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LTC3531ES6-3.3#TRPBF

Description
Conv DC-DC 1.8V to 5.5V Synchronous Non-Inverting/Inverting/Step Up/Step Down Single-Out 3.3V 0.2A 6-Pin TSOT-23 T/R
File Size533KB,16 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric View All

LTC3531ES6-3.3#TRPBF Overview

Conv DC-DC 1.8V to 5.5V Synchronous Non-Inverting/Inverting/Step Up/Step Down Single-Out 3.3V 0.2A 6-Pin TSOT-23 T/R

LTC3531ES6-3.3#TRPBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
TypeSynchronous Non-Inverting|Inverting|Step Up|Step Down
Output TypeFixed
Switching RegulatorYes
Number of Outputs1
Output Voltage (V)3.3
Maximum Output Current (A)0.2
Minimum Input Voltage (V)1.8
Maximum Input Voltage (V)5.5
Operating Supply Voltage (V)1.8 to 5.5
Typical Quiescent Current (uA)16
Efficiency (%)90
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier Temperature GradeExtended
PackagingTape and Reel
Pin Count6
Standard Package NameSOT
Supplier PackageTSOT-23
MountingSurface Mount
Package Height0.9(Max)
Package Length2.9
Package Width1.75(Max)
PCB changed6
Lead ShapeGull-wing
LTC3531/
LTC3531-3.3/LTC3531-3
200mA Buck-Boost
Synchronous DC/DC
Converters
FEATURES
DESCRIPTIO
Regulated Output with Input Above, Below or Equal
to the Output
Single Inductor
Up to 90% Efficiency
V
IN
Range: 1.8V to 5.5V
200mA at 3.3V
OUT
from 3.6V Input
125mA at 3V
OUT
from 2.5V Input
Fixed V
OUT
Versions (TSOT, DFN): 3.3V, 3V
Adjustable V
OUT
Version (DFN): 2V to 5V
Burst Mode
®
Operation, No External Compensation
Ultra Low Quiescent Current: 16μA, Shutdown
Current <1μA
Only 3 External Components Required
(Fixed Voltage Versions)
Short-Circuit Protection
Output Disconnect in Shutdown
Available in 6-Pin ThinSOT and 3mm
×
3mm DFN
Packages
The LTC
®
3531/LTC3531-3.3/LTC3531-3 are synchronous
buck-boost DC/DC converters that operate from input
voltages above, below or equal to the output voltage. The
topology incorporated in the ICs provides a continuous
transfer through all operating modes, making the product
ideal for single cell Li-Ion and multicell alkaline or nickel
applications. The converters operate in Burst Mode, mini-
mizing solution footprint and component count as well as
providing high conversion efficiency over a wide range of
load currents.
The devices include two 0.5Ω N-channel MOSFET switches
and two P-channel switches (0.5Ω, 0.8Ω). Quiescent
current is typically 16μA, making the parts ideal for bat-
tery power applications. Other features include a <1μA
shutdown current, current limiting, thermal shutdown
and output disconnect. The parts are offered in a 6-pin
ThinSOT
TM
package for fixed voltage versions or a 3mm
×
3mm DFN package for fixed and adjustable versions.
, LT, LTC and LTM 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.
All other trademarks are the property of their respective owners.
Protected by U.S. Patents including 6166527.
APPLICATIO S
Handheld Instruments
MP3 Players
Handheld computers
PDA/GPS
TYPICAL APPLICATIO
10μH
SW1
V
IN
100
95
90
EFFICIENCY (%)
V
IN
3.1V TO
4.2V
Li-Ion
SW2
V
OUT
V
OUT
3.3V
160mA
10μF
SHDN
GND
70
3531 TA01a
85
80
75
+
LTC3531-3.3
2.2μF
65
ON OFF
60
1.5
2
2.5
3.3V
OUT
AT 100mA
3 3.5 4 4.5
INPUT VOLTAGE (V)
5
5.5
U
Efficiency vs V
IN
BOOST
MODE
BUCK
MODE
4SW
MODE
3531 TA01b
U
U
3531fb
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