MIC2145_05 Datasheet, PDF (2/15 Pages) Micrel Semiconductor – High Efficiency 2.5W Boost Converter

MIC2145
Pin Configuration
EN 1
SS 2
RSET 3
PGND 4
8 SGND
7 FB
6 VDD
5 SW
8-Lead MSOP (MM)
Micrel, Inc.
EN 1
SS 2
RSET 3
PGND 4
PGND ⁵
10 SGND
9 FB
8 VDD
7 SW
6 _SW
3mm×3mm MLF-10L (ML)
Pin Description
Pin Number
MSOP
1
Pin Number
MLF
1
2
2
3
3
4
4, 5
5
6, 7
6
8
7
9
8
10
Pin Name
EN
SS
RSET
PGND
SW
VDD
FB
SGND
Pin Function
Enable (Input): Logic high (≥1.5V) enables regulator. Logic low (≤0.7V)
shuts down regulator. Do not float.
Soft Start Capacitor (External Component): Connect external capacitor to
ground to control the rise time of the output voltage.
Current Limit (External Component): Sets peak current limit of the internal
power MOSFET using an external resistor.
Power Ground (Return): Internal power MOSFET source.
Switch Node (Input): Internal power MOSFET drain.
Supply (Input): +2.4V to +16V for internal circuitry.
Feedback (Input): Output voltage sense node.
Small Signal Ground (Return): Ground
M9999-042205
2
April 2005