ltc3406es5-1.2 Linear Technology Corporation, ltc3406es5-1.2 Datasheet - Page 2

• Manufacturer Part Number: ltc3406es5-1.2
• Description: 1.5mhz, 600ma Synchronous Step-down Regulator In Thinsot
• Manufacturer: Linear Technology Corporation

ABSOLUTE AXI U RATI GS
(Note 1)
LTC3406-1.2
Input Supply Voltage .................................. – 0.3V to 6V
RUN, V
SW Voltage (DC) ......................... – 0.3V to (V
P-Channel Switch Source Current (DC) ............. 800mA
N-Channel Switch Sink Current (DC) ................. 800mA
Peak SW Sink and Source Current (V
Operating Temperature Range (Note 2) .. – 40°C to 85°C
Junction Temperature (Notes 3, 5) ...................... 125°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
temperature range, otherwise specifications are T
SYMBOL
V
∆V
∆V
I
V
V
I
f
R
R
I
V
I
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC3406E-1.2 is guaranteed to meet performance
specifications from 0°C to 70°C. Specifications over the –40°C to 85°C
operating temperature range are assured by design, characterization and
correlation with statistical process controls.
Note 3: T
dissipation P
ELECTRICAL CHARACTERISTICS
2
PK
S
OSC
LSW
RUN
OUT
LOADREG
IN
RUN
PFET
NFET
OVL
OUT
LTC3406-1.2: T
J
OUT
is calculated from the ambient temperature T
D
PARAMETER
Regulated Output Voltage
Output Overvoltage Lockout
Output Voltage Line Regulation
Peak Inductor Current
Output Voltage Load Regulation
Input Voltage Range
Input DC Bias Current
Oscillator Frequency
R
R
SW Leakage
RUN Threshold
RUN Leakage Current
according to the following formula:
Voltages................................... – 0.3V to V
Active Mode
Sleep Mode
Shutdown
DS(ON)
DS(ON)
J
= T
of P-Channel FET
of N-Channel FET
A
W
+ (P
D
)(250°C/W)
W W
IN
= 3V)........ 1.3A
CONDITIONS
I
∆V
V
V
(Note 4)
V
V
V
V
V
I
I
V
OUT
SW
SW
IN
IN
OUT
OUT
RUN
OUT
OUT
RUN
OVL
A
= 2.5V to 5.5V
= 3V, V
= 100mA
= –100mA
and power
A
= 100mA
U
= 1.08V, I
= 1.236V, I
= 1.2V
= 0V
= 0V, V
= 0V, V
= 25°C. V
= V
IN
OVL
OUT
+ 0.3V)
IN
SW
– V
The
= 1.08V, Duty Cycle < 35%
LOAD
= 5.5V
LOAD
= 0V or 5V, V
IN
OUT
IN
●
= 3.6V unless otherwise specified.
= 0A
= 0A
denotes specifications which apply over the full operating
PACKAGE/ORDER I FOR ATIO
Note 4: Dynamic supply current is higher due to the gate charge being
delivered at the switching frequency.
Note 5: This IC includes overtemperature protection that is intended to
protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking:
IN
ORDER PART NUMBER
= 5V
LTC3406ES5-1.2
T
JMAX
RUN 1
GND 2
= 125°C, θ
SW 3
http://www.linear.com/leadfree/
5-LEAD PLASTIC TSOT-23
●
●
●
●
●
●
S5 PACKAGE
JA
TOP VIEW
1.164
= 250°C/ W, θ
0.75
MIN
2.5
2.5
1.2
0.3
U
S5 PART MARKING
±0.01
±0.01
5 V
4 V
JC
6.25
0.04
0.35
TYP
300
210
1.2
0.1
1.5
0.4
20
0.5
1
1
= 90°C/ W
OUT
IN
LTBMQ
W
1.236
MAX
1.25
0.45
400
0.4
5.5
1.8
0.5
1.5
±1
±1
10
35
1
340612fa
UNITS
U
MHz
%/V
kHz
µA
µA
µA
µA
µA
%
%
Ω
Ω
V
A
V
V