LTC3407EDD-3 データシートの表示（PDF） - Linear Technology
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LTC3407EDD-3
Linear Technology
LTC3407EDD-3 Datasheet PDF : 16 Pages
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LTC3407-3
ABSOLUTE AXI U RATI GS
(Note 1)
VIN Voltages.................................................– 0.3V to 6V
VOUT1, VOUT2 Voltages .................... – 0.3V to VIN + 0.3V
RUN1, RUN2 Voltages ................................ –0.3V to VIN
MODE/SYNC Voltage .................................. – 0.3V to VIN
SW1, SW2 Voltage ......................... – 0.3V to VIN + 0.3V
POR Voltage ................................................– 0.3V to 6V
Ambient Operating Temperature
Range (Note 2) ....................................... – 40°C to 85°C
Junction Temperature (Note 5) ............................. 125°C
Storage Temperature Range ................. – 65°C to 125°C
UW U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
VOUT1 1
RUN1 2
VIN 3
SW1 4
GND 5
10 VOUT2
9 RUN2
11
8 POR
7 SW2
6 MODE/
SYNC
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
TJMAX = 125°C, θJA = 40°C/W, θJC = 10°C/W
EXPOSED PAD (PIN 11) IS PGND, MUST BE SOLDERED TO PCB GND
ORDER PART NUMBER DD PART MARKING
LTC3407EDD-3
LCJB
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 3.6V, unless otherwise specified. (Note 2)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX
VIN
Operating Voltage Range
● 3.3
5.5
VOUT1
Output Voltage (Note 3)
0°C ≤ TA ≤ 85°C
–40°C ≤ TA ≤ 85°C
1.764 1.8 1.836
● 1.755 1.8 1.836
VOUT2
Output Voltage (Note 3)
0°C ≤ TA ≤ 85°C
–40°C ≤ TA ≤ 85°C
3.234 3.3 3.366
● 3.218 3.3 3.366
∆VLINE REG Reference Voltage Line Regulation (Note 3) VIN = 3.3V to 5.5V (Channel 1)
VIN = 3.6V to 5.5V (Channel 2)
0.3
0.5
∆VLOAD REG Output Voltage Load Regulation (Note 3)
0.5
IS
Input DC Supply Current (Note 4)
Active Mode
VOUT1 = 1.5V, VOUT2 = 2.8V
Sleep Mode
VOUT1 = 1.9V, VOUT2 = 3.5V, MODE/SYNC = 3.6V
Shutdown
RUN = 0V, VIN = 5.5V, MODE/SYNC = 0V
700 950
40
60
0.1
1
fOSC
Oscillator Frequency
VOUT1 = 1.8V, VOUT2 = 3.3V
● 1.8
2.25
2.7
fSYNC
Synchronization Frequency
2.25
ILIM
Peak Switch Current Limit, Channel 1 + VIN = 3V, VOUT1 = 1.5V, VOUT2 = 2.8V,
Channel 2
Duty Cycle <35%
0.95 1.2
1.6
RDS(ON)
Top Switch On-Resistance
Bottom Switch On-Resistance
(Note 6)
(Note 6)
0.35 0.45
0.30 0.45
ISW(LKG)
POR
Switch Leakage Current
Power-On Reset Threshold
Power-On Reset On-Resistance
VIN = 5V, VRUN = 0V, VOUT1 = VOUT2 = 0V
VOUT Ramping Down, MODE/SYNC = 0V
0.01
1
–8.5
100 200
Power-On Reset Delay
262,144
VRUN
IRUN
VMODE
RUN Threshold
RUN Leakage Current
MODE Threshold Low
MODE Threshold High
● 0.3
1
1.5
●
0.01
1
0
0.5
VIN – 0.5
VIN
UNITS
V
V
V
V
V
%/V
%
µA
µA
µA
MHz
MHz
A
Ω
Ω
µA
%
Ω
Cycles
V
µA
V
V
34073fa
2
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