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LTC3407EDD-2

Description
1.6 A DUAL SWITCHING CONTROLLER, 2700 kHz SWITCHING FREQ-MAX, PDSO10
CategoryPower/power management    The power supply circuit   
File Size220KB,16 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Related ProductsFound5parts with similar functions to LTC3407EDD-2
Download Datasheet Parametric Compare View All

LTC3407EDD-2 Overview

1.6 A DUAL SWITCHING CONTROLLER, 2700 kHz SWITCHING FREQ-MAX, PDSO10

LTC3407EDD-2 Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?incompatible
MakerLinear ( ADI )
Parts packaging codeDFN
package instructionHVSON, SOLCC10,.12,20
Contacts10
Manufacturer packaging codeDD
Reach Compliance Code_compli
ECCN codeEAR99
Other featuresOUTPUT VOLTAGE IS ADJUSTABLE FROM 0.6V TO 5V
Analog Integrated Circuits - Other TypesDUAL SWITCHING CONTROLLER
control modeCURRENT-MODE
Maximum input voltage5.5 V
Minimum input voltage2.5 V
Nominal input voltage3.6 V
JESD-30 codeS-PDSO-N10
JESD-609 codee0
length3 mm
Humidity sensitivity level1
Number of functions1
Number of terminals10
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Maximum output current1.6 A
Package body materialPLASTIC/EPOXY
encapsulated codeHVSON
Encapsulate equivalent codeSOLCC10,.12,20
Package shapeSQUARE
Package formSMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)235
Certification statusNot Qualified
Maximum seat height0.8 mm
surface mountYES
Switch configurationBUCK
Maximum switching frequency2700 kHz
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formNO LEAD
Terminal pitch0.5 mm
Terminal locationDUAL
Maximum time at peak reflow temperature20
width3 mm
LTC3407-2
Dual Synchronous, 800mA,
2.25MHz Step-Down
DC/DC Regulator
FEATURES
DESCRIPTIO
High Efficiency: Up to 95%
Very Low Quiescent Current: Only 40µA
2.25MHz Constant Frequency Operation
High Switch Current: 1.2A on Each Channel
No Schottky Diodes Required
Low R
DS(ON)
Internal Switches: 0.35Ω
Current Mode Operation for Excellent Line
and Load Transient Response
Short-Circuit Protected
Low Dropout Operation: 100% Duty Cycle
Ultralow Shutdown Current: I
Q
< 1µA
Output Voltages from 5V down to 0.6V
Power-On Reset Output
Externally Synchronizable Oscillator
Small Thermally Enhanced MSOP and 3mm
×
3mm
DFN Packages
The LTC
®
3407-2 is a dual, constant frequency, synchro-
nous step down DC/DC converter. Intended for low power
applications, it operates from 2.5V to 5.5V input voltage
range and has a constant 2.25MHz switching frequency,
allowing the use of tiny, low cost capacitors and inductors
with a profile
≤1.2mm.
Each output voltage is adjustable
from 0.6V to 5V. Internal synchronous 0.35Ω, 1.2A power
switches provide high efficiency without the need for
external Schottky diodes.
A user selectable mode input is provided to allow the user
to trade-off noise ripple for low power efficiency. Burst
Mode
®
operation provides high efficiency at light loads,
while Pulse Skip Mode provides low noise ripple at light
loads.
To further maximize battery life, the P-channel MOSFETs
are turned on continuously in dropout (100% duty cycle),
and both channels draw a total quiescent current of only
40µA. In shutdown, the device draws <1µA.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Burst Mode is a registered trademark of Linear Technology Corporation.
APPLICATIO S
PDAs/Palmtop PCs
Digital Cameras
Cellular Phones
Portable Media Players
PC Cards
Wireless and DSL Modems
TYPICAL APPLICATIO
V
IN
= 2.5V*
TO 5.5V
C1
10µF
RUN2
V
IN
RUN1
POR
R5
100k
RESET
EFFICIENCY (%)
MODE/SYNC
L2
2.2µH
SW2
C5, 22pF
LTC3407-2
V
OUT2
= 2.5V
AT 800mA
L1
2.2µH
SW1
C4, 22pF
V
OUT1
= 1.8V
AT 800mA
C3
10µF
R4
887k
V
FB2
R3
280k
GND
V
FB1
R2
R1 604k
301k
C2
10µF
C1, C2, C3: TAIYO YUDEN JMK316BJ106ML
L1, L2: MURATA LQH32CN2R2M33
*V
OUT
CONNECTED TO V
IN
FOR V
IN
2.8V
3407 TA01
Figure 1. 2.5V/1.8V at 800mA Step-Down Regulators
sn34072 34072fs
U
LTC3407-2 Efficiency Curve
100
95
90
85
80
75
70
65
60
1
V
IN
= 3.3V
Burst Mode OPERATION
NO LOAD ON OTHER CHANNEL
10
100
LOAD CURRENT (mA)
1000
3407 TA02
U
U
2.5V
1.8V
1

