LTC3406-1.2 Datasheet, PDF (11/12 Pages) Linear Technology – 1.5MHz, 600mA Synchronous Step-Down Regulator in ThinSOT

LTC3406-1.2
TYPICAL APPLICATIO S
Single Li-Ion 1.2V/600mA Regulator for Lowest Profile, ≤1mm High
V_IN
2.7V TO 4.2V
C_IN**
4.7µF
CER
4
V_IN
3
SW
LTC3406-1.2
1
RUN
5
V_OUT
2.2µH^†
C_OUT1*
10µF
CER
V_OUT
1.2V
GND
340612 TA02
2
*MURATA GRM219R60JI06KE19B
**AVX06036D475MAT
†_{FDK MIPW3226D2R2M}
LTC3406-1.2 Efficiency
100
90
80
70
60
50
40
30
20
10
0
0.1
V_IN = 2.7V
V_IN = 3.6V
V_IN = 4.2V
1
10
100
LOAD (mA)
1000
340612 TA03
Load Step
V_OUT
100mV/DIV
AC COUPLED
I_LOAD
500mA/DIV
I_L
500mA/DIV
20µs/DIV
V_IN = 3.6V
I_LOAD = 20mA TO 600mA
340612 TA04
PACKAGE DESCRIPTIO
S5 Package
5-Lead Plastic TSOT-23
(Reference LTC DWG # 05-08-1635)
0.62
0.95
MAX
REF
1.22 REF
2.90 BSC
(NOTE 4)
3.85 MAX 2.62 REF
1.4 MIN
2.80 BSC
1.50 – 1.75
(NOTE 4)
RECOMMENDED SOLDER PAD LAYOUT
PER IPC CALCULATOR
0.20 BSC
DATUM ‘A’
0.09 – 0.20
(NOTE 3)
PIN ONE
0.95 BSC
0.80 – 0.90
1.00 MAX
0.30 – 0.50 REF
NOTE:
1. DIMENSIONS ARE IN MILLIMETERS
2. DRAWING NOT TO SCALE
3. DIMENSIONS ARE INCLUSIVE OF PLATING
1.90 BSC
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
0.30 – 0.45 TYP
5 PLCS (NOTE 3)
0.01 – 0.10
S5 TSOT-23 0302
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.
340612f
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