Datasheet

LTC3406AB
2
3406abfa
PIN CONFIGURATIONABSOLUTE MAXIMUM RATINGS
Input Supply Voltage ....................................–0.3V to 6V
RUN, V
FB
Voltages .......................................–0.3V to V
IN
SW Voltage (DC) ........................... –0.3V to (V
IN
+ 0.3V)
P-Channel Switch Source Current (DC)
(Note 7) ................................................................800mA
N-Channel Switch Sink Current (DC) (Note 7) .....800mA
Peak SW Sink and Source Current (Note 7) .............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
(Note 1)
RUN 1
GND 2
SW 3
5 V
FB
4 V
IN
TOP VIEW
S5 PACKAGE
5-LEAD PLASTIC TSOT-23
T
JMAX
= 125°C, θ
JA
= 250°C/W, θ
JC
= 90°C/W
ORDER INFORMATION
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
I
VFB
Feedback Current
●
±30 nA
V
FB
Regulated Feedback Voltage (Note 4)
●
0.5880 0.6 0.6120 V
ΔV
FB
Reference Voltage Line Regulation V
IN
= 2.5V to 5.5V (Note 4)
●
0.04 0.4 %/V
I
PK
Peak Inductor Current V
IN
= 3V, V
FB
= 0.5V
Duty Cycle < 35%
0.75 1 1.25 A
V
LOADREG
Output Voltage Load Regulation 0.5 %
V
IN
Input Voltage Range
●
2.5 5.5 V
I
S
Input DC Bias Current
Active Mode
Shutdown
(Note 5)
V
FB
= 0.63V
V
RUN
= 0V, V
IN
= 5.5V
200
0.1
300
1
μA
μA
f
OSC
Oscillator Frequency V
FB
= 0.6V
●
1.2 1.5 1.8 MHz
R
PFET
R
DS(ON)
of P-Channel FET I
SW
= 100mA 0.23 0.35
Ω
R
NFET
R
DS(ON)
of N-Channel FET I
SW
= –100mA 0.21 0.35
Ω
I
LSW
SW Leakage V
RUN
= 0V, V
SW
= 0V or 5V, V
IN
= 5V ±0.01 ±1 μA
t
SOFTSTART
Soft-Start Time V
FB
from 10% to 90% Full-scale 0.6 0.9 1.2 ms
The ● denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. V
IN
= 3.6V unless otherwise specifi ed.
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3406ABES5#PBF LTC3406ABES5#TRPBF LTCXZ 5-Lead Plastic TSOT-23 –40°C to 85°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/