MIC2145BML Micrel Inc, MIC2145BML Datasheet - Page 6

• Manufacturer Part Number: MIC2145BML
• Description: IC BOOST CONV MICROPWR 10-MLF
• Manufacturer: Micrel Inc
• Type: Step-Up (Boost), Flyback, Sepicr

Specifications of MIC2145BML

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: Adj to 16V
• Current - Output: 500mA
• Frequency - Switching: 450kHz
• Voltage - Input: 2.4 ~ 16 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MLF®, QFN
• Power - Output: 2.5W
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

MIC2145
Functional Diagram
M9999-042205
R
SET
RSET
EN
V
IN
3
1
Shutdown
Thermal
On(/Off)
C
IN
One Shot
800nS
/Q
SS
2
/S
/R
C
SS
Current Limit
Figure 1. Block Diagram
VDD
Comparator
6
6
Start
Soft
Comparator
Feedback
10µH
L1
MOSFET
POWER
SW
V
REF
5
D1
8
4
7
SGND
PGND
FB
V
OUT
R1
R2
=
1.08


C
1
FF
+
R1
R2



C
V
OUT
OUT
Micrel, Inc.
April 2005