LTC3407EDD-2 Related Products

LTC3407EDD-2 LTC3407-2 LTC3407EMSE-2
Description 1.6 A DUAL SWITCHING CONTROLLER, 2700 kHz SWITCHING FREQ-MAX, PDSO10 1.6 A DUAL SWITCHING CONTROLLER, 2700 kHz SWITCHING FREQ-MAX, PDSO10 1.6 A DUAL SWITCHING CONTROLLER, 2700 kHz SWITCHING FREQ-MAX, PDSO10
control mode CURRENT-MODE PEAK current CURRENT-MODE
Number of functions 1 1 1
Number of terminals 10 10 10
Maximum operating temperature 85 °C 85 Cel 85 °C
Minimum operating temperature -40 °C -40 Cel -40 °C
Maximum output current 1.6 A 1.6 A 1.6 A
surface mount YES Yes YES
Switch configuration BUCK BUCK BUCK
Maximum switching frequency 2700 kHz 2700 kHz 2700 kHz
Temperature level INDUSTRIAL INDUSTRIAL INDUSTRIAL
Terminal form NO LEAD NO GULL WING
Terminal location DUAL pair DUAL
Brand Name Linear Technology - Linear Technology
Is it Rohs certified? incompatible - incompatible
Maker Linear ( ADI ) - Linear ( ADI )
Parts packaging code DFN - MSOP
package instruction HVSON, SOLCC10,.12,20 - PLASTIC, MSOP-10
Contacts 10 - 10
Manufacturer packaging code DD - MSE
Reach Compliance Code _compli - _compli
ECCN code EAR99 - EAR99
Other features OUTPUT VOLTAGE IS ADJUSTABLE FROM 0.6V TO 5V - OUTPUT VOLTAGE IS ADJUSTABLE FROM 0.6V TO 5V
Analog Integrated Circuits - Other Types DUAL SWITCHING CONTROLLER - DUAL SWITCHING CONTROLLER
Maximum input voltage 5.5 V - 5.5 V
Minimum input voltage 2.5 V - 2.5 V
Nominal input voltage 3.6 V - 3.6 V
JESD-30 code S-PDSO-N10 - S-PDSO-G10
JESD-609 code e0 - e0
length 3 mm - 3 mm
Humidity sensitivity level 1 - 1
Package body material PLASTIC/EPOXY - PLASTIC/EPOXY
encapsulated code HVSON - HTSSOP
Encapsulate equivalent code SOLCC10,.12,20 - TSSOP10,.19,20
Package shape SQUARE - SQUARE
Package form SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE - SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius) 235 - 235
Certification status Not Qualified - Not Qualified
Maximum seat height 0.8 mm - 1.1 mm
technology CMOS - CMOS
Terminal surface Tin/Lead (Sn/Pb) - Tin/Lead (Sn/Pb)
Terminal pitch 0.5 mm - 0.5 mm
Maximum time at peak reflow temperature 20 - 20
width 3 mm - 3 mm

LTC3407EDD-2 Similar Products

Part Number Manufacturer Description
LTC3407EDD-2#TR Linear ( ADI ) LTC3407-2 - Dual Synchronous, 800mA, 2.25MHz Step-Down DC/DC Regulator; Package: DFN; Pins: 10; Temperature Range: -40°C to 85°C
LTC3407IDD-2 Linear ( ADI ) IC 1.6 A DUAL SWITCHING CONTROLLER, 2700 kHz SWITCHING FREQ-MAX, PDSO10, 3 X 3 MM, PLASTIC, M0-229WEED-2, DFN-10, Switching Regulator or Controller
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