LTC3409 LINER [Linear Technology], LTC3409 Datasheet - Page 2

• Manufacturer Part Number: LTC3409
• Description: 600mA Low Vin Buck Regulator in 3mm x 3mm DFN
• Manufacturer: LINER [Linear Technology]

ABSOLUTE AXI U RATI GS
(Note 1)
LTC3409
Input Supply Voltage .................................. – 0.3V to 6V
RUN, V
SW Voltage ................................... – 0.3V to (V
Operating Temperature Range (Note 2) .. – 40°C to 85°C
Junction Temperature (Note 3) ............................ 125°C
Storage Temperature Range ................ – 65°C to 125°C
The
V
SYMBOL
V
I
V
I
V
I
V
I
∆V
∆V
∆V
I
V
V
I
f
SYNC TH
SYNC f
SYNC f
SYNC PW
t
ELECTRICAL CHARACTERISTICS
2
RUN
MODE
SYNC
VFB
PK
S
OSC
SS
RUN
MODE
SYNCTH
FB
LOADREG
IN
IN
OVL
FB
OUT
= 2.2V unless otherwise specified.
●
MIN
MAX
denotes specifications which apply over the full operating temperature range, otherwise specifications are T
FB
, MODE, SYNC Voltages . – 0.3V to (V
PARAMETER
RUN Threshold
RUN Leakage Current
MODE Threshold
MODE Leakage Current
SYNC Threshold
SYNC Leakage Current
Regulated Feedback Voltage
Feedback Current
∆V
Reference Voltage Line Regulation
Output Voltage Line Regulation
Peak Inductor Current
Output Voltage Load Regulation
Input Voltage Range
Input DC Bias Current
Nominal Oscillator Frequency
SYNC Threshold
Minimum SYNC Pin Frequency
Maximum SYNC Pin Frequency
Minimum SYNC Pulse Width
Soft-Start Period
Active Mode
Sleep Mode
Shutdown
FBOVL
Overvoltage Lockout
W
W W
CONDITIONS
(Note 4) T
(Note 4) 0°C ≤ T
(Note 4) –40°C ≤ T
∆V
(Note 4)
I
V
Duty Cycle < 35%
(Note 5)
V
V
V
SYNC = GND
SYNC = V
When SYNC Input is Toggling (Note 7)
RUN↑
OUT
IN
OUT
OUT
RUN
OVL
= 2.2V, V
U
= 100mA, 1.6V < V
= 90%, I
= 103%, I
= 0V, V
= ∆V
IN
IN
IN
A
+ 0.3V)
+ 0.3V)
FBOVL
= 25°C
FB
IN
LOAD
LOAD
= 5.5V
= 0.5V or V
A
– V
≤ 85°C
A
= 0A
= 0A
≤ 85°C
FB
IN
(Note 6)
< 5.5V
PACKAGE/ORDER I FOR ATIO
Consult LTC Marketing for parts specified with wider operating temperature ranges.
OUT
= 90%,
GND
8-LEAD (3mm × 3mm) PLASTIC DFN
V
V
V
FB
IN
IN
EXPOSED PAD (PIN 9) IS GND
T
MUST BE SOLDERED TO PCB
JMAX
1
2
3
4
= 125°C, θ
DD PACKAGE
TOP VIEW
9
JA
= 43°C/ W
●
●
●
●
●
●
●
●
8
7
6
5
SYNC
RUN
SW
MODE
0.6007
0.5992
0.5977
0.75
MIN
0.3
0.3
0.3
1.6
0.9
1.8
35
U
0.6130
0.6130
0.6130
DD PART MARKING
0.65
0.01
0.65
0.01
0.65
0.01
0.04
0.04
0.63
TYP
350
100
0.5
0.1
1.7
2.6
61
65
1
1
3
1
ORDER PART
LTC3409EDD
A
NUMBER
W
= 25°C.
LBNM
0.6252
0.6268
0.6283
MAX
±30
475
120
1.1
1.1
1.1
0.4
0.4
1.3
5.5
2.1
3.0
85
1
1
1
5
UNITS
U
MHz
MHz
MHz
MHz
3409f
%/V
%/V
mV
ms
µA
µA
µA
nA
µA
µA
µA
ns
%
V
V
V
V
V
V
A
V
V