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LT3759HMSE#TRPBF

Description
IC REG CTRLR MULT TOP 12MSOP
Categorysemiconductor    Power management   
File Size257KB,6 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
Download Datasheet Parametric Compare View All

LT3759HMSE#TRPBF Overview

IC REG CTRLR MULT TOP 12MSOP

LT3759HMSE#TRPBF Parametric

Parameter NameAttribute value
Output typetransistor driver
Functionboost, boost/buck
Output configurationPositive or negative to provide isolation
TopologyBoost, flyback, SEPIC
Number of outputs1
output stage1
Voltage - Power Supply (Vcc/Vdd)1.6 V ~ 42 V
Frequency - Switch100kHz ~ 1MHz
Duty cycle (maximum)-
Synchronous rectifiernone
Clock synchronizationyes
serial interface-
Control characteristicsEnable, frequency control, power good, soft start
Operating temperature-40°C ~ 150°C(TJ)
Package/casing12-TSSOP (0.118", 3.00mm wide) exposed pad
Supplier device packaging12-MSOP-EP
DEMO MANUAL DC1725A
LT3759
Wide Input Voltage Range
Boost/SEPIC/Inverting Controller
DESCRIPTION
The LT3759 is a current mode DC/DC controller operating
over an input range of 1.6V to 42V, making it well suited
for applications ranging from single-cell lithium-ion bat-
tery portable electronics to high voltage automotive and
industrial power supplies. It also exhibits low shutdown
quiescent current of 1μA, making it an ideal fit for battery
operated systems. Thanks to a novel FBX pin architecture,
the LT3759 can be connected directly to a divider from
either a positive or negative output feedback voltage to
ground. It also packs many popular features such as soft-
start, input undervoltage lockout, adjustable frequency and
synchronization in a small 12-lead exposed pad MSOP
package.
Demonstration circuit 1725A features LT3759 in a 485kHz
boost converter, designed for a 5V/2A output from a 1.8V
to 4.5V input. The demo circuit configures the shutdown
voltage at typical 1.70V, which means that the input volt-
age can be dropped to as low as 1.70V, once it starts up.
The start-up voltage is set at 2.5V but can be adjusted by
changing R1 and R2 values.
The LT3759 data sheet gives a complete description of the
part, operation and application information. The data sheet
must be read in conjunction with this quick start guide.
Design files for this circuit board are available at
http://www.linear.com/demo
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
PERFORMANCE SUMMARY
PARAMETER
Input Voltage Range, V
IN
Minimum Start-up Voltage
Switching Frequency
Output Voltage, V
OUT
Maximum Continuous Output Current, I
OUT
Output Voltage Ripple
Typical Efficiency
(T
A
= 25°C)
CONDITIONS
I
OUT
= 0mA~2A
I
OUT
= 2A
V
IN
= 1.8V~4.5V
I
OUT
= 0mA~2A
V
IN
= 1.8V~4.5V
V
IN
= 2.5V, I
OUT
= 2A
V
IN
= 4.5V, I
OUT
= 2A
4.85
2.0
60
90
MIN
1.8
485
5.0
5.15
TYP
MAX
4.5
2.5
UNITS
V
V
kHz
V
A
mV
%
dc1725af
1

LT3759HMSE#TRPBF Related Products

LT3759HMSE#TRPBF DC1725A LT3759IMSE#PBF LT3759EMSE#TRPBF LT3759HMSE#PBF LT3759IMSE#TRPBF LT3759EMSE#PBF
Description IC REG CTRLR MULT TOP 12MSOP eval board buck reg lt3759 IC REG CTRLR MULT TOP 12MSOP IC REG CTRLR MULT TOP 12MSOP IC REG CTRLR MULT TOP 12MSOP IC REG CTRLR MULT TOP 12MSOP Outputable current: - Switching operating frequency: 100kHz ~ 1MHz Output type: Transistor Driver Number of output voltage channels: 1 Function type: Step-Up, Step-Up/Step-Down Output configuration: Positive or Negative, Isolation Capable
Output type transistor driver - transistor driver transistor driver transistor driver transistor driver Transistor Driver
Function boost, boost/buck - boost, boost/buck boost, boost/buck boost, boost/buck boost, boost/buck -
Output configuration Positive or negative to provide isolation - Positive or negative to provide isolation Positive or negative to provide isolation Positive or negative to provide isolation Positive or negative to provide isolation Positive or Negative, Isolation Capable
Topology Boost, flyback, SEPIC - Boost, flyback, SEPIC Boost, flyback, SEPIC Boost, flyback, SEPIC Boost, flyback, SEPIC -
Number of outputs 1 - 1 1 1 1 -
output stage 1 - 1 1 1 1 -
Voltage - Power Supply (Vcc/Vdd) 1.6 V ~ 42 V - 1.6 V ~ 42 V 1.6 V ~ 42 V 1.6 V ~ 42 V 1.6 V ~ 42 V -
Frequency - Switch 100kHz ~ 1MHz - 100kHz ~ 1MHz 100kHz ~ 1MHz 100kHz ~ 1MHz 100kHz ~ 1MHz -
Synchronous rectifier none - none none none none -
Clock synchronization yes - yes yes yes yes -
Control characteristics Enable, frequency control, power good, soft start - Enable, frequency control, power good, soft start Enable, frequency control, power good, soft start Enable, frequency control, power good, soft start Enable, frequency control, power good, soft start -
Operating temperature -40°C ~ 150°C(TJ) - -40°C ~ 125°C (TJ) -40°C ~ 125°C (TJ) -40°C ~ 150°C(TJ) -40°C ~ 125°C (TJ) -
Package/casing 12-TSSOP (0.118", 3.00mm wide) exposed pad - 12-TSSOP (0.118", 3.00mm wide) exposed pad 12-TSSOP (0.118", 3.00mm wide) exposed pad 12-TSSOP (0.118", 3.00mm wide) exposed pad 12-TSSOP (0.118", 3.00mm wide) exposed pad -
Supplier device packaging 12-MSOP-EP - 12-MSOP-EP 12-MSOP-EP 12-MSOP-EP 12-MSOP-EP -
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