MIC2206 Datasheet, PDF (2/12 Pages) Micrel Semiconductor – 2MHz PWM Synchronous Buck Regulator with LOWQ Mode and Voltage Scaling

Micrel
MIC2206
Ordering Information
Part Number
Output Voltage⁽¹⁾
(PWM/LDO)
Junction Temp. Range
MIC2206-1.8YML
1.8V/1.0V
–40° to +125°C
Note:
1. Other Voltage options available. Contact Micrel for details.
Package
3x3 MLF-10L
Lead Finish
Pb-free
Pin Configuration
AGND 1
10 PGND
LDO 2
9 SW
BIAS 3
8 VIN
AVIN 4
FB 5
7 LOWQ
EP
6 EN
3mm x 3mm MLF-10L (ML)
Pin Description
Pin Number
1
2
3
4
5
6
7
8
9
10
EP
Pin Name
AGND
LDO
BIAS
AVIN
FB
EN
_____
LOWQ
VIN
SW
PGND
GND
Pin Function
Analog (signal) Ground.
LDO Output (Output): Connect to V_OUT for LDO mode operation.
Internal circuit bias supply. Must be de-coupled to signal ground with a 0.1µF
capacitor and should not be loaded.
Analog Supply Voltage (Input): Supply voltage for the analog control circuitry and
LDO input power. Requires bypass capacitor to GND.
Feedback. Input to the error amplifier and internal feedback resistors. Place a
100pF ceramic capacitor from FB to the output.
Enable (Input). Logic low will shut down the device, reducing the quiescent
current to less than 5µA.
Enable LDO Mode (Input): Logic low enables the internal LDO and disables the
PWM operation. Logic high enables the PWM mode and disables the LDO
mode.
Supply Voltage (Input): Supply voltage for the internal switches and drivers.
Switch (Output): Internal power MOSFET output switches.
Power Ground.
Ground, backside pad.
April 2005
2
M9999-041905
www.micrel.com