Datasheet

LTC3560
2
3560fb
PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS
Input Supply Voltage ................................... –0.3V to 6V
SYNC/MODE, 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 6)..... 1.2A
N-Channel Switch Sink Current (DC) (Note 6) ........ 1.2A
Peak SW Sink and Source Current (Note 6) ........... 2.1A
Operating Temperature Range (Note 2)
LTC3560E .............................................–40°C to 85°C
LTC3560I............................................–40°C to 125°C
Junction Temperature (Notes 3, 7) ...................... 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
6 SYNC/MODE
5 V
FB
4 V
IN
TOP VIEW
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
T
JMAX
= 125°C, θ
JA
= 250°C/W
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
I
VFB
Feedback Current
l
±30 nA
I
PK
Peak Inductor Current V
IN
= 3V, V
FB
= 0.5V, Duty Cycle < 35% 1.0 1.5 2.0 A
V
FB
Regulated Feedback Voltage (Note 4) E Grade
I Grade
l
l
0.588
0.582
0.6
0.6
0.612
0.618
V
V
∆V
FB
Reference Voltage Line Regulation V
IN
= 2.5V to 5.5V (Note 4) E Grade
I Grade
l
l
0.04
0.04
0.4
0.8
%/V
%/V
V
LOADREG
Output Voltage Load Regulation 0.5 %
V
IN
Input Voltage Range
l
2.5 5.5 V
I
S
Input DC Bias Current
Pulse-Skipping Mode
Burst Mode Operation
Shutdown
(Note 5)
V
FB
= 0.63V, Mode = High, I
LOAD
= 0A
V
FB
= 0.63V, Mode = Low, I
LOAD
= 0A
V
RUN
= 0V, V
IN
= 5.5V
200
16
0.1
300
30
1
µA
µA
µA
f
OSC
Oscillator Frequency V
FB
= 0.6V
l
1.8 2.25 2.7 MHz
f
SYNC
SYNC Frequency Range
l
13MHz
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 5.5V, V
IN
= 5.5V ±0.01 ±1 µA
ORDER INFORMATION
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3560ES6#PBF LTC3560ES6#TRPBF LTCFY 6-Lead Plastic TSOT-23 –40°C to 85°C
LTC3560IS6#PBF LTC3560IS6#TRPBF LTCFY 6-Lead Plastic TSOT-23 –40°C to 125°C
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container.
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/
ELECTRICAL CHARACTERISTICS
The l 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.