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LTC3406ES5-1.2#TRM

Description
Conv DC-DC 2.5V to 5.5V Synchronous Step Down Single-Out 1.2V 0.6A 5-Pin TSOT-23 T/R
File Size181KB,12 Pages
ManufacturerADI
Websitehttps://www.analog.com
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LTC3406ES5-1.2#TRM Overview

Conv DC-DC 2.5V to 5.5V Synchronous Step Down Single-Out 1.2V 0.6A 5-Pin TSOT-23 T/R

LTC3406ES5-1.2#TRM Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesNot Compliant
ECCN (US)EAR99
Part StatusUnconfirmed
SVHCYes
SVHC Exceeds ThresholdYes
TypeSynchronous Step Down
Output TypeFixed
Switching Frequency (kHz)210(Typ)
Switching RegulatorYes
Number of Outputs1
Output Voltage (V)1.2
Maximum Output Current (A)0.6
Minimum Input Voltage (V)2.5
Maximum Input Voltage (V)5.5
Operating Supply Voltage (V)2.5 to 5.5
Typical Quiescent Current (uA)20
Line Regulation0.4%/V
Load Regulation0.5%(Typ)
Efficiency (%)90
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier Temperature GradeExtended
PackagingTape and Reel
Pin Count5
Standard Package NameSOT-23
Supplier PackageTSOT-23
MountingSurface Mount
Package Height0.9(Max)
Package Length2.9
Package Width1.75(Max)
PCB changed5
Lead ShapeGull-wing
LTC3406-1.2
1.5MHz, 600mA
Synchronous Step-Down
Regulator in ThinSOT
FEATURES
DESCRIPTIO
High Efficiency: Up to 90%
Very Low Quiescent Current: Only 20µA
600mA Output Current at V
IN
= 3V
2.5V to 5.5V Input Voltage Range
1.5MHz Constant Frequency Operation
No Schottky Diode Required
Shutdown Mode Draws < 1µA Supply Current
Current Mode Operation for Excellent Line and
Load Transient Response
Overtemperature Protected
Low Profile (1mm) ThinSOT
TM
Package
The LTC
®
3406-1.2 is a high efficiency monolithic syn-
chronous buck regulator using a constant frequency,
current mode architecture. Supply current during opera-
tion with only 20µA drops <1µA in shutdown. The 2.5V to
5.5V input voltage range makes the LTC3406-1.2 ideally
suited for single Li-Ion battery-powered applications. 100%
duty cycle provides low dropout operation, extending
battery life in portable systems. Automatic Burst Mode
operation further increases efficiency at light loads.
Switching frequency is internally set at 1.5MHz, allowing
the use of small surface mount inductors and capacitors.
The internal synchronous switch increases efficiency and
eliminates the need for an external Schottky diode. The
LTC3406-1.2 is available in a low profile (1mm) ThinSOT
package.
, LTC and LT are registered trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners. ThinSOT is a trademark of Linear
Technology Corporation. Protected by U.S. Patents including 5481178, 6580258, 6304066,
6127815, 6498466, 6611131.
APPLICATIO S
Cellular Telephones
Personal Information Appliances
Wireless and DSL Modems
Digital Still Cameras
MP3 Players
Portable Instruments
TYPICAL APPLICATIO
Efficiency and Power Loss
High Efficiency Step-Down Converter
2.2µH
V
IN
2.7V TO 5.5V
C
IN
4.7µF
CER
V
IN
SW
C
OUT
10µF
CER
340612
TA01a
100
90
EFFICIENCY
LTC3406-1.2
RUN
V
OUT
GND
EFFICIENCY (%)
V
OUT
1.2V
600mA
80
70
60
50
40
30
20
10
0
0.1
V
IN
= 2.7V
V
IN
= 3.6V
V
IN
= 4.2V
1
100
10
LOAD CURRENT (mA)
POWER LOSS
U
1
0.1
U
U
POWER LOSS (W)
0.01
0.001
0.0001
0.00001
1000
340612
TA01b
340612fa
1

LTC3406ES5-1.2#TRM Related Products

LTC3406ES5-1.2#TRM LTC3406ES5-1.2#TR LTC3406ES5-1.2#TRMPBF LTC3406ES5-1.2#TRPBF LTC3406ES5-1.2
Description Conv DC-DC 2.5V to 5.5V Synchronous Step Down Single-Out 1.2V 0.6A 5-Pin TSOT-23 T/R Conv DC-DC 2.5V to 5.5V Synchronous Step Down Single-Out 1.2V 0.6A 5-Pin TSOT-23 T/R Conv DC-DC 2.5V to 5.5V Synchronous Step Down Single-Out 1.2V 0.6A 5-Pin TSOT-23 T/R Conv DC-DC 2.5V to 5.5V Synchronous Step Down Single-Out 1.2V 0.6A 5-Pin TSOT-23 T/R Conv DC-DC 2.5V to 5.5V Synchronous Step Down Single-Out 1.2V 0.6A 5-Pin TSOT-23
EU restricts the use of certain hazardous substances Not Compliant Not Compliant Compliant Compliant Not Compliant
ECCN (US) EAR99 EAR99 EAR99 EAR99 EAR99
Part Status Unconfirmed Unconfirmed Active Active LTB
Type Synchronous Step Down Synchronous Step Down Synchronous Step Down Synchronous Step Down Synchronous Step Down
Output Type Fixed Fixed Fixed Fixed Fixed
Switching Frequency (kHz) 210(Typ) 210(Typ) 210(Typ) 210(Typ) 210(Typ)
Switching Regulator Yes Yes Yes Yes Yes
Number of Outputs 1 1 1 1 1
Output Voltage (V) 1.2 1.2 1.2 1.2 1.2
Maximum Output Current (A) 0.6 0.6 0.6 0.6 0.6
Minimum Input Voltage (V) 2.5 2.5 2.5 2.5 2.5
Maximum Input Voltage (V) 5.5 5.5 5.5 5.5 5.5
Operating Supply Voltage (V) 2.5 to 5.5 2.5 to 5.5 2.5 to 5.5 2.5 to 5.5 2.5 to 5.5
Typical Quiescent Current (uA) 20 20 20 20 20
Line Regulation 0.4%/V 0.4%/V 0.4%/V 0.4%/V 0.4%/V
Load Regulation 0.5%(Typ) 0.5%(Typ) 0.5%(Typ) 0.5%(Typ) 0.5%(Typ)
Efficiency (%) 90 90 90 90 90
Minimum Operating Temperature (°C) -40 -40 -40 -40 -40
Maximum Operating Temperature (°C) 85 85 85 85 85
Supplier Temperature Grade Extended Extended Extended Extended Extended
Pin Count 5 5 5 5 5
Standard Package Name SOT-23 SOT-23 SOT SOT SOT-23
Supplier Package TSOT-23 TSOT-23 TSOT-23 TSOT-23 TSOT-23
Mounting Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package Height 0.9(Max) 0.9(Max) 0.9(Max) 0.9(Max) 0.9(Max)
Package Length 2.9 2.9 2.9 2.9 2.9
Package Width 1.75(Max) 1.75(Max) 1.75(Max) 1.75(Max) 1.75(Max)
PCB changed 5 5 5 5 5
Lead Shape Gull-wing Gull-wing Gull-wing Gull-wing Gull-wing
SVHC Yes Yes - - Yes
SVHC Exceeds Threshold Yes Yes - - Yes
Packaging Tape and Reel Tape and Reel Tape and Reel Tape and Reel -
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