LTC3406B
ABSOLUTE
AXI U
RATI GS
Input Supply Voltage .................................. – 0.3V to 6V
RUN, V
FB
Voltages ..................................... – 0.3V to V
IN
SW Voltage .................................. – 0.3V to (V
IN
+ 0.3V)
P-Channel Switch Source Current (DC) ............. 800mA
N-Channel Switch Sink Current (DC) ................. 800mA
PACKAGE/ORDER I FOR ATIO
TOP VIEW
RUN 1
GND 2
SW 3
4 V
IN
5 V
FB
ORDER PART
NUMBER
LTC3406BES5
S5 PART MARKING
LTE2
RUN 1
GND 2
SW 3
S5 PACKAGE
5-LEAD PLASTIC TSOT-23
T
JMAX
= 125°C,
θ
JA
= 250°C/ W,
θ
JC
= 90°C/ W
Consult LTC Marketing for parts specified with wider operating temperature ranges.
The
●
denotes specifications which apply over the full operating
temperature range, otherwise specifications are T
A
= 25°C. V
IN
= 3.6V unless otherwise specified.
SYMBOL
I
VFB
V
FB
PARAMETER
Feedback Current
Regulated Feedback Voltage
LTC3406B (Note 4) T
A
= 25°C
LTC3406B (Note 4) 0°C
≤
T
A
≤
85°C
LTC3406B (Note 4) –40°C
≤
T
A
≤
85°C
V
IN
= 2.5V to 5.5V (Note 4)
LTC3406B-1.5
LTC3406B-1.8
∆V
OVL
= V
OVL
– V
FB
, LTC3406B
∆V
OVL
= V
OVL
– V
OUT
, LTC3406B-1.5/LTC3406B-1.8
V
IN
= 2.5V to 5.5V
V
IN
= 3V, V
FB
= 0.5V or V
OUT
= 90%,
Duty Cycle < 35%
●
●
ELECTRICAL CHARACTERISTICS
CONDITIONS
●
∆V
FB
V
OUT
∆V
OVL
∆V
OUT
I
PK
V
LOADREG
V
IN
I
S
Reference Voltage Line Regulation
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
(Note 5)
V
FB
= 0.5V or V
OUT
= 90%
V
RUN
= 0V, V
IN
= 4.2V
V
FB
= 0.6V or V
OUT
= 100%
V
FB
= 0V or V
OUT
= 0V
I
SW
= 100mA
I
SW
= –100mA
V
RUN
= 0V, V
SW
= 0V or 5V, V
IN
= 5V
●
f
OSC
R
PFET
R
NFET
I
LSW
Oscillator Frequency
R
DS(ON)
of P-Channel FET
R
DS(ON)
of N-Channel FET
SW Leakage
2
U
U
W
W W
U
W
(Note 1)
Peak SW Sink and Source Current ........................ 1.3A
Operating Temperature Range (Note 2) .. – 40°C to 85°C
Junction Temperature (Notes 3, 6) ...................... 125°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
TOP VIEW
5 V
OUT
4 V
IN
ORDER PART
NUMBER
LTC3406BES5-1.5
LTC3406BES5-1.8
S5 PART MARKING
LTE3
LTE4
S5 PACKAGE
5-LEAD PLASTIC TSOT-23
T
JMAX
= 125°C,
θ
JA
= 250°C/ W,
θ
JC
= 90°C/ W
MIN
0.5880
0.5865
0.5850
1.455
1.746
20
2.5
0.75
TYP
0.6
0.6
0.6
0.04
1.500
1.800
50
7.8
0.04
1
0.5
MAX
±30
0.6120
0.6135
0.6150
0.4
1.545
1.854
80
13
0.4
1.25
UNITS
nA
V
V
V
%/V
V
V
mV
%
%
A
%/V
●
●
●
●
2.5
300
0.1
1.2
1.5
210
0.4
0.35
±0.01
5.5
400
1
1.8
0.5
0.45
±1
V
µA
µA
MHz
kHz
Ω
Ω
µA
3406bfa
LINER [ LINEAR TECHNOLOGY ]
