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LTC3406B-2ES5#TRPBF

Description
Conv DC-DC 2.5V to 5.5V Synchronous Step Down Single-Out 0.6V to 5.5V 0.6A 5-Pin TSOT-23 T/R
File Size212KB,16 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LTC3406B-2ES5#TRPBF Overview

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

LTC3406B-2ES5#TRPBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
TypeSynchronous Step Down
Output TypeAdjustable
Switching Frequency (kHz)2700
Switching RegulatorYes
Number of Outputs1
Output Voltage (V)0.6 to 5.5
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)350
Line Regulation0.4%/V
Load Regulation0.5%(Typ)
Efficiency (%)96
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier Temperature GradeExtended
PackagingTape and Reel
Pin Count5
Standard Package NameSOT
Supplier PackageTSOT-23
MountingSurface Mount
Package Height0.9(Max)
Package Length2.9
Package Width1.75(Max)
PCB changed5
Lead ShapeGull-wing
LTC3406B-2
2.25MHz, 600mA
Synchronous Step-Down
Regulator in ThinSOT
TM
FEATURES
DESCRIPTIO
High Efficiency: Up to 96%
600mA Output Current at V
IN
= 3V
2.5V to 5.5V Input Voltage Range
2.25MHz Constant Frequency Operation
No Schottky Diode Required
Low Dropout Operation: 100% Duty Cycle
Low Quiescent Current: 350µA
0.6V Reference Allows Low Output Voltages
Shutdown Mode Draws < 1µA Supply Current
Current Mode Operation for Excellent Line and
Load Transient Response
Overtemperature Protected
Low Profile (1mm) SOT-23 Package
The LTC
®
3406B-2 is a high efficiency monolithic synchro-
nous buck regulator using a constant frequency, current
mode architecture. Supply current with no load is 350µA,
dropping to <1µA in shutdown. The 2.5V to 5.5V input
voltage range makes the LTC3406B-2 ideally suited for
single Li-Ion battery-powered applications. 100% duty
cycle capability provides low dropout operation, extend-
ing battery life in portable systems. PWM pulse skipping
mode operation provides very low output ripple voltage for
noise sensitive applications.
The switching frequency is internally set at 2.25MHz, allow-
ing the use of tiny surface mount inductors and capacitors.
The internal synchronous switch increases efficiency and
eliminates the need for an external Schottky diode. Low
output voltages are easily supported with the 0.6V feedback
reference voltage. The LTC3406B-2 is available in a low pro-
file (1mm) SOT-23 package. Refer to LTC3406 for appli-
cations that require Burst Mode
®
operation.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Burst Mode is a registered trademark of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
Protected by U.S. Patents, including 6580258, 5481178.
APPLICATIO S
Cellular Telephones
Personal Information Appliances
Wireless and DSL Modems
Digital Still Cameras
MP3 Players
Portable Instruments
TYPICAL APPLICATIO
High Efficiency Step-Down Converter
100
V
IN
2.7V
TO 5.5V
2.2µH*
V
IN
4.7µF
CER
SW
22pF
1M
10µF
CER
V
OUT
1.8V
600mA
90
80
V
OUT
= 1.8V
T
A
= 25°C
LTC3406B-2
RUN
GND
V
FB
EFFICIENCY (%)
70
60
50
40
30
20
10
0.1
V
IN
= 4.2V
1
100
10
OUTPUT CURRENT (mA)
1000
3406B TA01b
499k
3406B TA01a
U
Efficiency vs Load Current
V
IN
= 3.6V
V
IN
= 2.7V
sn3406b2 3406b2fs
U
U
1

LTC3406B-2ES5#TRPBF Related Products

LTC3406B-2ES5#TRPBF LTC3406B-2ES5#TRMPBF LTC3406B-2ES5
Description Conv DC-DC 2.5V to 5.5V Synchronous Step Down Single-Out 0.6V to 5.5V 0.6A 5-Pin TSOT-23 T/R Conv DC-DC 2.5V to 5.5V Synchronous Step Down Single-Out 0.6V to 5.5V 0.6A 5-Pin TSOT-23 T/R Conv DC-DC 2.5V to 5.5V Synchronous Step Down Single-Out 0.6V to 5.5V 0.6A 5-Pin TSOT-23
EU restricts the use of certain hazardous substances Compliant Compliant Not Compliant
ECCN (US) EAR99 EAR99 EAR99
Part Status Active Active Unconfirmed
HTS 8542.39.00.01 8542.39.00.01 8542.39.00.01
Type Synchronous Step Down Synchronous Step Down Synchronous Step Down
Output Type Adjustable Adjustable Adjustable
Switching Frequency (kHz) 2700 2700 2700
Switching Regulator Yes Yes Yes
Number of Outputs 1 1 1
Output Voltage (V) 0.6 to 5.5 0.6 to 5.5 0.6 to 5.5
Maximum Output Current (A) 0.6 0.6 0.6
Minimum Input Voltage (V) 2.5 2.5 2.5
Maximum Input Voltage (V) 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
Typical Quiescent Current (uA) 350 350 350
Line Regulation 0.4%/V 0.4%/V 0.4%/V
Load Regulation 0.5%(Typ) 0.5%(Typ) 0.5%(Typ)
Efficiency (%) 96 96 96
Minimum Operating Temperature (°C) -40 -40 -40
Maximum Operating Temperature (°C) 85 85 85
Supplier Temperature Grade Extended Extended Extended
Pin Count 5 5 5
Standard Package Name SOT SOT SOT-23
Supplier Package TSOT-23 TSOT-23 TSOT-23
Mounting Surface Mount Surface Mount Surface Mount
Package Height 0.9(Max) 0.9(Max) 0.9(Max)
Package Length 2.9 2.9 2.9
Package Width 1.75(Max) 1.75(Max) 1.75(Max)
PCB changed 5 5 5
Lead Shape Gull-wing Gull-wing Gull-wing
Packaging Tape and Reel Tape and Reel -
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