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LTM8020IV#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
LTM8020
1
8020fd
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
200mA, 36V DC/DC
µModule Regulator
The LTM
®
8020 is a complete 200mA, DC/DC step-down
power supply. Included in the package are the switch-
ing controller, power switches, inductor, and all support
components. Operating over an input voltage range of 4V
to 36V, the LTM8020 supports an output voltage range of
1.25V to 5V, set by a single resistor. Only bulk capacitors
are needed to finish the design. The LTM8020 meets the
radiated emissions requirements of EN55022. Conducted
emission requirements can be met by adding standard
filter components.
The low profile (2.32mm) tiny package enables utilization
of unused space on the bottom of PC boards for high
density point of load regulation.
The LTM8020 is packaged in a thermally enhanced,
compact (6.25mm × 6.25mm) and low profile (2.32mm)
over-molded land grid array (LGA) package suitable for
automated assembly by standard surface mount equip-
ment. The LTM8020 is Pb-free and RoHS compliant.
L, LT, LTC, LTM, μModule, Linear Technology, the Linear logo and Burst Mode are registered
trademarks of Linear Technology Corporation. All other trademarks are the property of their
respective owners.
Efficiency and Power Loss vs Load Current
n
Complete Step-Down Switch Mode Power Supply
n
Wide Input Voltage Range: 4V to 36V
n
1.25V to 5V Output Voltage
n
EN55022 Class B Compliant
n
200mA Output Current
n
Current Mode Control
n
–55°C to 125°C Operating Temperature
(LTM8020MPV)
n
Pb-Free (e4) RoHS Compliant Package with Gold Pad
Finish
n
Tiny, Low Profile (6.25mm × 6.25mm × 2.32mm)
Surface Mount LGA Package
n
Automotive Battery Regulation
n
Power for Portable Products
n
Distributed Supply Regulation
n
Industrial Supplies
n
Wall Transformer Regulation
6.5V
IN
to 36V
IN
, 5V at 200mA DC/DC μModule
®
Regulator
V
IN
V
OUT
LTM8020
BIASSHDN
10μF
165k
1%
2.2μF
V
IN
*6.5V TO 36V
8020 TA01
GND ADJ
V
OUT
5V
200mA
LOAD CURRENT (mA)
30
EFFICIENCY (%)
POWER LOSS (mW)
40
60
80
90
0.1 10 100
3470 TA01b
20
1
70
50
10
1
1000
100
10
0.1
*RUNNING VOLTAGE RANGE. PLEASE REFER TO APPLICATIONS INFORMATION
FOR START-UP DETAILS
LTM8020
2
8020fd
PIN CONFIGURATIONABSOLUTE MAXIMUM RATINGS
V
IN
, SHDN Voltage ....................................................40V
ADJ Voltage ................................................................5V
BIAS Voltage .............................................................25V
V
IN
+ BIAS Voltage ....................................................47V
V
OUT
Voltage .............................................................10V
Internal Operating Temperature Range .. –40°C to 125°C
Storage Temperature Range .................. –55°C to 125°C
Maximum Solder Temperature .............................. 260°C
(Note 1)
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN
Input DC Voltage
l
436V
V
OUT
Output DC Voltage
0 < I
OUT
≤ 200mA; 167kΩ < R
ADJ
< ∞
1.2 5 V
R
ADJ(MIN)
Minimum Allowable R
ADJ
(Note 3) 163
kΩ
I
LK
Leakage from IN to OUT V
SHDN
= 0V, BIAS = 0V 1.2 6 μA
I
OUT
Continuous Output DC Current 5.5V ≤ V
IN
≤ 36V, R
ADJ
= 301k, V
O
= 3.3V 0 200 mA
I
Q(VIN)
Quiescent Current into IN SHDN = 0.2V, BIAS Open
BIAS = 3V, Not Switching
BIAS = 0V, Not Switching
l
10
35
1
18
50
μA
μA
μA
I
Q(BIAS)
Quiescent Current into BIAS SHDN = 0.2V, BIAS = 0V
BIAS = 3V, Not Switching
BIAS = 0V, Not Switching
l
25
0.5
60
1.5
μA
μA
μA
ΔV
OUT
/V
OUT
Line Regulation 5V ≤ V
IN
≤ 36V, I
OUT
= 200mA, R
ADJ
Open 1 %
ΔV
OUT
/V
OUT
Load Regulation V
IN
= 24V, 0 ≤ I
OUT
≤ 200mA, V
OUT
= 3.3V 2 %
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
SHDN
= 10V, V
BIAS
= 3V, External C
IN
= 2.2μF, C
OUT
= 4.7μF.
