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Datasheet> All Categories > LTC3404EMS8#TRPBF
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LTC3404EMS8#TRPBF

Description
Conv DC-DC 2.65V to 6V Synchronous Step Down Single-Out 0.8V to 6V 0.6A 8-Pin MSOP T/R
File Size205KB，16 Pages
ManufacturerADI
Websitehttps://www.analog.com
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LTC3404EMS8#TRPBF Overview

Conv DC-DC 2.65V to 6V Synchronous Step Down Single-Out 0.8V to 6V 0.6A 8-Pin MSOP T/R

LTC3404EMS8#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)1250 to 1650
Switching RegulatorYes
Number of Outputs1
Output Voltage (V)0.8 to 6
Maximum Output Current (A)0.6
Minimum Input Voltage (V)2.65
Maximum Input Voltage (V)6
Operating Supply Voltage (V)2.65 to 6
Typical Quiescent Current (uA)10
Line Regulation0.2%/V
Load Regulation0.5%
Efficiency (%)95
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier Temperature GradeExtended
PackagingTape and Reel
Pin Count8
Standard Package NameSOP
Supplier PackageMSOP
MountingSurface Mount
Package Height0.86
Package Length3
Package Width3
PCB changed8
Lead ShapeGull-wing

Preview

Download Datasheet
LTC3404
1.4MHz High Efficiency
Monolithic Synchronous
Step-Down Regulator
FEATURES
■
■
■
■
■
■
■
■
■
■
■
■
■
■
■
DESCRIPTIO
High Efficiency: Up to 95%
Very Low Quiescent Current: Only 10
μ
A
During Operation
600mA Output Current at V
IN
= 3.3V
2.65V to 6V Input Voltage Range
1.4MHz Constant Frequency Operation
No Schottky Diode Required
Low Dropout Operation: 100% Duty Cycle
Synchronizable from 1MHz to 1.7MHz
Selectable Burst Mode
®
Operation or
Pulse Skipping Mode
0.8V Reference Allows Low Output Voltages
Shutdown Mode Draws < 1μA Supply Current
±2%
Output Voltage Accuracy
Current Mode Control for Excellent Line and
Load Transient Response
Overcurrent and Overtemperature Protected
Available in 8-Lead MSOP Package
The LTC
®
3404 is a high efficiency monolithic synchro-
nous buck regulator using a constant frequency, current
mode architecture. Supply current during operation is
only 10μA and drops to < 1μA in shutdown. The 2.65V to
6V input voltage range makes the LTC3404 ideally suited
for single Li-Ion battery-powered applications. 100% duty
cycle provides low dropout operation, extending battery
life in portable systems.
Switching frequency is internally set at 1.4MHz, allowing
the use of small surface mount inductors and capacitors.
For noise sensitive applications the LTC3404 can be
externally synchronized from 1MHz to 1.7MHz. Burst
Mode operation is inhibited during synchronization or
when the SYNC/MODE pin is pulled low, preventing low
frequency ripple from interfering with audio circuitry.
The internal synchronous switch increases efficiency and
eliminates the need for an external Schottky diode. Low
output voltages are easily supported with the 0.8V feed-
back reference voltage. The LTC3404 is available in a
space saving 8-lead MSOP package.
For higher input voltage (11V abs max) applications, refer
to the LTC1877 data sheet.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
Burst Mode is a registered trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
APPLICATIO S
■
■
■
■
■
■
Cellular Telephones
Wireless and DSL Modems
Personal Information Appliances
Portable Instruments
Distributed Power Systems
Battery-Powered Equipment
TYPICAL APPLICATIO
V
IN
2.65V
TO 6V
7
10μF***
CER
6
1
2
47pF
SYNC
V
IN
RUN
I
TH
GND V
FB
4
3
SW
5
Efficiency vs Output Load Current
100
95
EFFICIENCY (%)
High Efficiency Step-Down Converter
4.7μH*
20pF
V
OUT
†
3.3V
22μF**
CER
90
85
80
75
LTC3404
887k
280k
3404 TA01
*TOKO D52LC A914BYW-4R7M
**TAIYO-YUDEN CERAMIC JMK325BJ226MM
***TAIYO-YUDEN CERAMIC LMK325BJ106MN
†
V
OUT
CONNECTED TO V
IN
FOR 2.65V < V
IN
< 3.3V
70
0.1
U
V
IN
= 3.6V
V
IN
= 4.2V
V
IN
= 6V
Burst Mode OPERATION
V
OUT
= 3.3V
L = 4.7μH
1
10
LOAD (mA)
100
1000
3404 TA02
U
U
3404fb
1

