ltm8022 Linear Technology Corporation, ltm8022 Datasheet - Page 3

• Manufacturer Part Number: ltm8022
• Description: 1a, 36v Dc/dc ?module
• Manufacturer: Linear Technology Corporation

ELECTRICAL CHARACTERISTICS
erature range, otherwise specifi cations are at T
unless otherwise specifi ed. (Note 2)
SYMBOL
V
V
R
I
IQ
IQ
ΔV
ΔV
V
f
I
V
V
I
I
V
V
V
I
I
V
V
I
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.
OUT(MAX)
SW
SC(OUT)
ADJ
RUN/SS
PGO
PG(SINK)
SYNC(BIAS)
ADJ
IN
OUT
OUT(AC_RMS)
BIAS(MIN)
IH(RUN/SS)
IL(RUN/SS)
PG(TH)
SYNC(IL)
SYNC(IH)
ADJ(MIN)
VIN
BIAS
OUT
OUT
/V
/V
OUT
OUT
PARAMETER
Input DC Voltage
Output DC Voltage
Minimum Allowable R
Continuous Output DC Current
V
BIAS Quiescent Current
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
IN
Quiescent Current
ADJ
A
= 25°C. V
CONDITIONS
0V < I
4V < V
V
V
V
V
V
V
3.6V < V
V
C
V
C
R
V
C
ADJ = 1V, C
V
C
C
V
V
V
f
f
V
SYNC
SYNC
RUN/SS
BIAS
BIAS
RUN/SS
BIAS
BIAS
IN
OUT
IN
OUT
T
IN
OUT
RUN/SS
OUT
OUT
FB
PG
PG
SYNC
IN
= 113kΩ, C
The
= 24V, 0V < I
= 24V, I
= 36V, V
Rising
= 30V
= 0.4V
= 51μF
= 51μF
= 51μF
= 51μF
= 51μF
= 10V, V
OUT
= 550kHz, C
= 550kHz, C
= 3V, Not Switching, R
= 0V, Not Switching, R
= 3V, Not Switching, R
= 0V, Not Switching, R
IN
= 0V
l
IN
= 0.2V, R
= 0.2V, R
= 2.5V
< 36V, C
< 1A; 43.2kΩ < R
denotes the specifi cations which apply over the full operating temp-
< 36V, I
OUT
OUT
OUT
OUT
RUN/SS
= 1A, V
= 51μF
= 0V
Note 2: The LTM8022E is guaranteed to meet performance 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.
Note 3: C
electrolytic.
OUT
OUT
T
T
OUT
OUT
OUT
= 51μF
= 174k
= 174k
< 1A, V
= 51μF (Note 3)
= 51μF
= 51μF
= 1A, V
OUT
= 10V, V
OUT
= 3.3V,
ADJ
OUT
T
T
T
T
= 51μF is composed of a 4.7μF ceramic capacitor and a 47μF
= 174k
= 174k
= 174k
= 174k
OUT
< ∞
= 3.3V,
BIAS
= 3.3V
= 3V, R
T
l
l
l
l
= 60.4kΩ, C
MIN
42.2
765
200
3.6
0.8
2.5
0.5
0
IN
0.03
TYP
325
790
730
800
= 2.2μF , C
0.1
0.1
0.4
1.9
0.1
0.1
25
85
50
10
1
3
2
5
LTM8022
MAX
120
120
805
0.5
0.5
2.4
0.2
0.7
OUT
36
10
60
10
1
5
1
= 4.7μF ,
UNITS
3
8022f
kHz
mV
mV
mV
kΩ
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
%
%
V
V
A
A
V
V
V
V
V