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LT1933HDCB#TR

Description
Switching Regulator LT1933 - 600mA, 500kHz Step-Down Switching Regulator in SOT-23
CategoryPower/power management    The power supply circuit   
File Size354KB,20 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LT1933HDCB#TR Overview

Switching Regulator LT1933 - 600mA, 500kHz Step-Down Switching Regulator in SOT-23

LT1933HDCB#TR Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerADI
package instructionHVSON,
Reach Compliance Codenot_compliant
ECCN codeEAR99
Other featuresALSO HAS ADJUSTABLE OUTPUT DOWN TO 1.25V
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 codeR-PDSO-N6
JESD-609 codee0
length3 mm
Humidity sensitivity level1
Number of functions1
Number of terminals6
Maximum operating temperature150 °C
Minimum operating temperature-40 °C
Maximum output current1.05 A
Package body materialPLASTIC/EPOXY
encapsulated codeHVSON
Package shapeRECTANGULAR
Package formSMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)235
Certification statusNot Qualified
Maximum seat height0.8 mm
surface mountYES
Switch configurationBUCK
Maximum switching frequency600 kHz
Temperature levelAUTOMOTIVE
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formNO LEAD
Terminal pitch0.5 mm
Terminal locationDUAL
Maximum time at peak reflow temperature20
width2 mm
LT1933
600mA, 500kHz Step-Down
Switching Regulator in
SOT-23 and DFN Packages
FEATURES
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DESCRIPTION
The LT
®
1933 is a current mode PWM step-down DC/DC
converter with an internal 0.75A power switch, packaged
in a tiny 6-lead SOT-23. The wide input range of 3.6V
to 36V makes the LT1933 suitable for regulating power
from a wide variety of sources, including unregulated wall
transformers, 24V industrial supplies and automotive
batteries. Its high operating frequency allows the use of
tiny, low cost inductors and ceramic capacitors, resulting
in low, predictable output ripple.
Cycle-by-cycle current limit provides protection against
shorted outputs, and soft-start eliminates input current
surge during start up. The low current (<2μA) shutdown
provides output disconnect, enabling easy power manage-
ment in battery-powered systems.
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
Wide Input Range: 3.6V to 36V
5V at 600mA from 16V to 36V Input
3.3V at 600mA from 12V to 36V Input
5V at 500mA from 6.3V to 36V Input
3.3V at 500mA from 4.5V to 36V Input
Fixed Frequency 500kHz Operation
Uses Tiny Capacitors and Inductors
Soft-Start
Internally Compensated
Low Shutdown Current: <2μA
Output Adjustable Down to 1.25V
Low Profile (1mm) SOT-23 (ThinSOT™) and
(2mm
×
3mm
×
0.75mm) 6-Pin DFN Packages
APPLICATIONS
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Automotive Battery Regulation
Industrial Control Supplies
Wall Transformer Regulation
Distributed Supply Regulation
Battery-Powered Equipment
TYPICAL APPLICATION
Efficiency
3.3V Step-Down Converter
V
IN
4.5V TO 36V
1N4148
V
IN
BOOST
LT1933
OFF ON
SHDN
GND
SW
FB
16.5k
2.2μF
10k
MBRM140
0.1μF
22μH
EFFICIENCY (%)
85
V
OUT
= 3.3V
80
75
70
65
0
100
300
400
LOAD CURRENT (mA)
200
500
600
95
90
V
IN
= 12V
V
OUT
= 5V
V
OUT
3.3V/500mA
22μF
1933 TA01a
1933 TA01b
1933fe
1

LT1933HDCB#TR Related Products

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Description Switching Regulator LT1933 - 600mA, 500kHz Step-Down Switching Regulator in SOT-23 Switching Voltage Regulators LT1933 - 600mA, 500kHz Step-Down Switching Regulator in SOT-23 Switching Voltage Regulators 600mA, 500kHz Step-dwn DC/DC in ThinSOT Switching Voltage Regulators LT1933 - 600mA, 500kHz Step-Down Switching Regulator in SOT-23 Switching Regulator LT1933 - 600mA, 500kHz Step-Down Switching Regulator in SOT-23 Switching Regulator LT1933 - 600mA, 500kHz Step-Down Switching Regulator in SOT-23
Is it Rohs certified? incompatible incompatible conform to incompatible conform to incompatible
package instruction HVSON, 2 X 3 MM, 0.75 MM HEIGHT, PLASTIC, MO-229, DFN-6 LSSOP, LSSOP, LSSOP, 2 X 3 MM, 0.75 MM HEIGHT, PLASTIC, MO-229, DFN-6
Reach Compliance Code not_compliant compliant compliant not_compliant compliant compliant
Other features ALSO HAS ADJUSTABLE OUTPUT DOWN TO 1.25V ALSO HAS ADJUSTABLE OUTPUT DOWN TO 1.25V ALSO HAS ADJUSTABLE OUTPUT DOWN TO 1.25V ALSO HAS ADJUSTABLE OUTPUT DOWN TO 1.25V ALSO HAS ADJUSTABLE OUTPUT DOWN TO 1.25V ALSO HAS ADJUSTABLE OUTPUT DOWN TO 1.25V
Analog Integrated Circuits - Other Types SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR SWITCHING REGULATOR
control mode CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE
Control Technology PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Maximum input voltage 36 V 36 V 36 V 36 V 36 V 36 V
Minimum input voltage 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V 3.6 V
Nominal input voltage 12 V 12 V 12 V 12 V 12 V 12 V
JESD-30 code R-PDSO-N6 R-PDSO-N6 R-PDSO-G6 R-PDSO-G6 R-PDSO-G6 R-PDSO-N6
JESD-609 code e0 e0 e3 e0 e3 e0
length 3 mm 3 mm 2.95 mm 2.95 mm 2.95 mm 3 mm
Humidity sensitivity level 1 1 1 1 1 1
Number of functions 1 1 1 1 1 1
Number of terminals 6 6 6 6 6 6
Maximum operating temperature 150 °C 125 °C 125 °C 125 °C 150 °C 125 °C
Minimum operating temperature -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C
Maximum output current 1.05 A 1.05 A 1.05 A 1.05 A 1.05 A 1.05 A
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code HVSON HVSON LSSOP LSSOP LSSOP HVSON
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE SMALL OUTLINE, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, LOW PROFILE, SHRINK PITCH SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius) 235 235 260 235 260 235
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height 0.8 mm 0.8 mm 1.45 mm 1.45 mm 1.45 mm 0.8 mm
surface mount YES YES YES YES YES YES
Switch configuration BUCK BUCK BUCK BUCK BUCK BUCK
Maximum switching frequency 600 kHz 600 kHz 600 kHz 600 kHz 600 kHz 600 kHz
Temperature level AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE AUTOMOTIVE
Terminal surface Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Matte Tin (Sn) Tin/Lead (Sn/Pb) Matte Tin (Sn) Tin/Lead (Sn/Pb)
Terminal form NO LEAD NO LEAD GULL WING GULL WING GULL WING NO LEAD
Terminal pitch 0.5 mm 0.5 mm 0.95 mm 0.95 mm 0.95 mm 0.5 mm
Terminal location DUAL DUAL DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature 20 20 30 20 30 20
width 2 mm 2 mm 1.625 mm 1.625 mm 1.625 mm 2 mm
Maker ADI ADI ADI ADI - ADI
ECCN code EAR99 EAR99 - EAR99 - EAR99
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