(Note 2)
TOP VIEW
5
1
2
3
4
EAB C D
SHDN
GND
ADJ
V
OUT
BIAS
V
IN
LGA PACKAGE
21-LEAD (6.25mm s 6.25mm s 2.32mm)
T
JMAX
= 125°C, θ
JA
= 23.1°C/W
θ
JA
DERIVED FROM 5cm × 5cm PCB WITH 4 LAYERS
WEIGHT = 0.25g
LEAD FREE FINISH PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE (Note 2)
LTM8020EV#PBF LTM8020V
21-Lead (6.25mm × 6.25mm)
–40°C to 85°C
LTM8020IV#PBF LTM8020V
21-Lead (6.25mm × 6.25mm)
–40°C to 85°C
LTM8020MPV#PBF LTM8020MPV
21-Lead (6.25mm × 6.25mm)
–55°C to 125°C
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/
ORDER INFORMATION
LTM8020
3
8020fd
I
LOAD
(mA)
EFFICIENCY (%)
90
80
70
60
50
40
30
20
10
0
0.1 10 100 1000
8020 G03
1
12V
IN
24V
IN
36V
IN
I
LOAD
(mA)
EFFICIENCY (%)
90
80
70
60
50
40
30
20
10
0
0.1 10 100 1000
8020 G01
1
5V
IN
12V
IN
24V
IN
36V
IN
ELECTRICAL CHARACTERISTICS
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 LTM8020E 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
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
SHDN
= 10V, V
BIAS
= 3V, External C
IN
= 2.2μF, C
OUT
= 4.7μF.
(Note 2)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OUT(AC_RMS)
Output Ripple (RMS) I
OUT
= 100mA, V
OUT
= 3.3V, V
IN
= 24V 7.5 mV
f
SW
Switching Frequency I
OUT
= 200mA 450 kHz
I
SC
Output Short-Circuit Current V
IN
= 36V, V
OUT
= 0V 350 mA
V
ADJ
Voltage at ADJ Pin
l
1.228 1.265 V
V
BIAS(MIN)
Minimum BIAS Voltage for Proper
Operation
l
3V
I
ADJ
Current Out of ADJ Pin ADJ = 0V, V
OUT
= 5V, V
SHDN
= 0V
l
9.65 10.35 μA
I
SHDN
SHDN Pin Current V
SHDN
= 2.5V 1 5 μA
V
IH(SHDN)
SHDN Input High Voltage 2.5 V
V
IL(SHDN)
SHDN Input Low Voltage 0.2 V
LTM8020I is guaranteed to meet specifications over the full –40°C to 85°C
ambient operating temperature range. The LTM8020MP is guaranteed
to meet specifications over the full –55°C to 125°C internal operating
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: Guaranteed by design.
TYPICAL PERFORMANCE CHARACTERISTICS
3.3V
OUT
Efficiency 3.3V
OUT
Power Loss 5V
OUT
Efficiency
I
OUT
(mA)
POWER LOSS (mW)
1000
100
10
1
0.1
0.1 10 100 1000
8020 G02
1
5V
IN
12V
IN
24V
IN
36V
IN
T
A
= 25°C unless otherwise noted.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

LTM8020IV#PBF

Mfr. #:
Buy LTM8020IV#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators 36V, 200mA Step-down Module Regulator
Lifecycle:
New from this manufacturer.
Delivery:
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