LT1302CS8#PBF Linear Technology, LT1302CS8#PBF Datasheet - Page 13

• Manufacturer Part Number: LT1302CS8#PBF
• Description: IC DC/DC CONV STEP-UP ADJ 8-SOIC
• Manufacturer: Linear Technology
• Type: Step-Up (Boost)r

Specifications of LT1302CS8#PBF

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 2 ~ 12 V
• Current - Output: 120mA
• Frequency - Switching: 220kHz
• Voltage - Input: 2 ~ 8 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Power - Output: 700mW
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

APPLICATIONS
As an example, consider a boost converter with the
following specifications:
Total power loss in the LT1302, assuming R = 0.15 and
V
Using the CS8 package with 100 sq. mm topside and
backside heat sinking:
With the N8 package:
At a 70 C ambient, die temperature would be 101.2 C.
D
V
V
I
P
= 0.45V, is:
OUT
D
IN
OUT
T = (312mW)(84 C/W) = 25.9 C rise
T = 31.2 C
223
= 3V
= 700mA
= 6V
700
mW
mA
89
2
mW
0 15
U
INFORMATION
312
U
mW
3
0 7 6 0 15
6 0 45
W
3
U
2
3
0 7 6 0 15
6 0 45
3
0 7 6 0 45 3
27
LT1302/LT1302-5
13