LTC3406B-2 Linear Technology, LTC3406B-2 Datasheet - Page 2

• Manufacturer Part Number: LTC3406B-2
• Description: (LTC3406B-1/-2) 600mA Synchronous Step-Down Regulator in ThinSOT
• Manufacturer: Linear Technology

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ABSOLUTE AXI U RATI GS
LTC3406B-1.2
(Note 1)
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
ELECTRICAL CHARACTERISTICS
2
PK
S
OSC
LSW
RUN
OUT
LOADREG
IN
PFET
NFET
RUN
4
OVL
OUT
OUT
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
Shutdown
Oscillator Frequency
R
R
SW Leakage
RUN Threshold
RUN Leakage Current
Voltages................................... – 0.3V to V
DS(ON)
DS(ON)
of P-Channel FET
of N-Channel FET
W
W W
IN
= 3V)........ 1.3A
CONDITIONS
∆V
V
V
(Note 4)
V
V
V
V
I
I
V
SW
SW
IN
IN
OUT
RUN
OUT
OUT
RUN
OVL
= 2.5V to 5.5V
= 3V, V
= 100mA
= –100mA
A
U
= 1.08V
= 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%
= 5.5V
= 0V or 5V, V
IN
OUT
IN
●
= 3.6V unless otherwise specified.
denotes specifications which apply over the full operating
PACKAGE/ORDER I FOR ATIO
Consult LTC Marketing for parts specified with wider operating temperature ranges.
T
IN
JMAX
= 5V
RUN 1
GND 2
= 125°C, θ
SW 3
5-LEAD PLASTIC TSOT-23
S5 PACKAGE
JA
TOP VIEW
= 250°C/ W, θ
●
●
●
●
●
●
JC
5 V
4 V
= 90°C/ W
OUT
IN
1.164
0.75
MIN
2.5
2.5
1.2
0.3
U
±0.01
±0.01
S5 PART MARKING
6.25
0.04
0.35
TYP
300
210
LTC3406BES5-1.2
1.2
0.1
1.5
0.4
0.5
1
1
ORDER PART
NUMBER
W
LTBMR
1.236
MAX
1.25
0.45
400
0.4
5.5
1.8
0.5
1.5
sn3406b12 3406b12fs
±1
±1
10
1
UNITS
U
MHz
%/V
kHz
µA
µA
µA
µA
%
%
Ω
Ω
V
A
V
V