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LT1936EMS8E

Description
2.6 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8
CategoryPower/power management    The power supply circuit   
File Size305KB,20 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Parametric Compare View All

LT1936EMS8E Overview

2.6 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8

LT1936EMS8E Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?incompatible
MakerLinear ( ADI )
Parts packaging codeMSOP
package instructionHTSSOP, TSSOP8,.19
Contacts8
Manufacturer packaging codeMS8E
Reach Compliance Code_compli
ECCN codeEAR99
Analog Integrated Circuits - Other TypesSWITCHING REGULATOR
control modeCURRENT-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage36 V
Minimum input voltage3.6 V
Nominal input voltage12 V
JESD-30 codeS-PDSO-G8
JESD-609 codee0
length3 mm
Humidity sensitivity level1
Number of functions1
Number of terminals8
Maximum operating temperature70 °C
Minimum operating temperature
Maximum output current2.6 A
Package body materialPLASTIC/EPOXY
encapsulated codeHTSSOP
Encapsulate equivalent codeTSSOP8,.19
Package shapeSQUARE
Package formSMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)235
Certification statusNot Qualified
Maximum seat height1.1 mm
surface mountYES
Switch configurationBUCK
Maximum switching frequency600 kHz
Temperature levelCOMMERCIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperature20
width3 mm
LT1936
1.4A, 500kHz Step-Down
Switching Regulator
FEATURES
DESCRIPTIO
Wide Input Range: 3.6V to 36V
Short-Circuit Protected Over Full Input Range
1.9A Guaranteed Minimum Switch Current
5V at 1.4A from 10V to 36V Input
3.3V at 1.4A from 7V to 36V Input
5V at 1.2A from 6.3V to 36V Input
3.3V at 1.2A from 4.5V to 36V Input
Output Adjustable Down to 1.20V
500kHz Fixed Frequency Operation
Soft-Start
Uses Small Ceramic Capacitors
Internal or External Compensation
Low Shutdown Current: <2µA
Thermally Enhanced 8-Lead MSOP Package
The LT
®
1936 is a current mode PWM step-down DC/DC
converter with an internal 1.9A power switch, packaged in
a tiny, thermally enhanced 8-lead MSOP. The wide input
range of 3.6V to 36V makes the LT1936 suitable for
regulating power from a wide variety of sources, including
automotive batteries, 24V industrial supplies and unregu-
lated wall adapters. Its high operating frequency allows
the use of small, low cost inductors and ceramic capaci-
tors, resulting in low, predictable output ripple.
Cycle-by-cycle current limit, frequency foldback and ther-
mal shutdown provide protection against shorted outputs,
and soft-start eliminates input current surge during start-
up. Transient response can be optimized by using external
compensation components, or board space can be mini-
mized by using internal compensation. The low current
(<2µA) shutdown mode enables easy power management
in battery-powered systems.
, LTC and LT are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
APPLICATIO S
Automotive Battery Regulation
Industrial Control Supplies
Unregulated Wall Adapters
TYPICAL APPLICATIO
V
IN
4.5V TO 36V
V
IN
ON OFF
4.7µF
SHDN
LT1936
3.3V Step-Down Converter
95
0.22µF
10µH
V
IN
= 12V
V
OUT
= 5V
BOOST
SW
90
85
EFFICIENCY (%)
17.4k
COMP
V
C
FB
GND
10k
V
OUT
3.3V
1.2A
80
75
70
22µF
1936 TA01a
65
0
U
Efficiency
V
OUT
= 3.3V
0.5
1
LOAD CURRENT (A)
1.5
1936 TA01b
U
U
1936fa
1

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Description 2.6 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8 2.6 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8 2.6 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8 2.6 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8 2.6 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8 2.6 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8 2.6 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8 2.6 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8
control mode CURRENT-MODE PEAK current PEAK current CURRENT-MODE CURRENT-MODE PEAK current PEAK current PEAK current
Control Technology PULSE WIDTH MODULATION Pulse width MODULATION Pulse width MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION Pulse width MODULATION Pulse width MODULATION Pulse width MODULATION
Number of functions 1 1 1 1 1 1 1 1
Number of terminals 8 8 8 8 8 8 8 8
Maximum operating temperature 70 °C 125 Cel 125 Cel 150 °C 125 °C 125 Cel 125 Cel 125 Cel
Minimum operating temperature - -40 Cel -40 Cel -40 °C -40 °C -40 Cel -40 Cel -40 Cel
Maximum output current 2.6 A 2.6 A 2.6 A 2.6 A 2.6 A 2.6 A 2.6 A 2.6 A
surface mount YES Yes Yes YES YES Yes Yes Yes
Switch configuration BUCK BUCK BUCK BUCK BUCK BUCK BUCK BUCK
Maximum switching frequency 600 kHz 600 kHz 600 kHz 600 kHz 600 kHz 600 kHz 600 kHz 600 kHz
Temperature level COMMERCIAL AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE
Terminal form GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING
Terminal location DUAL pair pair DUAL DUAL pair pair pair
Rated input voltage - 12 V 12 V - - 12 V 12 V 12 V
Maximum limit input voltage - 36 V 36 V - - 36 V 36 V 36 V
Minimum limit input voltage - 3.6 V 3.6 V - - 3.6 V 3.6 V 3.6 V
Processing package description - Plastic, MSOP-8 Plastic, MSOP-8 - - Plastic, MSOP-8 Plastic, MSOP-8 Plastic, MSOP-8
state - ACTIVE ACTIVE - - ACTIVE ACTIVE ACTIVE
packaging shape - SQUARE SQUARE - - SQUARE SQUARE SQUARE
Package Size - SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH - - SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Terminal spacing - 0.6500 mm 0.6500 mm - - 0.6500 mm 0.6500 mm 0.6500 mm
terminal coating - tin lead tin lead - - tin lead tin lead tin lead
Packaging Materials - Plastic/Epoxy Plastic/Epoxy - - Plastic/Epoxy Plastic/Epoxy Plastic/Epoxy
Analog IC other types - switching regulator switching regulator - - switching regulator switching regulator switching regulator
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