ltm8031 Linear Technology Corporation, ltm8031 Datasheet - Page 3

• Manufacturer Part Number: ltm8031
• Description: Ultralow Noise Emc 36v, 1a Dc/dc ?module Regulator
• Manufacturer: Linear Technology Corporation

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
SYMBOL
V
V
I
I
I
ΔV
V
f
V
V
I
I
V
V
V
I
I
V
V
I
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: The LTM8031E is guaranteed to meet performance specifi cations
from 0°C to 125°C internal. Specifi cations over the –40°C to 125°C
internal temperature range are assured by design, characterization and
OUT
Q(VIN)
Q(BIAS)
V
SW
ADJ
RUN/SS
PGO
PGSINK
SYNC(BIAS)
ADJ
IN
OUT
OUT(AC_RMS)
BIAS(MIN)
IH(RUN/SS)
IL(RUN/SS)
PG(TH)
SYNCIL
SYNCIH
IN(RIPPLE)
OUT
OUT
PARAMETER
Input DC Voltage
Output DC Voltage
Continuous Output DC Current
V
BIAS Quiescent Current
Line Regulation
Load Regulation
Output Ripple (RMS)
Switching Frequency
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
ADJ Voltage Threshold for PGOOD to Switch
PGOOD Leakage
PGOOD Sink Current
SYNC Input Low Threshold
SYNC Input High Threshold
SYNC Pin Bias Current
550kHz Narrowband Conducted Emission
1MHz Narrowband Conducted Emission
3MHz Narrowband Conducted Emission
IN
Quiescent Current
A
CONDITIONS
0.2A < I
0.2A < I
V
V
V
V
V
V
V
10V ≤ V
V
V
R
V
V
V
V
f
f
V
V
5μH LISN
= 25°C. V
SYNC
SYNC
IN
RUN/SS
BIAS
BIAS
RUN/SS
BIAS
BIAS
IN
IN
RUN/SS
RUN/SS
PG
PG
SYNC
IN
T
= 113k
= 24V
= 24V, 0.2A ≤ I
= 24V, I
= 24V, V
= 30V
= 0.4V
The
= 3V, Not Switching
= 0V, Not Switching
= 3V, Not Switching
= 0V, Not Switching
= 550kHz
= 550kHz
= 0V, V
OUT
OUT
IN
= 0.2V
= 0.2V
= 0V, V
= 2.5V
≤ 36V, I
l
IN
OUT
≤ 1A, R
≤ 1A, R
OUT
denotes the specifi cations which apply over the full operating
BIAS
= 10V, V
= 1A, V
ADJ
= 3.3V, I
OUT
= 0V
correlation with statistical process controls. The LTM8031I is guaranteed
to meet specifi cations over the full –40°C to 125°C internal operating
temperature range. Note that the maximum internal temperature is
determined by specifi c operating conditions in conjunction with board
layout, the rated package thermal resistance and other environmental
factors.
Note 3: See Linear Technology Application Note 100.
OUT
= 0V, V
ADJ
ADJ
= 1A, V
≤ 1A, V
OUT
RUN/SS
Open
= 21.6k
OUT
OUT
= 3.3V
= 1A, f
OUT
OUT
= 1V
= 10V, V
= 3.3V
= 3.3V
SW
= 550kHz,
BIAS
= 3V, unless otherwise specifi ed.
l
l
l
l
MIN
765
200
3.6
2.5
0.7
0.03
TYP
325
790
730
800
0.8
0.6
0.1
0.3
1.9
0.1
0.1
10
25
88
60
83
63
51
1
6
4
5
LTM8031
MAX
120
120
815
2.8
0.2
0.5
36
60
10
1
5
1
UNITS
8031fa
dBμV
dBμV
dBμV
3
kHz
mV
mV
mV
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
%
%
V
V
V
A
V
V
V
V
V