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LTC3026IMSE#PBF

Description
LDO Regulator Pos 0.4V to 2.6V 1.5A 10-Pin MSOP EP Tube
File Size251KB,18 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric View All

LTC3026IMSE#PBF Overview

LDO Regulator Pos 0.4V to 2.6V 1.5A 10-Pin MSOP EP Tube

LTC3026IMSE#PBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
TypeLDO
Number of Outputs1
PolarityPositive
Output TypeAdjustable
Output Voltage (V)0.4 to 2.6
Maximum Output Current (A)1.5
Minimum Input Voltage (V)1.14
Maximum Input Voltage (V)5.5
Maximum Dropout Voltage @ Current (V)0.25@1500mA
Reference Voltage (V)0.4
Junction to Ambient40°C/W
Special FeaturesCurrent Limit|Reverse Current Protection|Short Circuit Protection|Thermal Shutdown Protection
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)125
Supplier Temperature GradeIndustrial
PackagingTube
Supplier PackageMSOP EP
Pin Count10
Standard Package NameSOP
MountingSurface Mount
Package Height0.86
Package Length3
Package Width3
PCB changed10
Lead ShapeGull-wing
LTC3026
1.5A Low Input Voltage
VLDO Linear Regulator
FeaTures
n
DescripTion
The LTC
®
3026 is a very low dropout (VLDO™) linear regula-
tor that can operate at input voltages down to 1.14V. The
device is capable of supplying 1.5A of output current with
a typical dropout voltage of only 100mV. To allow opera-
tion at low input voltages the LTC3026 includes a boost
converter that provides the necessary headroom for the
internal LDO circuitry.
Output current comes directly from the input supply to
maximize efficiency. The boost converter requires only a
small chip inductor and ceramic capacitor for operation.
Additionally, the boosted output voltage of one LTC3026
can supply the boost voltage for other LTC3026s, thus
requiring a single inductor for multiple LDOs. A user sup-
plied boost voltage can be used eliminating the need for
an inductor altogether.
The LTC3026 regulator is stable with 10µF or greater
ceramic output capacitors. The device has a low 0.4V
reference voltage which is used to program the output
voltage via two external resistors. The device also has
internal current limit, overtemperature shutdown, and
reverse output current protection. The LTC3026 is avail-
able in a small 10-lead MSOP or low profile (0.75mm)
10-lead 3mm
×
3mm DFN package.
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Input Voltage Range:
1.14V to 3.5V (with Boost Enabled)
1.14V to 5.5V (with External 5V Boost)
Low Dropout Voltage: 100mV at I
OUT
= 1.5A
Adjustable Output Range: 0.4V to 2.6V
Output Current: Up to 1.5A
Excellent Supply Rejection Even Near Dropout
Shutdown Disconnects Load from V
IN
and V
BST
Low Operating Current: I
IN
= 950µA at V
IN
= 1.5V
Low Shutdown Current:
I
IN
< 1µA (Typ), I
BST
= 0.1µA (Typ)
Stable with 10µF or Greater Ceramic Capacitors
Short-Circuit, Reverse Current Protected
Overtemperature Protected
Available in 10-Lead MSOP and 10-Lead
(3mm
×
3mm) DFN Packages
applicaTions
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High Efficiency Linear Regulator
Post Regulator for Switching Supplies
Microprocessor Supply
L,
LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks
and ThinSOT, VLDO are trademarks of Linear Technology Corporation. All other trademarks are
the property of their respective owners.
Typical applicaTion
1.2V Output Voltage from 1.5V Input Supply
150
L1
10µH
5V BOOST BST
CONVERTER
IN
4.7µF
0.4V
SW
Dropout Voltage vs Output Current
4.7µF
DROPOUT (mV)
100
V
IN
= 1.5V
+
1.2V
1.5V
2.0V
2.6V
OUT
8.06k
V
OUT
= 1.2V,
1.5A
C
OUT
10µF
50
OFF ON
SHDN
LTC3026
GND
ADJ
100k
PG
4.02k
3026 TA01a
0
0
0.5
I
OUT
(A)
1.0
1.5
3026 TA01b
L1: MURATA LQH2MCN100K02
3026ff
1
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