LTC3404EMS8#TRPBF Related Products

LTC3404EMS8#TRPBF LTC3404EMS8#PBF LTC3404EMS8#TR LTC3404EMS8 LTC3404IMS8#PBF LTC3404IMS8#TRPBF LTC3404MPMS8#PBF LTC3404MPMS8#TR LTC3404MPMS8#TRPBF LTC3404MPMS8
Description Conv DC-DC 2.65V to 6V Synchronous Step Down Single-Out 0.8V to 6V 0.6A 8-Pin MSOP T/R Conv DC-DC 2.65V to 6V Synchronous Step Down Single-Out 0.8V to 6V 0.6A 8-Pin MSOP Tube Conv DC-DC 2.65V to 6V Synchronous Step Down Single-Out 0.8V to 6V 0.6A 8-Pin MSOP T/R Conv DC-DC 2.65V to 6V Synchronous Step Down Single-Out 0.8V to 6V 0.6A 8-Pin MSOP Conv DC-DC 2.65V to 6V Synchronous Step Down Single-Out 0.8V to 6V 0.6A Automotive 8-Pin MSOP Tube Conv DC-DC 2.65V to 6V Synchronous Step Down Single-Out 0.8V to 6V 0.6A Automotive 8-Pin MSOP T/R Conv DC-DC 2.65V to 6V Synchronous Step Down Single-Out 0.8V to 6V 0.6A Automotive 8-Pin MSOP Tube Conv DC-DC 2.65V to 6V Synchronous Step Down Single-Out 0.8V to 6V 0.6A 8-Pin MSOP T/R Conv DC-DC 2.65V to 6V Synchronous Step Down Single-Out 0.8V to 6V 0.6A 8-Pin MSOP T/R Conv DC-DC 2.65V to 6V Synchronous Step Down Single-Out 0.8V to 6V 0.6A 8-Pin MSOP Tube
EU restricts the use of certain hazardous substances Compliant Compliant - - Compliant Compliant Compliant - Compliant Not Compliant
ECCN (US) EAR99 EAR99 - - EAR99 EAR99 EAR99 - EAR99 EAR99
Part Status Active Active - - Active Active Active - Active LTB
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
Type Synchronous Step Down Synchronous Step Down - - Synchronous Step Down Synchronous Step Down Synchronous Step Down - Synchronous Step Down Synchronous Step Down
Output Type Adjustable Adjustable - - Adjustable Adjustable Adjustable - Adjustable Adjustable
Switching Frequency (kHz) 1250 to 1650 1250 to 1650 - - 1250 to 1650 1250 to 1650 1250 to 1650 - 1250 to 1650 1250 to 1650
Switching Regulator Yes Yes - - Yes Yes Yes - Yes Yes
Number of Outputs 1 1 - - 1 1 1 - 1 1
Output Voltage (V) 0.8 to 6 0.8 to 6 - - 0.8 to 6 0.8 to 6 0.8 to 6 - 0.8 to 6 0.8 to 6
Maximum Output Current (A) 0.6 0.6 - - 0.6 0.6 0.6 - 0.6 0.6
Minimum Input Voltage (V) 2.65 2.65 - - 2.65 2.65 2.65 - 2.65 2.65
Maximum Input Voltage (V) 6 6 - - 6 6 6 - 6 6
Operating Supply Voltage (V) 2.65 to 6 2.65 to 6 - - 2.65 to 6 2.65 to 6 2.65 to 6 - 2.65 to 6 2.65 to 6
Typical Quiescent Current (uA) 10 10 - - 10 10 10 - 10 10
Line Regulation 0.2%/V 0.2%/V - - 0.2%/V 0.2%/V 0.2%/V - 0.2%/V 0.2%/V
Load Regulation 0.5% 0.5% - - 0.5% 0.5% 0.5% - 0.5% 0.5%
Efficiency (%) 95 95 - - 95 95 95 - 95 95
Minimum Operating Temperature (°C) -40 -40 - - -40 -40 -55 - -55 -55
Maximum Operating Temperature (°C) 85 85 - - 85 85 125 - 125 125
Supplier Temperature Grade Extended Extended - - Industrial Industrial Military - Military Military
Packaging Tape and Reel Tube - - Tube Tape and Reel Tube - Tape and Reel Tube
Pin Count 8 8 - - 8 8 8 - 8 8
Standard Package Name SOP MSOP - - MSOP MSOP MSOP - MSOP MSOP
Supplier Package MSOP MSOP - - MSOP MSOP MSOP - MSOP MSOP
Mounting Surface Mount Surface Mount - - Surface Mount Surface Mount Surface Mount - Surface Mount Surface Mount
Package Height 0.86 0.86 - - 0.86 0.86 0.86 - 0.86 0.86
Package Length 3 3 - - 3 3 3 - 3 3
Package Width 3 3 - - 3 3 3 - 3 3
PCB changed 8 8 - - 8 8 8 - 8 8
Lead Shape Gull-wing Gull-wing - - Gull-wing Gull-wing Gull-wing - Gull-wing Gull-wing

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