LT1307CS8#TRPBF Linear Technology, LT1307CS8#TRPBF Datasheet - Page 17

• Manufacturer Part Number: LT1307CS8#TRPBF
• Description: IC DC/DC CONV SINGLE CELL 8-SOIC
• Manufacturer: Linear Technology
• Type: Step-Up (Boost)r

Specifications of LT1307CS8#TRPBF

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 3.3V, 5V
• Current - Output: 100mA
• Frequency - Switching: 600kHz
• Voltage - Input: 1 ~ 5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

TYPICAL APPLICATIO S
1V TO 5V
V
IN
SHUTDOWN
1 F
CERAMIC
100k
1000pF
D1: MOTOROLA MBR0520L
L1: MURATA-ERIE LQH3C100K04
SHDN
V
3V TO 5.5V
SHUTDOWN
V
C
IN
LT1307
GND
V
D2, D3: LUMEX SSL-X100133SRC/4 "MEGA-BRITE" RED LED
IN
C1, C2: CERAMIC
V
IN
D1: 1N4148
AA
CELL
+
L1: MURATA-ERIE LQH3C100K04
3
1
SW
1:12
FB
•
T1
U
OR PANASONIC LNG992CF9 HIGH BRIGHTNESS BLUE LED
•
1 F
TANTALUM
1N4148
4
6
Single Cell Powered Constant Current LED Driver
C2
1 F
CERAMIC
0.01 F
2N3906
R2
240k
1%
OPTIONAL
DOUBLER
1N4148
Q1
+
High Voltage Flyback Converter
2000pF
47k
R1
Flash Memory VPP Supply
100k
C3
22 F
0.33 F
SHDN
V
R2
22k
V
C
IN
LBO
V
SHDN
LT1307
V
C
10 H
0.1 F
0.1 F
1307 TA06
IN
GND
L1
2V
V
100k
LT1307B
OUT
10 H
OUT
L1
SW
V
IN
FB
GND
SW
D1
LBI
T1: DALE LPE3325-A190, n = 12 [phone]
V
MAXIMUM DUTY CYCLE: 80%
FOR FLYBACK, V
FOR 1V
FOR 2V
HIGHER VOLTAGES ACHIEVED WITH CAPACITIVE DOUBLER OR TRIPLER
NO SNUBBER REQUIRED WITH SPECIFIED TRANSFORMER AND V
FB
OUT
ON/OFF
= 1.22V 1 +
2M
1%
232k
1%
D1
NC
IN
IN
, MAXIMUM V
, MAXIMUM V
10pF
1307 TA09
D2
R1
5.1
OUT
40mA
R1
R2
1307 TA05
=
1 – DC
OUT
OUT
0.33 F
CERAMIC
DC
12V/30mA FROM 3V
12V/60mA FROM 5V
~250mV
2
=
C1
1 F
CERAMIC
1 – 0.8
85V.
n(V
0.8
P-P
IN
– V
12(1 – 0.2) 37V
RIPPLE
LT1307/LT1307B
SW
)
IN
< 5V
17
1307fa