Datasheet

15
LTC3405
3405fa
U
PACKAGE DESCRIPTIO
TYPICAL APPLICATIO S
U
Single Li-Ion to 1.8V/300mA Regulator
Using All Ceramic Capacitors Optimized for Lowest Profile, ≤1.2mm High
*
**
PANASONIC ELT5KT4R7M
TAIYO YUDEN CERAMIC JMK107BJ105MA
V
IN
C
IN
**
1µF
CER
V
IN
2.7V
TO 4.2V
LTC3405
RUN
MODE
3
4.7µH*
200k
1M
5
4
6
1
2
SW
V
FB
GND
C
OUT
**
1µF
CER
C
OUT
**
1µF
CER
V
OUT
1.8V
22pF
332k
3405 TA04a
OUTPUT CURRENT (mA)
0.1
EFFICIENCY (%)
10
1000
100
90
80
70
60
50
40
30
3405 TA04b
1 100
V
IN
= 2.7V
V
IN
= 4.2V
V
IN
= 3.6V
V
OUT
100mV/DIV
AC COUPLED
I
LOAD
200mA/DIV
I
L
200mA/DIV
40µs/DIV
V
IN
= 3.6V
I
LOAD
= 100mA TO 250mA
3405 TA04c
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
S6 Package
6-Lead Plastic TSOT-23
(Reference LTC DWG # 05-08-1636)
1.50 – 1.75
(NOTE 4)
2.80 BSC
0.30 – 0.45
6 PLCS (NOTE 3)
DATUM ‘A’
0.09 – 0.20
(NOTE 3)
S6 TSOT-23 0302
2.90 BSC
(NOTE 4)
0.95 BSC
1.90 BSC
0.80 – 0.90
1.00 MAX
0.01 – 0.10
0.20 BSC
0.30 – 0.50 REF
PIN ONE ID
NOTE:
1. DIMENSIONS ARE IN MILLIMETERS
2. DRAWING NOT TO SCALE
3. DIMENSIONS ARE INCLUSIVE OF PLATING
4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR
5. MOLD FLASH SHALL NOT EXCEED 0.254mm
6. JEDEC PACKAGE REFERENCE IS MO-193
3.85 MAX
0.62
MAX
0.95
REF
RECOMMENDED SOLDER PAD LAYOUT
PER IPC CALCULATOR
1.4 MIN
2.62 REF
1.22 REF