Datasheet

LTM8021
2
8021fc
ABSOLUTE MAXIMUM RATINGS
V
IN
, RUN/SS Voltage .................................................40V
RUN/SS Above V
IN
...................................................... 3V
ADJ Voltage ................................................................5V
BIAS Voltage ...............................................................7V
V
OUT
Voltage .............................................................10V
Internal Operating Temperature
Range (Note 2) .......................................–40°C to 125°C
Maximum Solder Temperature .............................. 260°C
Storage Temperature Range .................. –55°C to 125°C
(Note 1)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Input DC Voltage V
RUN/SS
= 5V, R
ADJ
= Open 3 36 V
V
OUT
Output DC Voltage 0 < I
OUT
< 500mA; R
ADJ
Open
0 < I
OUT
< 500mA; R
ADJ
= 19.1k, 0.1%
0.8
5
V
V
R
ADJ(MIN)
Minimum Allowable R
ADJ
Note 3 18
kΩ
I
LK
Leakage from IN to OUT RUN/SS = V
BIAS
= 0V, R
ADJ
Open 2.7 6 μA
I
OUT
Continuous Output DC Current 5V ≤ V
IN
≤ 36V, V
BIAS
= V
OUT
0 500 mA
I
Q(VIN)
Quiescent Current into V
IN
RUN/SS = 0.2V, V
BIAS
, R
ADJ
Open
Not Switching
0.1
1.5
1
2.5
μA
mA
I
Q(BIAS)
Quiescent Current into BIAS Not Switching 0.15 μA
ΔV
OUT
/V
OUT
Line Regulation 5V ≤ V
IN
≤ 36V, I
OUT
= 500mA
R
ADJ
= Open
0.5 %
ΔV
OUT
/V
OUT
Load Regulation V
IN
= 24V, 0 ≤ I
OUT
≤ 500mA, V
BIAS
= V
OUT
0.35 %
ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply over the full operating temp-
erature range, otherwise specifi cations are at T
A
= 25°C, V
IN
= 10V, V
RUN/SS
= 10V, V
BIAS
= 3V, R
ADJ
= 31.6k.
ORDER INFORMATION
LEAD FREE FINISH PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE (NOTE 2)
LTM8021EV#PBF LTM8021V
35-Lead (11.25mm × 6.25mm × 2.82mm)
–40°C to 125°C
LTM8021IV#PBF LTM8021V
35-Lead (11.25mm × 6.25mm × 2.82mm)
–40°C to 125°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed 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/
PIN CONFIGURATION
V
IN
BANK 1
V
OUT
BANK 2
GND
BANK 3
ADJ
BIAS
RUN/SS
HBADC
5
1
2
3
4
EF
LGA PACKAGE
35-LEAD (11.25mm s 6.25mm s 2.82mm)
G
TOP VIEW
T
JMAX
= 125°C, θ
JA
= 24.9°C/W, WEIGHT = 0.49g
θ
JA
DERIVED FROM 6.35cm × 6.35cm; 4-LAYER PCB