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LTC3124EFE#PBF

Description
Conv DC-DC 1.8V to 5.5V Synchronous Step Up Single-Out 2.5V to 15V 1.5A 16-Pin TSSOP EP Tube
File Size615KB,28 Pages
ManufacturerADI
Websitehttps://www.analog.com
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LTC3124EFE#PBF Overview

Conv DC-DC 1.8V to 5.5V Synchronous Step Up Single-Out 2.5V to 15V 1.5A 16-Pin TSSOP EP Tube

LTC3124EFE#PBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
TypeSynchronous Step Up
Output TypeAdjustable
Switching Frequency (kHz)100 to 3000
Switching RegulatorYes
Number of Outputs1
Output Voltage (V)2.5 to 15
Maximum Output Current (A)1.5
Minimum Input Voltage (V)1.8
Maximum Input Voltage (V)5.5
Operating Supply Voltage (V)1.8 to 5.5
Typical Switch Current (A)3.5
Typical Quiescent Current (uA)600
Efficiency (%)95
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)125
Supplier Temperature GradeExtended
PackagingTube
Pin Count16
Standard Package NameSOP
Supplier PackageTSSOP EP
MountingSurface Mount
Package Height0.95(Max)
Package Length5.1(Max)
Package Width4.5(Max)
PCB changed16
Lead ShapeGull-wing
LTC3124
15V, 5A 2-Phase Synchronous
Step-Up DC/DC Converter with
Output Disconnect
FEATURES
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DESCRIPTION
The
LTC
®
3124
is a dual-phase, synchronous step-up DC/
DC converter with true output disconnect and inrush
current limiting capable of providing output voltages up
to 15V. Dual-phase operation significantly reduces peak
inductor and capacitor ripple currents, minimizing induc-
tor and capacitor size. The 2.5A per phase current limit,
along with the ability to program output voltages up to 15V
make the LTC3124 well suited for a variety of demanding
applications. Once started, operation will continue with
inputs down to 500mV.
The LTC3124 switching frequency can be programmed
from 100kHz to 3MHz to optimize applications for highest
efficiency or smallest solution footprint. The oscillator can
be synchronized to an external clock for noise sensitive
applications. Selectable Burst Mode operation reduces
quiescent current to 25µA, ensuring high efficiency across
the entire load range. An internal soft-start limits inrush
current during start-up.
Other features include a <1µA shutdown current and robust
protection under short-circuit, thermal overload, and output
overvoltage conditions. The LTC3124 is offered in both
16-lead DFN and thermally-enhanced TSSOP packages.
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V
IN
Range: 1.8V to 5.5V, 500mV After Start-Up
Adjustable Output Voltage: 2.5V to 15V
1.5A Output Current for V
IN
= 5V and V
OUT
= 12V
Dual-Phase Control Reduces Output Voltage Ripple
Output Disconnects from Input When Shut Down
Synchronous Rectification: Up to 95% Efficiency
Inrush Current Limit
Up to 3MHz Programmable Switching Frequency
Synchronizable to External Clock
Selectable Burst Mode
®
Operation: 25µA I
Q
Output Overvoltage Protection
Internal Soft-Start
<1µA I
Q
in Shutdown
16-Lead, Thermally- Enhanced 3mm
×
5mm
×
0.75mm DFN and TSSOP Packages
APPLICATIONS
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RF, Microwave Power Amplifiers
Piezo Actuators
Small DC Motors, Thermal Printers
12V Analog Rail from Battery, 5V, or Backup Capacitor
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.
TYPICAL APPLICATION
5V to 12V Synchronous Boost Converter
V
IN
5V
4.7µH
SWB
4.7µH
PGNDB
CAP
V
OUTB
100nF
22µF
×2
V
OUT
12V
1.5A
EFFICIENCY (%)
100
90
80
70
60
50
40
30
20
113k
84.5k
28k
680pF
3124 TA01a
Efficiency Curve
10
Burst Mode
OPERATION
PWM
0.1
Burst Mode
OPERATION
PWM
1
POWER LOSS (W)
V
OUTA
SWA
LTC3124
PGNDA
V
IN
SGND
SD
FB
V
C
0.01
BURST PWM
10µF
4.7µF
PWM/SYNC
V
CC
RT
OFF ON
1.02M
10
0
0.01
56pF
0.001
f
SW
= 1MHz
EFFICIENCY
POWER LOSS
0.0001
0.1
1
10
100
1000
LOAD CURRENT (mA)
3124 TA01b
3124f
For more information
www.linear.com/LTC3124
1

