LTC3407
W W
U W
ABSOLUTE AXI U RATI GS
(Note 1)
Junction Temperature (Note 5)............................. 125°C
Storage Temperature Range
VIN Voltages.................................................–0.3V to 6V
VFB1, VFB2, RUN1, RUN2
LTC3407EMSE ................................. – 65°C to 150°C
LTC3407EDD .................................... – 65°C to 125°C
Lead Temperature (Soldering, 10 sec)
Voltages ..................................... –0.3V to VIN + 0.3V
MODE/SYNC Voltage ...................... –0.3V to VIN + 0.3V
SW1, SW2 Voltage ......................... –0.3V to VIN + 0.3V
POR Voltage ................................................–0.3V to 6V
Ambient Operating Temperature
LTC3407EMSE only.......................................... 300°C
Range (Note 2) ................................... –40°C to 85°C
U
W
U
PACKAGE/ORDER I FOR ATIO
ORDER PART
ORDER PART
TOP VIEW
TOP VIEW
NUMBER
NUMBER
V
1
2
3
4
5
10
9
V
FB2
V
1
2
3
4
5
10
9
V
FB2
FB1
FB1
RUN1
RUN2
POR
RUN1
RUN2
POR
LTC3407EDD
LTC3407EMSE
V
SW1
GND
11
8
IN
11
V
8
7
6
SW2
MODE/
SYNC
IN
SW1
GND
7
SW2
6
MODE/
SYNC
MSE PACKAGE
10-LEAD PLASTIC MSOP
DD PART MARKING
LAGK
MSE PART MARKING
LTABA
DD PACKAGE
EXPOSED PAD IS PGND (PIN 11)
MUST BE CONNECTED TO GND
10-LEAD (3mm × 3mm) PLASTIC DFN
EXPOSED PAD IS PGND (PIN 11)
MUST BE CONNECTED TO GND
TJMAX = 125°C, θJA = 45°C/W, θJC = 10°C/W
TJMAX = 125°C, θJA = 45°C/W, θJC = 10°C/W
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
5.5
UNITS
V
V
Operating Voltage Range
Feedback Pin Input Current
Feedback Voltage (Note 3)
●
●
2.5
IN
I
30
nA
FB
V
0°C ≤ T ≤ 85°C
0.588
0.585
0.6
0.6
0.612
0.612
V
V
FB
A
–40°C ≤ T ≤ 85°C
●
A
∆V
∆V
Reference Voltage Line Regulation
Output Voltage Load Regulation
V
= 2.5V to 5.5V (Note 3)
IN
0.3
0.5
0.5
%/V
%
LINE REG
(Note 3)
LOAD REG
I
Input DC Supply Current
Active Mode
S
V
V
= V = 0.5V
600
40
0.1
800
60
1
µA
µA
µA
FB1
FB1
FB2
Sleep Mode
Shutdown
= V = 0.63V, MODE/SYNC = 3.6V
FB2
RUN = 0V, V = 5.5V, MODE/SYNC = 0V
IN
f
f
I
Oscillator Frequency
V
= 0.6V
FBX
●
1.2
1.5
1.5
1
1.8
MHz
MHz
A
OSC
SYNC
LIM
Synchronization Frequency
Peak Switch Current Limit
V
= 3V, V
= 0.5V, Duty Cycle <35%
0.75
1.25
IN
FBX
R
Top Switch On-Resistance
Bottom Switch On-Resistance
(Note 6)
(Note 6)
0.35
0.30
0.45
0.45
Ω
Ω
DS(ON)
I
Switch Leakage Current
V
= 5V, V
= 0V, V = 0V
0.01
1
µA
SW(LKG)
IN
RUN
FBX
sn3407 3407fs
2
Linear [ Linear ]
