MIC2290_07 Datasheet, PDF (2/13 Pages) Micrel Semiconductor – 2mm × 2mm PWM Boost Regulator with Internal Schotty Diode

Micrel, Inc.
Ordering Information
Part Number
MIC2290BML
MIC2290YML
Marking
Code
SRC
SRC
Output
Voltage
Adj.
Adj.
Overvoltage
Protection
34V
34V
Junction
Temp. Range
–40° to +125°C
–40° to +125°C
Package
8-Pin 2x2 MLF^®
8-Pin 2x2 MLF^®
MIC2290
Lead Finish
Standard
Pb-Free
Pin Configuration
OUT 1
VIN 2
EN 3
AGND 4
8 PGND
7 SW
6 FB
5 NC
8-Pin 2mm x 2mm MLF^® (ML)
(Top View)
Pin Description
Pin Number
1
2
3
4
5
6
7
8
EP
Pin Name
OUT
VIN
EN
AGND
NC
FB
SW
PGND
GND
Pin Function
Output pin (Output): Output voltage. Connect to FB resistor divider. This pin
has an internal 34V output overvoltage clamp. See “Block Diagram” and
“Applications” section for more information.
Supply (Input): 2.5V to 10V input voltage.
Enable (Input): Logic high enables regulator. Logic low shuts down regulator.
Analog ground.
No connect (no internal connection to die).
Feedback (Input): Output voltage sense node. Connect feedback resistor
network to this pin.
V_OUT
= 1.24V⎜⎛1 + ^R1 ⎟⎞ .
⎝ ^R2 ⎠
Switch node (Input): Internal power Bipolar collector.
Power ground.
Ground (Return): Exposed backside pad.
October 2007
2
M9999-101907