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LT1912EMSE#TRPBF

Description
IC REG BUCK ADJ 2A 10MSOP
CategoryPower/power management    The power supply circuit   
File Size359KB,24 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
Download Datasheet Parametric Compare View All

LT1912EMSE#TRPBF Overview

IC REG BUCK ADJ 2A 10MSOP

LT1912EMSE#TRPBF Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?conform to
MakerLinear ( ADI )
Parts packaging codeMSOP
package instructionHTSSOP, TSSOP10,.19,20
Contacts10
Manufacturer packaging codeMSE
Reach Compliance Codecompliant
ECCN codeEAR99
Other featuresALSO OPERATES IN ADJUSTABLE MODE FROM 0.79 TO 20 V
Analog Integrated Circuits - Other TypesSWITCHING REGULATOR
control modeCURRENT-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage36 V
Minimum input voltage3.6 V
Nominal input voltage10 V
JESD-30 codeS-PDSO-G10
JESD-609 codee3
length3 mm
Humidity sensitivity level1
Number of functions1
Number of terminals10
Maximum operating temperature125 °C
Minimum operating temperature
Maximum output current4.2 A
Package body materialPLASTIC/EPOXY
encapsulated codeHTSSOP
Encapsulate equivalent codeTSSOP10,.19,20
Package shapeSQUARE
Package formSMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height1.1 mm
surface mountYES
Switch configurationBUCK
Maximum switching frequency240 kHz
technologyBIPOLAR
Temperature levelOTHER
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch0.5 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width3 mm
LT1912
36V, 2A, 500kHz Step-Down
Switching Regulator
FEATURES
DESCRIPTION
The LT
®
1912 is an adjustable frequency (200kHz to 500kHz)
monolithic step-down switching regulator that accepts
input voltages up to 36V. A high efficiency 0.25Ω switch
is included on the die along with a boost Schottky diode
and the necessary oscillator, control and logic circuitry.
Current mode topology is used for fast transient response
and good loop stability. The LT1912 allows the use of
ceramic capacitors resulting in low output ripple while
keeping total solution size to a minimum. The low current
shutdown mode reduces input supply current to less than
1µA while a resistor and capacitor on the RUN/SS pin
provide a controlled output voltage ramp (soft-start). The
LT1912 is available in 10-pin MSOP and 3mm
×
3mm DFN
packages with exposed pads for low thermal resistance.
L,
LT, LTC, LTM, Burst Mode, Linear Technology and the Linear logo are registered trademarks
and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
Wide Input Range: Operation From 3.6V to 36V
2A Maximum Output Current
Adjustable Switching Frequency: 200kHz to 500kHz
Low Shutdown Current: I
Q
< 1µA
Integrated Boost Diode
Synchronizable Between 250kHz to 500kHz
Saturating Switch Design: 0.25Ω On-Resistance
0.790V Feedback Reference Voltage
Output Voltage: 0.79V to 20V
Soft-Start Capability
Small 10-Pin Thermally Enhanced MSOP and
(3mm
×
3mm) DFN Packages
APPLICATIONS
Automotive Battery Regulation
Set-Top Box
Distributed Supply Regulation
Industrial Supplies
Wall Transformer Regulation
TYPICAL APPLICATION
3.3V Step-Down Converter
V
IN
4.5V TO 36V
V
IN
OFF ON
20k
4.7µF
470pF
68.1k
RUN/SS
BD
BOOST
EFFICIENCY (%)
0.47µF
V
C
R
T
316k
100k
47µF
LT1912
SW
6.8µH
80
70
60
50
0
1912 TA01
Efficiency
V
OUT
3.3V
2A
100
90
V
OUT
= 5V
V
OUT
= 3.3V
SYNC
GND
FB
V
IN
= 12V
L = 6.8µF
F = 500kHz
0.5
1.0
1.5
LOAD CURRENT (A)
2
1912 TA01b
1912fa
1

LT1912EMSE#TRPBF Related Products

LT1912EMSE#TRPBF LT1912EDD#PBF LT1912EDD#TRPBF LT1912EMSE#PBF
Description IC REG BUCK ADJ 2A 10MSOP IC REG BUCK ADJ 2A 10DFN IC REG BUCK ADJ 2A 10DFN IC REG BUCK ADJ 2A 10MSOP
Brand Name Linear Technology Linear Technology Linear Technology Linear Technology
Is it Rohs certified? conform to conform to conform to conform to
Maker Linear ( ADI ) Linear ( ADI ) Linear ( ADI ) Linear ( ADI )
Parts packaging code MSOP DFN DFN MSOP
package instruction HTSSOP, TSSOP10,.19,20 HVSON, SOLCC10,.12,20 HVSON, SOLCC10,.12,20 HTSSOP, TSSOP10,.19,20
Contacts 10 10 10 10
Manufacturer packaging code MSE DD DD MSE
Reach Compliance Code compliant compliant compliant compliant
ECCN code EAR99 EAR99 EAR99 EAR99
Other features ALSO OPERATES IN ADJUSTABLE MODE FROM 0.79 TO 20 V ALSO OPERATES IN ADJUSTABLE MODE FROM 0.79 TO 20 V ALSO OPERATES IN ADJUSTABLE MODE FROM 0.79 TO 20 V ALSO OPERATES IN ADJUSTABLE MODE FROM 0.79 TO 20 V
Analog Integrated Circuits - Other Types SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR
control mode CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE
Control Technology PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Maximum input voltage 36 V 36 V 36 V 36 V
Minimum input voltage 3.6 V 3.6 V 3.6 V 3.6 V
Nominal input voltage 10 V 10 V 10 V 10 V
JESD-30 code S-PDSO-G10 S-PDSO-N10 S-PDSO-N10 S-PDSO-G10
JESD-609 code e3 e3 e3 e3
length 3 mm 3 mm 3 mm 3 mm
Humidity sensitivity level 1 1 1 1
Number of functions 1 1 1 1
Number of terminals 10 10 10 10
Maximum operating temperature 125 °C 125 °C 125 °C 125 °C
Maximum output current 4.2 A 4.2 A 4.2 A 4.2 A
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code HTSSOP HVSON HVSON HTSSOP
Encapsulate equivalent code TSSOP10,.19,20 SOLCC10,.12,20 SOLCC10,.12,20 TSSOP10,.19,20
Package shape SQUARE SQUARE SQUARE SQUARE
Package form SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius) 260 260 260 260
Certification status Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height 1.1 mm 0.8 mm 0.8 mm 1.1 mm
surface mount YES YES YES YES
Switch configuration BUCK BUCK BUCK BUCK
Maximum switching frequency 240 kHz 240 kHz 240 kHz 240 kHz
technology BIPOLAR BIPOLAR BIPOLAR BIPOLAR
Temperature level OTHER OTHER OTHER OTHER
Terminal surface Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn)
Terminal form GULL WING NO LEAD NO LEAD GULL WING
Terminal pitch 0.5 mm 0.5 mm 0.5 mm 0.5 mm
Terminal location DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature 30 30 30 30
width 3 mm 3 mm 3 mm 3 mm
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