Datasheet

7
LT1935
1935f
U
PACKAGE DESCRIPTIO
S5 Package
5-Lead Plastic TSOT-23
(Reference LTC DWG # 05-08-1635)
1.50 – 1.75
(NOTE 4)
2.80 BSC
0.30 – 0.45 TYP
5 PLCS (NOTE 3)
DATUM ‘A’
0.09 – 0.20
(NOTE 3)
S5 TSOT-23 0302
PIN ONE
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
NOTE:
1. DIMENSIONS ARE IN MILLIMETERS
2. DRAWING NOT TO SCALE
3. DIMENSIONS ARE INCLUSIVE OF PLATING
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
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
GND
V
IN
SW
SHDN FB
V
IN
2.3V TO 4.8V
D1
L1
1.8µH
R1
29.4k
LT1935
C3
150pF
1935 TA01
C2
20µF
C1
4.7µF
R2
10k
V
OUT
5V
1A, V
IN
= 3.3V
0.6A, V
IN
= 2.5V
C1, C2: X5R OR X7R 6.3V
D1: ON SEMI MBRM120
L1: SUMIDA CR43-1R8
ON OFF
LOAD CURRENT (mA)
0
EFFICIENCY (%)
1200
400200 600 1000800
90
85
80
75
70
65
60
55
50
V
IN
= 3.3V
V
IN
= 2.5V
Efficiency, V
OUT
= 5V
5V Boost Converter
TYPICAL APPLICATIO S
U
GND
V
IN
SW
SHDN FB
V
IN
3.3V
D1
L1
4.2µH
R1
84.5k
LT1935
1935 TA02
C2
22µF
C1
4.7µF
R2
10k
V
OUT
12V
320mA
D1: ON SEMI MBRM120
L1: SUMIDA CDRH5D28-4R2
ON OFF
47pF
3.3V to 12V Boost Converter
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.