
RUN/SS
= 2.5V
C
OUT
= 51μF
C
OUT
= 51μF
V
OUT
Rising
V
PG
= 30V
V
PG
= 0.4V
f
SYNC
= 550kHz, C
OUT
= 51μF
f
SYNC
= 550kHz, C
OUT
= 51μF
V
SYNC
= 0V
200
0.5
2.5
2
5
10
0.2
730
0.1
800
0.7
0.1
1
μA
V
V
mV
μA
μA
V
V
μA
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 LTM8023E 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
LTM8023I is guaranteed to meet specifications over the full –40°C to 85°C
ambient operating temperature range. The LTM8023MP 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:
C
OUT
= 51μF is composed of a 4.7μF ceramic capacitor in parallel
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