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LT1534IS#TR

Description
Switching Voltage Regulators LT1534 - Ultralow Noise 2A Switching Regulator
CategoryPower/power management    The power supply circuit   
File Size227KB,16 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LT1534IS#TR Overview

Switching Voltage Regulators LT1534 - Ultralow Noise 2A Switching Regulator

LT1534IS#TR Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerADI
package instruction0.150 INCH, PLASTIC, SO-16
Reach Compliance Codecompliant
ECCN codeEAR99
Analog Integrated Circuits - Other TypesSWITCHING REGULATOR
control modeCURRENT-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage23 V
Minimum input voltage2.7 V
Nominal input voltage5 V
JESD-30 codeR-PDSO-G16
JESD-609 codee0
length9.9 mm
Humidity sensitivity level1
Number of functions1
Number of terminals16
Maximum operating temperature125 °C
Minimum operating temperature-40 °C
Maximum output current2 A
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)255
Certification statusNot Qualified
Maximum seat height1.75 mm
surface mountYES
Switch configurationBOOST
Maximum switching frequency250 kHz
Temperature levelAUTOMOTIVE
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperature40
width3.9 mm
Base Number Matches1
LT1534/LT1534-1
Ultralow Noise
2A Switching Regulators
FEATURES
s
s
s
DESCRIPTIO
s
s
s
s
s
s
s
Greatly Reduced Conducted and Radiated EMI
Low Switching Harmonic Content
Independent Control of Switch Voltage and
Current Slew Rates
2A Current Limited Power Switch
Regulates Positive and Negative Voltages
20kHz to 250kHz Oscillator Frequency
Easily Synchronized to External Clock
Wide Input Voltage Range: 2.7V to 23V
Low Shutdown Current: 12µA Typical
Easier Layout than with Conventional Switchers
APPLICATIO S
s
s
s
s
s
Precision Instrumentation Systems
Isolated Supplies for Industrial Automation
Medical Instruments
Wireless Communications
Single Board Data Acquisition Systems
The LT
®
1534/LT1534-1 are a new class of switching regula-
tor designed to reduce conducted and radiated electromag-
netic interference (EMI). Ultralow noise and EMI are achieved
by providing user control of the output switch slew rates.
Voltage and current slew rates can be independently pro-
grammed to optimize switcher harmonic content versus
efficiency. The LT1534/LT1534-1 can reduce high frequency
harmonic power by as much as 40dB with only minor losses
in efficiency.
The LT1534/LT1534-1 utilize a current mode architecture
optimized for low noise boost topologies. The ICs include a
2A power switch along with all necessary oscillator, control
and protection circuitry. Unique error amp circuitry can
regulate both positive and negative voltages. The internal
oscillator may be synchronized to an external clock for more
accurate placement of switching harmonics. Protection fea-
tures include cycle-by-cycle current limit protection, under-
voltage lockout and thermal shutdown.
Low minimum supply voltage and low supply current during
shutdown make the LT1534/LT1534-1 well suited for por-
table applications. The LT1534/LT1534-1 are available in the
16-pin narrow SO package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATION
3.3V
L1
50µH
1N5817
A
L3
50µH
C1
47µF
6.3V
×2
B
+
C
IN
33µF
6.3V
15
12
4
SHDN
SYNC
PGND
LT1534-1
R
VSL
R
T
R
CSL
11
V
C
GND
1,8,
9,16
NFB
FB
3
14
13
7
2.49k
24k
24k
V
IN
COL
2
10Ω
+
L2
1nF
+
OPTIONAL
5V
650mA
C2
47µF
3300pF
5
16.9k 6
C
T
A
50mV/DIV
7.5k
1534 TA01
220pF
6.8k
15nF
10
C
IN
: MATSUSHITA ECGCOJB330
C1, C2: MATSUSHITA ECGCOJB47O
L1, L3: COILTRONICS CTX50-4
L2: COILCRAFT B08T (28nH) OR PC TRACE
B
2mV/DIV
Figure 1. Low Noise 3.3V to 5V Boost Converter
U
5V Output Noise (BW = 100MHz)
10µs/DIV
1534 TA02
U
U
1

