LTC3407-2 Linear Technology, LTC3407-2 Datasheet - Page 2

• Manufacturer Part Number: LTC3407-2
• Description: 2.25MHz Step-Down DC/DC Regulator
• Manufacturer: Linear Technology

ABSOLUTE AXI U RATI GS
LTC3407-2
(Note 1)
V
V
MODE/SYNC Voltage ...................... – 0.3V to V
SW1, SW2 Voltage ......................... – 0.3V to V
POR Voltage ................................................– 0.3V to 6V
PACKAGE/ORDER I FOR ATIO
Consult LTC Marketing for parts specified with wider operating temperature ranges.
temperature range, otherwise specifications are at T
SYMBOL
V
I
V
∆V
∆V
I
f
f
I
R
I
2
ELECTRICAL CHARACTERISTICS
FB
S
OSC
SYNC
LIM
SW(LKG)
IN
FB
DS(ON)
IN
FB1
LINE REG
LOAD REG
Voltages ..................................... – 0.3V to V
RUN1
T
SW1
10-LEAD (3mm × 3mm) PLASTIC DFN
V
GND
JMAX
Voltages.................................................– 0.3V to 6V
FB1
V
, V
DD PIN 11, EXPOSED PAD: PGND
IN
MUST BE CONNECTED TO GND
= 125°C, θ
FB2
1
2
3
4
5
, RUN1, RUN2
DD PACKAGE
TOP VIEW
JA
11
= 45°C/W, θ
PARAMETER
Operating Voltage Range
Feedback Pin Input Current
Feedback Voltage (Note 3)
Reference Voltage Line Regulation
Output Voltage Load Regulation
Input DC Supply Current
Oscillator Frequency
Synchronization Frequency
Peak Switch Current Limit
Top Switch On-Resistance
Bottom Switch On-Resistance
Switch Leakage Current
W
Active Mode
Sleep Mode
Shutdown
10
9
8
7
6
JC
= 10°C/W
V
RUN2
POR
SW2
MODE/
SYNC
FB2
W W
U
DD PART MARKING
LTC3407EDD-2
ORDER PART
NUMBER
W
LBFB
U
A
= 25°C. V
IN
IN
IN
(Note 6)
(Note 6)
CONDITIONS
0°C ≤ T
–40°C ≤ T
V
(Note 3)
V
V
RUN = 0V, V
V
V
V
IN
FB1
FB1
FBX
IN
IN
+ 0.3V
+ 0.3V
+ 0.3V
The
= 2.5V to 5.5V (Note 3)
= 3V, V
= 5V, V
= V
= V
= 0.6V
U
A
FB2
FB2
●
IN
≤ 85°C
A
denotes the specifications which apply over the full operating
FBX
RUN
= 3.6V, unless otherwise specified. (Note 2)
= 0.5V
= 0.63V, MODE/SYNC = 3.6V
≤ 85°C
IN
= 5.5V, MODE/SYNC = 0V
= 0.5V, Duty Cycle <35%
= 0V, V
Ambient Operating Temperature
Junction Temperature (Note 5) ............................. 125°C
Storage Temperature Range ................. – 65°C to 125°C
Lead Temperature (Soldering, 10 sec)
Reflow Peak Body Temperature ............................ 260°C
T
RUN1
JMAX
V
SW1
GND
MSE PIN 11, EXPOSED PAD: PGND
Range (Note 2) ................................... – 40°C to 85°C
LTC3407-2EMSE only ...................................... 300°C
V
FB1
MUST BE CONNECTED TO GND
IN
= 125°C, θ
FBX
10-LEAD PLASTIC MSOP
1
2
3
4
5
= 0V
MSE PACKAGE
TOP VIEW
JA
11
= 45°C/W, θ
10
9
8
7
6
JC
= 10°C/W
V
RUN2
POR
SW2
MODE/
SYNC
FB2
●
●
●
●
0.588
0.585
0.95
MIN
2.5
1.8
MSE PART MARKING
www.DataSheet4U.com
LTC3407EMSE-2
2.25
2.25
0.35
0.30
0.01
TYP
700
ORDER PART
0.6
0.6
0.3
0.5
0.1
1.2
40
NUMBER
LTBDZ
0.612
0.612
MAX
0.45
0.45
950
5.5
0.5
2.7
1.6
30
60
1
1
sn34072 34072fs
UNITS
MHz
MHz
%/V
nA
µA
µA
µA
µA
%
Ω
Ω
V
V
V
A