uModule Regulator. LTM8020 Datasheet

LTM8020 Regulator. Datasheet pdf. Equivalent

LTM8020 Datasheet
Recommendation LTM8020 Datasheet
Part LTM8020
Description 36V DC/DC uModule Regulator
Feature LTM8020; LTM8020 200mA, 36V DC/DC µModule Regulator FEATURES n Complete Step-Down Switch Mode Power Supply .
Manufacture Linear Technology
Datasheet
Download LTM8020 Datasheet




Linear Technology LTM8020
LTM8020
200mA, 36V DC/DC
µModule Regulator
FEATURES
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
APPLICATIONS
n Automotive Battery Regulation
n Power for Portable Products
n Distributed Supply Regulation
n Industrial Supplies
n Wall Transformer Regulation
DESCRIPTION
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 Analog Devices, Inc. All other trademarks are the property of their respective
owners.
TYPICAL APPLICATION
6.5VIN to 36VIN, 5V at 200mA DC/DC µModule® Regulator
VIN
*6.5V TO 36V
2.2µF
VIN VOUT
LTM8020
SHDN BIAS
GND ADJ
165k
1%
VOUT
5V
200mA
10µF
8020 TA01
*RUNNING VOLTAGE RANGE. PLEASE REFER TO APPLICATIONS INFORMATION
FOR START-UP DETAILS
Efficiency and Power Loss vs Load Current
90 1000
80
70 100
60
50 10
40
30 1
20
10
0.1
1 10
LOAD CURRENT (mA)
0.1
100
3470 TA01b
For more information www.linear.com/LTM8020
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Linear Technology LTM8020
LTM8020
ABSOLUTE MAXIMUM RATINGS
(Note 1)
VIN, SHDN Voltage.....................................................40V
ADJ Voltage.................................................................5V
BIAS Voltage..............................................................25V
VIN + BIAS Voltage.....................................................47V
VOUT Voltage..............................................................10V
Internal Operating Temperature Range.... –40°C to 125°C
Storage Temperature Range................... –55°C to 125°C
Maximum Solder Temperature............................... 260°C
PIN CONFIGURATION
5
VOUT
4
3
TOP VIEW
BIAS
GND
2
VIN
1
SHDN
ADJ
AB
CDE
LGA PACKAGE
21-LEAD (6.25mm × 6.25mm × 2.32mm)
TJMAX = 125°C, θJA = 23.1°C/W
θJA DERIVED FROM 5cm × 5cm PCB WITH 4 LAYERS
WEIGHT = 0.25g
ORDER INFORMATION http://www.linear.com/product/LTM8020#orderinfo
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/. Some packages are available in 500 unit reels through
designated sales channels with #TRMPBF suffix.
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature
(Note 2)
range,
otherwise
specifications
are
at
TA
=
25°C.
VIN
=
10V,
VSHDN
=
10V,
VBIAS
=
3V,
External
CIN
=
2.2µF,
COUT
=
4.7µF.
SYMBOL
VIN
VOUT
RADJ(MIN)
ILK
IOUT
IQ(VIN)
IQ(BIAS)
DVOUT/VOUT
DVOUT/VOUT
PARAMETER
Input DC Voltage
Output DC Voltage
Minimum Allowable RADJ
Leakage from IN to OUT
Continuous Output DC Current
Quiescent Current into IN
Quiescent Current into BIAS
Line Regulation
Load Regulation
CONDITIONS
MIN TYP MAX UNITS
l4
36 V
0 < IOUT ≤ 200mA; 167kW < RADJ < ∞
(Note 3)
1.2
163
5V
kW
VSHDN = 0V, BIAS = 0V
5.5V ≤ VIN ≤ 36V, RADJ = 301k, VO = 3.3V
SHDN = 0.2V, BIAS Open
BIAS = 3V, Not Switching
BIAS = 0V, Not Switching
l
0
1.2 6
200
1
10 18
35 50
µA
mA
µA
µA
µA
SHDN = 0.2V, BIAS = 0V
BIAS = 3V, Not Switching
BIAS = 0V, Not Switching
0.5 µA
l
25 60
µA
1.5 µA
5V ≤ VIN ≤ 36V, IOUT = 200mA, RADJ Open 1 %
VIN = 24V, 0 ≤ IOUT ≤ 200mA, VOUT = 3.3V 2 %
8020fe
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Linear Technology LTM8020
LTM8020
E LECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature
(Note 2)
range,
otherwise
specifications
are
at
TA
=
25°C.
VIN
=
10V,
VSHDN = 10V, VBIAS = 3V, External CIN = 2.2µF, COUT = 4.7µF.
SYMBOL
VOUT(AC_RMS)
fSW
ISC
VADJ
VBIAS(MIN)
IADJ
ISHDN
VIH(SHDN)
VIL(SHDN)
PARAMETER
Output Ripple (RMS)
Switching Frequency
Output Short-Circuit Current
Voltage at ADJ Pin
Minimum BIAS Voltage for Proper
Operation
Current Out of ADJ Pin
SHDN Pin Current
SHDN Input High Voltage
SHDN Input Low Voltage
CONDITIONS
IOUT = 100mA, VOUT = 3.3V, VIN = 24V
IOUT = 200mA
VIN = 36V, VOUT = 0V
ADJ = 0V, VOUT = 5V, VSHDN = 0V
VSHDN = 2.5V
MIN TYP MAX UNITS
7.5 mV
450 kHz
350 mA
l 1.228
1.265
V
l3
V
l 9.65
2.5
10.35
15
0.2
µA
µA
V
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 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
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 TA = 25°C unless otherwise noted.
3.3VOUT Efficiency
90
80
70
60
50
40
30
20
10
0
0.1 1
10
ILOAD (mA)
5VIN
12VIN
24VIN
36VIN
100 1000
8020 G01
3.3VOUT Power Loss
1000
100
10
1
0.1
0.1
5VIN
12VIN
24VIN
36VIN
1 10 100 1000
IOUT (mA)
8020 G02
5VOUT Efficiency
90
80
70
60
50
40
30
20
10
0
0.1 1 10
ILOAD (mA)
12VIN
24VIN
36VIN
100 1000
8020 G03
For more information www.linear.com/LTM8020
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