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Description Conv DC-DC 1.8V to 5.5V Synchronous Step Up Single-Out 2.5V to 15V 1.5A 16-Pin TSSOP EP Tube Conv DC-DC 1.8V to 5.5V Synchronous Step Up Single-Out 2.5V to 15V 1.5A 16-Pin DFN EP Tube Conv DC-DC 1.8V to 5.5V Synchronous Step Up Single-Out 2.5V to 15V 1.5A 16-Pin DFN EP T/R Conv DC-DC 1.8V to 5.5V Synchronous Step Up Single-Out 2.5V to 15V 1.5A 16-Pin TSSOP EP T/R Conv DC-DC 1.8V to 5.5V Synchronous Step Up Single-Out 2.5V to 15V 1.5A 16-Pin TSSOP EP Tube Conv DC-DC 1.8V to 5.5V Synchronous Step Up Single-Out 2.5V to 15V 1.5A 16-Pin TSSOP EP T/R Conv DC-DC 1.8V to 5.5V Synchronous Step Up Single-Out 2.5V to 15V 1.5A 16-Pin DFN EP Tube 15V, 5A 2-Phase Synchronous Step-Up DC/DC Converter with Output Disconnect Conv DC-DC 1.8V to 5.5V Synchronous Step Up Single-Out 2.5V to 15V 1.5A 16-Pin TSSOP EP Tube Conv DC-DC 1.8V to 5.5V Synchronous Step Up Single-Out 2.5V to 15V 1.5A 16-Pin TSSOP EP T/R
EU restricts the use of certain hazardous substances Compliant Compliant Compliant Compliant Compliant Compliant Compliant - Compliant Compliant
ECCN (US) EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 - EAR99 EAR99
Part Status Active Active Active Active Active Active Active - Active Active
HTS 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01 - 8542.39.00.01 -
Type Synchronous Step Up Synchronous Step Up Synchronous Step Up Synchronous Step Up Synchronous Step Up Synchronous Step Up Synchronous Step Up - Synchronous Step Up Synchronous Step Up
Output Type Adjustable Adjustable Adjustable Adjustable Adjustable Adjustable Adjustable - Adjustable Adjustable
Switching Frequency (kHz) 100 to 3000 100 to 3000 100 to 3000 100 to 3000 100 to 3000 100 to 3000 100 to 3000 - 100 to 3000 100 to 3000
Switching Regulator Yes Yes Yes Yes Yes Yes Yes - Yes Yes
Number of Outputs 1 1 1 1 1 1 1 - 1 1
Output Voltage (V) 2.5 to 15 2.5 to 15 2.5 to 15 2.5 to 15 2.5 to 15 2.5 to 15 2.5 to 15 - 2.5 to 15 2.5 to 15
Maximum Output Current (A) 1.5 1.5 1.5 1.5 1.5 1.5 1.5 - 1.5 1.5
Minimum Input Voltage (V) 1.8 1.8 1.8 1.8 1.8 1.8 1.8 - 1.8 1.8
Maximum Input Voltage (V) 5.5 5.5 5.5 5.5 5.5 5.5 5.5 - 5.5 5.5
Operating Supply Voltage (V) 1.8 to 5.5 1.8 to 5.5 1.8 to 5.5 1.8 to 5.5 1.8 to 5.5 1.8 to 5.5 1.8 to 5.5 - 1.8 to 5.5 1.8 to 5.5
Typical Switch Current (A) 3.5 3.5 3.5 3.5 3.5 3.5 3.5 - 3.5 3.5
Typical Quiescent Current (uA) 600 600 600 600 600 600 600 - 600 600
Efficiency (%) 95 95 95 95 95 95 95 - 95 95
Minimum Operating Temperature (°C) -40 -40 -40 -40 -40 -40 -40 - -40 -40
Maximum Operating Temperature (°C) 125 125 125 125 150 150 125 - 125 125
Supplier Temperature Grade Extended Extended Extended Extended Automotive Automotive Industrial - Industrial Industrial
Packaging Tube Tube Tape and Reel Tape and Reel Tube Tape and Reel Tube - Tube Tape and Reel
Pin Count 16 16 16 16 16 16 16 - 16 16
Standard Package Name SOP DFN DFN SOP SOP SOP DFN - SOP SOP
Supplier Package TSSOP EP DFN EP DFN EP TSSOP EP TSSOP EP TSSOP EP DFN EP - TSSOP EP TSSOP EP
Mounting Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount - Surface Mount Surface Mount
Package Height 0.95(Max) 0.75(Max) 0.75(Max) 0.95(Max) 0.95(Max) 0.95(Max) 0.75(Max) - 0.95(Max) 0.95(Max)
Package Length 5.1(Max) 5 5 5.1(Max) 5.1(Max) 5.1(Max) 5 - 5.1(Max) 5.1(Max)
Package Width 4.5(Max) 3 3 4.5(Max) 4.5(Max) 4.5(Max) 3 - 4.5(Max) 4.5(Max)
PCB changed 16 16 16 16 16 16 16 - 16 16
Lead Shape Gull-wing No Lead No Lead Gull-wing Gull-wing Gull-wing No Lead - Gull-wing Gull-wing
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