LT1534IS#TR Related Products

LT1534IS#TR LT1534CS#TR LT1534CS-1#PBF LT1534IS-1 LT1534IS-1#TR LT1534CS-1#TRPBF LT1534IS-1#TRPBF LT1534CS-1#TR
Description Switching Voltage Regulators LT1534 - Ultralow Noise 2A Switching Regulator Switching Voltage Regulators LT1534 - Ultralow Noise 2A Switching Regulator Switching Voltage Regulators Ultra Low Noise 2A Sw Reg Switching Voltage Regulators LT1534 - Ultralow Noise 2A Switching Regulator Switching Voltage Regulators LT1534 - Ultralow Noise 2A Switching Regulator Switching Voltage Regulators Ultra Low Noise 2A Sw Reg Switching regulator Ultralow N 2A Sw Reg Switching Regulator LT1534 - Ultralow Noise 2A Switching Regulator
Is it Rohs certified? incompatible incompatible conform to incompatible incompatible conform to conform to incompatible
package instruction 0.150 INCH, PLASTIC, SO-16 0.150 INCH, PLASTIC, SO-16 SOP, SOP, SOP, SOP, SOP, 0.150 INCH, PLASTIC, SO-16
Reach Compliance Code compliant compliant compliant not_compliant not_compliant compliant compliant compliant
Analog Integrated Circuits - Other Types SWITCHING REGULATOR SWITCHING REGULATOR 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 CURRENT-MODE CURRENT-MODE
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
Maximum input voltage 23 V 23 V 23 V 23 V 23 V 23 V 23 V 23 V
Minimum input voltage 2.7 V 2.7 V 2.7 V 2.7 V 2.7 V 2.7 V 2.7 V 2.7 V
Nominal input voltage 5 V 5 V 5 V 5 V 5 V 5 V 5 V 5 V
JESD-30 code R-PDSO-G16 R-PDSO-G16 R-PDSO-G16 R-PDSO-G16 R-PDSO-G16 R-PDSO-G16 R-PDSO-G16 R-PDSO-G16
JESD-609 code e0 e0 e3 e0 e0 e3 e3 e0
length 9.9 mm 9.9 mm 9.9 mm 9.906 mm 9.9 mm 9.9 mm 9.9 mm 9.9 mm
Humidity sensitivity level 1 1 1 1 1 1 1 1
Number of functions 1 1 1 1 1 1 1 1
Number of terminals 16 16 16 16 16 16 16 16
Maximum operating temperature 125 °C 125 °C 125 °C 125 °C 125 °C 125 °C 125 °C 125 °C
Maximum output current 2 A 2 A 2 A 2 A 2 A 2 A 2 A 2 A
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code SOP SOP SOP SOP SOP SOP SOP SOP
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE
Peak Reflow Temperature (Celsius) 255 255 260 235 235 260 260 235
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height 1.75 mm 1.75 mm 1.75 mm 1.752 mm 1.75 mm 1.75 mm 1.75 mm 1.75 mm
surface mount YES YES YES YES YES YES YES YES
Switch configuration BOOST BOOST BOOST BOOST BOOST BOOST BOOST BOOST
Maximum switching frequency 250 kHz 250 kHz 250 kHz 250 kHz 250 kHz 250 kHz 250 kHz 250 kHz
Temperature level AUTOMOTIVE OTHER OTHER AUTOMOTIVE AUTOMOTIVE OTHER AUTOMOTIVE OTHER
Terminal surface Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) MATTE TIN Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Matte Tin (Sn) Matte Tin (Sn) Tin/Lead (Sn/Pb)
Terminal form GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING
Terminal pitch 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm 1.27 mm
Terminal location DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature 40 40 30 20 20 30 30 20
width 3.9 mm 3.9 mm 3.9 mm 3.899 mm 3.9 mm 3.9 mm 3.9 mm 3.9 mm
Maker ADI ADI - ADI ADI - ADI ADI
ECCN code EAR99 EAR99 - EAR99 EAR99 - - EAR99
Base Number Matches 1 1 1 - - 1 - 1
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