LTM8027
absoluTe MaxiMuM raTings
(Note 1)
pin conFiguraTion
TOP VIEW
11
10
9
8
AUX 7
BIAS1 6
SS 5
RUN 4
BIAS2 3
ADJ 2
1
A B C D E F G H J K L
SYNC
RT
LGA PACKAGE
113-LEAD (15mm
×
15mm
×
4.32mm)
T
JMAX
= 125°C,
θ
JA
= 12.2°C/W,
θ
JC(TOP)
= 9.3°C/W,
θ
JC(BOTTOM)
= 3.6°C/W,
θ
JBOARD
= 7.54°C/W
θ
VALUES DETERMINED PER JESD 51-9
WEIGHT = 2.6 GRAMS
V
OUT
BANK 1
V
IN
Voltage ................................................................65V
BIAS1 ........................................................................15V
BIAS2 ........................................................................24V
SYNC, ADJ, R
T
, RUN, SS Voltages ..............................5V
Current into RUN Pin (Note 2)..................................1mA
V
OUT
, AUX .................................................................25V
Current Out of AUX ............................................. 200mA
Internal Operating Temperature (Note 3)
E-, I-Grade ......................................... –40°C to 125°C
MP-Grade .......................................... –55°C to 125°C
Maximum Soldering Temperature ......................... 245°C
Storage Temperature Range .................. –55°C to 125°C
GND
BANK 2
V
IN
BANK 3
orDer inForMaTion
LEAD FREE FINISH
LTM8027EV#PBF
LTM8027IV#PBF
LTM8027MPV#PBF
TRAY
LTM8027EV#PBF
LTM8027IV#PBF
LTM8027MPV#PBF
PART MARKING
LTM8027V
LTM8027V
LTM8027V
PACKAGE DESCRIPTION
TEMPERATURE RANGE (Note 3)
113-Lead (15mm
×
15mm
×
4.32mm) LGA –40°C to 125°C
113-Lead (15mm
×
15mm
×
4.32mm) LGA –40°C to 125°C
113-Lead (15mm
×
15mm
×
4.32mm) LGA –55°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
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/
elecTrical characTerisTics
SYMBOL
V
IN
V
OUT
I
OUT
V
IN(START)
∆V
OUT
/∆V
IN
∆V
OUT
/∆I
LOAD
V
UVLO(RISING)
V
UVLO(FALLING)
PARAMETER
Input DC Voltage
Maximum Output DC Voltage
Output DC Current
Minimum Start Voltage
Line Regulation
Load Regulation
Input Undervoltage Lockout Threshold
(Rising)
Input Undervoltage Lockout Threshold
(Falling)
The
l
denotes the specifications which apply over the full internal operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 20V, BIAS1 = BIAS2 = 10V, RUN = 2V, unless otherwise noted.
CONDITIONS
(Note 5)
0A < I
OUT
≤ 4A, V
IN
= 48V
V
IN
≤ 60V, V
OUT
= 12V, (Note 4)
V
OUT
= 12V, 15V< V
IN
< 60V, I
LOAD
= 4A
V
OUT
= 12V, V
IN
= 24V, 0A < I
LOAD
≤ 4A
(Note 5)
(Note 5)
0
0.2
0.2
4.6
3.7
l
MIN
4.5
TYP
24
MAX
60
4
7.5
UNITS
V
V
A
V
%
%
V
V
8027fb
2
LINER [ LINEAR TECHNOLOGY ]
